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Merge master, refactor to work with ARG

This commit is contained in:
Priya Wadhwa 2018-05-11 15:53:11 -07:00
parent 347ce66a9b ef191beb5b
commit 282f8abbee
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2
.travis.yml
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@ -2,7 +2,7 @@ language: go
os: linux
go:
- 1.9.x
- 1.10.x
go_import_path: github.com/GoogleContainerTools/kaniko
script:

607
Gopkg.lock generated
View File

@ -12,8 +12,23 @@
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@ -79,8 +373,8 @@
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@ -99,7 +393,7 @@
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@ -218,16 +756,27 @@
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@ -264,7 +819,7 @@
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@ -321,8 +878,8 @@
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]
revision = "d11072e7ca9811b1100b80ca0269ac831f06d024"
version = "v1.11.3"
revision = "8124abf74e7633d82a5b96585b0da487d0e6eed0"
source = "google.golang.org/grpc"
[[projects]]
name = "gopkg.in/yaml.v2"
@ -333,6 +890,6 @@
[solve-meta]
analyzer-name = "dep"
analyzer-version = 1
inputs-digest = "18d970ab8a3487013ef13e0aed686929d30bcebc1b9adaa329e9db414189fcf6"
inputs-digest = "7dc0b12e9e50b1e09cfb6bf10cbeca2299a3c12ef5dd1074666215f683969b10"
solver-name = "gps-cdcl"
solver-version = 1

22
Gopkg.toml
View File

@ -20,9 +20,29 @@
[[constraint]]
name = "github.com/docker/docker"
revision = "b1a1234c60cf87048814aa37da523b03a7b0d344"
revision = "dfde597fbbb5de4a7559a68980401c8c405aa9af"
source = "github.com/docker/docker"
[[override]]
name = "github.com/opencontainers/runc"
revision = "4fc53a81fb7c994640722ac585fa9ca548971871"
source = "github.com/opencontainers/runc"
[[override]]
name = "github.com/ishidawataru/sctp"
revision = "07191f837fedd2f13d1ec7b5f885f0f3ec54b1cb"
source = "github.com/ishidawataru/sctp"
[[override]]
name = "github.com/vishvananda/netlink"
revision = "b2de5d10e38ecce8607e6b438b6d174f389a004e"
source = "github.com/vishvananda/netlink"
[[override]]
name = "google.golang.org/grpc"
revision = "8124abf74e7633d82a5b96585b0da487d0e6eed0"
source = "google.golang.org/grpc"
[[constraint]]
name = "github.com/genuinetools/amicontained"
version = "0.4.0"

61
README.md
View File

@ -36,7 +36,6 @@ After each command, we append a layer of changed files to the base image (if the
The majority of Dockerfile commands can be executed with kaniko, but we're still working on supporting the following commands:
* HEALTHCHECK
* ARG
Multi-Stage Dockerfiles are also unsupported currently, but will be ready soon.
@ -147,13 +146,67 @@ To run kaniko in Docker, run the following command:
kaniko uses Docker credential helpers to push images to a registry.
kaniko comes with support for GCR, but configuring another credential helper should allow pushing to a different registry.
kaniko comes with support for GCR and Amazon ECR, but configuring another credential helper should allow pushing to a different registry.
#### Pushing to Amazon ECR
The Amazon ECR [credential helper](https://github.com/awslabs/amazon-ecr-credential-helper) is built in to the kaniko executor image.
To configure credentials, you will need to do the following:
1. Update the `credHelpers` section of [config.json](https://github.com/GoogleContainerTools/kaniko/blob/master/files/config.json) with the specific URI of your ECR registry:
```json
{
"credHelpers": {
"aws_account_id.dkr.ecr.region.amazonaws.com": "ecr-login"
}
}
```
You can mount in the new config as a configMap:
```shell
kubectl create configmap docker-config --from-file=<path to config.json>
```
2. Create a Kubernetes secret for your `~/.aws/credentials` file so that credentials can be accessed within the cluster.
To create the secret, run:
```shell
kubectl create secret generic aws-secret --from-file=<path to .aws/credentials>
```
The Kubernetes Pod spec should look similar to this, with the args parameters filled in:
```yaml
apiVersion: v1
kind: Pod
metadata:
name: kaniko
spec:
containers:
- name: kaniko
image: gcr.io/kaniko-project/executor:latest
args: ["--dockerfile=<path to Dockerfile>",
"--context=<path to build context>",
"--destination=<aws_account_id.dkr.ecr.region.amazonaws.com/my-repository:my-tag>"]
volumeMounts:
- name: aws-secret
mountPath: /root/.aws/
- name: docker-config
mountPath: /root/.docker/
restartPolicy: Never
volumes:
- name: aws-secret
secret:
secretName: aws-secret
- name: docker-config
configMap:
name: docker-config
```
### Debug Image
We provide `gcr.io/kaniko-project/executor:debug` as a a version of the executor image based off a Debian image.
This provides a shell and can be useful for debugging.
The kaniko executor image is based off of scratch and doesn't contain a shell.
We provide `gcr.io/kaniko-project/executor:debug`, a debug image which consists of the kaniko executor image along with a busybox shell to enter.
You can launch the debug image with a shell entrypoint:
```shell
docker run -it --entrypoint=/busybox/sh gcr.io/kaniko-project/executor:debug
```
## Security
kaniko by itself **does not** make it safe to run untrusted builds inside your cluster, or anywhere else.

43
cmd/executor/cmd/args.go Normal file
View File

@ -0,0 +1,43 @@
/*
Copyright 2018 Google LLC
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package cmd
import (
"github.com/sirupsen/logrus"
"strings"
)
// The buildArg type is used to pass in multiple --build-arg flags
type buildArg []string
// Now, for our new type, implement the two methods of
// the flag.Value interface...
// The first method is String() string
func (b *buildArg) String() string {
return strings.Join(*b, ",")
}
// The second method is Set(value string) error
func (b *buildArg) Set(value string) error {
logrus.Infof("appending to build args %s", value)
*b = append(*b, value)
return nil
}
func (b *buildArg) Type() string {
return "build-arg type"
}

24
cmd/executor/cmd/root.go
View File

@ -21,23 +21,24 @@ import (
"os"
"path/filepath"
"github.com/genuinetools/amicontained/container"
"github.com/GoogleContainerTools/kaniko/pkg/constants"
"github.com/GoogleContainerTools/kaniko/pkg/executor"
"github.com/GoogleContainerTools/kaniko/pkg/util"
"github.com/genuinetools/amicontained/container"
"github.com/sirupsen/logrus"
"github.com/spf13/cobra"
)
var (
dockerfilePath string
destination string
srcContext string
snapshotMode string
bucket string
logLevel string
force bool
dockerfilePath string
destination string
srcContext string
snapshotMode string
bucket string
dockerInsecureSkipTLSVerify bool
logLevel string
force bool
buildArgs buildArg
)
func init() {
@ -45,7 +46,10 @@ func init() {
RootCmd.PersistentFlags().StringVarP(&srcContext, "context", "c", "/workspace/", "Path to the dockerfile build context.")
RootCmd.PersistentFlags().StringVarP(&bucket, "bucket", "b", "", "Name of the GCS bucket from which to access build context as tarball.")
RootCmd.PersistentFlags().StringVarP(&destination, "destination", "d", "", "Registry the final image should be pushed to (ex: gcr.io/test/example:latest)")
RootCmd.MarkPersistentFlagRequired("destination")
RootCmd.PersistentFlags().StringVarP(&snapshotMode, "snapshotMode", "", "full", "Set this flag to change the file attributes inspected during snapshotting")
RootCmd.PersistentFlags().VarP(&buildArgs, "build-arg", "", "This flag allows you to pass in ARG values at build time. Set it repeatedly for multiple values.")
RootCmd.PersistentFlags().BoolVarP(&dockerInsecureSkipTLSVerify, "insecure-skip-tls-verify", "", false, "Push to insecure registry ignoring TLS verify")
RootCmd.PersistentFlags().StringVarP(&logLevel, "verbosity", "v", constants.DefaultLogLevel, "Log level (debug, info, warn, error, fatal, panic")
RootCmd.PersistentFlags().BoolVarP(&force, "force", "", false, "Force building outside of a container")
}
@ -73,7 +77,7 @@ var RootCmd = &cobra.Command{
logrus.Error(err)
os.Exit(1)
}
ref, image, err := executor.DoBuild(dockerfilePath, srcContext, snapshotMode)
ref, image, err := executor.DoBuild(dockerfilePath, srcContext, snapshotMode, buildArgs)
if err != nil {
logrus.Error(err)
os.Exit(1)

10
deploy/Dockerfile
View File

@ -18,13 +18,17 @@ FROM golang:1.10
WORKDIR /go/src/github.com/GoogleContainerTools/kaniko
COPY . .
RUN make
WORKDIR /usr/local/bin
ADD https://github.com/GoogleCloudPlatform/docker-credential-gcr/releases/download/v1.4.3-static/docker-credential-gcr_linux_amd64-1.4.3.tar.gz .
RUN tar -xvzf /usr/local/bin/docker-credential-gcr_linux_amd64-1.4.3.tar.gz
# Get GCR credential helper
ADD https://github.com/GoogleCloudPlatform/docker-credential-gcr/releases/download/v1.4.3-static/docker-credential-gcr_linux_amd64-1.4.3.tar.gz /usr/local/bin/
RUN tar -C /usr/local/bin/ -xvzf /usr/local/bin/docker-credential-gcr_linux_amd64-1.4.3.tar.gz
# Get Amazon ECR credential helper
RUN go get -u github.com/awslabs/amazon-ecr-credential-helper/ecr-login/cli/docker-credential-ecr-login
RUN make -C /go/src/github.com/awslabs/amazon-ecr-credential-helper linux-amd64
FROM scratch
COPY --from=0 /go/src/github.com/GoogleContainerTools/kaniko/out/executor /kaniko/executor
COPY --from=0 /usr/local/bin/docker-credential-gcr /usr/local/bin/docker-credential-gcr
COPY --from=0 /go/src/github.com/awslabs/amazon-ecr-credential-helper/bin/linux-amd64/docker-credential-ecr-login /usr/local/bin/docker-credential-ecr-login
COPY files/ca-certificates.crt /kaniko/ssl/certs/
COPY files/config.json /root/.docker/
RUN ["docker-credential-gcr", "config", "--token-source=env"]

31
deploy/Dockerfile_debug
View File

@ -12,14 +12,37 @@
# See the License for the specific language governing permissions and
# limitations under the License.
# Builds the executor from debian
# Builds the static Go image to execute in a Kubernetes job
FROM gcr.io/google-appengine/debian9:latest
COPY out/executor /kaniko/executor
# Stage 0: Build the executor binary and get credential helpers
FROM golang:1.10
WORKDIR /go/src/github.com/GoogleContainerTools/kaniko
COPY . .
RUN make
# Get GCR credential helper
ADD https://github.com/GoogleCloudPlatform/docker-credential-gcr/releases/download/v1.4.3-static/docker-credential-gcr_linux_amd64-1.4.3.tar.gz /usr/local/bin/
RUN tar -C /usr/local/bin/ -xvzf /usr/local/bin/docker-credential-gcr_linux_amd64-1.4.3.tar.gz
# Get Amazon ECR credential helper
RUN go get -u github.com/awslabs/amazon-ecr-credential-helper/ecr-login/cli/docker-credential-ecr-login
RUN make -C /go/src/github.com/awslabs/amazon-ecr-credential-helper linux-amd64
# Stage 1: Get the busybox shell
FROM gcr.io/cloud-builders/bazel:latest
RUN git clone https://github.com/GoogleContainerTools/distroless.git
WORKDIR /distroless
RUN bazel build busybox:busybox.tar
RUN tar -C /distroless/bazel-genfiles/busybox/ -xf /distroless/bazel-genfiles/busybox/busybox.tar
FROM scratch
COPY --from=0 /go/src/github.com/GoogleContainerTools/kaniko/out/executor /kaniko/executor
COPY --from=0 /usr/local/bin/docker-credential-gcr /usr/local/bin/docker-credential-gcr
COPY --from=0 /go/src/github.com/awslabs/amazon-ecr-credential-helper/bin/linux-amd64/docker-credential-ecr-login /usr/local/bin/docker-credential-ecr-login
COPY --from=1 /distroless/bazel-genfiles/busybox/busybox/ /busybox/
COPY files/ca-certificates.crt /kaniko/ssl/certs/
COPY files/docker-credential-gcr /usr/local/bin/
COPY files/config.json /root/.docker/
RUN ["docker-credential-gcr", "config", "--token-source=env"]
ENV HOME /root
ENV USER /root
ENV PATH /usr/local/bin
ENV SSL_CERT_DIR=/kaniko/ssl/certs
ENTRYPOINT ["/kaniko/executor"]

7
deploy/executor-release.yaml
View File

@ -3,4 +3,9 @@ steps:
- name: "gcr.io/cloud-builders/docker"
args: ["build", "-f", "deploy/Dockerfile",
"-t", "gcr.io/kaniko-project/executor:${COMMIT_SHA}", "."]
images: ["gcr.io/kaniko-project/executor:${COMMIT_SHA}"]
# Then, we want to build kaniko:debug
- name: "gcr.io/cloud-builders/docker"
args: ["build", "-f", "deploy/Dockerfile_debug",
"-t", "gcr.io/kaniko-project/executor:debug-${COMMIT_SHA}", "."]
images: ["gcr.io/kaniko-project/executor:${COMMIT_SHA}",
"gcr.io/kaniko-project/executor:debug-${COMMIT_SHA}"]

4
integration_tests/dockerfiles/Dockerfile_test_add
View File

@ -14,5 +14,9 @@ ADD $contextenv/* /tmp/${contextenv}/
ADD context/tars/fil* /tars/
ADD context/tars/file.tar /tars_again
# Test with ARG
ARG file
COPY $file /arg
# Finally, test adding a remote URL, concurrently with a normal file
ADD https://github.com/GoogleCloudPlatform/docker-credential-gcr/releases/download/v1.4.3/docker-credential-gcr_linux_386-1.4.3.tar.gz context/foo /test/all/

2
integration_tests/dockerfiles/Dockerfile_test_copy
View File

@ -1,4 +1,4 @@
FROM gcr.io/distroless/base
FROM alpine:3.7
COPY context/foo foo
COPY context/foo /foodir/
COPY context/bar/b* bar/

3
integration_tests/dockerfiles/Dockerfile_test_multistage
View File

@ -6,4 +6,5 @@ ENV foopath context/foo
COPY --from=0 $foopath context/b* /foo/
FROM gcr.io/distroless/base:latest
COPY --from=second /foo /foo2
ARG file
COPY --from=second /foo $file

3
integration_tests/dockerfiles/Dockerfile_test_onbuild
View File

@ -1,6 +1,7 @@
FROM gcr.io/kaniko-test/onbuild-base:latest
COPY context/foo foo
ENV dir /new/workdir/
ONBUILD RUN echo "onbuild" > /tmp/onbuild
ARG file
ONBUILD RUN echo "onbuild" > $file
ONBUILD RUN echo "onbuild 2" > ${dir}
ONBUILD WORKDIR /new/workdir

4
integration_tests/dockerfiles/Dockerfile_test_run
View File

@ -17,3 +17,7 @@ RUN echo "hey" > /etc/foo
RUN echo "baz" > /etc/baz
RUN cp /etc/baz /etc/bar
RUN rm /etc/baz
# Test with ARG
ARG file
RUN echo "run" > $file

14
integration_tests/dockerfiles/Dockerfile_test_scratch Normal file
View File

@ -0,0 +1,14 @@
FROM scratch
# First, make sure simple arg replacement works
ARG file
COPY $file /foo
# Check that setting a default value works
ARG file2=context/bar/bat
COPY $file2 /bat
# Check that overriding a default value works
ARG file3=context/bar/baz
COPY $file3 /baz
# Check that setting an ENV will override the ARG
ENV file context/bar/bam/bat
COPY $file /env

4
integration_tests/dockerfiles/Dockerfile_test_workdir
View File

@ -11,3 +11,7 @@ ENV dir /another/new/dir
WORKDIR $dir/newdir
WORKDIR $dir/$doesntexist
WORKDIR /
# Test with ARG
ARG workdir
WORKDIR $workdir

44
integration_tests/integration_test_yaml.go
View File

@ -47,6 +47,7 @@ var fileTests = []struct {
kanikoContextBucket bool
repo string
snapshotMode string
args []string
}{
{
description: "test extract filesystem",
@ -64,6 +65,9 @@ var fileTests = []struct {
dockerContext: dockerfilesPath,
kanikoContext: dockerfilesPath,
repo: "test-run",
args: []string{
"file=/file",
},
},
{
description: "test run no files changed",
@ -99,6 +103,9 @@ var fileTests = []struct {
dockerContext: buildcontextPath,
kanikoContext: buildcontextPath,
repo: "test-workdir",
args: []string{
"workdir=/arg/workdir",
},
},
{
description: "test volume",
@ -115,6 +122,9 @@ var fileTests = []struct {
dockerContext: buildcontextPath,
kanikoContext: buildcontextPath,
repo: "test-add",
args: []string{
"file=context/foo",
},
},
{
description: "test mv add",
@ -139,6 +149,22 @@ var fileTests = []struct {
dockerContext: buildcontextPath,
kanikoContext: buildcontextPath,
repo: "test-onbuild",
args: []string{
"file=/tmp/onbuild",
},
},
{
description: "test scratch",
dockerfilePath: "/workspace/integration_tests/dockerfiles/Dockerfile_test_scratch",
configPath: "/workspace/integration_tests/dockerfiles/config_test_scratch.json",
dockerContext: buildcontextPath,
kanikoContext: buildcontextPath,
repo: "test-scratch",
args: []string{
"hello=hello-value",
"file=context/foo",
"file3=context/b*",
},
},
{
description: "test multistage",
@ -147,6 +173,9 @@ var fileTests = []struct {
dockerContext: buildcontextPath,
kanikoContext: buildcontextPath,
repo: "test-multistage",
args: []string{
"file=/foo2",
},
},
}
@ -231,18 +260,23 @@ func main() {
Args: []string{"push", onbuildBaseImage},
}
y := testyaml{
Steps: []step{containerDiffStep, containerDiffPermissions, GCSBucketTarBuildContext, uploadTarBuildContext, buildExecutorImage,
buildOnbuildImage, pushOnbuildBase},
Steps: []step{containerDiffStep, containerDiffPermissions, GCSBucketTarBuildContext,
uploadTarBuildContext, buildExecutorImage, buildOnbuildImage, pushOnbuildBase},
Timeout: "1200s",
}
for _, test := range fileTests {
// First, build the image with docker
dockerImageTag := testRepo + dockerPrefix + test.repo
var buildArgs []string
buildArgFlag := "--build-arg"
for _, arg := range test.args {
buildArgs = append(buildArgs, buildArgFlag)
buildArgs = append(buildArgs, arg)
}
dockerBuild := step{
Name: dockerImage,
Args: []string{"build", "-t", dockerImageTag, "-f", test.dockerfilePath, test.dockerContext},
Args: append([]string{"build", "-t", dockerImageTag, "-f", test.dockerfilePath, test.dockerContext}, buildArgs...),
}
// Then, buld the image with kaniko
kanikoImage := testRepo + kanikoPrefix + test.repo
snapshotMode := ""
@ -255,7 +289,7 @@ func main() {
}
kaniko := step{
Name: executorImage,
Args: []string{"--destination", kanikoImage, "--dockerfile", test.dockerfilePath, contextFlag, test.kanikoContext, snapshotMode},
Args: append([]string{"--destination", kanikoImage, "--dockerfile", test.dockerfilePath, contextFlag, test.kanikoContext, snapshotMode}, buildArgs...),
}
// Pull the kaniko image

8
pkg/commands/add.go
View File

@ -17,6 +17,7 @@ limitations under the License.
package commands
import (
"github.com/GoogleContainerTools/kaniko/pkg/dockerfile"
"path/filepath"
"strings"
@ -41,7 +42,7 @@ type AddCommand struct {
// - If dest doesn't end with a slash, the filepath is inferred to be <dest>/<filename>
// 2. If <src> is a local tar archive:
// -If <src> is a local tar archive, it is unpacked at the dest, as 'tar -x' would
func (a *AddCommand) ExecuteCommand(config *v1.Config) error {
func (a *AddCommand) ExecuteCommand(config *v1.Config, buildArgs *dockerfile.BuildArgs) error {
srcs := a.cmd.SourcesAndDest[:len(a.cmd.SourcesAndDest)-1]
dest := a.cmd.SourcesAndDest[len(a.cmd.SourcesAndDest)-1]
@ -49,7 +50,8 @@ func (a *AddCommand) ExecuteCommand(config *v1.Config) error {
logrus.Infof("dest: %s", dest)
// First, resolve any environment replacement
resolvedEnvs, err := util.ResolveEnvironmentReplacementList(a.cmd.SourcesAndDest, config.Env, true)
replacementEnvs := buildArgs.ReplacementEnvs(config.Env)
resolvedEnvs, err := util.ResolveEnvironmentReplacementList(a.cmd.SourcesAndDest, replacementEnvs, true)
if err != nil {
return err
}
@ -101,7 +103,7 @@ func (a *AddCommand) ExecuteCommand(config *v1.Config) error {
},
buildcontext: a.buildcontext,
}
if err := copyCmd.ExecuteCommand(config); err != nil {
if err := copyCmd.ExecuteCommand(config, buildArgs); err != nil {
return err
}
a.snapshotFiles = append(a.snapshotFiles, copyCmd.snapshotFiles...)

46
pkg/commands/arg.go Normal file
View File

@ -0,0 +1,46 @@
/*
Copyright 2018 Google LLC
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package commands
import (
"github.com/GoogleContainerTools/kaniko/pkg/dockerfile"
"github.com/docker/docker/builder/dockerfile/instructions"
"github.com/google/go-containerregistry/v1"
"github.com/sirupsen/logrus"
"strings"
)
type ArgCommand struct {
cmd *instructions.ArgCommand
}
// ExecuteCommand only needs to add this ARG key/value as seen
func (r *ArgCommand) ExecuteCommand(config *v1.Config, buildArgs *dockerfile.BuildArgs) error {
logrus.Info("ARG")
buildArgs.AddArg(r.cmd.Key, r.cmd.Value)
return nil
}
// FilesToSnapshot returns an empty array since this command only touches metadata.
func (r *ArgCommand) FilesToSnapshot() []string {
return []string{}
}
// CreatedBy returns some information about the command for the image config history
func (r *ArgCommand) CreatedBy() string {
return strings.Join([]string{r.cmd.Name(), r.cmd.Key}, " ")
}

3
pkg/commands/cmd.go
View File

@ -17,6 +17,7 @@ limitations under the License.
package commands
import (
"github.com/GoogleContainerTools/kaniko/pkg/dockerfile"
"strings"
"github.com/docker/docker/builder/dockerfile/instructions"
@ -30,7 +31,7 @@ type CmdCommand struct {
// ExecuteCommand executes the CMD command
// Argument handling is the same as RUN.
func (c *CmdCommand) ExecuteCommand(config *v1.Config) error {
func (c *CmdCommand) ExecuteCommand(config *v1.Config, buildArgs *dockerfile.BuildArgs) error {
logrus.Info("cmd: CMD")
var newCommand []string
if c.cmd.PrependShell {

8
pkg/commands/cmd_test.go
View File

@ -16,12 +16,10 @@ limitations under the License.
package commands
import (
"testing"
"github.com/google/go-containerregistry/v1"
"github.com/GoogleContainerTools/kaniko/testutil"
"github.com/docker/docker/builder/dockerfile/instructions"
"github.com/google/go-containerregistry/v1"
"testing"
)
var cmdTests = []struct {
@ -56,7 +54,7 @@ func TestExecuteCmd(t *testing.T) {
},
},
}
err := cmd.ExecuteCommand(cfg)
err := cmd.ExecuteCommand(cfg, nil)
testutil.CheckErrorAndDeepEqual(t, false, err, test.expectedCmd, cfg.Cmd)
}
}

7
pkg/commands/commands.go
View File

@ -17,6 +17,7 @@ limitations under the License.
package commands
import (
"github.com/GoogleContainerTools/kaniko/pkg/dockerfile"
"github.com/docker/docker/builder/dockerfile/instructions"
"github.com/google/go-containerregistry/v1"
"github.com/pkg/errors"
@ -28,7 +29,7 @@ type DockerCommand interface {
// 1. Making required changes to the filesystem (ex. copying files for ADD/COPY or setting ENV variables)
// 2. Updating metadata fields in the config
// It should not change the config history.
ExecuteCommand(*v1.Config) error
ExecuteCommand(*v1.Config, *dockerfile.BuildArgs) error
// The config history has a "created by" field, should return information about the command
CreatedBy() string
// A list of files to snapshot, empty for metadata commands or nil if we don't know
@ -63,6 +64,10 @@ func GetCommand(cmd instructions.Command, buildcontext string) (DockerCommand, e
return &VolumeCommand{cmd: c}, nil
case *instructions.StopSignalCommand:
return &StopSignalCommand{cmd: c}, nil
case *instructions.ArgCommand:
return &ArgCommand{cmd: c}, nil
case *instructions.ShellCommand:
return &ShellCommand{cmd: c}, nil
case *instructions.MaintainerCommand:
logrus.Warnf("%s is deprecated, skipping", cmd.Name())
return nil, nil

13
pkg/commands/copy.go
View File

@ -18,13 +18,15 @@ package commands
import (
"github.com/GoogleContainerTools/kaniko/pkg/constants"
"os"
"path/filepath"
"strings"
"github.com/GoogleContainerTools/kaniko/pkg/dockerfile"
"github.com/GoogleContainerTools/kaniko/pkg/util"
"github.com/docker/docker/builder/dockerfile/instructions"
"github.com/google/go-containerregistry/v1"
"github.com/sirupsen/logrus"
"os"
"path/filepath"
"strings"
)
type CopyCommand struct {
@ -33,7 +35,7 @@ type CopyCommand struct {
snapshotFiles []string
}
func (c *CopyCommand) ExecuteCommand(config *v1.Config) error {
func (c *CopyCommand) ExecuteCommand(config *v1.Config, buildArgs *dockerfile.BuildArgs) error {
srcs := c.cmd.SourcesAndDest[:len(c.cmd.SourcesAndDest)-1]
dest := c.cmd.SourcesAndDest[len(c.cmd.SourcesAndDest)-1]
@ -44,8 +46,9 @@ func (c *CopyCommand) ExecuteCommand(config *v1.Config) error {
if c.cmd.From != "" {
c.buildcontext = filepath.Join(constants.KanikoDir, c.cmd.From)
}
replacementEnvs := buildArgs.ReplacementEnvs(config.Env)
// First, resolve any environment replacement
resolvedEnvs, err := util.ResolveEnvironmentReplacementList(c.cmd.SourcesAndDest, config.Env, true)
resolvedEnvs, err := util.ResolveEnvironmentReplacementList(c.cmd.SourcesAndDest, replacementEnvs, true)
if err != nil {
return err
}

3
pkg/commands/entrypoint.go
View File

@ -17,6 +17,7 @@ limitations under the License.
package commands
import (
"github.com/GoogleContainerTools/kaniko/pkg/dockerfile"
"strings"
"github.com/docker/docker/builder/dockerfile/instructions"
@ -29,7 +30,7 @@ type EntrypointCommand struct {
}
// ExecuteCommand handles command processing similar to CMD and RUN,
func (e *EntrypointCommand) ExecuteCommand(config *v1.Config) error {
func (e *EntrypointCommand) ExecuteCommand(config *v1.Config, buildArgs *dockerfile.BuildArgs) error {
logrus.Info("cmd: ENTRYPOINT")
var newCommand []string
if e.cmd.PrependShell {

2
pkg/commands/entrypoint_test.go
View File

@ -55,7 +55,7 @@ func TestEntrypointExecuteCmd(t *testing.T) {
},
},
}
err := cmd.ExecuteCommand(cfg)
err := cmd.ExecuteCommand(cfg, nil)
testutil.CheckErrorAndDeepEqual(t, false, err, test.expectedCmd, cfg.Entrypoint)
}
}

61
pkg/commands/env.go
View File

@ -17,6 +17,7 @@ limitations under the License.
package commands
import (
"github.com/GoogleContainerTools/kaniko/pkg/dockerfile"
"strings"
"github.com/GoogleContainerTools/kaniko/pkg/util"
@ -29,65 +30,11 @@ type EnvCommand struct {
cmd *instructions.EnvCommand
}
func NewEnvCommand(cmd *instructions.EnvCommand) EnvCommand {
return EnvCommand{
cmd: cmd,
}
}
func (e *EnvCommand) ExecuteCommand(config *v1.Config) error {
func (e *EnvCommand) ExecuteCommand(config *v1.Config, buildArgs *dockerfile.BuildArgs) error {
logrus.Info("cmd: ENV")
newEnvs := e.cmd.Env
for index, pair := range newEnvs {
expandedKey, err := util.ResolveEnvironmentReplacement(pair.Key, config.Env, false)
if err != nil {
return err
}
expandedValue, err := util.ResolveEnvironmentReplacement(pair.Value, config.Env, false)
if err != nil {
return err
}
newEnvs[index] = instructions.KeyValuePair{
Key: expandedKey,
Value: expandedValue,
}
}
return updateConfigEnv(newEnvs, config)
}
func updateConfigEnv(newEnvs []instructions.KeyValuePair, config *v1.Config) error {
// First, convert config.Env array to []instruction.KeyValuePair
var kvps []instructions.KeyValuePair
for _, env := range config.Env {
entry := strings.Split(env, "=")
kvps = append(kvps, instructions.KeyValuePair{
Key: entry[0],
Value: entry[1],
})
}
// Iterate through new environment variables, and replace existing keys
// We can't use a map because we need to preserve the order of the environment variables
Loop:
for _, newEnv := range newEnvs {
for index, kvp := range kvps {
// If key exists, replace the KeyValuePair...
if kvp.Key == newEnv.Key {
logrus.Debugf("Replacing environment variable %v with %v in config", kvp, newEnv)
kvps[index] = newEnv
continue Loop
}
}
// ... Else, append it as a new env variable
kvps = append(kvps, newEnv)
}
// Convert back to array and set in config
envArray := []string{}
for _, kvp := range kvps {
entry := kvp.Key + "=" + kvp.Value
envArray = append(envArray, entry)
}
config.Env = envArray
return nil
replacementEnvs := buildArgs.ReplacementEnvs(config.Env)
return util.UpdateConfigEnv(newEnvs, config, replacementEnvs)
}
// We know that no files have changed, so return an empty array

23
pkg/commands/env_test.go
View File

@ -16,11 +16,11 @@ limitations under the License.
package commands
import (
"testing"
"github.com/GoogleContainerTools/kaniko/pkg/dockerfile"
"github.com/GoogleContainerTools/kaniko/testutil"
"github.com/docker/docker/builder/dockerfile/instructions"
"github.com/google/go-containerregistry/v1"
"testing"
)
func TestUpdateEnvConfig(t *testing.T) {
@ -77,6 +77,10 @@ func Test_EnvExecute(t *testing.T) {
Key: "$path",
Value: "$home/",
},
{
Key: "$buildArg1",
Value: "$buildArg2",
},
},
},
}
@ -86,7 +90,20 @@ func Test_EnvExecute(t *testing.T) {
"home=/root",
"HOME=/root",
"/usr/=/root/",
"foo=foo2",
}
err := envCmd.ExecuteCommand(cfg)
buildArgs := setUpBuildArgs()
err := envCmd.ExecuteCommand(cfg, buildArgs)
testutil.CheckErrorAndDeepEqual(t, false, err, expectedEnvs, cfg.Env)
}
func setUpBuildArgs() *dockerfile.BuildArgs {
buildArgs := dockerfile.NewBuildArgs([]string{
"buildArg1=foo",
"buildArg2=foo2",
})
buildArgs.AddArg("buildArg1", nil)
d := "default"
buildArgs.AddArg("buildArg2", &d)
return buildArgs
}

6
pkg/commands/expose.go
View File

@ -18,6 +18,7 @@ package commands
import (
"fmt"
"github.com/GoogleContainerTools/kaniko/pkg/dockerfile"
"strings"
"github.com/GoogleContainerTools/kaniko/pkg/util"
@ -30,17 +31,18 @@ type ExposeCommand struct {
cmd *instructions.ExposeCommand
}
func (r *ExposeCommand) ExecuteCommand(config *v1.Config) error {
func (r *ExposeCommand) ExecuteCommand(config *v1.Config, buildArgs *dockerfile.BuildArgs) error {
logrus.Info("cmd: EXPOSE")
// Grab the currently exposed ports
existingPorts := config.ExposedPorts
if existingPorts == nil {
existingPorts = make(map[string]struct{})
}
replacementEnvs := buildArgs.ReplacementEnvs(config.Env)
// Add any new ones in
for _, p := range r.cmd.Ports {
// Resolve any environment variables
p, err := util.ResolveEnvironmentReplacement(p, config.Env, false)
p, err := util.ResolveEnvironmentReplacement(p, replacementEnvs, false)
if err != nil {
return err
}

9
pkg/commands/expose_test.go
View File

@ -17,6 +17,7 @@ limitations under the License.
package commands
import (
"github.com/GoogleContainerTools/kaniko/pkg/dockerfile"
"testing"
"github.com/GoogleContainerTools/kaniko/testutil"
@ -60,8 +61,8 @@ func TestUpdateExposedPorts(t *testing.T) {
"8085/tcp": {},
"8085/udp": {},
}
err := exposeCmd.ExecuteCommand(cfg)
buildArgs := dockerfile.NewBuildArgs([]string{})
err := exposeCmd.ExecuteCommand(cfg, buildArgs)
testutil.CheckErrorAndDeepEqual(t, false, err, expectedPorts, cfg.ExposedPorts)
}
@ -79,7 +80,7 @@ func TestInvalidProtocol(t *testing.T) {
Ports: ports,
},
}
err := exposeCmd.ExecuteCommand(cfg)
buildArgs := dockerfile.NewBuildArgs([]string{})
err := exposeCmd.ExecuteCommand(cfg, buildArgs)
testutil.CheckErrorAndDeepEqual(t, true, err, nil, nil)
}

16
pkg/commands/label.go
View File

@ -17,6 +17,7 @@ limitations under the License.
package commands
import (
"github.com/GoogleContainerTools/kaniko/pkg/dockerfile"
"strings"
"github.com/GoogleContainerTools/kaniko/pkg/util"
@ -29,24 +30,29 @@ type LabelCommand struct {
cmd *instructions.LabelCommand
}
func (r *LabelCommand) ExecuteCommand(config *v1.Config) error {
func (r *LabelCommand) ExecuteCommand(config *v1.Config, buildArgs *dockerfile.BuildArgs) error {
logrus.Info("cmd: LABEL")
return updateLabels(r.cmd.Labels, config)
return updateLabels(r.cmd.Labels, config, buildArgs)
}
func updateLabels(labels []instructions.KeyValuePair, config *v1.Config) error {
func updateLabels(labels []instructions.KeyValuePair, config *v1.Config, buildArgs *dockerfile.BuildArgs) error {
existingLabels := config.Labels
if existingLabels == nil {
existingLabels = make(map[string]string)
}
// Let's unescape values before setting the label
replacementEnvs := buildArgs.ReplacementEnvs(config.Env)
for index, kvp := range labels {
unescaped, err := util.ResolveEnvironmentReplacement(kvp.Value, []string{}, false)
key, err := util.ResolveEnvironmentReplacement(kvp.Key, replacementEnvs, false)
if err != nil {
return err
}
unescaped, err := util.ResolveEnvironmentReplacement(kvp.Value, replacementEnvs, false)
if err != nil {
return err
}
labels[index] = instructions.KeyValuePair{
Key: kvp.Key,
Key: key,
Value: unescaped,
}
}

27
pkg/commands/label_test.go
View File

@ -17,11 +17,11 @@ limitations under the License.
package commands
import (
"testing"
"github.com/GoogleContainerTools/kaniko/pkg/dockerfile"
"github.com/GoogleContainerTools/kaniko/testutil"
"github.com/docker/docker/builder/dockerfile/instructions"
"github.com/google/go-containerregistry/v1"
"testing"
)
func TestUpdateLabels(t *testing.T) {
@ -48,14 +48,25 @@ func TestUpdateLabels(t *testing.T) {
Key: "backslashes",
Value: "lots\\\\ of\\\\ words",
},
{
Key: "$label",
Value: "foo",
},
}
expectedLabels := map[string]string{
"foo": "override",
"bar": "baz",
"multiword": "lots of words",
"backslashes": "lots\\ of\\ words",
arguments := []string{
"label=build_arg_label",
}
updateLabels(labels, cfg)
buildArgs := dockerfile.NewBuildArgs(arguments)
buildArgs.AddArg("label", nil)
expectedLabels := map[string]string{
"foo": "override",
"bar": "baz",
"multiword": "lots of words",
"backslashes": "lots\\ of\\ words",
"build_arg_label": "foo",
}
updateLabels(labels, cfg, buildArgs)
testutil.CheckErrorAndDeepEqual(t, false, nil, expectedLabels, cfg.Labels)
}

6
pkg/commands/onbuild.go
View File

@ -17,6 +17,7 @@ limitations under the License.
package commands
import (
"github.com/GoogleContainerTools/kaniko/pkg/dockerfile"
"github.com/GoogleContainerTools/kaniko/pkg/util"
"github.com/docker/docker/builder/dockerfile/instructions"
"github.com/google/go-containerregistry/v1"
@ -28,10 +29,11 @@ type OnBuildCommand struct {
}
//ExecuteCommand adds the specified expression in Onbuild to the config
func (o *OnBuildCommand) ExecuteCommand(config *v1.Config) error {
func (o *OnBuildCommand) ExecuteCommand(config *v1.Config, buildArgs *dockerfile.BuildArgs) error {
logrus.Info("cmd: ONBUILD")
logrus.Infof("args: %s", o.cmd.Expression)
resolvedExpression, err := util.ResolveEnvironmentReplacement(o.cmd.Expression, config.Env, false)
replacementEnvs := buildArgs.ReplacementEnvs(config.Env)
resolvedExpression, err := util.ResolveEnvironmentReplacement(o.cmd.Expression, replacementEnvs, false)
if err != nil {
return err
}

5
pkg/commands/onbuild_test.go
View File

@ -17,6 +17,7 @@ limitations under the License.
package commands
import (
"github.com/GoogleContainerTools/kaniko/pkg/dockerfile"
"testing"
"github.com/GoogleContainerTools/kaniko/testutil"
@ -62,8 +63,8 @@ func TestExecuteOnbuild(t *testing.T) {
Expression: test.expression,
},
}
err := onbuildCmd.ExecuteCommand(cfg)
buildArgs := dockerfile.NewBuildArgs([]string{})
err := onbuildCmd.ExecuteCommand(cfg, buildArgs)
testutil.CheckErrorAndDeepEqual(t, false, err, test.expectedArray, cfg.OnBuild)
}

13
pkg/commands/run.go
View File

@ -17,22 +17,22 @@ limitations under the License.
package commands
import (
"github.com/GoogleContainerTools/kaniko/pkg/dockerfile"
"github.com/docker/docker/builder/dockerfile/instructions"
"github.com/google/go-containerregistry/v1"
"github.com/sirupsen/logrus"
"os"
"os/exec"
"strconv"
"strings"
"syscall"
"github.com/docker/docker/builder/dockerfile/instructions"
"github.com/google/go-containerregistry/v1"
"github.com/sirupsen/logrus"
)
type RunCommand struct {
cmd *instructions.RunCommand
}
func (r *RunCommand) ExecuteCommand(config *v1.Config) error {
func (r *RunCommand) ExecuteCommand(config *v1.Config, buildArgs *dockerfile.BuildArgs) error {
var newCommand []string
if r.cmd.PrependShell {
// This is the default shell on Linux
@ -54,7 +54,8 @@ func (r *RunCommand) ExecuteCommand(config *v1.Config) error {
cmd := exec.Command(newCommand[0], newCommand[1:]...)
cmd.Dir = config.WorkingDir
cmd.Stdout = os.Stdout
cmd.Env = config.Env
replacementEnvs := buildArgs.ReplacementEnvs(config.Env)
cmd.Env = replacementEnvs
// If specified, run the command as a specific user
if config.User != "" {

6
pkg/commands/shell.go
View File

@ -17,11 +17,11 @@ limitations under the License.
package commands
import (
"strings"
"github.com/GoogleContainerTools/kaniko/pkg/dockerfile"
"github.com/docker/docker/builder/dockerfile/instructions"
"github.com/google/go-containerregistry/v1"
"github.com/sirupsen/logrus"
"strings"
)
type ShellCommand struct {
@ -29,7 +29,7 @@ type ShellCommand struct {
}
// ExecuteCommand handles command processing similar to CMD and RUN,
func (s *ShellCommand) ExecuteCommand(config *v1.Config) error {
func (s *ShellCommand) ExecuteCommand(config *v1.Config, buildArgs *dockerfile.BuildArgs) error {
logrus.Info("cmd: SHELL")
var newShell []string

2
pkg/commands/shell_test.go
View File

@ -49,7 +49,7 @@ func TestShellExecuteCmd(t *testing.T) {
Shell: test.cmdLine,
},
}
err := cmd.ExecuteCommand(cfg)
err := cmd.ExecuteCommand(cfg, nil)
testutil.CheckErrorAndDeepEqual(t, false, err, test.expectedShell, cfg.Shell)
}
}

9
pkg/commands/stopsignal.go
View File

@ -17,13 +17,13 @@ limitations under the License.
package commands
import (
"strings"
"github.com/GoogleContainerTools/kaniko/pkg/dockerfile"
"github.com/GoogleContainerTools/kaniko/pkg/util"
"github.com/docker/docker/builder/dockerfile/instructions"
"github.com/docker/docker/pkg/signal"
"github.com/google/go-containerregistry/v1"
"github.com/sirupsen/logrus"
"strings"
)
type StopSignalCommand struct {
@ -31,11 +31,12 @@ type StopSignalCommand struct {
}
// ExecuteCommand handles command processing similar to CMD and RUN,
func (s *StopSignalCommand) ExecuteCommand(config *v1.Config) error {
func (s *StopSignalCommand) ExecuteCommand(config *v1.Config, buildArgs *dockerfile.BuildArgs) error {
logrus.Info("cmd: STOPSIGNAL")
// resolve possible environment variables
resolvedEnvs, err := util.ResolveEnvironmentReplacementList([]string{s.cmd.Signal}, config.Env, false)
replacementEnvs := buildArgs.ReplacementEnvs(config.Env)
resolvedEnvs, err := util.ResolveEnvironmentReplacementList([]string{s.cmd.Signal}, replacementEnvs, false)
if err != nil {
return err
}

7
pkg/commands/stopsignal_test.go
View File

@ -16,11 +16,11 @@ limitations under the License.
package commands
import (
"testing"
"github.com/GoogleContainerTools/kaniko/pkg/dockerfile"
"github.com/GoogleContainerTools/kaniko/testutil"
"github.com/docker/docker/builder/dockerfile/instructions"
"github.com/google/go-containerregistry/v1"
"testing"
)
var stopsignalTests = []struct {
@ -54,7 +54,8 @@ func TestStopsignalExecuteCmd(t *testing.T) {
Signal: test.signal,
},
}
err := cmd.ExecuteCommand(cfg)
b := dockerfile.NewBuildArgs([]string{})
err := cmd.ExecuteCommand(cfg, b)
testutil.CheckErrorAndDeepEqual(t, false, err, test.expectedSignal, cfg.StopSignal)
}
}

13
pkg/commands/user.go
View File

@ -17,30 +17,31 @@ limitations under the License.
package commands
import (
"os/user"
"strings"
"github.com/GoogleContainerTools/kaniko/pkg/dockerfile"
"github.com/GoogleContainerTools/kaniko/pkg/util"
"github.com/docker/docker/builder/dockerfile/instructions"
"github.com/google/go-containerregistry/v1"
"github.com/sirupsen/logrus"
"os/user"
"strings"
)
type UserCommand struct {
cmd *instructions.UserCommand
}
func (r *UserCommand) ExecuteCommand(config *v1.Config) error {
func (r *UserCommand) ExecuteCommand(config *v1.Config, buildArgs *dockerfile.BuildArgs) error {
logrus.Info("cmd: USER")
u := r.cmd.User
userAndGroup := strings.Split(u, ":")
userStr, err := util.ResolveEnvironmentReplacement(userAndGroup[0], config.Env, false)
replacementEnvs := buildArgs.ReplacementEnvs(config.Env)
userStr, err := util.ResolveEnvironmentReplacement(userAndGroup[0], replacementEnvs, false)
if err != nil {
return err
}
var groupStr string
if len(userAndGroup) > 1 {
groupStr, err = util.ResolveEnvironmentReplacement(userAndGroup[1], config.Env, false)
groupStr, err = util.ResolveEnvironmentReplacement(userAndGroup[1], replacementEnvs, false)
if err != nil {
return err
}

4
pkg/commands/user_test.go
View File

@ -16,6 +16,7 @@ limitations under the License.
package commands
import (
"github.com/GoogleContainerTools/kaniko/pkg/dockerfile"
"testing"
"github.com/GoogleContainerTools/kaniko/testutil"
@ -93,7 +94,8 @@ func TestUpdateUser(t *testing.T) {
User: test.user,
},
}
err := cmd.ExecuteCommand(cfg)
buildArgs := dockerfile.NewBuildArgs([]string{})
err := cmd.ExecuteCommand(cfg, buildArgs)
testutil.CheckErrorAndDeepEqual(t, test.shouldError, err, test.expectedUid, cfg.User)
}
}

6
pkg/commands/volume.go
View File

@ -17,6 +17,7 @@ limitations under the License.
package commands
import (
"github.com/GoogleContainerTools/kaniko/pkg/dockerfile"
"os"
"strings"
@ -31,10 +32,11 @@ type VolumeCommand struct {
snapshotFiles []string
}
func (v *VolumeCommand) ExecuteCommand(config *v1.Config) error {
func (v *VolumeCommand) ExecuteCommand(config *v1.Config, buildArgs *dockerfile.BuildArgs) error {
logrus.Info("cmd: VOLUME")
volumes := v.cmd.Volumes
resolvedVolumes, err := util.ResolveEnvironmentReplacementList(volumes, config.Env, true)
replacementEnvs := buildArgs.ReplacementEnvs(config.Env)
resolvedVolumes, err := util.ResolveEnvironmentReplacementList(volumes, replacementEnvs, true)
if err != nil {
return err
}

5
pkg/commands/volume_test.go
View File

@ -16,6 +16,7 @@ limitations under the License.
package commands
import (
"github.com/GoogleContainerTools/kaniko/pkg/dockerfile"
"testing"
"github.com/GoogleContainerTools/kaniko/testutil"
@ -49,7 +50,7 @@ func TestUpdateVolume(t *testing.T) {
"/var/lib": {},
"/etc": {},
}
err := volumeCmd.ExecuteCommand(cfg)
buildArgs := dockerfile.NewBuildArgs([]string{})
err := volumeCmd.ExecuteCommand(cfg, buildArgs)
testutil.CheckErrorAndDeepEqual(t, false, err, expectedVolumes, cfg.Volumes)
}

6
pkg/commands/workdir.go
View File

@ -17,6 +17,7 @@ limitations under the License.
package commands
import (
"github.com/GoogleContainerTools/kaniko/pkg/dockerfile"
"os"
"path/filepath"
@ -31,10 +32,11 @@ type WorkdirCommand struct {
snapshotFiles []string
}
func (w *WorkdirCommand) ExecuteCommand(config *v1.Config) error {
func (w *WorkdirCommand) ExecuteCommand(config *v1.Config, buildArgs *dockerfile.BuildArgs) error {
logrus.Info("cmd: workdir")
workdirPath := w.cmd.Path
resolvedWorkingDir, err := util.ResolveEnvironmentReplacement(workdirPath, config.Env, true)
replacementEnvs := buildArgs.ReplacementEnvs(config.Env)
resolvedWorkingDir, err := util.ResolveEnvironmentReplacement(workdirPath, replacementEnvs, true)
if err != nil {
return err
}

4
pkg/commands/workdir_test.go
View File

@ -16,6 +16,7 @@ limitations under the License.
package commands
import (
"github.com/GoogleContainerTools/kaniko/pkg/dockerfile"
"testing"
"github.com/GoogleContainerTools/kaniko/testutil"
@ -78,7 +79,8 @@ func TestWorkdirCommand(t *testing.T) {
},
snapshotFiles: []string{},
}
cmd.ExecuteCommand(cfg)
buildArgs := dockerfile.NewBuildArgs([]string{})
cmd.ExecuteCommand(cfg, buildArgs)
testutil.CheckErrorAndDeepEqual(t, false, nil, test.expectedPath, cfg.WorkingDir)
}
}

47
pkg/dockerfile/buildargs.go Normal file
View File

@ -0,0 +1,47 @@
/*
Copyright 2018 Google LLC
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package dockerfile
import (
d "github.com/docker/docker/builder/dockerfile"
"strings"
)
type BuildArgs struct {
d.BuildArgs
}
func NewBuildArgs(args []string) *BuildArgs {
argsFromOptions := make(map[string]*string)
for _, a := range args {
s := strings.Split(a, "=")
if len(s) == 1 {
argsFromOptions[s[0]] = nil
} else {
argsFromOptions[s[0]] = &s[1]
}
}
return &BuildArgs{
*d.NewBuildArgs(argsFromOptions),
}
}
// ReplacementEnvs returns a list of filtered environment variables
func (b *BuildArgs) ReplacementEnvs(envs []string) []string {
filtered := b.FilterAllowed(envs)
return append(envs, filtered...)
}

7
pkg/dockerfile/dockerfile.go
View File

@ -18,7 +18,6 @@ package dockerfile
import (
"bytes"
"github.com/GoogleContainerTools/kaniko/pkg/commands"
"github.com/GoogleContainerTools/kaniko/pkg/constants"
"github.com/GoogleContainerTools/kaniko/pkg/util"
"github.com/docker/docker/builder/dockerfile/instructions"
@ -88,7 +87,7 @@ func ParseCommands(cmdArray []string) ([]instructions.Command, error) {
}
// Dependencies returns a list of files in this stage that will be needed in later stages
func Dependencies(index int, stages []instructions.Stage) ([]string, error) {
func Dependencies(index int, stages []instructions.Stage, buildArgs *BuildArgs) ([]string, error) {
var dependencies []string
for stageIndex, stage := range stages {
if stageIndex <= index {
@ -120,8 +119,8 @@ func Dependencies(index int, stages []instructions.Stage) ([]string, error) {
for _, cmd := range stage.Commands {
switch c := cmd.(type) {
case *instructions.EnvCommand:
envCommand := commands.NewEnvCommand(c)
if err := envCommand.ExecuteCommand(&imageConfig.Config); err != nil {
replacementEnvs := buildArgs.ReplacementEnvs(imageConfig.Config.Env)
if err := util.UpdateConfigEnv(c.Env, &imageConfig.Config, replacementEnvs); err != nil {
return nil, err
}
case *instructions.CopyCommand:

15
pkg/executor/executor.go
View File

@ -1,12 +1,9 @@
/*
Copyright 2018 Google LLC
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@ -45,7 +42,7 @@ import (
"io/ioutil"
)
func DoBuild(dockerfilePath, srcContext, snapshotMode string) (name.Reference, v1.Image, error) {
func DoBuild(dockerfilePath, srcContext, snapshotMode string, args []string) (name.Reference, v1.Image, error) {
// Parse dockerfile and unpack base image to root
d, err := ioutil.ReadFile(dockerfilePath)
if err != nil {
@ -103,7 +100,7 @@ func DoBuild(dockerfilePath, srcContext, snapshotMode string) (name.Reference, v
if err := resolveOnBuild(&stage, &imageConfig.Config); err != nil {
return nil, nil, err
}
buildArgs := dockerfile.NewBuildArgs(args)
for _, cmd := range stage.Commands {
dockerCommand, err := commands.GetCommand(cmd, srcContext)
if err != nil {
@ -112,7 +109,7 @@ func DoBuild(dockerfilePath, srcContext, snapshotMode string) (name.Reference, v
if dockerCommand == nil {
continue
}
if err := dockerCommand.ExecuteCommand(&imageConfig.Config); err != nil {
if err := dockerCommand.ExecuteCommand(&imageConfig.Config, buildArgs); err != nil {
return nil, nil, err
}
if !finalStage {
@ -157,7 +154,7 @@ func DoBuild(dockerfilePath, srcContext, snapshotMode string) (name.Reference, v
}
return ref, sourceImage, nil
}
if err := saveStageDependencies(index, stages); err != nil {
if err := saveStageDependencies(index, stages, buildArgs); err != nil {
return nil, nil, err
}
// Delete the filesystem
@ -184,9 +181,9 @@ func DoPush(ref name.Reference, image v1.Image, destination string) error {
}
return remote.Write(destRef, image, pushAuth, http.DefaultTransport, wo)
}
func saveStageDependencies(index int, stages []instructions.Stage) error {
func saveStageDependencies(index int, stages []instructions.Stage, buildArgs *dockerfile.BuildArgs) error {
// First, get the files in this stage later stages will need
dependencies, err := dockerfile.Dependencies(index, stages)
dependencies, err := dockerfile.Dependencies(index, stages, buildArgs)
logrus.Infof("saving dependencies %s", dependencies)
if err != nil {
return err

51
pkg/util/command_util.go
View File

@ -20,6 +20,7 @@ import (
"github.com/docker/docker/builder/dockerfile/instructions"
"github.com/docker/docker/builder/dockerfile/parser"
"github.com/docker/docker/builder/dockerfile/shell"
"github.com/google/go-containerregistry/v1"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
"net/http"
@ -222,3 +223,53 @@ func IsSrcRemoteFileURL(rawurl string) bool {
}
return true
}
func UpdateConfigEnv(newEnvs []instructions.KeyValuePair, config *v1.Config, replacementEnvs []string) error {
for index, pair := range newEnvs {
expandedKey, err := ResolveEnvironmentReplacement(pair.Key, replacementEnvs, false)
if err != nil {
return err
}
expandedValue, err := ResolveEnvironmentReplacement(pair.Value, replacementEnvs, false)
if err != nil {
return err
}
newEnvs[index] = instructions.KeyValuePair{
Key: expandedKey,
Value: expandedValue,
}
}
// First, convert config.Env array to []instruction.KeyValuePair
var kvps []instructions.KeyValuePair
for _, env := range config.Env {
entry := strings.Split(env, "=")
kvps = append(kvps, instructions.KeyValuePair{
Key: entry[0],
Value: entry[1],
})
}
// Iterate through new environment variables, and replace existing keys
// We can't use a map because we need to preserve the order of the environment variables
Loop:
for _, newEnv := range newEnvs {
for index, kvp := range kvps {
// If key exists, replace the KeyValuePair...
if kvp.Key == newEnv.Key {
logrus.Debugf("Replacing environment variable %v with %v in config", kvp, newEnv)
kvps[index] = newEnv
continue Loop
}
}
// ... Else, append it as a new env variable
kvps = append(kvps, newEnv)
}
// Convert back to array and set in config
envArray := []string{}
for _, kvp := range kvps {
entry := kvp.Key + "=" + kvp.Value
envArray = append(envArray, entry)
}
config.Env = envArray
return nil
}

6
pkg/util/fs_util.go
View File

@ -94,6 +94,12 @@ func GetFSFromImage(img v1.Image) error {
logrus.Infof("Not adding %s because it is whitelisted", path)
continue
}
if hdr.Typeflag == tar.TypeSymlink {
if checkWhitelist(hdr.Linkname, whitelist) {
logrus.Debugf("skipping symlink from %s to %s because %s is whitelisted", hdr.Linkname, path, hdr.Linkname)
continue
}
}
fs[path] = struct{}{}
if err := extractFile("/", hdr, tr); err != nil {

58
vendor/cloud.google.com/go/storage/bucket.go generated vendored
View File

@ -269,6 +269,9 @@ type BucketAttrs struct {
// The bucket's Cross-Origin Resource Sharing (CORS) configuration.
CORS []CORS
// The encryption configuration used by default for newly inserted objects.
Encryption *BucketEncryption
}
// Lifecycle is the lifecycle configuration for objects in the bucket.
@ -406,6 +409,7 @@ func newBucket(b *raw.Bucket) (*BucketAttrs, error) {
Lifecycle: toLifecycle(b.Lifecycle),
RetentionPolicy: rp,
CORS: toCORS(b.Cors),
Encryption: toBucketEncryption(b.Encryption),
}
acl := make([]ACLRule, len(b.Acl))
for i, rule := range b.Acl {
@ -470,10 +474,11 @@ func (b *BucketAttrs) toRawBucket() *raw.Bucket {
Lifecycle: toRawLifecycle(b.Lifecycle),
RetentionPolicy: b.RetentionPolicy.toRawRetentionPolicy(),
Cors: toRawCORS(b.CORS),
Encryption: b.Encryption.toRawBucketEncryption(),
}
}
// The bucket's Cross-Origin Resource Sharing (CORS) configuration.
// CORS is the bucket's Cross-Origin Resource Sharing (CORS) configuration.
type CORS struct {
// MaxAge is the value to return in the Access-Control-Max-Age
// header used in preflight responses.
@ -495,14 +500,23 @@ type CORS struct {
ResponseHeaders []string
}
// BucketEncryption is a bucket's encryption configuration.
type BucketEncryption struct {
// A Cloud KMS key name, in the form
// projects/P/locations/L/keyRings/R/cryptoKeys/K, that will be used to encrypt
// objects inserted into this bucket, if no encryption method is specified.
// The key's location must be the same as the bucket's.
DefaultKMSKeyName string
}
type BucketAttrsToUpdate struct {
// VersioningEnabled, if set, updates whether the bucket uses versioning.
// If set, updates whether the bucket uses versioning.
VersioningEnabled optional.Bool
// RequesterPays, if set, updates whether the bucket is a Requester Pays bucket.
// If set, updates whether the bucket is a Requester Pays bucket.
RequesterPays optional.Bool
// RetentionPolicy, if set, updates the retention policy of the bucket. Using
// If set, updates the retention policy of the bucket. Using
// RetentionPolicy.RetentionPeriod = 0 will delete the existing policy.
//
// This feature is in private alpha release. It is not currently available to
@ -510,11 +524,15 @@ type BucketAttrsToUpdate struct {
// subject to any SLA or deprecation policy.
RetentionPolicy *RetentionPolicy
// CORS, if set, replaces the CORS configuration with a new configuration.
// When an empty slice is provided, all CORS policies are removed; when nil
// is provided, the value is ignored in the update.
// If set, replaces the CORS configuration with a new configuration.
// An empty (rather than nil) slice causes all CORS policies to be removed.
CORS []CORS
// If set, replaces the encryption configuration of the bucket. Using
// BucketEncryption.DefaultKMSKeyName = "" will delete the existing
// configuration.
Encryption *BucketEncryption
setLabels map[string]string
deleteLabels map[string]bool
}
@ -563,6 +581,14 @@ func (ua *BucketAttrsToUpdate) toRawBucket() *raw.Bucket {
ForceSendFields: []string{"RequesterPays"},
}
}
if ua.Encryption != nil {
if ua.Encryption.DefaultKMSKeyName == "" {
rb.NullFields = append(rb.NullFields, "Encryption")
rb.Encryption = nil
} else {
rb.Encryption = ua.Encryption.toRawBucketEncryption()
}
}
if ua.setLabels != nil || ua.deleteLabels != nil {
rb.Labels = map[string]string{}
for k, v := range ua.setLabels {
@ -788,6 +814,22 @@ func toLifecycle(rl *raw.BucketLifecycle) Lifecycle {
return l
}
func (e *BucketEncryption) toRawBucketEncryption() *raw.BucketEncryption {
if e == nil {
return nil
}
return &raw.BucketEncryption{
DefaultKmsKeyName: e.DefaultKMSKeyName,
}
}
func toBucketEncryption(e *raw.BucketEncryption) *BucketEncryption {
if e == nil {
return nil
}
return &BucketEncryption{DefaultKMSKeyName: e.DefaultKmsKeyName}
}
// Objects returns an iterator over the objects in the bucket that match the Query q.
// If q is nil, no filtering is done.
func (b *BucketHandle) Objects(ctx context.Context, q *Query) *ObjectIterator {
@ -869,8 +911,6 @@ func (it *ObjectIterator) fetch(pageSize int, pageToken string) (string, error)
return resp.NextPageToken, nil
}
// TODO(jbd): Add storage.buckets.update.
// Buckets returns an iterator over the buckets in the project. You may
// optionally set the iterator's Prefix field to restrict the list to buckets
// whose names begin with the prefix. By default, all buckets in the project

15
vendor/cloud.google.com/go/storage/copy.go generated vendored
View File

@ -60,6 +60,15 @@ type Copier struct {
// ProgressFunc should return quickly without blocking.
ProgressFunc func(copiedBytes, totalBytes uint64)
// The Cloud KMS key, in the form projects/P/locations/L/keyRings/R/cryptoKeys/K,
// that will be used to encrypt the object. Overrides the object's KMSKeyName, if
// any.
//
// Providing both a DestinationKMSKeyName and a customer-supplied encryption key
// (via ObjectHandle.Key) on the destination object will result in an error when
// Run is called.
DestinationKMSKeyName string
dst, src *ObjectHandle
}
@ -74,6 +83,9 @@ func (c *Copier) Run(ctx context.Context) (attrs *ObjectAttrs, err error) {
if err := c.dst.validate(); err != nil {
return nil, err
}
if c.DestinationKMSKeyName != "" && c.dst.encryptionKey != nil {
return nil, errors.New("storage: cannot use DestinationKMSKeyName with a customer-supplied encryption key")
}
// Convert destination attributes to raw form, omitting the bucket.
// If the bucket is included but name or content-type aren't, the service
// returns a 400 with "Required" as the only message. Omitting the bucket
@ -100,6 +112,9 @@ func (c *Copier) callRewrite(ctx context.Context, rawObj *raw.Object) (*raw.Rewr
if c.RewriteToken != "" {
call.RewriteToken(c.RewriteToken)
}
if c.DestinationKMSKeyName != "" {
call.DestinationKmsKeyName(c.DestinationKMSKeyName)
}
if err := applyConds("Copy destination", c.dst.gen, c.dst.conds, call); err != nil {
return nil, err
}

8
vendor/cloud.google.com/go/storage/doc.go generated vendored
View File

@ -19,6 +19,9 @@ Google Cloud Storage stores data in named objects, which are grouped into bucket
More information about Google Cloud Storage is available at
https://cloud.google.com/storage/docs.
See https://godoc.org/cloud.google.com/go for authentication, timeouts,
connection pooling and similar aspects of this package.
All of the methods of this package use exponential backoff to retry calls
that fail with certain errors, as described in
https://cloud.google.com/storage/docs/exponential-backoff.
@ -158,10 +161,5 @@ SignedURL for details.
// TODO: Handle error.
}
fmt.Println(url)
Authentication
See examples of authorization and authentication at
https://godoc.org/cloud.google.com/go#pkg-examples.
*/
package storage // import "cloud.google.com/go/storage"

121
vendor/cloud.google.com/go/storage/reader.go generated vendored
View File

@ -22,6 +22,7 @@ import (
"io/ioutil"
"net/http"
"net/url"
"reflect"
"strconv"
"strings"
@ -74,11 +75,6 @@ func (o *ObjectHandle) NewRangeReader(ctx context.Context, offset, length int64)
return nil, err
}
req = withContext(req, ctx)
if length < 0 && offset > 0 {
req.Header.Set("Range", fmt.Sprintf("bytes=%d-", offset))
} else if length > 0 {
req.Header.Set("Range", fmt.Sprintf("bytes=%d-%d", offset, offset+length-1))
}
if o.userProject != "" {
req.Header.Set("X-Goog-User-Project", o.userProject)
}
@ -88,39 +84,57 @@ func (o *ObjectHandle) NewRangeReader(ctx context.Context, offset, length int64)
if err := setEncryptionHeaders(req.Header, o.encryptionKey, false); err != nil {
return nil, err
}
var res *http.Response
err = runWithRetry(ctx, func() error {
res, err = o.c.hc.Do(req)
if err != nil {
return err
// Define a function that initiates a Read with offset and length, assuming we
// have already read seen bytes.
reopen := func(seen int64) (*http.Response, error) {
start := offset + seen
if length < 0 && start > 0 {
req.Header.Set("Range", fmt.Sprintf("bytes=%d-", start))
} else if length > 0 {
// The end character isn't affected by how many bytes we've seen.
req.Header.Set("Range", fmt.Sprintf("bytes=%d-%d", start, offset+length-1))
}
if res.StatusCode == http.StatusNotFound {
res.Body.Close()
return ErrObjectNotExist
}
if res.StatusCode < 200 || res.StatusCode > 299 {
body, _ := ioutil.ReadAll(res.Body)
res.Body.Close()
return &googleapi.Error{
Code: res.StatusCode,
Header: res.Header,
Body: string(body),
var res *http.Response
err = runWithRetry(ctx, func() error {
res, err = o.c.hc.Do(req)
if err != nil {
return err
}
if res.StatusCode == http.StatusNotFound {
res.Body.Close()
return ErrObjectNotExist
}
if res.StatusCode < 200 || res.StatusCode > 299 {
body, _ := ioutil.ReadAll(res.Body)
res.Body.Close()
return &googleapi.Error{
Code: res.StatusCode,
Header: res.Header,
Body: string(body),
}
}
if start > 0 && length != 0 && res.StatusCode != http.StatusPartialContent {
res.Body.Close()
return errors.New("storage: partial request not satisfied")
}
return nil
})
if err != nil {
return nil, err
}
if offset > 0 && length != 0 && res.StatusCode != http.StatusPartialContent {
res.Body.Close()
return errors.New("storage: partial request not satisfied")
}
return nil
})
return res, nil
}
res, err := reopen(0)
if err != nil {
return nil, err
}
var size int64 // total size of object, even if a range was requested.
if res.StatusCode == http.StatusPartialContent {
cr := strings.TrimSpace(res.Header.Get("Content-Range"))
if !strings.HasPrefix(cr, "bytes ") || !strings.Contains(cr, "/") {
return nil, fmt.Errorf("storage: invalid Content-Range %q", cr)
}
size, err = strconv.ParseInt(cr[strings.LastIndex(cr, "/")+1:], 10, 64)
@ -155,6 +169,7 @@ func (o *ObjectHandle) NewRangeReader(ctx context.Context, offset, length int64)
cacheControl: res.Header.Get("Cache-Control"),
wantCRC: crc,
checkCRC: checkCRC,
reopen: reopen,
}, nil
}
@ -180,15 +195,16 @@ var emptyBody = ioutil.NopCloser(strings.NewReader(""))
// the stored CRC, returning an error from Read if there is a mismatch. This integrity check
// is skipped if transcoding occurs. See https://cloud.google.com/storage/docs/transcoding.
type Reader struct {
body io.ReadCloser
remain, size int64
contentType string
contentEncoding string
cacheControl string
checkCRC bool // should we check the CRC?
wantCRC uint32 // the CRC32c value the server sent in the header
gotCRC uint32 // running crc
checkedCRC bool // did we check the CRC? (For tests.)
body io.ReadCloser
seen, remain, size int64
contentType string
contentEncoding string
cacheControl string
checkCRC bool // should we check the CRC?
wantCRC uint32 // the CRC32c value the server sent in the header
gotCRC uint32 // running crc
checkedCRC bool // did we check the CRC? (For tests.)
reopen func(seen int64) (*http.Response, error)
}
// Close closes the Reader. It must be called when done reading.
@ -197,7 +213,7 @@ func (r *Reader) Close() error {
}
func (r *Reader) Read(p []byte) (int, error) {
n, err := r.body.Read(p)
n, err := r.readWithRetry(p)
if r.remain != -1 {
r.remain -= int64(n)
}
@ -217,6 +233,35 @@ func (r *Reader) Read(p []byte) (int, error) {
return n, err
}
func (r *Reader) readWithRetry(p []byte) (int, error) {
n := 0
for len(p[n:]) > 0 {
m, err := r.body.Read(p[n:])
n += m
r.seen += int64(m)
if !shouldRetryRead(err) {
return n, err
}
// Read failed, but we will try again. Send a ranged read request that takes
// into account the number of bytes we've already seen.
res, err := r.reopen(r.seen)
if err != nil {
// reopen already retries
return n, err
}
r.body.Close()
r.body = res.Body
}
return n, nil
}
func shouldRetryRead(err error) bool {
if err == nil {
return false
}
return strings.HasSuffix(err.Error(), "INTERNAL_ERROR") && strings.Contains(reflect.TypeOf(err).String(), "http2")
}
// Size returns the size of the object in bytes.
// The returned value is always the same and is not affected by
// calls to Read or Close.

9
vendor/cloud.google.com/go/storage/storage.go generated vendored
View File

@ -722,6 +722,14 @@ type ObjectAttrs struct {
// encryption in Google Cloud Storage.
CustomerKeySHA256 string
// Cloud KMS key name, in the form
// projects/P/locations/L/keyRings/R/cryptoKeys/K, used to encrypt this object,
// if the object is encrypted by such a key.
//
// Providing both a KMSKeyName and a customer-supplied encryption key (via
// ObjectHandle.Key) will result in an error when writing an object.
KMSKeyName string
// Prefix is set only for ObjectAttrs which represent synthetic "directory
// entries" when iterating over buckets using Query.Delimiter. See
// ObjectIterator.Next. When set, no other fields in ObjectAttrs will be
@ -779,6 +787,7 @@ func newObject(o *raw.Object) *ObjectAttrs {
Metageneration: o.Metageneration,
StorageClass: o.StorageClass,
CustomerKeySHA256: sha256,
KMSKeyName: o.KmsKeyName,
Created: convertTime(o.TimeCreated),
Deleted: convertTime(o.TimeDeleted),
Updated: convertTime(o.Updated),

6
vendor/cloud.google.com/go/storage/writer.go generated vendored
View File

@ -88,6 +88,9 @@ func (w *Writer) open() error {
if !utf8.ValidString(attrs.Name) {
return fmt.Errorf("storage: object name %q is not valid UTF-8", attrs.Name)
}
if attrs.KMSKeyName != "" && w.o.encryptionKey != nil {
return errors.New("storage: cannot use KMSKeyName with a customer-supplied encryption key")
}
pr, pw := io.Pipe()
w.pw = pw
w.opened = true
@ -119,6 +122,9 @@ func (w *Writer) open() error {
if w.ProgressFunc != nil {
call.ProgressUpdater(func(n, _ int64) { w.ProgressFunc(n) })
}
if attrs.KMSKeyName != "" {
call.KmsKeyName(attrs.KMSKeyName)
}
if err := setEncryptionHeaders(call.Header(), w.o.encryptionKey, false); err != nil {
w.mu.Lock()
w.err = err

21
vendor/github.com/Azure/go-ansiterm/LICENSE generated vendored Normal file
View File

@ -0,0 +1,21 @@
The MIT License (MIT)
Copyright (c) 2015 Microsoft Corporation
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

188
vendor/github.com/Azure/go-ansiterm/constants.go generated vendored Normal file
View File

@ -0,0 +1,188 @@
package ansiterm
const LogEnv = "DEBUG_TERMINAL"
// ANSI constants
// References:
// -- http://www.ecma-international.org/publications/standards/Ecma-048.htm
// -- http://man7.org/linux/man-pages/man4/console_codes.4.html
// -- http://manpages.ubuntu.com/manpages/intrepid/man4/console_codes.4.html
// -- http://en.wikipedia.org/wiki/ANSI_escape_code
// -- http://vt100.net/emu/dec_ansi_parser
// -- http://vt100.net/emu/vt500_parser.svg
// -- http://invisible-island.net/xterm/ctlseqs/ctlseqs.html
// -- http://www.inwap.com/pdp10/ansicode.txt
const (
// ECMA-48 Set Graphics Rendition
// Note:
// -- Constants leading with an underscore (e.g., _ANSI_xxx) are unsupported or reserved
// -- Fonts could possibly be supported via SetCurrentConsoleFontEx
// -- Windows does not expose the per-window cursor (i.e., caret) blink times
ANSI_SGR_RESET = 0
ANSI_SGR_BOLD = 1
ANSI_SGR_DIM = 2
_ANSI_SGR_ITALIC = 3
ANSI_SGR_UNDERLINE = 4
_ANSI_SGR_BLINKSLOW = 5
_ANSI_SGR_BLINKFAST = 6
ANSI_SGR_REVERSE = 7
_ANSI_SGR_INVISIBLE = 8
_ANSI_SGR_LINETHROUGH = 9
_ANSI_SGR_FONT_00 = 10
_ANSI_SGR_FONT_01 = 11
_ANSI_SGR_FONT_02 = 12
_ANSI_SGR_FONT_03 = 13
_ANSI_SGR_FONT_04 = 14
_ANSI_SGR_FONT_05 = 15
_ANSI_SGR_FONT_06 = 16
_ANSI_SGR_FONT_07 = 17
_ANSI_SGR_FONT_08 = 18
_ANSI_SGR_FONT_09 = 19
_ANSI_SGR_FONT_10 = 20
_ANSI_SGR_DOUBLEUNDERLINE = 21
ANSI_SGR_BOLD_DIM_OFF = 22
_ANSI_SGR_ITALIC_OFF = 23
ANSI_SGR_UNDERLINE_OFF = 24
_ANSI_SGR_BLINK_OFF = 25
_ANSI_SGR_RESERVED_00 = 26
ANSI_SGR_REVERSE_OFF = 27
_ANSI_SGR_INVISIBLE_OFF = 28
_ANSI_SGR_LINETHROUGH_OFF = 29
ANSI_SGR_FOREGROUND_BLACK = 30
ANSI_SGR_FOREGROUND_RED = 31
ANSI_SGR_FOREGROUND_GREEN = 32
ANSI_SGR_FOREGROUND_YELLOW = 33
ANSI_SGR_FOREGROUND_BLUE = 34
ANSI_SGR_FOREGROUND_MAGENTA = 35
ANSI_SGR_FOREGROUND_CYAN = 36
ANSI_SGR_FOREGROUND_WHITE = 37
_ANSI_SGR_RESERVED_01 = 38
ANSI_SGR_FOREGROUND_DEFAULT = 39
ANSI_SGR_BACKGROUND_BLACK = 40
ANSI_SGR_BACKGROUND_RED = 41
ANSI_SGR_BACKGROUND_GREEN = 42
ANSI_SGR_BACKGROUND_YELLOW = 43
ANSI_SGR_BACKGROUND_BLUE = 44
ANSI_SGR_BACKGROUND_MAGENTA = 45
ANSI_SGR_BACKGROUND_CYAN = 46
ANSI_SGR_BACKGROUND_WHITE = 47
_ANSI_SGR_RESERVED_02 = 48
ANSI_SGR_BACKGROUND_DEFAULT = 49
// 50 - 65: Unsupported
ANSI_MAX_CMD_LENGTH = 4096
MAX_INPUT_EVENTS = 128
DEFAULT_WIDTH = 80
DEFAULT_HEIGHT = 24
ANSI_BEL = 0x07
ANSI_BACKSPACE = 0x08
ANSI_TAB = 0x09
ANSI_LINE_FEED = 0x0A
ANSI_VERTICAL_TAB = 0x0B
ANSI_FORM_FEED = 0x0C
ANSI_CARRIAGE_RETURN = 0x0D
ANSI_ESCAPE_PRIMARY = 0x1B
ANSI_ESCAPE_SECONDARY = 0x5B
ANSI_OSC_STRING_ENTRY = 0x5D
ANSI_COMMAND_FIRST = 0x40
ANSI_COMMAND_LAST = 0x7E
DCS_ENTRY = 0x90
CSI_ENTRY = 0x9B
OSC_STRING = 0x9D
ANSI_PARAMETER_SEP = ";"
ANSI_CMD_G0 = '('
ANSI_CMD_G1 = ')'
ANSI_CMD_G2 = '*'
ANSI_CMD_G3 = '+'
ANSI_CMD_DECPNM = '>'
ANSI_CMD_DECPAM = '='
ANSI_CMD_OSC = ']'
ANSI_CMD_STR_TERM = '\\'
KEY_CONTROL_PARAM_2 = ";2"
KEY_CONTROL_PARAM_3 = ";3"
KEY_CONTROL_PARAM_4 = ";4"
KEY_CONTROL_PARAM_5 = ";5"
KEY_CONTROL_PARAM_6 = ";6"
KEY_CONTROL_PARAM_7 = ";7"
KEY_CONTROL_PARAM_8 = ";8"
KEY_ESC_CSI = "\x1B["
KEY_ESC_N = "\x1BN"
KEY_ESC_O = "\x1BO"
FILL_CHARACTER = ' '
)
func getByteRange(start byte, end byte) []byte {
bytes := make([]byte, 0, 32)
for i := start; i <= end; i++ {
bytes = append(bytes, byte(i))
}
return bytes
}
var toGroundBytes = getToGroundBytes()
var executors = getExecuteBytes()
// SPACE 20+A0 hex Always and everywhere a blank space
// Intermediate 20-2F hex !"#$%&'()*+,-./
var intermeds = getByteRange(0x20, 0x2F)
// Parameters 30-3F hex 0123456789:;<=>?
// CSI Parameters 30-39, 3B hex 0123456789;
var csiParams = getByteRange(0x30, 0x3F)
var csiCollectables = append(getByteRange(0x30, 0x39), getByteRange(0x3B, 0x3F)...)
// Uppercase 40-5F hex @ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_
var upperCase = getByteRange(0x40, 0x5F)
// Lowercase 60-7E hex `abcdefghijlkmnopqrstuvwxyz{|}~
var lowerCase = getByteRange(0x60, 0x7E)
// Alphabetics 40-7E hex (all of upper and lower case)
var alphabetics = append(upperCase, lowerCase...)
var printables = getByteRange(0x20, 0x7F)
var escapeIntermediateToGroundBytes = getByteRange(0x30, 0x7E)
var escapeToGroundBytes = getEscapeToGroundBytes()
// See http://www.vt100.net/emu/vt500_parser.png for description of the complex
// byte ranges below
func getEscapeToGroundBytes() []byte {
escapeToGroundBytes := getByteRange(0x30, 0x4F)
escapeToGroundBytes = append(escapeToGroundBytes, getByteRange(0x51, 0x57)...)
escapeToGroundBytes = append(escapeToGroundBytes, 0x59)
escapeToGroundBytes = append(escapeToGroundBytes, 0x5A)
escapeToGroundBytes = append(escapeToGroundBytes, 0x5C)
escapeToGroundBytes = append(escapeToGroundBytes, getByteRange(0x60, 0x7E)...)
return escapeToGroundBytes
}
func getExecuteBytes() []byte {
executeBytes := getByteRange(0x00, 0x17)
executeBytes = append(executeBytes, 0x19)
executeBytes = append(executeBytes, getByteRange(0x1C, 0x1F)...)
return executeBytes
}
func getToGroundBytes() []byte {
groundBytes := []byte{0x18}
groundBytes = append(groundBytes, 0x1A)
groundBytes = append(groundBytes, getByteRange(0x80, 0x8F)...)
groundBytes = append(groundBytes, getByteRange(0x91, 0x97)...)
groundBytes = append(groundBytes, 0x99)
groundBytes = append(groundBytes, 0x9A)
groundBytes = append(groundBytes, 0x9C)
return groundBytes
}
// Delete 7F hex Always and everywhere ignored
// C1 Control 80-9F hex 32 additional control characters
// G1 Displayable A1-FE hex 94 additional displayable characters
// Special A0+FF hex Same as SPACE and DELETE

7
vendor/github.com/Azure/go-ansiterm/context.go generated vendored Normal file
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@ -0,0 +1,7 @@
package ansiterm
type ansiContext struct {
currentChar byte
paramBuffer []byte
interBuffer []byte
}

49
vendor/github.com/Azure/go-ansiterm/csi_entry_state.go generated vendored Normal file
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@ -0,0 +1,49 @@
package ansiterm
type csiEntryState struct {
baseState
}
func (csiState csiEntryState) Handle(b byte) (s state, e error) {
csiState.parser.logf("CsiEntry::Handle %#x", b)
nextState, err := csiState.baseState.Handle(b)
if nextState != nil || err != nil {
return nextState, err
}
switch {
case sliceContains(alphabetics, b):
return csiState.parser.ground, nil
case sliceContains(csiCollectables, b):
return csiState.parser.csiParam, nil
case sliceContains(executors, b):
return csiState, csiState.parser.execute()
}
return csiState, nil
}
func (csiState csiEntryState) Transition(s state) error {
csiState.parser.logf("CsiEntry::Transition %s --> %s", csiState.Name(), s.Name())
csiState.baseState.Transition(s)
switch s {
case csiState.parser.ground:
return csiState.parser.csiDispatch()
case csiState.parser.csiParam:
switch {
case sliceContains(csiParams, csiState.parser.context.currentChar):
csiState.parser.collectParam()
case sliceContains(intermeds, csiState.parser.context.currentChar):
csiState.parser.collectInter()
}
}
return nil
}
func (csiState csiEntryState) Enter() error {
csiState.parser.clear()
return nil
}

38
vendor/github.com/Azure/go-ansiterm/csi_param_state.go generated vendored Normal file
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@ -0,0 +1,38 @@
package ansiterm
type csiParamState struct {
baseState
}
func (csiState csiParamState) Handle(b byte) (s state, e error) {
csiState.parser.logf("CsiParam::Handle %#x", b)
nextState, err := csiState.baseState.Handle(b)
if nextState != nil || err != nil {
return nextState, err
}
switch {
case sliceContains(alphabetics, b):
return csiState.parser.ground, nil
case sliceContains(csiCollectables, b):
csiState.parser.collectParam()
return csiState, nil
case sliceContains(executors, b):
return csiState, csiState.parser.execute()
}
return csiState, nil
}
func (csiState csiParamState) Transition(s state) error {
csiState.parser.logf("CsiParam::Transition %s --> %s", csiState.Name(), s.Name())
csiState.baseState.Transition(s)
switch s {
case csiState.parser.ground:
return csiState.parser.csiDispatch()
}
return nil
}

36
vendor/github.com/Azure/go-ansiterm/escape_intermediate_state.go generated vendored Normal file
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@ -0,0 +1,36 @@
package ansiterm
type escapeIntermediateState struct {
baseState
}
func (escState escapeIntermediateState) Handle(b byte) (s state, e error) {
escState.parser.logf("escapeIntermediateState::Handle %#x", b)
nextState, err := escState.baseState.Handle(b)
if nextState != nil || err != nil {
return nextState, err
}
switch {
case sliceContains(intermeds, b):
return escState, escState.parser.collectInter()
case sliceContains(executors, b):
return escState, escState.parser.execute()
case sliceContains(escapeIntermediateToGroundBytes, b):
return escState.parser.ground, nil
}
return escState, nil
}
func (escState escapeIntermediateState) Transition(s state) error {
escState.parser.logf("escapeIntermediateState::Transition %s --> %s", escState.Name(), s.Name())
escState.baseState.Transition(s)
switch s {
case escState.parser.ground:
return escState.parser.escDispatch()
}
return nil
}

47
vendor/github.com/Azure/go-ansiterm/escape_state.go generated vendored Normal file
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@ -0,0 +1,47 @@
package ansiterm
type escapeState struct {
baseState
}
func (escState escapeState) Handle(b byte) (s state, e error) {
escState.parser.logf("escapeState::Handle %#x", b)
nextState, err := escState.baseState.Handle(b)
if nextState != nil || err != nil {
return nextState, err
}
switch {
case b == ANSI_ESCAPE_SECONDARY:
return escState.parser.csiEntry, nil
case b == ANSI_OSC_STRING_ENTRY:
return escState.parser.oscString, nil
case sliceContains(executors, b):
return escState, escState.parser.execute()
case sliceContains(escapeToGroundBytes, b):
return escState.parser.ground, nil
case sliceContains(intermeds, b):
return escState.parser.escapeIntermediate, nil
}
return escState, nil
}
func (escState escapeState) Transition(s state) error {
escState.parser.logf("Escape::Transition %s --> %s", escState.Name(), s.Name())
escState.baseState.Transition(s)
switch s {
case escState.parser.ground:
return escState.parser.escDispatch()
case escState.parser.escapeIntermediate:
return escState.parser.collectInter()
}
return nil
}
func (escState escapeState) Enter() error {
escState.parser.clear()
return nil
}

90
vendor/github.com/Azure/go-ansiterm/event_handler.go generated vendored Normal file
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@ -0,0 +1,90 @@
package ansiterm
type AnsiEventHandler interface {
// Print
Print(b byte) error
// Execute C0 commands
Execute(b byte) error
// CUrsor Up
CUU(int) error
// CUrsor Down
CUD(int) error
// CUrsor Forward
CUF(int) error
// CUrsor Backward
CUB(int) error
// Cursor to Next Line
CNL(int) error
// Cursor to Previous Line
CPL(int) error
// Cursor Horizontal position Absolute
CHA(int) error
// Vertical line Position Absolute
VPA(int) error
// CUrsor Position
CUP(int, int) error
// Horizontal and Vertical Position (depends on PUM)
HVP(int, int) error
// Text Cursor Enable Mode
DECTCEM(bool) error
// Origin Mode
DECOM(bool) error
// 132 Column Mode
DECCOLM(bool) error
// Erase in Display
ED(int) error
// Erase in Line
EL(int) error
// Insert Line
IL(int) error
// Delete Line
DL(int) error
// Insert Character
ICH(int) error
// Delete Character
DCH(int) error
// Set Graphics Rendition
SGR([]int) error
// Pan Down
SU(int) error
// Pan Up
SD(int) error
// Device Attributes
DA([]string) error
// Set Top and Bottom Margins
DECSTBM(int, int) error
// Index
IND() error
// Reverse Index
RI() error
// Flush updates from previous commands
Flush() error
}

24
vendor/github.com/Azure/go-ansiterm/ground_state.go generated vendored Normal file
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@ -0,0 +1,24 @@
package ansiterm
type groundState struct {
baseState
}
func (gs groundState) Handle(b byte) (s state, e error) {
gs.parser.context.currentChar = b
nextState, err := gs.baseState.Handle(b)
if nextState != nil || err != nil {
return nextState, err
}
switch {
case sliceContains(printables, b):
return gs, gs.parser.print()
case sliceContains(executors, b):
return gs, gs.parser.execute()
}
return gs, nil
}

31
vendor/github.com/Azure/go-ansiterm/osc_string_state.go generated vendored Normal file
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@ -0,0 +1,31 @@
package ansiterm
type oscStringState struct {
baseState
}
func (oscState oscStringState) Handle(b byte) (s state, e error) {
oscState.parser.logf("OscString::Handle %#x", b)
nextState, err := oscState.baseState.Handle(b)
if nextState != nil || err != nil {
return nextState, err
}
switch {
case isOscStringTerminator(b):
return oscState.parser.ground, nil
}
return oscState, nil
}
// See below for OSC string terminators for linux
// http://man7.org/linux/man-pages/man4/console_codes.4.html
func isOscStringTerminator(b byte) bool {
if b == ANSI_BEL || b == 0x5C {
return true
}
return false
}

151
vendor/github.com/Azure/go-ansiterm/parser.go generated vendored Normal file
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@ -0,0 +1,151 @@
package ansiterm
import (
"errors"
"log"
"os"
)
type AnsiParser struct {
currState state
eventHandler AnsiEventHandler
context *ansiContext
csiEntry state
csiParam state
dcsEntry state
escape state
escapeIntermediate state
error state
ground state
oscString state
stateMap []state
logf func(string, ...interface{})
}
type Option func(*AnsiParser)
func WithLogf(f func(string, ...interface{})) Option {
return func(ap *AnsiParser) {
ap.logf = f
}
}
func CreateParser(initialState string, evtHandler AnsiEventHandler, opts ...Option) *AnsiParser {
ap := &AnsiParser{
eventHandler: evtHandler,
context: &ansiContext{},
}
for _, o := range opts {
o(ap)
}
if isDebugEnv := os.Getenv(LogEnv); isDebugEnv == "1" {
logFile, _ := os.Create("ansiParser.log")
logger := log.New(logFile, "", log.LstdFlags)
if ap.logf != nil {
l := ap.logf
ap.logf = func(s string, v ...interface{}) {
l(s, v...)
logger.Printf(s, v...)
}
} else {
ap.logf = logger.Printf
}
}
if ap.logf == nil {
ap.logf = func(string, ...interface{}) {}
}
ap.csiEntry = csiEntryState{baseState{name: "CsiEntry", parser: ap}}
ap.csiParam = csiParamState{baseState{name: "CsiParam", parser: ap}}
ap.dcsEntry = dcsEntryState{baseState{name: "DcsEntry", parser: ap}}
ap.escape = escapeState{baseState{name: "Escape", parser: ap}}
ap.escapeIntermediate = escapeIntermediateState{baseState{name: "EscapeIntermediate", parser: ap}}
ap.error = errorState{baseState{name: "Error", parser: ap}}
ap.ground = groundState{baseState{name: "Ground", parser: ap}}
ap.oscString = oscStringState{baseState{name: "OscString", parser: ap}}
ap.stateMap = []state{
ap.csiEntry,
ap.csiParam,
ap.dcsEntry,
ap.escape,
ap.escapeIntermediate,
ap.error,
ap.ground,
ap.oscString,
}
ap.currState = getState(initialState, ap.stateMap)
ap.logf("CreateParser: parser %p", ap)
return ap
}
func getState(name string, states []state) state {
for _, el := range states {
if el.Name() == name {
return el
}
}
return nil
}
func (ap *AnsiParser) Parse(bytes []byte) (int, error) {
for i, b := range bytes {
if err := ap.handle(b); err != nil {
return i, err
}
}
return len(bytes), ap.eventHandler.Flush()
}
func (ap *AnsiParser) handle(b byte) error {
ap.context.currentChar = b
newState, err := ap.currState.Handle(b)
if err != nil {
return err
}
if newState == nil {
ap.logf("WARNING: newState is nil")
return errors.New("New state of 'nil' is invalid.")
}
if newState != ap.currState {
if err := ap.changeState(newState); err != nil {
return err
}
}
return nil
}
func (ap *AnsiParser) changeState(newState state) error {
ap.logf("ChangeState %s --> %s", ap.currState.Name(), newState.Name())
// Exit old state
if err := ap.currState.Exit(); err != nil {
ap.logf("Exit state '%s' failed with : '%v'", ap.currState.Name(), err)
return err
}
// Perform transition action
if err := ap.currState.Transition(newState); err != nil {
ap.logf("Transition from '%s' to '%s' failed with: '%v'", ap.currState.Name(), newState.Name, err)
return err
}
// Enter new state
if err := newState.Enter(); err != nil {
ap.logf("Enter state '%s' failed with: '%v'", newState.Name(), err)
return err
}
ap.currState = newState
return nil
}

99
vendor/github.com/Azure/go-ansiterm/parser_action_helpers.go generated vendored Normal file
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@ -0,0 +1,99 @@
package ansiterm
import (
"strconv"
)
func parseParams(bytes []byte) ([]string, error) {
paramBuff := make([]byte, 0, 0)
params := []string{}
for _, v := range bytes {
if v == ';' {
if len(paramBuff) > 0 {
// Completed parameter, append it to the list
s := string(paramBuff)
params = append(params, s)
paramBuff = make([]byte, 0, 0)
}
} else {
paramBuff = append(paramBuff, v)
}
}
// Last parameter may not be terminated with ';'
if len(paramBuff) > 0 {
s := string(paramBuff)
params = append(params, s)
}
return params, nil
}
func parseCmd(context ansiContext) (string, error) {
return string(context.currentChar), nil
}
func getInt(params []string, dflt int) int {
i := getInts(params, 1, dflt)[0]
return i
}
func getInts(params []string, minCount int, dflt int) []int {
ints := []int{}
for _, v := range params {
i, _ := strconv.Atoi(v)
// Zero is mapped to the default value in VT100.
if i == 0 {
i = dflt
}
ints = append(ints, i)
}
if len(ints) < minCount {
remaining := minCount - len(ints)
for i := 0; i < remaining; i++ {
ints = append(ints, dflt)
}
}
return ints
}
func (ap *AnsiParser) modeDispatch(param string, set bool) error {
switch param {
case "?3":
return ap.eventHandler.DECCOLM(set)
case "?6":
return ap.eventHandler.DECOM(set)
case "?25":
return ap.eventHandler.DECTCEM(set)
}
return nil
}
func (ap *AnsiParser) hDispatch(params []string) error {
if len(params) == 1 {
return ap.modeDispatch(params[0], true)
}
return nil
}
func (ap *AnsiParser) lDispatch(params []string) error {
if len(params) == 1 {
return ap.modeDispatch(params[0], false)
}
return nil
}
func getEraseParam(params []string) int {
param := getInt(params, 0)
if param < 0 || 3 < param {
param = 0
}
return param
}

119
vendor/github.com/Azure/go-ansiterm/parser_actions.go generated vendored Normal file
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@ -0,0 +1,119 @@
package ansiterm
func (ap *AnsiParser) collectParam() error {
currChar := ap.context.currentChar
ap.logf("collectParam %#x", currChar)
ap.context.paramBuffer = append(ap.context.paramBuffer, currChar)
return nil
}
func (ap *AnsiParser) collectInter() error {
currChar := ap.context.currentChar
ap.logf("collectInter %#x", currChar)
ap.context.paramBuffer = append(ap.context.interBuffer, currChar)
return nil
}
func (ap *AnsiParser) escDispatch() error {
cmd, _ := parseCmd(*ap.context)
intermeds := ap.context.interBuffer
ap.logf("escDispatch currentChar: %#x", ap.context.currentChar)
ap.logf("escDispatch: %v(%v)", cmd, intermeds)
switch cmd {
case "D": // IND
return ap.eventHandler.IND()
case "E": // NEL, equivalent to CRLF
err := ap.eventHandler.Execute(ANSI_CARRIAGE_RETURN)
if err == nil {
err = ap.eventHandler.Execute(ANSI_LINE_FEED)
}
return err
case "M": // RI
return ap.eventHandler.RI()
}
return nil
}
func (ap *AnsiParser) csiDispatch() error {
cmd, _ := parseCmd(*ap.context)
params, _ := parseParams(ap.context.paramBuffer)
ap.logf("Parsed params: %v with length: %d", params, len(params))
ap.logf("csiDispatch: %v(%v)", cmd, params)
switch cmd {
case "@":
return ap.eventHandler.ICH(getInt(params, 1))
case "A":
return ap.eventHandler.CUU(getInt(params, 1))
case "B":
return ap.eventHandler.CUD(getInt(params, 1))
case "C":
return ap.eventHandler.CUF(getInt(params, 1))
case "D":
return ap.eventHandler.CUB(getInt(params, 1))
case "E":
return ap.eventHandler.CNL(getInt(params, 1))
case "F":
return ap.eventHandler.CPL(getInt(params, 1))
case "G":
return ap.eventHandler.CHA(getInt(params, 1))
case "H":
ints := getInts(params, 2, 1)
x, y := ints[0], ints[1]
return ap.eventHandler.CUP(x, y)
case "J":
param := getEraseParam(params)
return ap.eventHandler.ED(param)
case "K":
param := getEraseParam(params)
return ap.eventHandler.EL(param)
case "L":
return ap.eventHandler.IL(getInt(params, 1))
case "M":
return ap.eventHandler.DL(getInt(params, 1))
case "P":
return ap.eventHandler.DCH(getInt(params, 1))
case "S":
return ap.eventHandler.SU(getInt(params, 1))
case "T":
return ap.eventHandler.SD(getInt(params, 1))
case "c":
return ap.eventHandler.DA(params)
case "d":
return ap.eventHandler.VPA(getInt(params, 1))
case "f":
ints := getInts(params, 2, 1)
x, y := ints[0], ints[1]
return ap.eventHandler.HVP(x, y)
case "h":
return ap.hDispatch(params)
case "l":
return ap.lDispatch(params)
case "m":
return ap.eventHandler.SGR(getInts(params, 1, 0))
case "r":
ints := getInts(params, 2, 1)
top, bottom := ints[0], ints[1]
return ap.eventHandler.DECSTBM(top, bottom)
default:
ap.logf("ERROR: Unsupported CSI command: '%s', with full context: %v", cmd, ap.context)
return nil
}
}
func (ap *AnsiParser) print() error {
return ap.eventHandler.Print(ap.context.currentChar)
}
func (ap *AnsiParser) clear() error {
ap.context = &ansiContext{}
return nil
}
func (ap *AnsiParser) execute() error {
return ap.eventHandler.Execute(ap.context.currentChar)
}

71
vendor/github.com/Azure/go-ansiterm/states.go generated vendored Normal file
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@ -0,0 +1,71 @@
package ansiterm
type stateID int
type state interface {
Enter() error
Exit() error
Handle(byte) (state, error)
Name() string
Transition(state) error
}
type baseState struct {
name string
parser *AnsiParser
}
func (base baseState) Enter() error {
return nil
}
func (base baseState) Exit() error {
return nil
}
func (base baseState) Handle(b byte) (s state, e error) {
switch {
case b == CSI_ENTRY:
return base.parser.csiEntry, nil
case b == DCS_ENTRY:
return base.parser.dcsEntry, nil
case b == ANSI_ESCAPE_PRIMARY:
return base.parser.escape, nil
case b == OSC_STRING:
return base.parser.oscString, nil
case sliceContains(toGroundBytes, b):
return base.parser.ground, nil
}
return nil, nil
}
func (base baseState) Name() string {
return base.name
}
func (base baseState) Transition(s state) error {
if s == base.parser.ground {
execBytes := []byte{0x18}
execBytes = append(execBytes, 0x1A)
execBytes = append(execBytes, getByteRange(0x80, 0x8F)...)
execBytes = append(execBytes, getByteRange(0x91, 0x97)...)
execBytes = append(execBytes, 0x99)
execBytes = append(execBytes, 0x9A)
if sliceContains(execBytes, base.parser.context.currentChar) {
return base.parser.execute()
}
}
return nil
}
type dcsEntryState struct {
baseState
}
type errorState struct {
baseState
}

21
vendor/github.com/Azure/go-ansiterm/utilities.go generated vendored Normal file
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@ -0,0 +1,21 @@
package ansiterm
import (
"strconv"
)
func sliceContains(bytes []byte, b byte) bool {
for _, v := range bytes {
if v == b {
return true
}
}
return false
}
func convertBytesToInteger(bytes []byte) int {
s := string(bytes)
i, _ := strconv.Atoi(s)
return i
}

182
vendor/github.com/Azure/go-ansiterm/winterm/ansi.go generated vendored Normal file
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@ -0,0 +1,182 @@
// +build windows
package winterm
import (
"fmt"
"os"
"strconv"
"strings"
"syscall"
"github.com/Azure/go-ansiterm"
)
// Windows keyboard constants
// See https://msdn.microsoft.com/en-us/library/windows/desktop/dd375731(v=vs.85).aspx.
const (
VK_PRIOR = 0x21 // PAGE UP key
VK_NEXT = 0x22 // PAGE DOWN key
VK_END = 0x23 // END key
VK_HOME = 0x24 // HOME key
VK_LEFT = 0x25 // LEFT ARROW key
VK_UP = 0x26 // UP ARROW key
VK_RIGHT = 0x27 // RIGHT ARROW key
VK_DOWN = 0x28 // DOWN ARROW key
VK_SELECT = 0x29 // SELECT key
VK_PRINT = 0x2A // PRINT key
VK_EXECUTE = 0x2B // EXECUTE key
VK_SNAPSHOT = 0x2C // PRINT SCREEN key
VK_INSERT = 0x2D // INS key
VK_DELETE = 0x2E // DEL key
VK_HELP = 0x2F // HELP key
VK_F1 = 0x70 // F1 key
VK_F2 = 0x71 // F2 key
VK_F3 = 0x72 // F3 key
VK_F4 = 0x73 // F4 key
VK_F5 = 0x74 // F5 key
VK_F6 = 0x75 // F6 key
VK_F7 = 0x76 // F7 key
VK_F8 = 0x77 // F8 key
VK_F9 = 0x78 // F9 key
VK_F10 = 0x79 // F10 key
VK_F11 = 0x7A // F11 key
VK_F12 = 0x7B // F12 key
RIGHT_ALT_PRESSED = 0x0001
LEFT_ALT_PRESSED = 0x0002
RIGHT_CTRL_PRESSED = 0x0004
LEFT_CTRL_PRESSED = 0x0008
SHIFT_PRESSED = 0x0010
NUMLOCK_ON = 0x0020
SCROLLLOCK_ON = 0x0040
CAPSLOCK_ON = 0x0080
ENHANCED_KEY = 0x0100
)
type ansiCommand struct {
CommandBytes []byte
Command string
Parameters []string
IsSpecial bool
}
func newAnsiCommand(command []byte) *ansiCommand {
if isCharacterSelectionCmdChar(command[1]) {
// Is Character Set Selection commands
return &ansiCommand{
CommandBytes: command,
Command: string(command),
IsSpecial: true,
}
}
// last char is command character
lastCharIndex := len(command) - 1
ac := &ansiCommand{
CommandBytes: command,
Command: string(command[lastCharIndex]),
IsSpecial: false,
}
// more than a single escape
if lastCharIndex != 0 {
start := 1
// skip if double char escape sequence
if command[0] == ansiterm.ANSI_ESCAPE_PRIMARY && command[1] == ansiterm.ANSI_ESCAPE_SECONDARY {
start++
}
// convert this to GetNextParam method
ac.Parameters = strings.Split(string(command[start:lastCharIndex]), ansiterm.ANSI_PARAMETER_SEP)
}
return ac
}
func (ac *ansiCommand) paramAsSHORT(index int, defaultValue int16) int16 {
if index < 0 || index >= len(ac.Parameters) {
return defaultValue
}
param, err := strconv.ParseInt(ac.Parameters[index], 10, 16)
if err != nil {
return defaultValue
}
return int16(param)
}
func (ac *ansiCommand) String() string {
return fmt.Sprintf("0x%v \"%v\" (\"%v\")",
bytesToHex(ac.CommandBytes),
ac.Command,
strings.Join(ac.Parameters, "\",\""))
}
// isAnsiCommandChar returns true if the passed byte falls within the range of ANSI commands.
// See http://manpages.ubuntu.com/manpages/intrepid/man4/console_codes.4.html.
func isAnsiCommandChar(b byte) bool {
switch {
case ansiterm.ANSI_COMMAND_FIRST <= b && b <= ansiterm.ANSI_COMMAND_LAST && b != ansiterm.ANSI_ESCAPE_SECONDARY:
return true
case b == ansiterm.ANSI_CMD_G1 || b == ansiterm.ANSI_CMD_OSC || b == ansiterm.ANSI_CMD_DECPAM || b == ansiterm.ANSI_CMD_DECPNM:
// non-CSI escape sequence terminator
return true
case b == ansiterm.ANSI_CMD_STR_TERM || b == ansiterm.ANSI_BEL:
// String escape sequence terminator
return true
}
return false
}
func isXtermOscSequence(command []byte, current byte) bool {
return (len(command) >= 2 && command[0] == ansiterm.ANSI_ESCAPE_PRIMARY && command[1] == ansiterm.ANSI_CMD_OSC && current != ansiterm.ANSI_BEL)
}
func isCharacterSelectionCmdChar(b byte) bool {
return (b == ansiterm.ANSI_CMD_G0 || b == ansiterm.ANSI_CMD_G1 || b == ansiterm.ANSI_CMD_G2 || b == ansiterm.ANSI_CMD_G3)
}
// bytesToHex converts a slice of bytes to a human-readable string.
func bytesToHex(b []byte) string {
hex := make([]string, len(b))
for i, ch := range b {
hex[i] = fmt.Sprintf("%X", ch)
}
return strings.Join(hex, "")
}
// ensureInRange adjusts the passed value, if necessary, to ensure it is within
// the passed min / max range.
func ensureInRange(n int16, min int16, max int16) int16 {
if n < min {
return min
} else if n > max {
return max
} else {
return n
}
}
func GetStdFile(nFile int) (*os.File, uintptr) {
var file *os.File
switch nFile {
case syscall.STD_INPUT_HANDLE:
file = os.Stdin
case syscall.STD_OUTPUT_HANDLE:
file = os.Stdout
case syscall.STD_ERROR_HANDLE:
file = os.Stderr
default:
panic(fmt.Errorf("Invalid standard handle identifier: %v", nFile))
}
fd, err := syscall.GetStdHandle(nFile)
if err != nil {
panic(fmt.Errorf("Invalid standard handle identifier: %v -- %v", nFile, err))
}
return file, uintptr(fd)
}

327
vendor/github.com/Azure/go-ansiterm/winterm/api.go generated vendored Normal file
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// +build windows
package winterm
import (
"fmt"
"syscall"
"unsafe"
)
//===========================================================================================================
// IMPORTANT NOTE:
//
// The methods below make extensive use of the "unsafe" package to obtain the required pointers.
// Beginning in Go 1.3, the garbage collector may release local variables (e.g., incoming arguments, stack
// variables) the pointers reference *before* the API completes.
//
// As a result, in those cases, the code must hint that the variables remain in active by invoking the
// dummy method "use" (see below). Newer versions of Go are planned to change the mechanism to no longer
// require unsafe pointers.
//
// If you add or modify methods, ENSURE protection of local variables through the "use" builtin to inform
// the garbage collector the variables remain in use if:
//
// -- The value is not a pointer (e.g., int32, struct)
// -- The value is not referenced by the method after passing the pointer to Windows
//
// See http://golang.org/doc/go1.3.
//===========================================================================================================
var (
kernel32DLL = syscall.NewLazyDLL("kernel32.dll")
getConsoleCursorInfoProc = kernel32DLL.NewProc("GetConsoleCursorInfo")
setConsoleCursorInfoProc = kernel32DLL.NewProc("SetConsoleCursorInfo")
setConsoleCursorPositionProc = kernel32DLL.NewProc("SetConsoleCursorPosition")
setConsoleModeProc = kernel32DLL.NewProc("SetConsoleMode")
getConsoleScreenBufferInfoProc = kernel32DLL.NewProc("GetConsoleScreenBufferInfo")
setConsoleScreenBufferSizeProc = kernel32DLL.NewProc("SetConsoleScreenBufferSize")
scrollConsoleScreenBufferProc = kernel32DLL.NewProc("ScrollConsoleScreenBufferA")
setConsoleTextAttributeProc = kernel32DLL.NewProc("SetConsoleTextAttribute")
setConsoleWindowInfoProc = kernel32DLL.NewProc("SetConsoleWindowInfo")
writeConsoleOutputProc = kernel32DLL.NewProc("WriteConsoleOutputW")
readConsoleInputProc = kernel32DLL.NewProc("ReadConsoleInputW")
waitForSingleObjectProc = kernel32DLL.NewProc("WaitForSingleObject")
)
// Windows Console constants
const (
// Console modes
// See https://msdn.microsoft.com/en-us/library/windows/desktop/ms686033(v=vs.85).aspx.
ENABLE_PROCESSED_INPUT = 0x0001
ENABLE_LINE_INPUT = 0x0002
ENABLE_ECHO_INPUT = 0x0004
ENABLE_WINDOW_INPUT = 0x0008
ENABLE_MOUSE_INPUT = 0x0010
ENABLE_INSERT_MODE = 0x0020
ENABLE_QUICK_EDIT_MODE = 0x0040
ENABLE_EXTENDED_FLAGS = 0x0080
ENABLE_AUTO_POSITION = 0x0100
ENABLE_VIRTUAL_TERMINAL_INPUT = 0x0200
ENABLE_PROCESSED_OUTPUT = 0x0001
ENABLE_WRAP_AT_EOL_OUTPUT = 0x0002
ENABLE_VIRTUAL_TERMINAL_PROCESSING = 0x0004
DISABLE_NEWLINE_AUTO_RETURN = 0x0008
ENABLE_LVB_GRID_WORLDWIDE = 0x0010
// Character attributes
// Note:
// -- The attributes are combined to produce various colors (e.g., Blue + Green will create Cyan).
// Clearing all foreground or background colors results in black; setting all creates white.
// See https://msdn.microsoft.com/en-us/library/windows/desktop/ms682088(v=vs.85).aspx#_win32_character_attributes.
FOREGROUND_BLUE uint16 = 0x0001
FOREGROUND_GREEN uint16 = 0x0002
FOREGROUND_RED uint16 = 0x0004
FOREGROUND_INTENSITY uint16 = 0x0008
FOREGROUND_MASK uint16 = 0x000F
BACKGROUND_BLUE uint16 = 0x0010
BACKGROUND_GREEN uint16 = 0x0020
BACKGROUND_RED uint16 = 0x0040
BACKGROUND_INTENSITY uint16 = 0x0080
BACKGROUND_MASK uint16 = 0x00F0
COMMON_LVB_MASK uint16 = 0xFF00
COMMON_LVB_REVERSE_VIDEO uint16 = 0x4000
COMMON_LVB_UNDERSCORE uint16 = 0x8000
// Input event types
// See https://msdn.microsoft.com/en-us/library/windows/desktop/ms683499(v=vs.85).aspx.
KEY_EVENT = 0x0001
MOUSE_EVENT = 0x0002
WINDOW_BUFFER_SIZE_EVENT = 0x0004
MENU_EVENT = 0x0008
FOCUS_EVENT = 0x0010
// WaitForSingleObject return codes
WAIT_ABANDONED = 0x00000080
WAIT_FAILED = 0xFFFFFFFF
WAIT_SIGNALED = 0x0000000
WAIT_TIMEOUT = 0x00000102
// WaitForSingleObject wait duration
WAIT_INFINITE = 0xFFFFFFFF
WAIT_ONE_SECOND = 1000
WAIT_HALF_SECOND = 500
WAIT_QUARTER_SECOND = 250
)
// Windows API Console types
// -- See https://msdn.microsoft.com/en-us/library/windows/desktop/ms682101(v=vs.85).aspx for Console specific types (e.g., COORD)
// -- See https://msdn.microsoft.com/en-us/library/aa296569(v=vs.60).aspx for comments on alignment
type (
CHAR_INFO struct {
UnicodeChar uint16
Attributes uint16
}
CONSOLE_CURSOR_INFO struct {
Size uint32
Visible int32
}
CONSOLE_SCREEN_BUFFER_INFO struct {
Size COORD
CursorPosition COORD
Attributes uint16
Window SMALL_RECT
MaximumWindowSize COORD
}
COORD struct {
X int16
Y int16
}
SMALL_RECT struct {
Left int16
Top int16
Right int16
Bottom int16
}
// INPUT_RECORD is a C/C++ union of which KEY_EVENT_RECORD is one case, it is also the largest
// See https://msdn.microsoft.com/en-us/library/windows/desktop/ms683499(v=vs.85).aspx.
INPUT_RECORD struct {
EventType uint16
KeyEvent KEY_EVENT_RECORD
}
KEY_EVENT_RECORD struct {
KeyDown int32
RepeatCount uint16
VirtualKeyCode uint16
VirtualScanCode uint16
UnicodeChar uint16
ControlKeyState uint32
}
WINDOW_BUFFER_SIZE struct {
Size COORD
}
)
// boolToBOOL converts a Go bool into a Windows int32.
func boolToBOOL(f bool) int32 {
if f {
return int32(1)
} else {
return int32(0)
}
}
// GetConsoleCursorInfo retrieves information about the size and visiblity of the console cursor.
// See https://msdn.microsoft.com/en-us/library/windows/desktop/ms683163(v=vs.85).aspx.
func GetConsoleCursorInfo(handle uintptr, cursorInfo *CONSOLE_CURSOR_INFO) error {
r1, r2, err := getConsoleCursorInfoProc.Call(handle, uintptr(unsafe.Pointer(cursorInfo)), 0)
return checkError(r1, r2, err)
}
// SetConsoleCursorInfo sets the size and visiblity of the console cursor.
// See https://msdn.microsoft.com/en-us/library/windows/desktop/ms686019(v=vs.85).aspx.
func SetConsoleCursorInfo(handle uintptr, cursorInfo *CONSOLE_CURSOR_INFO) error {
r1, r2, err := setConsoleCursorInfoProc.Call(handle, uintptr(unsafe.Pointer(cursorInfo)), 0)
return checkError(r1, r2, err)
}
// SetConsoleCursorPosition location of the console cursor.
// See https://msdn.microsoft.com/en-us/library/windows/desktop/ms686025(v=vs.85).aspx.
func SetConsoleCursorPosition(handle uintptr, coord COORD) error {
r1, r2, err := setConsoleCursorPositionProc.Call(handle, coordToPointer(coord))
use(coord)
return checkError(r1, r2, err)
}
// GetConsoleMode gets the console mode for given file descriptor
// See http://msdn.microsoft.com/en-us/library/windows/desktop/ms683167(v=vs.85).aspx.
func GetConsoleMode(handle uintptr) (mode uint32, err error) {
err = syscall.GetConsoleMode(syscall.Handle(handle), &mode)
return mode, err
}
// SetConsoleMode sets the console mode for given file descriptor
// See http://msdn.microsoft.com/en-us/library/windows/desktop/ms686033(v=vs.85).aspx.
func SetConsoleMode(handle uintptr, mode uint32) error {
r1, r2, err := setConsoleModeProc.Call(handle, uintptr(mode), 0)
use(mode)
return checkError(r1, r2, err)
}
// GetConsoleScreenBufferInfo retrieves information about the specified console screen buffer.
// See http://msdn.microsoft.com/en-us/library/windows/desktop/ms683171(v=vs.85).aspx.
func GetConsoleScreenBufferInfo(handle uintptr) (*CONSOLE_SCREEN_BUFFER_INFO, error) {
info := CONSOLE_SCREEN_BUFFER_INFO{}
err := checkError(getConsoleScreenBufferInfoProc.Call(handle, uintptr(unsafe.Pointer(&info)), 0))
if err != nil {
return nil, err
}
return &info, nil
}
func ScrollConsoleScreenBuffer(handle uintptr, scrollRect SMALL_RECT, clipRect SMALL_RECT, destOrigin COORD, char CHAR_INFO) error {
r1, r2, err := scrollConsoleScreenBufferProc.Call(handle, uintptr(unsafe.Pointer(&scrollRect)), uintptr(unsafe.Pointer(&clipRect)), coordToPointer(destOrigin), uintptr(unsafe.Pointer(&char)))
use(scrollRect)
use(clipRect)
use(destOrigin)
use(char)
return checkError(r1, r2, err)
}
// SetConsoleScreenBufferSize sets the size of the console screen buffer.
// See https://msdn.microsoft.com/en-us/library/windows/desktop/ms686044(v=vs.85).aspx.
func SetConsoleScreenBufferSize(handle uintptr, coord COORD) error {
r1, r2, err := setConsoleScreenBufferSizeProc.Call(handle, coordToPointer(coord))
use(coord)
return checkError(r1, r2, err)
}
// SetConsoleTextAttribute sets the attributes of characters written to the
// console screen buffer by the WriteFile or WriteConsole function.
// See http://msdn.microsoft.com/en-us/library/windows/desktop/ms686047(v=vs.85).aspx.
func SetConsoleTextAttribute(handle uintptr, attribute uint16) error {
r1, r2, err := setConsoleTextAttributeProc.Call(handle, uintptr(attribute), 0)
use(attribute)
return checkError(r1, r2, err)
}
// SetConsoleWindowInfo sets the size and position of the console screen buffer's window.
// Note that the size and location must be within and no larger than the backing console screen buffer.
// See https://msdn.microsoft.com/en-us/library/windows/desktop/ms686125(v=vs.85).aspx.
func SetConsoleWindowInfo(handle uintptr, isAbsolute bool, rect SMALL_RECT) error {
r1, r2, err := setConsoleWindowInfoProc.Call(handle, uintptr(boolToBOOL(isAbsolute)), uintptr(unsafe.Pointer(&rect)))
use(isAbsolute)
use(rect)
return checkError(r1, r2, err)
}
// WriteConsoleOutput writes the CHAR_INFOs from the provided buffer to the active console buffer.
// See https://msdn.microsoft.com/en-us/library/windows/desktop/ms687404(v=vs.85).aspx.
func WriteConsoleOutput(handle uintptr, buffer []CHAR_INFO, bufferSize COORD, bufferCoord COORD, writeRegion *SMALL_RECT) error {
r1, r2, err := writeConsoleOutputProc.Call(handle, uintptr(unsafe.Pointer(&buffer[0])), coordToPointer(bufferSize), coordToPointer(bufferCoord), uintptr(unsafe.Pointer(writeRegion)))
use(buffer)
use(bufferSize)
use(bufferCoord)
return checkError(r1, r2, err)
}
// ReadConsoleInput reads (and removes) data from the console input buffer.
// See https://msdn.microsoft.com/en-us/library/windows/desktop/ms684961(v=vs.85).aspx.
func ReadConsoleInput(handle uintptr, buffer []INPUT_RECORD, count *uint32) error {
r1, r2, err := readConsoleInputProc.Call(handle, uintptr(unsafe.Pointer(&buffer[0])), uintptr(len(buffer)), uintptr(unsafe.Pointer(count)))
use(buffer)
return checkError(r1, r2, err)
}
// WaitForSingleObject waits for the passed handle to be signaled.
// It returns true if the handle was signaled; false otherwise.
// See https://msdn.microsoft.com/en-us/library/windows/desktop/ms687032(v=vs.85).aspx.
func WaitForSingleObject(handle uintptr, msWait uint32) (bool, error) {
r1, _, err := waitForSingleObjectProc.Call(handle, uintptr(uint32(msWait)))
switch r1 {
case WAIT_ABANDONED, WAIT_TIMEOUT:
return false, nil
case WAIT_SIGNALED:
return true, nil
}
use(msWait)
return false, err
}
// String helpers
func (info CONSOLE_SCREEN_BUFFER_INFO) String() string {
return fmt.Sprintf("Size(%v) Cursor(%v) Window(%v) Max(%v)", info.Size, info.CursorPosition, info.Window, info.MaximumWindowSize)
}
func (coord COORD) String() string {
return fmt.Sprintf("%v,%v", coord.X, coord.Y)
}
func (rect SMALL_RECT) String() string {
return fmt.Sprintf("(%v,%v),(%v,%v)", rect.Left, rect.Top, rect.Right, rect.Bottom)
}
// checkError evaluates the results of a Windows API call and returns the error if it failed.
func checkError(r1, r2 uintptr, err error) error {
// Windows APIs return non-zero to indicate success
if r1 != 0 {
return nil
}
// Return the error if provided, otherwise default to EINVAL
if err != nil {
return err
}
return syscall.EINVAL
}
// coordToPointer converts a COORD into a uintptr (by fooling the type system).
func coordToPointer(c COORD) uintptr {
// Note: This code assumes the two SHORTs are correctly laid out; the "cast" to uint32 is just to get a pointer to pass.
return uintptr(*((*uint32)(unsafe.Pointer(&c))))
}
// use is a no-op, but the compiler cannot see that it is.
// Calling use(p) ensures that p is kept live until that point.
func use(p interface{}) {}

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vendor/github.com/Azure/go-ansiterm/winterm/attr_translation.go generated vendored Normal file
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// +build windows
package winterm
import "github.com/Azure/go-ansiterm"
const (
FOREGROUND_COLOR_MASK = FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE
BACKGROUND_COLOR_MASK = BACKGROUND_RED | BACKGROUND_GREEN | BACKGROUND_BLUE
)
// collectAnsiIntoWindowsAttributes modifies the passed Windows text mode flags to reflect the
// request represented by the passed ANSI mode.
func collectAnsiIntoWindowsAttributes(windowsMode uint16, inverted bool, baseMode uint16, ansiMode int16) (uint16, bool) {
switch ansiMode {
// Mode styles
case ansiterm.ANSI_SGR_BOLD:
windowsMode = windowsMode | FOREGROUND_INTENSITY
case ansiterm.ANSI_SGR_DIM, ansiterm.ANSI_SGR_BOLD_DIM_OFF:
windowsMode &^= FOREGROUND_INTENSITY
case ansiterm.ANSI_SGR_UNDERLINE:
windowsMode = windowsMode | COMMON_LVB_UNDERSCORE
case ansiterm.ANSI_SGR_REVERSE:
inverted = true
case ansiterm.ANSI_SGR_REVERSE_OFF:
inverted = false
case ansiterm.ANSI_SGR_UNDERLINE_OFF:
windowsMode &^= COMMON_LVB_UNDERSCORE
// Foreground colors
case ansiterm.ANSI_SGR_FOREGROUND_DEFAULT:
windowsMode = (windowsMode &^ FOREGROUND_MASK) | (baseMode & FOREGROUND_MASK)
case ansiterm.ANSI_SGR_FOREGROUND_BLACK:
windowsMode = (windowsMode &^ FOREGROUND_COLOR_MASK)
case ansiterm.ANSI_SGR_FOREGROUND_RED:
windowsMode = (windowsMode &^ FOREGROUND_COLOR_MASK) | FOREGROUND_RED
case ansiterm.ANSI_SGR_FOREGROUND_GREEN:
windowsMode = (windowsMode &^ FOREGROUND_COLOR_MASK) | FOREGROUND_GREEN
case ansiterm.ANSI_SGR_FOREGROUND_YELLOW:
windowsMode = (windowsMode &^ FOREGROUND_COLOR_MASK) | FOREGROUND_RED | FOREGROUND_GREEN
case ansiterm.ANSI_SGR_FOREGROUND_BLUE:
windowsMode = (windowsMode &^ FOREGROUND_COLOR_MASK) | FOREGROUND_BLUE
case ansiterm.ANSI_SGR_FOREGROUND_MAGENTA:
windowsMode = (windowsMode &^ FOREGROUND_COLOR_MASK) | FOREGROUND_RED | FOREGROUND_BLUE
case ansiterm.ANSI_SGR_FOREGROUND_CYAN:
windowsMode = (windowsMode &^ FOREGROUND_COLOR_MASK) | FOREGROUND_GREEN | FOREGROUND_BLUE
case ansiterm.ANSI_SGR_FOREGROUND_WHITE:
windowsMode = (windowsMode &^ FOREGROUND_COLOR_MASK) | FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE
// Background colors
case ansiterm.ANSI_SGR_BACKGROUND_DEFAULT:
// Black with no intensity
windowsMode = (windowsMode &^ BACKGROUND_MASK) | (baseMode & BACKGROUND_MASK)
case ansiterm.ANSI_SGR_BACKGROUND_BLACK:
windowsMode = (windowsMode &^ BACKGROUND_COLOR_MASK)
case ansiterm.ANSI_SGR_BACKGROUND_RED:
windowsMode = (windowsMode &^ BACKGROUND_COLOR_MASK) | BACKGROUND_RED
case ansiterm.ANSI_SGR_BACKGROUND_GREEN:
windowsMode = (windowsMode &^ BACKGROUND_COLOR_MASK) | BACKGROUND_GREEN
case ansiterm.ANSI_SGR_BACKGROUND_YELLOW:
windowsMode = (windowsMode &^ BACKGROUND_COLOR_MASK) | BACKGROUND_RED | BACKGROUND_GREEN
case ansiterm.ANSI_SGR_BACKGROUND_BLUE:
windowsMode = (windowsMode &^ BACKGROUND_COLOR_MASK) | BACKGROUND_BLUE
case ansiterm.ANSI_SGR_BACKGROUND_MAGENTA:
windowsMode = (windowsMode &^ BACKGROUND_COLOR_MASK) | BACKGROUND_RED | BACKGROUND_BLUE
case ansiterm.ANSI_SGR_BACKGROUND_CYAN:
windowsMode = (windowsMode &^ BACKGROUND_COLOR_MASK) | BACKGROUND_GREEN | BACKGROUND_BLUE
case ansiterm.ANSI_SGR_BACKGROUND_WHITE:
windowsMode = (windowsMode &^ BACKGROUND_COLOR_MASK) | BACKGROUND_RED | BACKGROUND_GREEN | BACKGROUND_BLUE
}
return windowsMode, inverted
}
// invertAttributes inverts the foreground and background colors of a Windows attributes value
func invertAttributes(windowsMode uint16) uint16 {
return (COMMON_LVB_MASK & windowsMode) | ((FOREGROUND_MASK & windowsMode) << 4) | ((BACKGROUND_MASK & windowsMode) >> 4)
}

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vendor/github.com/Azure/go-ansiterm/winterm/cursor_helpers.go generated vendored Normal file
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// +build windows
package winterm
const (
horizontal = iota
vertical
)
func (h *windowsAnsiEventHandler) getCursorWindow(info *CONSOLE_SCREEN_BUFFER_INFO) SMALL_RECT {
if h.originMode {
sr := h.effectiveSr(info.Window)
return SMALL_RECT{
Top: sr.top,
Bottom: sr.bottom,
Left: 0,
Right: info.Size.X - 1,
}
} else {
return SMALL_RECT{
Top: info.Window.Top,
Bottom: info.Window.Bottom,
Left: 0,
Right: info.Size.X - 1,
}
}
}
// setCursorPosition sets the cursor to the specified position, bounded to the screen size
func (h *windowsAnsiEventHandler) setCursorPosition(position COORD, window SMALL_RECT) error {
position.X = ensureInRange(position.X, window.Left, window.Right)
position.Y = ensureInRange(position.Y, window.Top, window.Bottom)
err := SetConsoleCursorPosition(h.fd, position)
if err != nil {
return err
}
h.logf("Cursor position set: (%d, %d)", position.X, position.Y)
return err
}
func (h *windowsAnsiEventHandler) moveCursorVertical(param int) error {
return h.moveCursor(vertical, param)
}
func (h *windowsAnsiEventHandler) moveCursorHorizontal(param int) error {
return h.moveCursor(horizontal, param)
}
func (h *windowsAnsiEventHandler) moveCursor(moveMode int, param int) error {
info, err := GetConsoleScreenBufferInfo(h.fd)
if err != nil {
return err
}
position := info.CursorPosition
switch moveMode {
case horizontal:
position.X += int16(param)
case vertical:
position.Y += int16(param)
}
if err = h.setCursorPosition(position, h.getCursorWindow(info)); err != nil {
return err
}
return nil
}
func (h *windowsAnsiEventHandler) moveCursorLine(param int) error {
info, err := GetConsoleScreenBufferInfo(h.fd)
if err != nil {
return err
}
position := info.CursorPosition
position.X = 0
position.Y += int16(param)
if err = h.setCursorPosition(position, h.getCursorWindow(info)); err != nil {
return err
}
return nil
}
func (h *windowsAnsiEventHandler) moveCursorColumn(param int) error {
info, err := GetConsoleScreenBufferInfo(h.fd)
if err != nil {
return err
}
position := info.CursorPosition
position.X = int16(param) - 1
if err = h.setCursorPosition(position, h.getCursorWindow(info)); err != nil {
return err
}
return nil
}

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vendor/github.com/Azure/go-ansiterm/winterm/erase_helpers.go generated vendored Normal file
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// +build windows
package winterm
import "github.com/Azure/go-ansiterm"
func (h *windowsAnsiEventHandler) clearRange(attributes uint16, fromCoord COORD, toCoord COORD) error {
// Ignore an invalid (negative area) request
if toCoord.Y < fromCoord.Y {
return nil
}
var err error
var coordStart = COORD{}
var coordEnd = COORD{}
xCurrent, yCurrent := fromCoord.X, fromCoord.Y
xEnd, yEnd := toCoord.X, toCoord.Y
// Clear any partial initial line
if xCurrent > 0 {
coordStart.X, coordStart.Y = xCurrent, yCurrent
coordEnd.X, coordEnd.Y = xEnd, yCurrent
err = h.clearRect(attributes, coordStart, coordEnd)
if err != nil {
return err
}
xCurrent = 0
yCurrent += 1
}
// Clear intervening rectangular section
if yCurrent < yEnd {
coordStart.X, coordStart.Y = xCurrent, yCurrent
coordEnd.X, coordEnd.Y = xEnd, yEnd-1
err = h.clearRect(attributes, coordStart, coordEnd)
if err != nil {
return err
}
xCurrent = 0
yCurrent = yEnd
}
// Clear remaining partial ending line
coordStart.X, coordStart.Y = xCurrent, yCurrent
coordEnd.X, coordEnd.Y = xEnd, yEnd
err = h.clearRect(attributes, coordStart, coordEnd)
if err != nil {
return err
}
return nil
}
func (h *windowsAnsiEventHandler) clearRect(attributes uint16, fromCoord COORD, toCoord COORD) error {
region := SMALL_RECT{Top: fromCoord.Y, Left: fromCoord.X, Bottom: toCoord.Y, Right: toCoord.X}
width := toCoord.X - fromCoord.X + 1
height := toCoord.Y - fromCoord.Y + 1
size := uint32(width) * uint32(height)
if size <= 0 {
return nil
}
buffer := make([]CHAR_INFO, size)
char := CHAR_INFO{ansiterm.FILL_CHARACTER, attributes}
for i := 0; i < int(size); i++ {
buffer[i] = char
}
err := WriteConsoleOutput(h.fd, buffer, COORD{X: width, Y: height}, COORD{X: 0, Y: 0}, &region)
if err != nil {
return err
}
return nil
}

118
vendor/github.com/Azure/go-ansiterm/winterm/scroll_helper.go generated vendored Normal file
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// +build windows
package winterm
// effectiveSr gets the current effective scroll region in buffer coordinates
func (h *windowsAnsiEventHandler) effectiveSr(window SMALL_RECT) scrollRegion {
top := addInRange(window.Top, h.sr.top, window.Top, window.Bottom)
bottom := addInRange(window.Top, h.sr.bottom, window.Top, window.Bottom)
if top >= bottom {
top = window.Top
bottom = window.Bottom
}
return scrollRegion{top: top, bottom: bottom}
}
func (h *windowsAnsiEventHandler) scrollUp(param int) error {
info, err := GetConsoleScreenBufferInfo(h.fd)
if err != nil {
return err
}
sr := h.effectiveSr(info.Window)
return h.scroll(param, sr, info)
}
func (h *windowsAnsiEventHandler) scrollDown(param int) error {
return h.scrollUp(-param)
}
func (h *windowsAnsiEventHandler) deleteLines(param int) error {
info, err := GetConsoleScreenBufferInfo(h.fd)
if err != nil {
return err
}
start := info.CursorPosition.Y
sr := h.effectiveSr(info.Window)
// Lines cannot be inserted or deleted outside the scrolling region.
if start >= sr.top && start <= sr.bottom {
sr.top = start
return h.scroll(param, sr, info)
} else {
return nil
}
}
func (h *windowsAnsiEventHandler) insertLines(param int) error {
return h.deleteLines(-param)
}
// scroll scrolls the provided scroll region by param lines. The scroll region is in buffer coordinates.
func (h *windowsAnsiEventHandler) scroll(param int, sr scrollRegion, info *CONSOLE_SCREEN_BUFFER_INFO) error {
h.logf("scroll: scrollTop: %d, scrollBottom: %d", sr.top, sr.bottom)
h.logf("scroll: windowTop: %d, windowBottom: %d", info.Window.Top, info.Window.Bottom)
// Copy from and clip to the scroll region (full buffer width)
scrollRect := SMALL_RECT{
Top: sr.top,
Bottom: sr.bottom,
Left: 0,
Right: info.Size.X - 1,
}
// Origin to which area should be copied
destOrigin := COORD{
X: 0,
Y: sr.top - int16(param),
}
char := CHAR_INFO{
UnicodeChar: ' ',
Attributes: h.attributes,
}
if err := ScrollConsoleScreenBuffer(h.fd, scrollRect, scrollRect, destOrigin, char); err != nil {
return err
}
return nil
}
func (h *windowsAnsiEventHandler) deleteCharacters(param int) error {
info, err := GetConsoleScreenBufferInfo(h.fd)
if err != nil {
return err
}
return h.scrollLine(param, info.CursorPosition, info)
}
func (h *windowsAnsiEventHandler) insertCharacters(param int) error {
return h.deleteCharacters(-param)
}
// scrollLine scrolls a line horizontally starting at the provided position by a number of columns.
func (h *windowsAnsiEventHandler) scrollLine(columns int, position COORD, info *CONSOLE_SCREEN_BUFFER_INFO) error {
// Copy from and clip to the scroll region (full buffer width)
scrollRect := SMALL_RECT{
Top: position.Y,
Bottom: position.Y,
Left: position.X,
Right: info.Size.X - 1,
}
// Origin to which area should be copied
destOrigin := COORD{
X: position.X - int16(columns),
Y: position.Y,
}
char := CHAR_INFO{
UnicodeChar: ' ',
Attributes: h.attributes,
}
if err := ScrollConsoleScreenBuffer(h.fd, scrollRect, scrollRect, destOrigin, char); err != nil {
return err
}
return nil
}

9
vendor/github.com/Azure/go-ansiterm/winterm/utilities.go generated vendored Normal file
View File

@ -0,0 +1,9 @@
// +build windows
package winterm
// AddInRange increments a value by the passed quantity while ensuring the values
// always remain within the supplied min / max range.
func addInRange(n int16, increment int16, min int16, max int16) int16 {
return ensureInRange(n+increment, min, max)
}

743
vendor/github.com/Azure/go-ansiterm/winterm/win_event_handler.go generated vendored Normal file
View File

@ -0,0 +1,743 @@
// +build windows
package winterm
import (
"bytes"
"log"
"os"
"strconv"
"github.com/Azure/go-ansiterm"
)
type windowsAnsiEventHandler struct {
fd uintptr
file *os.File
infoReset *CONSOLE_SCREEN_BUFFER_INFO
sr scrollRegion
buffer bytes.Buffer
attributes uint16
inverted bool
wrapNext bool
drewMarginByte bool
originMode bool
marginByte byte
curInfo *CONSOLE_SCREEN_BUFFER_INFO
curPos COORD
logf func(string, ...interface{})
}
type Option func(*windowsAnsiEventHandler)
func WithLogf(f func(string, ...interface{})) Option {
return func(w *windowsAnsiEventHandler) {
w.logf = f
}
}
func CreateWinEventHandler(fd uintptr, file *os.File, opts ...Option) ansiterm.AnsiEventHandler {
infoReset, err := GetConsoleScreenBufferInfo(fd)
if err != nil {
return nil
}
h := &windowsAnsiEventHandler{
fd: fd,
file: file,
infoReset: infoReset,
attributes: infoReset.Attributes,
}
for _, o := range opts {
o(h)
}
if isDebugEnv := os.Getenv(ansiterm.LogEnv); isDebugEnv == "1" {
logFile, _ := os.Create("winEventHandler.log")
logger := log.New(logFile, "", log.LstdFlags)
if h.logf != nil {
l := h.logf
h.logf = func(s string, v ...interface{}) {
l(s, v...)
logger.Printf(s, v...)
}
} else {
h.logf = logger.Printf
}
}
if h.logf == nil {
h.logf = func(string, ...interface{}) {}
}
return h
}
type scrollRegion struct {
top int16
bottom int16
}
// simulateLF simulates a LF or CR+LF by scrolling if necessary to handle the
// current cursor position and scroll region settings, in which case it returns
// true. If no special handling is necessary, then it does nothing and returns
// false.
//
// In the false case, the caller should ensure that a carriage return
// and line feed are inserted or that the text is otherwise wrapped.
func (h *windowsAnsiEventHandler) simulateLF(includeCR bool) (bool, error) {
if h.wrapNext {
if err := h.Flush(); err != nil {
return false, err
}
h.clearWrap()
}
pos, info, err := h.getCurrentInfo()
if err != nil {
return false, err
}
sr := h.effectiveSr(info.Window)
if pos.Y == sr.bottom {
// Scrolling is necessary. Let Windows automatically scroll if the scrolling region
// is the full window.
if sr.top == info.Window.Top && sr.bottom == info.Window.Bottom {
if includeCR {
pos.X = 0
h.updatePos(pos)
}
return false, nil
}
// A custom scroll region is active. Scroll the window manually to simulate
// the LF.
if err := h.Flush(); err != nil {
return false, err
}
h.logf("Simulating LF inside scroll region")
if err := h.scrollUp(1); err != nil {
return false, err
}
if includeCR {
pos.X = 0
if err := SetConsoleCursorPosition(h.fd, pos); err != nil {
return false, err
}
}
return true, nil
} else if pos.Y < info.Window.Bottom {
// Let Windows handle the LF.
pos.Y++
if includeCR {
pos.X = 0
}
h.updatePos(pos)
return false, nil
} else {
// The cursor is at the bottom of the screen but outside the scroll
// region. Skip the LF.
h.logf("Simulating LF outside scroll region")
if includeCR {
if err := h.Flush(); err != nil {
return false, err
}
pos.X = 0
if err := SetConsoleCursorPosition(h.fd, pos); err != nil {
return false, err
}
}
return true, nil
}
}
// executeLF executes a LF without a CR.
func (h *windowsAnsiEventHandler) executeLF() error {
handled, err := h.simulateLF(false)
if err != nil {
return err
}
if !handled {
// Windows LF will reset the cursor column position. Write the LF
// and restore the cursor position.
pos, _, err := h.getCurrentInfo()
if err != nil {
return err
}
h.buffer.WriteByte(ansiterm.ANSI_LINE_FEED)
if pos.X != 0 {
if err := h.Flush(); err != nil {
return err
}
h.logf("Resetting cursor position for LF without CR")
if err := SetConsoleCursorPosition(h.fd, pos); err != nil {
return err
}
}
}
return nil
}
func (h *windowsAnsiEventHandler) Print(b byte) error {
if h.wrapNext {
h.buffer.WriteByte(h.marginByte)
h.clearWrap()
if _, err := h.simulateLF(true); err != nil {
return err
}
}
pos, info, err := h.getCurrentInfo()
if err != nil {
return err
}
if pos.X == info.Size.X-1 {
h.wrapNext = true
h.marginByte = b
} else {
pos.X++
h.updatePos(pos)
h.buffer.WriteByte(b)
}
return nil
}
func (h *windowsAnsiEventHandler) Execute(b byte) error {
switch b {
case ansiterm.ANSI_TAB:
h.logf("Execute(TAB)")
// Move to the next tab stop, but preserve auto-wrap if already set.
if !h.wrapNext {
pos, info, err := h.getCurrentInfo()
if err != nil {
return err
}
pos.X = (pos.X + 8) - pos.X%8
if pos.X >= info.Size.X {
pos.X = info.Size.X - 1
}
if err := h.Flush(); err != nil {
return err
}
if err := SetConsoleCursorPosition(h.fd, pos); err != nil {
return err
}
}
return nil
case ansiterm.ANSI_BEL:
h.buffer.WriteByte(ansiterm.ANSI_BEL)
return nil
case ansiterm.ANSI_BACKSPACE:
if h.wrapNext {
if err := h.Flush(); err != nil {
return err
}
h.clearWrap()
}
pos, _, err := h.getCurrentInfo()
if err != nil {
return err
}
if pos.X > 0 {
pos.X--
h.updatePos(pos)
h.buffer.WriteByte(ansiterm.ANSI_BACKSPACE)
}
return nil
case ansiterm.ANSI_VERTICAL_TAB, ansiterm.ANSI_FORM_FEED:
// Treat as true LF.
return h.executeLF()
case ansiterm.ANSI_LINE_FEED:
// Simulate a CR and LF for now since there is no way in go-ansiterm
// to tell if the LF should include CR (and more things break when it's
// missing than when it's incorrectly added).
handled, err := h.simulateLF(true)
if handled || err != nil {
return err
}
return h.buffer.WriteByte(ansiterm.ANSI_LINE_FEED)
case ansiterm.ANSI_CARRIAGE_RETURN:
if h.wrapNext {
if err := h.Flush(); err != nil {
return err
}
h.clearWrap()
}
pos, _, err := h.getCurrentInfo()
if err != nil {
return err
}
if pos.X != 0 {
pos.X = 0
h.updatePos(pos)
h.buffer.WriteByte(ansiterm.ANSI_CARRIAGE_RETURN)
}
return nil
default:
return nil
}
}
func (h *windowsAnsiEventHandler) CUU(param int) error {
if err := h.Flush(); err != nil {
return err
}
h.logf("CUU: [%v]", []string{strconv.Itoa(param)})
h.clearWrap()
return h.moveCursorVertical(-param)
}
func (h *windowsAnsiEventHandler) CUD(param int) error {
if err := h.Flush(); err != nil {
return err
}
h.logf("CUD: [%v]", []string{strconv.Itoa(param)})
h.clearWrap()
return h.moveCursorVertical(param)
}
func (h *windowsAnsiEventHandler) CUF(param int) error {
if err := h.Flush(); err != nil {
return err
}
h.logf("CUF: [%v]", []string{strconv.Itoa(param)})
h.clearWrap()
return h.moveCursorHorizontal(param)
}
func (h *windowsAnsiEventHandler) CUB(param int) error {
if err := h.Flush(); err != nil {
return err
}
h.logf("CUB: [%v]", []string{strconv.Itoa(param)})
h.clearWrap()
return h.moveCursorHorizontal(-param)
}
func (h *windowsAnsiEventHandler) CNL(param int) error {
if err := h.Flush(); err != nil {
return err
}
h.logf("CNL: [%v]", []string{strconv.Itoa(param)})
h.clearWrap()
return h.moveCursorLine(param)
}
func (h *windowsAnsiEventHandler) CPL(param int) error {
if err := h.Flush(); err != nil {
return err
}
h.logf("CPL: [%v]", []string{strconv.Itoa(param)})
h.clearWrap()
return h.moveCursorLine(-param)
}
func (h *windowsAnsiEventHandler) CHA(param int) error {
if err := h.Flush(); err != nil {
return err
}
h.logf("CHA: [%v]", []string{strconv.Itoa(param)})
h.clearWrap()
return h.moveCursorColumn(param)
}
func (h *windowsAnsiEventHandler) VPA(param int) error {
if err := h.Flush(); err != nil {
return err
}
h.logf("VPA: [[%d]]", param)
h.clearWrap()
info, err := GetConsoleScreenBufferInfo(h.fd)
if err != nil {
return err
}
window := h.getCursorWindow(info)
position := info.CursorPosition
position.Y = window.Top + int16(param) - 1
return h.setCursorPosition(position, window)
}
func (h *windowsAnsiEventHandler) CUP(row int, col int) error {
if err := h.Flush(); err != nil {
return err
}
h.logf("CUP: [[%d %d]]", row, col)
h.clearWrap()
info, err := GetConsoleScreenBufferInfo(h.fd)
if err != nil {
return err
}
window := h.getCursorWindow(info)
position := COORD{window.Left + int16(col) - 1, window.Top + int16(row) - 1}
return h.setCursorPosition(position, window)
}
func (h *windowsAnsiEventHandler) HVP(row int, col int) error {
if err := h.Flush(); err != nil {
return err
}
h.logf("HVP: [[%d %d]]", row, col)
h.clearWrap()
return h.CUP(row, col)
}
func (h *windowsAnsiEventHandler) DECTCEM(visible bool) error {
if err := h.Flush(); err != nil {
return err
}
h.logf("DECTCEM: [%v]", []string{strconv.FormatBool(visible)})
h.clearWrap()
return nil
}
func (h *windowsAnsiEventHandler) DECOM(enable bool) error {
if err := h.Flush(); err != nil {
return err
}
h.logf("DECOM: [%v]", []string{strconv.FormatBool(enable)})
h.clearWrap()
h.originMode = enable
return h.CUP(1, 1)
}
func (h *windowsAnsiEventHandler) DECCOLM(use132 bool) error {
if err := h.Flush(); err != nil {
return err
}
h.logf("DECCOLM: [%v]", []string{strconv.FormatBool(use132)})
h.clearWrap()
if err := h.ED(2); err != nil {
return err
}
info, err := GetConsoleScreenBufferInfo(h.fd)
if err != nil {
return err
}
targetWidth := int16(80)
if use132 {
targetWidth = 132
}
if info.Size.X < targetWidth {
if err := SetConsoleScreenBufferSize(h.fd, COORD{targetWidth, info.Size.Y}); err != nil {
h.logf("set buffer failed: %v", err)
return err
}
}
window := info.Window
window.Left = 0
window.Right = targetWidth - 1
if err := SetConsoleWindowInfo(h.fd, true, window); err != nil {
h.logf("set window failed: %v", err)
return err
}
if info.Size.X > targetWidth {
if err := SetConsoleScreenBufferSize(h.fd, COORD{targetWidth, info.Size.Y}); err != nil {
h.logf("set buffer failed: %v", err)
return err
}
}
return SetConsoleCursorPosition(h.fd, COORD{0, 0})
}
func (h *windowsAnsiEventHandler) ED(param int) error {
if err := h.Flush(); err != nil {
return err
}
h.logf("ED: [%v]", []string{strconv.Itoa(param)})
h.clearWrap()
// [J -- Erases from the cursor to the end of the screen, including the cursor position.
// [1J -- Erases from the beginning of the screen to the cursor, including the cursor position.
// [2J -- Erases the complete display. The cursor does not move.
// Notes:
// -- Clearing the entire buffer, versus just the Window, works best for Windows Consoles
info, err := GetConsoleScreenBufferInfo(h.fd)
if err != nil {
return err
}
var start COORD
var end COORD
switch param {
case 0:
start = info.CursorPosition
end = COORD{info.Size.X - 1, info.Size.Y - 1}
case 1:
start = COORD{0, 0}
end = info.CursorPosition
case 2:
start = COORD{0, 0}
end = COORD{info.Size.X - 1, info.Size.Y - 1}
}
err = h.clearRange(h.attributes, start, end)
if err != nil {
return err
}
// If the whole buffer was cleared, move the window to the top while preserving
// the window-relative cursor position.
if param == 2 {
pos := info.CursorPosition
window := info.Window
pos.Y -= window.Top
window.Bottom -= window.Top
window.Top = 0
if err := SetConsoleCursorPosition(h.fd, pos); err != nil {
return err
}
if err := SetConsoleWindowInfo(h.fd, true, window); err != nil {
return err
}
}
return nil
}
func (h *windowsAnsiEventHandler) EL(param int) error {
if err := h.Flush(); err != nil {
return err
}
h.logf("EL: [%v]", strconv.Itoa(param))
h.clearWrap()
// [K -- Erases from the cursor to the end of the line, including the cursor position.
// [1K -- Erases from the beginning of the line to the cursor, including the cursor position.
// [2K -- Erases the complete line.
info, err := GetConsoleScreenBufferInfo(h.fd)
if err != nil {
return err
}
var start COORD
var end COORD
switch param {
case 0:
start = info.CursorPosition
end = COORD{info.Size.X, info.CursorPosition.Y}
case 1:
start = COORD{0, info.CursorPosition.Y}
end = info.CursorPosition
case 2:
start = COORD{0, info.CursorPosition.Y}
end = COORD{info.Size.X, info.CursorPosition.Y}
}
err = h.clearRange(h.attributes, start, end)
if err != nil {
return err
}
return nil
}
func (h *windowsAnsiEventHandler) IL(param int) error {
if err := h.Flush(); err != nil {
return err
}
h.logf("IL: [%v]", strconv.Itoa(param))
h.clearWrap()
return h.insertLines(param)
}
func (h *windowsAnsiEventHandler) DL(param int) error {
if err := h.Flush(); err != nil {
return err
}
h.logf("DL: [%v]", strconv.Itoa(param))
h.clearWrap()
return h.deleteLines(param)
}
func (h *windowsAnsiEventHandler) ICH(param int) error {
if err := h.Flush(); err != nil {
return err
}
h.logf("ICH: [%v]", strconv.Itoa(param))
h.clearWrap()
return h.insertCharacters(param)
}
func (h *windowsAnsiEventHandler) DCH(param int) error {
if err := h.Flush(); err != nil {
return err
}
h.logf("DCH: [%v]", strconv.Itoa(param))
h.clearWrap()
return h.deleteCharacters(param)
}
func (h *windowsAnsiEventHandler) SGR(params []int) error {
if err := h.Flush(); err != nil {
return err
}
strings := []string{}
for _, v := range params {
strings = append(strings, strconv.Itoa(v))
}
h.logf("SGR: [%v]", strings)
if len(params) <= 0 {
h.attributes = h.infoReset.Attributes
h.inverted = false
} else {
for _, attr := range params {
if attr == ansiterm.ANSI_SGR_RESET {
h.attributes = h.infoReset.Attributes
h.inverted = false
continue
}
h.attributes, h.inverted = collectAnsiIntoWindowsAttributes(h.attributes, h.inverted, h.infoReset.Attributes, int16(attr))
}
}
attributes := h.attributes
if h.inverted {
attributes = invertAttributes(attributes)
}
err := SetConsoleTextAttribute(h.fd, attributes)
if err != nil {
return err
}
return nil
}
func (h *windowsAnsiEventHandler) SU(param int) error {
if err := h.Flush(); err != nil {
return err
}
h.logf("SU: [%v]", []string{strconv.Itoa(param)})
h.clearWrap()
return h.scrollUp(param)
}
func (h *windowsAnsiEventHandler) SD(param int) error {
if err := h.Flush(); err != nil {
return err
}
h.logf("SD: [%v]", []string{strconv.Itoa(param)})
h.clearWrap()
return h.scrollDown(param)
}
func (h *windowsAnsiEventHandler) DA(params []string) error {
h.logf("DA: [%v]", params)
// DA cannot be implemented because it must send data on the VT100 input stream,
// which is not available to go-ansiterm.
return nil
}
func (h *windowsAnsiEventHandler) DECSTBM(top int, bottom int) error {
if err := h.Flush(); err != nil {
return err
}
h.logf("DECSTBM: [%d, %d]", top, bottom)
// Windows is 0 indexed, Linux is 1 indexed
h.sr.top = int16(top - 1)
h.sr.bottom = int16(bottom - 1)
// This command also moves the cursor to the origin.
h.clearWrap()
return h.CUP(1, 1)
}
func (h *windowsAnsiEventHandler) RI() error {
if err := h.Flush(); err != nil {
return err
}
h.logf("RI: []")
h.clearWrap()
info, err := GetConsoleScreenBufferInfo(h.fd)
if err != nil {
return err
}
sr := h.effectiveSr(info.Window)
if info.CursorPosition.Y == sr.top {
return h.scrollDown(1)
}
return h.moveCursorVertical(-1)
}
func (h *windowsAnsiEventHandler) IND() error {
h.logf("IND: []")
return h.executeLF()
}
func (h *windowsAnsiEventHandler) Flush() error {
h.curInfo = nil
if h.buffer.Len() > 0 {
h.logf("Flush: [%s]", h.buffer.Bytes())
if _, err := h.buffer.WriteTo(h.file); err != nil {
return err
}
}
if h.wrapNext && !h.drewMarginByte {
h.logf("Flush: drawing margin byte '%c'", h.marginByte)
info, err := GetConsoleScreenBufferInfo(h.fd)
if err != nil {
return err
}
charInfo := []CHAR_INFO{{UnicodeChar: uint16(h.marginByte), Attributes: info.Attributes}}
size := COORD{1, 1}
position := COORD{0, 0}
region := SMALL_RECT{Left: info.CursorPosition.X, Top: info.CursorPosition.Y, Right: info.CursorPosition.X, Bottom: info.CursorPosition.Y}
if err := WriteConsoleOutput(h.fd, charInfo, size, position, &region); err != nil {
return err
}
h.drewMarginByte = true
}
return nil
}
// cacheConsoleInfo ensures that the current console screen information has been queried
// since the last call to Flush(). It must be called before accessing h.curInfo or h.curPos.
func (h *windowsAnsiEventHandler) getCurrentInfo() (COORD, *CONSOLE_SCREEN_BUFFER_INFO, error) {
if h.curInfo == nil {
info, err := GetConsoleScreenBufferInfo(h.fd)
if err != nil {
return COORD{}, nil, err
}
h.curInfo = info
h.curPos = info.CursorPosition
}
return h.curPos, h.curInfo, nil
}
func (h *windowsAnsiEventHandler) updatePos(pos COORD) {
if h.curInfo == nil {
panic("failed to call getCurrentInfo before calling updatePos")
}
h.curPos = pos
}
// clearWrap clears the state where the cursor is in the margin
// waiting for the next character before wrapping the line. This must
// be done before most operations that act on the cursor.
func (h *windowsAnsiEventHandler) clearWrap() {
h.wrapNext = false
h.drewMarginByte = false
}

14
vendor/github.com/BurntSushi/toml/COPYING generated vendored Normal file
View File

@ -0,0 +1,14 @@
DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
Version 2, December 2004
Copyright (C) 2004 Sam Hocevar <sam@hocevar.net>
Everyone is permitted to copy and distribute verbatim or modified
copies of this license document, and changing it is allowed as long
as the name is changed.
DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. You just DO WHAT THE FUCK YOU WANT TO.

14
vendor/github.com/BurntSushi/toml/cmd/toml-test-decoder/COPYING generated vendored Normal file
View File

@ -0,0 +1,14 @@
DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
Version 2, December 2004
Copyright (C) 2004 Sam Hocevar <sam@hocevar.net>
Everyone is permitted to copy and distribute verbatim or modified
copies of this license document, and changing it is allowed as long
as the name is changed.
DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. You just DO WHAT THE FUCK YOU WANT TO.

14
vendor/github.com/BurntSushi/toml/cmd/toml-test-encoder/COPYING generated vendored Normal file
View File

@ -0,0 +1,14 @@
DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
Version 2, December 2004
Copyright (C) 2004 Sam Hocevar <sam@hocevar.net>
Everyone is permitted to copy and distribute verbatim or modified
copies of this license document, and changing it is allowed as long
as the name is changed.
DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. You just DO WHAT THE FUCK YOU WANT TO.

14
vendor/github.com/BurntSushi/toml/cmd/tomlv/COPYING generated vendored Normal file
View File

@ -0,0 +1,14 @@
DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
Version 2, December 2004
Copyright (C) 2004 Sam Hocevar <sam@hocevar.net>
Everyone is permitted to copy and distribute verbatim or modified
copies of this license document, and changing it is allowed as long
as the name is changed.
DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. You just DO WHAT THE FUCK YOU WANT TO.

509
vendor/github.com/BurntSushi/toml/decode.go generated vendored Normal file
View File

@ -0,0 +1,509 @@
package toml
import (
"fmt"
"io"
"io/ioutil"
"math"
"reflect"
"strings"
"time"
)
func e(format string, args ...interface{}) error {
return fmt.Errorf("toml: "+format, args...)
}
// Unmarshaler is the interface implemented by objects that can unmarshal a
// TOML description of themselves.
type Unmarshaler interface {
UnmarshalTOML(interface{}) error
}
// Unmarshal decodes the contents of `p` in TOML format into a pointer `v`.
func Unmarshal(p []byte, v interface{}) error {
_, err := Decode(string(p), v)
return err
}
// Primitive is a TOML value that hasn't been decoded into a Go value.
// When using the various `Decode*` functions, the type `Primitive` may
// be given to any value, and its decoding will be delayed.
//
// A `Primitive` value can be decoded using the `PrimitiveDecode` function.
//
// The underlying representation of a `Primitive` value is subject to change.
// Do not rely on it.
//
// N.B. Primitive values are still parsed, so using them will only avoid
// the overhead of reflection. They can be useful when you don't know the
// exact type of TOML data until run time.
type Primitive struct {
undecoded interface{}
context Key
}
// DEPRECATED!
//
// Use MetaData.PrimitiveDecode instead.
func PrimitiveDecode(primValue Primitive, v interface{}) error {
md := MetaData{decoded: make(map[string]bool)}
return md.unify(primValue.undecoded, rvalue(v))
}
// PrimitiveDecode is just like the other `Decode*` functions, except it
// decodes a TOML value that has already been parsed. Valid primitive values
// can *only* be obtained from values filled by the decoder functions,
// including this method. (i.e., `v` may contain more `Primitive`
// values.)
//
// Meta data for primitive values is included in the meta data returned by
// the `Decode*` functions with one exception: keys returned by the Undecoded
// method will only reflect keys that were decoded. Namely, any keys hidden
// behind a Primitive will be considered undecoded. Executing this method will
// update the undecoded keys in the meta data. (See the example.)
func (md *MetaData) PrimitiveDecode(primValue Primitive, v interface{}) error {
md.context = primValue.context
defer func() { md.context = nil }()
return md.unify(primValue.undecoded, rvalue(v))
}
// Decode will decode the contents of `data` in TOML format into a pointer
// `v`.
//
// TOML hashes correspond to Go structs or maps. (Dealer's choice. They can be
// used interchangeably.)
//
// TOML arrays of tables correspond to either a slice of structs or a slice
// of maps.
//
// TOML datetimes correspond to Go `time.Time` values.
//
// All other TOML types (float, string, int, bool and array) correspond
// to the obvious Go types.
//
// An exception to the above rules is if a type implements the
// encoding.TextUnmarshaler interface. In this case, any primitive TOML value
// (floats, strings, integers, booleans and datetimes) will be converted to
// a byte string and given to the value's UnmarshalText method. See the
// Unmarshaler example for a demonstration with time duration strings.
//
// Key mapping
//
// TOML keys can map to either keys in a Go map or field names in a Go
// struct. The special `toml` struct tag may be used to map TOML keys to
// struct fields that don't match the key name exactly. (See the example.)
// A case insensitive match to struct names will be tried if an exact match
// can't be found.
//
// The mapping between TOML values and Go values is loose. That is, there
// may exist TOML values that cannot be placed into your representation, and
// there may be parts of your representation that do not correspond to
// TOML values. This loose mapping can be made stricter by using the IsDefined
// and/or Undecoded methods on the MetaData returned.
//
// This decoder will not handle cyclic types. If a cyclic type is passed,
// `Decode` will not terminate.
func Decode(data string, v interface{}) (MetaData, error) {
rv := reflect.ValueOf(v)
if rv.Kind() != reflect.Ptr {
return MetaData{}, e("Decode of non-pointer %s", reflect.TypeOf(v))
}
if rv.IsNil() {
return MetaData{}, e("Decode of nil %s", reflect.TypeOf(v))
}
p, err := parse(data)
if err != nil {
return MetaData{}, err
}
md := MetaData{
p.mapping, p.types, p.ordered,
make(map[string]bool, len(p.ordered)), nil,
}
return md, md.unify(p.mapping, indirect(rv))
}
// DecodeFile is just like Decode, except it will automatically read the
// contents of the file at `fpath` and decode it for you.
func DecodeFile(fpath string, v interface{}) (MetaData, error) {
bs, err := ioutil.ReadFile(fpath)
if err != nil {
return MetaData{}, err
}
return Decode(string(bs), v)
}
// DecodeReader is just like Decode, except it will consume all bytes
// from the reader and decode it for you.
func DecodeReader(r io.Reader, v interface{}) (MetaData, error) {
bs, err := ioutil.ReadAll(r)
if err != nil {
return MetaData{}, err
}
return Decode(string(bs), v)
}
// unify performs a sort of type unification based on the structure of `rv`,
// which is the client representation.
//
// Any type mismatch produces an error. Finding a type that we don't know
// how to handle produces an unsupported type error.
func (md *MetaData) unify(data interface{}, rv reflect.Value) error {
// Special case. Look for a `Primitive` value.
if rv.Type() == reflect.TypeOf((*Primitive)(nil)).Elem() {
// Save the undecoded data and the key context into the primitive
// value.
context := make(Key, len(md.context))
copy(context, md.context)
rv.Set(reflect.ValueOf(Primitive{
undecoded: data,
context: context,
}))
return nil
}
// Special case. Unmarshaler Interface support.
if rv.CanAddr() {
if v, ok := rv.Addr().Interface().(Unmarshaler); ok {
return v.UnmarshalTOML(data)
}
}
// Special case. Handle time.Time values specifically.
// TODO: Remove this code when we decide to drop support for Go 1.1.
// This isn't necessary in Go 1.2 because time.Time satisfies the encoding
// interfaces.
if rv.Type().AssignableTo(rvalue(time.Time{}).Type()) {
return md.unifyDatetime(data, rv)
}
// Special case. Look for a value satisfying the TextUnmarshaler interface.
if v, ok := rv.Interface().(TextUnmarshaler); ok {
return md.unifyText(data, v)
}
// BUG(burntsushi)
// The behavior here is incorrect whenever a Go type satisfies the
// encoding.TextUnmarshaler interface but also corresponds to a TOML
// hash or array. In particular, the unmarshaler should only be applied
// to primitive TOML values. But at this point, it will be applied to
// all kinds of values and produce an incorrect error whenever those values
// are hashes or arrays (including arrays of tables).
k := rv.Kind()
// laziness
if k >= reflect.Int && k <= reflect.Uint64 {
return md.unifyInt(data, rv)
}
switch k {
case reflect.Ptr:
elem := reflect.New(rv.Type().Elem())
err := md.unify(data, reflect.Indirect(elem))
if err != nil {
return err
}
rv.Set(elem)
return nil
case reflect.Struct:
return md.unifyStruct(data, rv)
case reflect.Map:
return md.unifyMap(data, rv)
case reflect.Array:
return md.unifyArray(data, rv)
case reflect.Slice:
return md.unifySlice(data, rv)
case reflect.String:
return md.unifyString(data, rv)
case reflect.Bool:
return md.unifyBool(data, rv)
case reflect.Interface:
// we only support empty interfaces.
if rv.NumMethod() > 0 {
return e("unsupported type %s", rv.Type())
}
return md.unifyAnything(data, rv)
case reflect.Float32:
fallthrough
case reflect.Float64:
return md.unifyFloat64(data, rv)
}
return e("unsupported type %s", rv.Kind())
}
func (md *MetaData) unifyStruct(mapping interface{}, rv reflect.Value) error {
tmap, ok := mapping.(map[string]interface{})
if !ok {
if mapping == nil {
return nil
}
return e("type mismatch for %s: expected table but found %T",
rv.Type().String(), mapping)
}
for key, datum := range tmap {
var f *field
fields := cachedTypeFields(rv.Type())
for i := range fields {
ff := &fields[i]
if ff.name == key {
f = ff
break
}
if f == nil && strings.EqualFold(ff.name, key) {
f = ff
}
}
if f != nil {
subv := rv
for _, i := range f.index {
subv = indirect(subv.Field(i))
}
if isUnifiable(subv) {
md.decoded[md.context.add(key).String()] = true
md.context = append(md.context, key)
if err := md.unify(datum, subv); err != nil {
return err
}
md.context = md.context[0 : len(md.context)-1]
} else if f.name != "" {
// Bad user! No soup for you!
return e("cannot write unexported field %s.%s",
rv.Type().String(), f.name)
}
}
}
return nil
}
func (md *MetaData) unifyMap(mapping interface{}, rv reflect.Value) error {
tmap, ok := mapping.(map[string]interface{})
if !ok {
if tmap == nil {
return nil
}
return badtype("map", mapping)
}
if rv.IsNil() {
rv.Set(reflect.MakeMap(rv.Type()))
}
for k, v := range tmap {
md.decoded[md.context.add(k).String()] = true
md.context = append(md.context, k)
rvkey := indirect(reflect.New(rv.Type().Key()))
rvval := reflect.Indirect(reflect.New(rv.Type().Elem()))
if err := md.unify(v, rvval); err != nil {
return err
}
md.context = md.context[0 : len(md.context)-1]
rvkey.SetString(k)
rv.SetMapIndex(rvkey, rvval)
}
return nil
}
func (md *MetaData) unifyArray(data interface{}, rv reflect.Value) error {
datav := reflect.ValueOf(data)
if datav.Kind() != reflect.Slice {
if !datav.IsValid() {
return nil
}
return badtype("slice", data)
}
sliceLen := datav.Len()
if sliceLen != rv.Len() {
return e("expected array length %d; got TOML array of length %d",
rv.Len(), sliceLen)
}
return md.unifySliceArray(datav, rv)
}
func (md *MetaData) unifySlice(data interface{}, rv reflect.Value) error {
datav := reflect.ValueOf(data)
if datav.Kind() != reflect.Slice {
if !datav.IsValid() {
return nil
}
return badtype("slice", data)
}
n := datav.Len()
if rv.IsNil() || rv.Cap() < n {
rv.Set(reflect.MakeSlice(rv.Type(), n, n))
}
rv.SetLen(n)
return md.unifySliceArray(datav, rv)
}
func (md *MetaData) unifySliceArray(data, rv reflect.Value) error {
sliceLen := data.Len()
for i := 0; i < sliceLen; i++ {
v := data.Index(i).Interface()
sliceval := indirect(rv.Index(i))
if err := md.unify(v, sliceval); err != nil {
return err
}
}
return nil
}
func (md *MetaData) unifyDatetime(data interface{}, rv reflect.Value) error {
if _, ok := data.(time.Time); ok {
rv.Set(reflect.ValueOf(data))
return nil
}
return badtype("time.Time", data)
}
func (md *MetaData) unifyString(data interface{}, rv reflect.Value) error {
if s, ok := data.(string); ok {
rv.SetString(s)
return nil
}
return badtype("string", data)
}
func (md *MetaData) unifyFloat64(data interface{}, rv reflect.Value) error {
if num, ok := data.(float64); ok {
switch rv.Kind() {
case reflect.Float32:
fallthrough
case reflect.Float64:
rv.SetFloat(num)
default:
panic("bug")
}
return nil
}
return badtype("float", data)
}
func (md *MetaData) unifyInt(data interface{}, rv reflect.Value) error {
if num, ok := data.(int64); ok {
if rv.Kind() >= reflect.Int && rv.Kind() <= reflect.Int64 {
switch rv.Kind() {
case reflect.Int, reflect.Int64:
// No bounds checking necessary.
case reflect.Int8:
if num < math.MinInt8 || num > math.MaxInt8 {
return e("value %d is out of range for int8", num)
}
case reflect.Int16:
if num < math.MinInt16 || num > math.MaxInt16 {
return e("value %d is out of range for int16", num)
}
case reflect.Int32:
if num < math.MinInt32 || num > math.MaxInt32 {
return e("value %d is out of range for int32", num)
}
}
rv.SetInt(num)
} else if rv.Kind() >= reflect.Uint && rv.Kind() <= reflect.Uint64 {
unum := uint64(num)
switch rv.Kind() {
case reflect.Uint, reflect.Uint64:
// No bounds checking necessary.
case reflect.Uint8:
if num < 0 || unum > math.MaxUint8 {
return e("value %d is out of range for uint8", num)
}
case reflect.Uint16:
if num < 0 || unum > math.MaxUint16 {
return e("value %d is out of range for uint16", num)
}
case reflect.Uint32:
if num < 0 || unum > math.MaxUint32 {
return e("value %d is out of range for uint32", num)
}
}
rv.SetUint(unum)
} else {
panic("unreachable")
}
return nil
}
return badtype("integer", data)
}
func (md *MetaData) unifyBool(data interface{}, rv reflect.Value) error {
if b, ok := data.(bool); ok {
rv.SetBool(b)
return nil
}
return badtype("boolean", data)
}
func (md *MetaData) unifyAnything(data interface{}, rv reflect.Value) error {
rv.Set(reflect.ValueOf(data))
return nil
}
func (md *MetaData) unifyText(data interface{}, v TextUnmarshaler) error {
var s string
switch sdata := data.(type) {
case TextMarshaler:
text, err := sdata.MarshalText()
if err != nil {
return err
}
s = string(text)
case fmt.Stringer:
s = sdata.String()
case string:
s = sdata
case bool:
s = fmt.Sprintf("%v", sdata)
case int64:
s = fmt.Sprintf("%d", sdata)
case float64:
s = fmt.Sprintf("%f", sdata)
default:
return badtype("primitive (string-like)", data)
}
if err := v.UnmarshalText([]byte(s)); err != nil {
return err
}
return nil
}
// rvalue returns a reflect.Value of `v`. All pointers are resolved.
func rvalue(v interface{}) reflect.Value {
return indirect(reflect.ValueOf(v))
}
// indirect returns the value pointed to by a pointer.
// Pointers are followed until the value is not a pointer.
// New values are allocated for each nil pointer.
//
// An exception to this rule is if the value satisfies an interface of
// interest to us (like encoding.TextUnmarshaler).
func indirect(v reflect.Value) reflect.Value {
if v.Kind() != reflect.Ptr {
if v.CanSet() {
pv := v.Addr()
if _, ok := pv.Interface().(TextUnmarshaler); ok {
return pv
}
}
return v
}
if v.IsNil() {
v.Set(reflect.New(v.Type().Elem()))
}
return indirect(reflect.Indirect(v))
}
func isUnifiable(rv reflect.Value) bool {
if rv.CanSet() {
return true
}
if _, ok := rv.Interface().(TextUnmarshaler); ok {
return true
}
return false
}
func badtype(expected string, data interface{}) error {
return e("cannot load TOML value of type %T into a Go %s", data, expected)
}

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package toml
import "strings"
// MetaData allows access to meta information about TOML data that may not
// be inferrable via reflection. In particular, whether a key has been defined
// and the TOML type of a key.
type MetaData struct {
mapping map[string]interface{}
types map[string]tomlType
keys []Key
decoded map[string]bool
context Key // Used only during decoding.
}
// IsDefined returns true if the key given exists in the TOML data. The key
// should be specified hierarchially. e.g.,
//
// // access the TOML key 'a.b.c'
// IsDefined("a", "b", "c")
//
// IsDefined will return false if an empty key given. Keys are case sensitive.
func (md *MetaData) IsDefined(key ...string) bool {
if len(key) == 0 {
return false
}
var hash map[string]interface{}
var ok bool
var hashOrVal interface{} = md.mapping
for _, k := range key {
if hash, ok = hashOrVal.(map[string]interface{}); !ok {
return false
}
if hashOrVal, ok = hash[k]; !ok {
return false
}
}
return true
}
// Type returns a string representation of the type of the key specified.
//
// Type will return the empty string if given an empty key or a key that
// does not exist. Keys are case sensitive.
func (md *MetaData) Type(key ...string) string {
fullkey := strings.Join(key, ".")
if typ, ok := md.types[fullkey]; ok {
return typ.typeString()
}
return ""
}
// Key is the type of any TOML key, including key groups. Use (MetaData).Keys
// to get values of this type.
type Key []string
func (k Key) String() string {
return strings.Join(k, ".")
}
func (k Key) maybeQuotedAll() string {
var ss []string
for i := range k {
ss = append(ss, k.maybeQuoted(i))
}
return strings.Join(ss, ".")
}
func (k Key) maybeQuoted(i int) string {
quote := false
for _, c := range k[i] {
if !isBareKeyChar(c) {
quote = true
break
}
}
if quote {
return "\"" + strings.Replace(k[i], "\"", "\\\"", -1) + "\""
}
return k[i]
}
func (k Key) add(piece string) Key {
newKey := make(Key, len(k)+1)
copy(newKey, k)
newKey[len(k)] = piece
return newKey
}
// Keys returns a slice of every key in the TOML data, including key groups.
// Each key is itself a slice, where the first element is the top of the
// hierarchy and the last is the most specific.
//
// The list will have the same order as the keys appeared in the TOML data.
//
// All keys returned are non-empty.
func (md *MetaData) Keys() []Key {
return md.keys
}
// Undecoded returns all keys that have not been decoded in the order in which
// they appear in the original TOML document.
//
// This includes keys that haven't been decoded because of a Primitive value.
// Once the Primitive value is decoded, the keys will be considered decoded.
//
// Also note that decoding into an empty interface will result in no decoding,
// and so no keys will be considered decoded.
//
// In this sense, the Undecoded keys correspond to keys in the TOML document
// that do not have a concrete type in your representation.
func (md *MetaData) Undecoded() []Key {
undecoded := make([]Key, 0, len(md.keys))
for _, key := range md.keys {
if !md.decoded[key.String()] {
undecoded = append(undecoded, key)
}
}
return undecoded
}

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/*
Package toml provides facilities for decoding and encoding TOML configuration
files via reflection. There is also support for delaying decoding with
the Primitive type, and querying the set of keys in a TOML document with the
MetaData type.
The specification implemented: https://github.com/toml-lang/toml
The sub-command github.com/BurntSushi/toml/cmd/tomlv can be used to verify
whether a file is a valid TOML document. It can also be used to print the
type of each key in a TOML document.
Testing
There are two important types of tests used for this package. The first is
contained inside '*_test.go' files and uses the standard Go unit testing
framework. These tests are primarily devoted to holistically testing the
decoder and encoder.
The second type of testing is used to verify the implementation's adherence
to the TOML specification. These tests have been factored into their own
project: https://github.com/BurntSushi/toml-test
The reason the tests are in a separate project is so that they can be used by
any implementation of TOML. Namely, it is language agnostic.
*/
package toml

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package toml
import (
"bufio"
"errors"
"fmt"
"io"
"reflect"
"sort"
"strconv"
"strings"
"time"
)
type tomlEncodeError struct{ error }
var (
errArrayMixedElementTypes = errors.New(
"toml: cannot encode array with mixed element types")
errArrayNilElement = errors.New(
"toml: cannot encode array with nil element")
errNonString = errors.New(
"toml: cannot encode a map with non-string key type")
errAnonNonStruct = errors.New(
"toml: cannot encode an anonymous field that is not a struct")
errArrayNoTable = errors.New(
"toml: TOML array element cannot contain a table")
errNoKey = errors.New(
"toml: top-level values must be Go maps or structs")
errAnything = errors.New("") // used in testing
)
var quotedReplacer = strings.NewReplacer(
"\t", "\\t",
"\n", "\\n",
"\r", "\\r",
"\"", "\\\"",
"\\", "\\\\",
)
// Encoder controls the encoding of Go values to a TOML document to some
// io.Writer.
//
// The indentation level can be controlled with the Indent field.
type Encoder struct {
// A single indentation level. By default it is two spaces.
Indent string
// hasWritten is whether we have written any output to w yet.
hasWritten bool
w *bufio.Writer
}
// NewEncoder returns a TOML encoder that encodes Go values to the io.Writer
// given. By default, a single indentation level is 2 spaces.
func NewEncoder(w io.Writer) *Encoder {
return &Encoder{
w: bufio.NewWriter(w),
Indent: " ",
}
}
// Encode writes a TOML representation of the Go value to the underlying
// io.Writer. If the value given cannot be encoded to a valid TOML document,
// then an error is returned.
//
// The mapping between Go values and TOML values should be precisely the same
// as for the Decode* functions. Similarly, the TextMarshaler interface is
// supported by encoding the resulting bytes as strings. (If you want to write
// arbitrary binary data then you will need to use something like base64 since
// TOML does not have any binary types.)
//
// When encoding TOML hashes (i.e., Go maps or structs), keys without any
// sub-hashes are encoded first.
//
// If a Go map is encoded, then its keys are sorted alphabetically for
// deterministic output. More control over this behavior may be provided if
// there is demand for it.
//
// Encoding Go values without a corresponding TOML representation---like map
// types with non-string keys---will cause an error to be returned. Similarly
// for mixed arrays/slices, arrays/slices with nil elements, embedded
// non-struct types and nested slices containing maps or structs.
// (e.g., [][]map[string]string is not allowed but []map[string]string is OK
// and so is []map[string][]string.)
func (enc *Encoder) Encode(v interface{}) error {
rv := eindirect(reflect.ValueOf(v))
if err := enc.safeEncode(Key([]string{}), rv); err != nil {
return err
}
return enc.w.Flush()
}
func (enc *Encoder) safeEncode(key Key, rv reflect.Value) (err error) {
defer func() {
if r := recover(); r != nil {
if terr, ok := r.(tomlEncodeError); ok {
err = terr.error
return
}
panic(r)
}
}()
enc.encode(key, rv)
return nil
}
func (enc *Encoder) encode(key Key, rv reflect.Value) {
// Special case. Time needs to be in ISO8601 format.
// Special case. If we can marshal the type to text, then we used that.
// Basically, this prevents the encoder for handling these types as
// generic structs (or whatever the underlying type of a TextMarshaler is).
switch rv.Interface().(type) {
case time.Time, TextMarshaler:
enc.keyEqElement(key, rv)
return
}
k := rv.Kind()
switch k {
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32,
reflect.Int64,
reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32,
reflect.Uint64,
reflect.Float32, reflect.Float64, reflect.String, reflect.Bool:
enc.keyEqElement(key, rv)
case reflect.Array, reflect.Slice:
if typeEqual(tomlArrayHash, tomlTypeOfGo(rv)) {
enc.eArrayOfTables(key, rv)
} else {
enc.keyEqElement(key, rv)
}
case reflect.Interface:
if rv.IsNil() {
return
}
enc.encode(key, rv.Elem())
case reflect.Map:
if rv.IsNil() {
return
}
enc.eTable(key, rv)
case reflect.Ptr:
if rv.IsNil() {
return
}
enc.encode(key, rv.Elem())
case reflect.Struct:
enc.eTable(key, rv)
default:
panic(e("unsupported type for key '%s': %s", key, k))
}
}
// eElement encodes any value that can be an array element (primitives and
// arrays).
func (enc *Encoder) eElement(rv reflect.Value) {
switch v := rv.Interface().(type) {
case time.Time:
// Special case time.Time as a primitive. Has to come before
// TextMarshaler below because time.Time implements
// encoding.TextMarshaler, but we need to always use UTC.
enc.wf(v.UTC().Format("2006-01-02T15:04:05Z"))
return
case TextMarshaler:
// Special case. Use text marshaler if it's available for this value.
if s, err := v.MarshalText(); err != nil {
encPanic(err)
} else {
enc.writeQuoted(string(s))
}
return
}
switch rv.Kind() {
case reflect.Bool:
enc.wf(strconv.FormatBool(rv.Bool()))
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32,
reflect.Int64:
enc.wf(strconv.FormatInt(rv.Int(), 10))
case reflect.Uint, reflect.Uint8, reflect.Uint16,
reflect.Uint32, reflect.Uint64:
enc.wf(strconv.FormatUint(rv.Uint(), 10))
case reflect.Float32:
enc.wf(floatAddDecimal(strconv.FormatFloat(rv.Float(), 'f', -1, 32)))
case reflect.Float64:
enc.wf(floatAddDecimal(strconv.FormatFloat(rv.Float(), 'f', -1, 64)))
case reflect.Array, reflect.Slice:
enc.eArrayOrSliceElement(rv)
case reflect.Interface:
enc.eElement(rv.Elem())
case reflect.String:
enc.writeQuoted(rv.String())
default:
panic(e("unexpected primitive type: %s", rv.Kind()))
}
}
// By the TOML spec, all floats must have a decimal with at least one
// number on either side.
func floatAddDecimal(fstr string) string {
if !strings.Contains(fstr, ".") {
return fstr + ".0"
}
return fstr
}
func (enc *Encoder) writeQuoted(s string) {
enc.wf("\"%s\"", quotedReplacer.Replace(s))
}
func (enc *Encoder) eArrayOrSliceElement(rv reflect.Value) {
length := rv.Len()
enc.wf("[")
for i := 0; i < length; i++ {
elem := rv.Index(i)
enc.eElement(elem)
if i != length-1 {
enc.wf(", ")
}
}
enc.wf("]")
}
func (enc *Encoder) eArrayOfTables(key Key, rv reflect.Value) {
if len(key) == 0 {
encPanic(errNoKey)
}
for i := 0; i < rv.Len(); i++ {
trv := rv.Index(i)
if isNil(trv) {
continue
}
panicIfInvalidKey(key)
enc.newline()
enc.wf("%s[[%s]]", enc.indentStr(key), key.maybeQuotedAll())
enc.newline()
enc.eMapOrStruct(key, trv)
}
}
func (enc *Encoder) eTable(key Key, rv reflect.Value) {
panicIfInvalidKey(key)
if len(key) == 1 {
// Output an extra newline between top-level tables.
// (The newline isn't written if nothing else has been written though.)
enc.newline()
}
if len(key) > 0 {
enc.wf("%s[%s]", enc.indentStr(key), key.maybeQuotedAll())
enc.newline()
}
enc.eMapOrStruct(key, rv)
}
func (enc *Encoder) eMapOrStruct(key Key, rv reflect.Value) {
switch rv := eindirect(rv); rv.Kind() {
case reflect.Map:
enc.eMap(key, rv)
case reflect.Struct:
enc.eStruct(key, rv)
default:
panic("eTable: unhandled reflect.Value Kind: " + rv.Kind().String())
}
}
func (enc *Encoder) eMap(key Key, rv reflect.Value) {
rt := rv.Type()
if rt.Key().Kind() != reflect.String {
encPanic(errNonString)
}
// Sort keys so that we have deterministic output. And write keys directly
// underneath this key first, before writing sub-structs or sub-maps.
var mapKeysDirect, mapKeysSub []string
for _, mapKey := range rv.MapKeys() {
k := mapKey.String()
if typeIsHash(tomlTypeOfGo(rv.MapIndex(mapKey))) {
mapKeysSub = append(mapKeysSub, k)
} else {
mapKeysDirect = append(mapKeysDirect, k)
}
}
var writeMapKeys = func(mapKeys []string) {
sort.Strings(mapKeys)
for _, mapKey := range mapKeys {
mrv := rv.MapIndex(reflect.ValueOf(mapKey))
if isNil(mrv) {
// Don't write anything for nil fields.
continue
}
enc.encode(key.add(mapKey), mrv)
}
}
writeMapKeys(mapKeysDirect)
writeMapKeys(mapKeysSub)
}
func (enc *Encoder) eStruct(key Key, rv reflect.Value) {
// Write keys for fields directly under this key first, because if we write
// a field that creates a new table, then all keys under it will be in that
// table (not the one we're writing here).
rt := rv.Type()
var fieldsDirect, fieldsSub [][]int
var addFields func(rt reflect.Type, rv reflect.Value, start []int)
addFields = func(rt reflect.Type, rv reflect.Value, start []int) {
for i := 0; i < rt.NumField(); i++ {
f := rt.Field(i)
// skip unexported fields
if f.PkgPath != "" && !f.Anonymous {
continue
}
frv := rv.Field(i)
if f.Anonymous {
t := f.Type
switch t.Kind() {
case reflect.Struct:
// Treat anonymous struct fields with
// tag names as though they are not
// anonymous, like encoding/json does.
if getOptions(f.Tag).name == "" {
addFields(t, frv, f.Index)
continue
}
case reflect.Ptr:
if t.Elem().Kind() == reflect.Struct &&
getOptions(f.Tag).name == "" {
if !frv.IsNil() {
addFields(t.Elem(), frv.Elem(), f.Index)
}
continue
}
// Fall through to the normal field encoding logic below
// for non-struct anonymous fields.
}
}
if typeIsHash(tomlTypeOfGo(frv)) {
fieldsSub = append(fieldsSub, append(start, f.Index...))
} else {
fieldsDirect = append(fieldsDirect, append(start, f.Index...))
}
}
}
addFields(rt, rv, nil)
var writeFields = func(fields [][]int) {
for _, fieldIndex := range fields {
sft := rt.FieldByIndex(fieldIndex)
sf := rv.FieldByIndex(fieldIndex)
if isNil(sf) {
// Don't write anything for nil fields.
continue
}
opts := getOptions(sft.Tag)
if opts.skip {
continue
}
keyName := sft.Name
if opts.name != "" {
keyName = opts.name
}
if opts.omitempty && isEmpty(sf) {
continue
}
if opts.omitzero && isZero(sf) {
continue
}
enc.encode(key.add(keyName), sf)
}
}
writeFields(fieldsDirect)
writeFields(fieldsSub)
}
// tomlTypeName returns the TOML type name of the Go value's type. It is
// used to determine whether the types of array elements are mixed (which is
// forbidden). If the Go value is nil, then it is illegal for it to be an array
// element, and valueIsNil is returned as true.
// Returns the TOML type of a Go value. The type may be `nil`, which means
// no concrete TOML type could be found.
func tomlTypeOfGo(rv reflect.Value) tomlType {
if isNil(rv) || !rv.IsValid() {
return nil
}
switch rv.Kind() {
case reflect.Bool:
return tomlBool
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32,
reflect.Int64,
reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32,
reflect.Uint64:
return tomlInteger
case reflect.Float32, reflect.Float64:
return tomlFloat
case reflect.Array, reflect.Slice:
if typeEqual(tomlHash, tomlArrayType(rv)) {
return tomlArrayHash
}
return tomlArray
case reflect.Ptr, reflect.Interface:
return tomlTypeOfGo(rv.Elem())
case reflect.String:
return tomlString
case reflect.Map:
return tomlHash
case reflect.Struct:
switch rv.Interface().(type) {
case time.Time:
return tomlDatetime
case TextMarshaler:
return tomlString
default:
return tomlHash
}
default:
panic("unexpected reflect.Kind: " + rv.Kind().String())
}
}
// tomlArrayType returns the element type of a TOML array. The type returned
// may be nil if it cannot be determined (e.g., a nil slice or a zero length
// slize). This function may also panic if it finds a type that cannot be
// expressed in TOML (such as nil elements, heterogeneous arrays or directly
// nested arrays of tables).
func tomlArrayType(rv reflect.Value) tomlType {
if isNil(rv) || !rv.IsValid() || rv.Len() == 0 {
return nil
}
firstType := tomlTypeOfGo(rv.Index(0))
if firstType == nil {
encPanic(errArrayNilElement)
}
rvlen := rv.Len()
for i := 1; i < rvlen; i++ {
elem := rv.Index(i)
switch elemType := tomlTypeOfGo(elem); {
case elemType == nil:
encPanic(errArrayNilElement)
case !typeEqual(firstType, elemType):
encPanic(errArrayMixedElementTypes)
}
}
// If we have a nested array, then we must make sure that the nested
// array contains ONLY primitives.
// This checks arbitrarily nested arrays.
if typeEqual(firstType, tomlArray) || typeEqual(firstType, tomlArrayHash) {
nest := tomlArrayType(eindirect(rv.Index(0)))
if typeEqual(nest, tomlHash) || typeEqual(nest, tomlArrayHash) {
encPanic(errArrayNoTable)
}
}
return firstType
}
type tagOptions struct {
skip bool // "-"
name string
omitempty bool
omitzero bool
}
func getOptions(tag reflect.StructTag) tagOptions {
t := tag.Get("toml")
if t == "-" {
return tagOptions{skip: true}
}
var opts tagOptions
parts := strings.Split(t, ",")
opts.name = parts[0]
for _, s := range parts[1:] {
switch s {
case "omitempty":
opts.omitempty = true
case "omitzero":
opts.omitzero = true
}
}
return opts
}
func isZero(rv reflect.Value) bool {
switch rv.Kind() {
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
return rv.Int() == 0
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
return rv.Uint() == 0
case reflect.Float32, reflect.Float64:
return rv.Float() == 0.0
}
return false
}
func isEmpty(rv reflect.Value) bool {
switch rv.Kind() {
case reflect.Array, reflect.Slice, reflect.Map, reflect.String:
return rv.Len() == 0
case reflect.Bool:
return !rv.Bool()
}
return false
}
func (enc *Encoder) newline() {
if enc.hasWritten {
enc.wf("\n")
}
}
func (enc *Encoder) keyEqElement(key Key, val reflect.Value) {
if len(key) == 0 {
encPanic(errNoKey)
}
panicIfInvalidKey(key)
enc.wf("%s%s = ", enc.indentStr(key), key.maybeQuoted(len(key)-1))
enc.eElement(val)
enc.newline()
}
func (enc *Encoder) wf(format string, v ...interface{}) {
if _, err := fmt.Fprintf(enc.w, format, v...); err != nil {
encPanic(err)
}
enc.hasWritten = true
}
func (enc *Encoder) indentStr(key Key) string {
return strings.Repeat(enc.Indent, len(key)-1)
}
func encPanic(err error) {
panic(tomlEncodeError{err})
}
func eindirect(v reflect.Value) reflect.Value {
switch v.Kind() {
case reflect.Ptr, reflect.Interface:
return eindirect(v.Elem())
default:
return v
}
}
func isNil(rv reflect.Value) bool {
switch rv.Kind() {
case reflect.Interface, reflect.Map, reflect.Ptr, reflect.Slice:
return rv.IsNil()
default:
return false
}
}
func panicIfInvalidKey(key Key) {
for _, k := range key {
if len(k) == 0 {
encPanic(e("Key '%s' is not a valid table name. Key names "+
"cannot be empty.", key.maybeQuotedAll()))
}
}
}
func isValidKeyName(s string) bool {
return len(s) != 0
}

19
vendor/github.com/BurntSushi/toml/encoding_types.go generated vendored Normal file
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@ -0,0 +1,19 @@
// +build go1.2
package toml
// In order to support Go 1.1, we define our own TextMarshaler and
// TextUnmarshaler types. For Go 1.2+, we just alias them with the
// standard library interfaces.
import (
"encoding"
)
// TextMarshaler is a synonym for encoding.TextMarshaler. It is defined here
// so that Go 1.1 can be supported.
type TextMarshaler encoding.TextMarshaler
// TextUnmarshaler is a synonym for encoding.TextUnmarshaler. It is defined
// here so that Go 1.1 can be supported.
type TextUnmarshaler encoding.TextUnmarshaler

18
vendor/github.com/BurntSushi/toml/encoding_types_1.1.go generated vendored Normal file
View File

@ -0,0 +1,18 @@
// +build !go1.2
package toml
// These interfaces were introduced in Go 1.2, so we add them manually when
// compiling for Go 1.1.
// TextMarshaler is a synonym for encoding.TextMarshaler. It is defined here
// so that Go 1.1 can be supported.
type TextMarshaler interface {
MarshalText() (text []byte, err error)
}
// TextUnmarshaler is a synonym for encoding.TextUnmarshaler. It is defined
// here so that Go 1.1 can be supported.
type TextUnmarshaler interface {
UnmarshalText(text []byte) error
}

953
vendor/github.com/BurntSushi/toml/lex.go generated vendored Normal file
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@ -0,0 +1,953 @@
package toml
import (
"fmt"
"strings"
"unicode"
"unicode/utf8"
)
type itemType int
const (
itemError itemType = iota
itemNIL // used in the parser to indicate no type
itemEOF
itemText
itemString
itemRawString
itemMultilineString
itemRawMultilineString
itemBool
itemInteger
itemFloat
itemDatetime
itemArray // the start of an array
itemArrayEnd
itemTableStart
itemTableEnd
itemArrayTableStart
itemArrayTableEnd
itemKeyStart
itemCommentStart
itemInlineTableStart
itemInlineTableEnd
)
const (
eof = 0
comma = ','
tableStart = '['
tableEnd = ']'
arrayTableStart = '['
arrayTableEnd = ']'
tableSep = '.'
keySep = '='
arrayStart = '['
arrayEnd = ']'
commentStart = '#'
stringStart = '"'
stringEnd = '"'
rawStringStart = '\''
rawStringEnd = '\''
inlineTableStart = '{'
inlineTableEnd = '}'
)
type stateFn func(lx *lexer) stateFn
type lexer struct {
input string
start int
pos int
line int
state stateFn
items chan item
// Allow for backing up up to three runes.
// This is necessary because TOML contains 3-rune tokens (""" and ''').
prevWidths [3]int
nprev int // how many of prevWidths are in use
// If we emit an eof, we can still back up, but it is not OK to call
// next again.
atEOF bool
// A stack of state functions used to maintain context.
// The idea is to reuse parts of the state machine in various places.
// For example, values can appear at the top level or within arbitrarily
// nested arrays. The last state on the stack is used after a value has
// been lexed. Similarly for comments.
stack []stateFn
}
type item struct {
typ itemType
val string
line int
}
func (lx *lexer) nextItem() item {
for {
select {
case item := <-lx.items:
return item
default:
lx.state = lx.state(lx)
}
}
}
func lex(input string) *lexer {
lx := &lexer{
input: input,
state: lexTop,
line: 1,
items: make(chan item, 10),
stack: make([]stateFn, 0, 10),
}
return lx
}
func (lx *lexer) push(state stateFn) {
lx.stack = append(lx.stack, state)
}
func (lx *lexer) pop() stateFn {
if len(lx.stack) == 0 {
return lx.errorf("BUG in lexer: no states to pop")
}
last := lx.stack[len(lx.stack)-1]
lx.stack = lx.stack[0 : len(lx.stack)-1]
return last
}
func (lx *lexer) current() string {
return lx.input[lx.start:lx.pos]
}
func (lx *lexer) emit(typ itemType) {
lx.items <- item{typ, lx.current(), lx.line}
lx.start = lx.pos
}
func (lx *lexer) emitTrim(typ itemType) {
lx.items <- item{typ, strings.TrimSpace(lx.current()), lx.line}
lx.start = lx.pos
}
func (lx *lexer) next() (r rune) {
if lx.atEOF {
panic("next called after EOF")
}
if lx.pos >= len(lx.input) {
lx.atEOF = true
return eof
}
if lx.input[lx.pos] == '\n' {
lx.line++
}
lx.prevWidths[2] = lx.prevWidths[1]
lx.prevWidths[1] = lx.prevWidths[0]
if lx.nprev < 3 {
lx.nprev++
}
r, w := utf8.DecodeRuneInString(lx.input[lx.pos:])
lx.prevWidths[0] = w
lx.pos += w
return r
}
// ignore skips over the pending input before this point.
func (lx *lexer) ignore() {
lx.start = lx.pos
}
// backup steps back one rune. Can be called only twice between calls to next.
func (lx *lexer) backup() {
if lx.atEOF {
lx.atEOF = false
return
}
if lx.nprev < 1 {
panic("backed up too far")
}
w := lx.prevWidths[0]
lx.prevWidths[0] = lx.prevWidths[1]
lx.prevWidths[1] = lx.prevWidths[2]
lx.nprev--
lx.pos -= w
if lx.pos < len(lx.input) && lx.input[lx.pos] == '\n' {
lx.line--
}
}
// accept consumes the next rune if it's equal to `valid`.
func (lx *lexer) accept(valid rune) bool {
if lx.next() == valid {
return true
}
lx.backup()
return false
}
// peek returns but does not consume the next rune in the input.
func (lx *lexer) peek() rune {
r := lx.next()
lx.backup()
return r
}
// skip ignores all input that matches the given predicate.
func (lx *lexer) skip(pred func(rune) bool) {
for {
r := lx.next()
if pred(r) {
continue
}
lx.backup()
lx.ignore()
return
}
}
// errorf stops all lexing by emitting an error and returning `nil`.
// Note that any value that is a character is escaped if it's a special
// character (newlines, tabs, etc.).
func (lx *lexer) errorf(format string, values ...interface{}) stateFn {
lx.items <- item{
itemError,
fmt.Sprintf(format, values...),
lx.line,
}
return nil
}
// lexTop consumes elements at the top level of TOML data.
func lexTop(lx *lexer) stateFn {
r := lx.next()
if isWhitespace(r) || isNL(r) {
return lexSkip(lx, lexTop)
}
switch r {
case commentStart:
lx.push(lexTop)
return lexCommentStart
case tableStart:
return lexTableStart
case eof:
if lx.pos > lx.start {
return lx.errorf("unexpected EOF")
}
lx.emit(itemEOF)
return nil
}
// At this point, the only valid item can be a key, so we back up
// and let the key lexer do the rest.
lx.backup()
lx.push(lexTopEnd)
return lexKeyStart
}
// lexTopEnd is entered whenever a top-level item has been consumed. (A value
// or a table.) It must see only whitespace, and will turn back to lexTop
// upon a newline. If it sees EOF, it will quit the lexer successfully.
func lexTopEnd(lx *lexer) stateFn {
r := lx.next()
switch {
case r == commentStart:
// a comment will read to a newline for us.
lx.push(lexTop)
return lexCommentStart
case isWhitespace(r):
return lexTopEnd
case isNL(r):
lx.ignore()
return lexTop
case r == eof:
lx.emit(itemEOF)
return nil
}
return lx.errorf("expected a top-level item to end with a newline, "+
"comment, or EOF, but got %q instead", r)
}
// lexTable lexes the beginning of a table. Namely, it makes sure that
// it starts with a character other than '.' and ']'.
// It assumes that '[' has already been consumed.
// It also handles the case that this is an item in an array of tables.
// e.g., '[[name]]'.
func lexTableStart(lx *lexer) stateFn {
if lx.peek() == arrayTableStart {
lx.next()
lx.emit(itemArrayTableStart)
lx.push(lexArrayTableEnd)
} else {
lx.emit(itemTableStart)
lx.push(lexTableEnd)
}
return lexTableNameStart
}
func lexTableEnd(lx *lexer) stateFn {
lx.emit(itemTableEnd)
return lexTopEnd
}
func lexArrayTableEnd(lx *lexer) stateFn {
if r := lx.next(); r != arrayTableEnd {
return lx.errorf("expected end of table array name delimiter %q, "+
"but got %q instead", arrayTableEnd, r)
}
lx.emit(itemArrayTableEnd)
return lexTopEnd
}
func lexTableNameStart(lx *lexer) stateFn {
lx.skip(isWhitespace)
switch r := lx.peek(); {
case r == tableEnd || r == eof:
return lx.errorf("unexpected end of table name " +
"(table names cannot be empty)")
case r == tableSep:
return lx.errorf("unexpected table separator " +
"(table names cannot be empty)")
case r == stringStart || r == rawStringStart:
lx.ignore()
lx.push(lexTableNameEnd)
return lexValue // reuse string lexing
default:
return lexBareTableName
}
}
// lexBareTableName lexes the name of a table. It assumes that at least one
// valid character for the table has already been read.
func lexBareTableName(lx *lexer) stateFn {
r := lx.next()
if isBareKeyChar(r) {
return lexBareTableName
}
lx.backup()
lx.emit(itemText)
return lexTableNameEnd
}
// lexTableNameEnd reads the end of a piece of a table name, optionally
// consuming whitespace.
func lexTableNameEnd(lx *lexer) stateFn {
lx.skip(isWhitespace)
switch r := lx.next(); {
case isWhitespace(r):
return lexTableNameEnd
case r == tableSep:
lx.ignore()
return lexTableNameStart
case r == tableEnd:
return lx.pop()
default:
return lx.errorf("expected '.' or ']' to end table name, "+
"but got %q instead", r)
}
}
// lexKeyStart consumes a key name up until the first non-whitespace character.
// lexKeyStart will ignore whitespace.
func lexKeyStart(lx *lexer) stateFn {
r := lx.peek()
switch {
case r == keySep:
return lx.errorf("unexpected key separator %q", keySep)
case isWhitespace(r) || isNL(r):
lx.next()
return lexSkip(lx, lexKeyStart)
case r == stringStart || r == rawStringStart:
lx.ignore()
lx.emit(itemKeyStart)
lx.push(lexKeyEnd)
return lexValue // reuse string lexing
default:
lx.ignore()
lx.emit(itemKeyStart)
return lexBareKey
}
}
// lexBareKey consumes the text of a bare key. Assumes that the first character
// (which is not whitespace) has not yet been consumed.
func lexBareKey(lx *lexer) stateFn {
switch r := lx.next(); {
case isBareKeyChar(r):
return lexBareKey
case isWhitespace(r):
lx.backup()
lx.emit(itemText)
return lexKeyEnd
case r == keySep:
lx.backup()
lx.emit(itemText)
return lexKeyEnd
default:
return lx.errorf("bare keys cannot contain %q", r)
}
}
// lexKeyEnd consumes the end of a key and trims whitespace (up to the key
// separator).
func lexKeyEnd(lx *lexer) stateFn {
switch r := lx.next(); {
case r == keySep:
return lexSkip(lx, lexValue)
case isWhitespace(r):
return lexSkip(lx, lexKeyEnd)
default:
return lx.errorf("expected key separator %q, but got %q instead",
keySep, r)
}
}
// lexValue starts the consumption of a value anywhere a value is expected.
// lexValue will ignore whitespace.
// After a value is lexed, the last state on the next is popped and returned.
func lexValue(lx *lexer) stateFn {
// We allow whitespace to precede a value, but NOT newlines.
// In array syntax, the array states are responsible for ignoring newlines.
r := lx.next()
switch {
case isWhitespace(r):
return lexSkip(lx, lexValue)
case isDigit(r):
lx.backup() // avoid an extra state and use the same as above
return lexNumberOrDateStart
}
switch r {
case arrayStart:
lx.ignore()
lx.emit(itemArray)
return lexArrayValue
case inlineTableStart:
lx.ignore()
lx.emit(itemInlineTableStart)
return lexInlineTableValue
case stringStart:
if lx.accept(stringStart) {
if lx.accept(stringStart) {
lx.ignore() // Ignore """
return lexMultilineString
}
lx.backup()
}
lx.ignore() // ignore the '"'
return lexString
case rawStringStart:
if lx.accept(rawStringStart) {
if lx.accept(rawStringStart) {
lx.ignore() // Ignore """
return lexMultilineRawString
}
lx.backup()
}
lx.ignore() // ignore the "'"
return lexRawString
case '+', '-':
return lexNumberStart
case '.': // special error case, be kind to users
return lx.errorf("floats must start with a digit, not '.'")
}
if unicode.IsLetter(r) {
// Be permissive here; lexBool will give a nice error if the
// user wrote something like
// x = foo
// (i.e. not 'true' or 'false' but is something else word-like.)
lx.backup()
return lexBool
}
return lx.errorf("expected value but found %q instead", r)
}
// lexArrayValue consumes one value in an array. It assumes that '[' or ','
// have already been consumed. All whitespace and newlines are ignored.
func lexArrayValue(lx *lexer) stateFn {
r := lx.next()
switch {
case isWhitespace(r) || isNL(r):
return lexSkip(lx, lexArrayValue)
case r == commentStart:
lx.push(lexArrayValue)
return lexCommentStart
case r == comma:
return lx.errorf("unexpected comma")
case r == arrayEnd:
// NOTE(caleb): The spec isn't clear about whether you can have
// a trailing comma or not, so we'll allow it.
return lexArrayEnd
}
lx.backup()
lx.push(lexArrayValueEnd)
return lexValue
}
// lexArrayValueEnd consumes everything between the end of an array value and
// the next value (or the end of the array): it ignores whitespace and newlines
// and expects either a ',' or a ']'.
func lexArrayValueEnd(lx *lexer) stateFn {
r := lx.next()
switch {
case isWhitespace(r) || isNL(r):
return lexSkip(lx, lexArrayValueEnd)
case r == commentStart:
lx.push(lexArrayValueEnd)
return lexCommentStart
case r == comma:
lx.ignore()
return lexArrayValue // move on to the next value
case r == arrayEnd:
return lexArrayEnd
}
return lx.errorf(
"expected a comma or array terminator %q, but got %q instead",
arrayEnd, r,
)
}
// lexArrayEnd finishes the lexing of an array.
// It assumes that a ']' has just been consumed.
func lexArrayEnd(lx *lexer) stateFn {
lx.ignore()
lx.emit(itemArrayEnd)
return lx.pop()
}
// lexInlineTableValue consumes one key/value pair in an inline table.
// It assumes that '{' or ',' have already been consumed. Whitespace is ignored.
func lexInlineTableValue(lx *lexer) stateFn {
r := lx.next()
switch {
case isWhitespace(r):
return lexSkip(lx, lexInlineTableValue)
case isNL(r):
return lx.errorf("newlines not allowed within inline tables")
case r == commentStart:
lx.push(lexInlineTableValue)
return lexCommentStart
case r == comma:
return lx.errorf("unexpected comma")
case r == inlineTableEnd:
return lexInlineTableEnd
}
lx.backup()
lx.push(lexInlineTableValueEnd)
return lexKeyStart
}
// lexInlineTableValueEnd consumes everything between the end of an inline table
// key/value pair and the next pair (or the end of the table):
// it ignores whitespace and expects either a ',' or a '}'.
func lexInlineTableValueEnd(lx *lexer) stateFn {
r := lx.next()
switch {
case isWhitespace(r):
return lexSkip(lx, lexInlineTableValueEnd)
case isNL(r):
return lx.errorf("newlines not allowed within inline tables")
case r == commentStart:
lx.push(lexInlineTableValueEnd)
return lexCommentStart
case r == comma:
lx.ignore()
return lexInlineTableValue
case r == inlineTableEnd:
return lexInlineTableEnd
}
return lx.errorf("expected a comma or an inline table terminator %q, "+
"but got %q instead", inlineTableEnd, r)
}
// lexInlineTableEnd finishes the lexing of an inline table.
// It assumes that a '}' has just been consumed.
func lexInlineTableEnd(lx *lexer) stateFn {
lx.ignore()
lx.emit(itemInlineTableEnd)
return lx.pop()
}
// lexString consumes the inner contents of a string. It assumes that the
// beginning '"' has already been consumed and ignored.
func lexString(lx *lexer) stateFn {
r := lx.next()
switch {
case r == eof:
return lx.errorf("unexpected EOF")
case isNL(r):
return lx.errorf("strings cannot contain newlines")
case r == '\\':
lx.push(lexString)
return lexStringEscape
case r == stringEnd:
lx.backup()
lx.emit(itemString)
lx.next()
lx.ignore()
return lx.pop()
}
return lexString
}
// lexMultilineString consumes the inner contents of a string. It assumes that
// the beginning '"""' has already been consumed and ignored.
func lexMultilineString(lx *lexer) stateFn {
switch lx.next() {
case eof:
return lx.errorf("unexpected EOF")
case '\\':
return lexMultilineStringEscape
case stringEnd:
if lx.accept(stringEnd) {
if lx.accept(stringEnd) {
lx.backup()
lx.backup()
lx.backup()
lx.emit(itemMultilineString)
lx.next()
lx.next()
lx.next()
lx.ignore()
return lx.pop()
}
lx.backup()
}
}
return lexMultilineString
}
// lexRawString consumes a raw string. Nothing can be escaped in such a string.
// It assumes that the beginning "'" has already been consumed and ignored.
func lexRawString(lx *lexer) stateFn {
r := lx.next()
switch {
case r == eof:
return lx.errorf("unexpected EOF")
case isNL(r):
return lx.errorf("strings cannot contain newlines")
case r == rawStringEnd:
lx.backup()
lx.emit(itemRawString)
lx.next()
lx.ignore()
return lx.pop()
}
return lexRawString
}
// lexMultilineRawString consumes a raw string. Nothing can be escaped in such
// a string. It assumes that the beginning "'''" has already been consumed and
// ignored.
func lexMultilineRawString(lx *lexer) stateFn {
switch lx.next() {
case eof:
return lx.errorf("unexpected EOF")
case rawStringEnd:
if lx.accept(rawStringEnd) {
if lx.accept(rawStringEnd) {
lx.backup()
lx.backup()
lx.backup()
lx.emit(itemRawMultilineString)
lx.next()
lx.next()
lx.next()
lx.ignore()
return lx.pop()
}
lx.backup()
}
}
return lexMultilineRawString
}
// lexMultilineStringEscape consumes an escaped character. It assumes that the
// preceding '\\' has already been consumed.
func lexMultilineStringEscape(lx *lexer) stateFn {
// Handle the special case first:
if isNL(lx.next()) {
return lexMultilineString
}
lx.backup()
lx.push(lexMultilineString)
return lexStringEscape(lx)
}
func lexStringEscape(lx *lexer) stateFn {
r := lx.next()
switch r {
case 'b':
fallthrough
case 't':
fallthrough
case 'n':
fallthrough
case 'f':
fallthrough
case 'r':
fallthrough
case '"':
fallthrough
case '\\':
return lx.pop()
case 'u':
return lexShortUnicodeEscape
case 'U':
return lexLongUnicodeEscape
}
return lx.errorf("invalid escape character %q; only the following "+
"escape characters are allowed: "+
`\b, \t, \n, \f, \r, \", \\, \uXXXX, and \UXXXXXXXX`, r)
}
func lexShortUnicodeEscape(lx *lexer) stateFn {
var r rune
for i := 0; i < 4; i++ {
r = lx.next()
if !isHexadecimal(r) {
return lx.errorf(`expected four hexadecimal digits after '\u', `+
"but got %q instead", lx.current())
}
}
return lx.pop()
}
func lexLongUnicodeEscape(lx *lexer) stateFn {
var r rune
for i := 0; i < 8; i++ {
r = lx.next()
if !isHexadecimal(r) {
return lx.errorf(`expected eight hexadecimal digits after '\U', `+
"but got %q instead", lx.current())
}
}
return lx.pop()
}
// lexNumberOrDateStart consumes either an integer, a float, or datetime.
func lexNumberOrDateStart(lx *lexer) stateFn {
r := lx.next()
if isDigit(r) {
return lexNumberOrDate
}
switch r {
case '_':
return lexNumber
case 'e', 'E':
return lexFloat
case '.':
return lx.errorf("floats must start with a digit, not '.'")
}
return lx.errorf("expected a digit but got %q", r)
}
// lexNumberOrDate consumes either an integer, float or datetime.
func lexNumberOrDate(lx *lexer) stateFn {
r := lx.next()
if isDigit(r) {
return lexNumberOrDate
}
switch r {
case '-':
return lexDatetime
case '_':
return lexNumber
case '.', 'e', 'E':
return lexFloat
}
lx.backup()
lx.emit(itemInteger)
return lx.pop()
}
// lexDatetime consumes a Datetime, to a first approximation.
// The parser validates that it matches one of the accepted formats.
func lexDatetime(lx *lexer) stateFn {
r := lx.next()
if isDigit(r) {
return lexDatetime
}
switch r {
case '-', 'T', ':', '.', 'Z':
return lexDatetime
}
lx.backup()
lx.emit(itemDatetime)
return lx.pop()
}
// lexNumberStart consumes either an integer or a float. It assumes that a sign
// has already been read, but that *no* digits have been consumed.
// lexNumberStart will move to the appropriate integer or float states.
func lexNumberStart(lx *lexer) stateFn {
// We MUST see a digit. Even floats have to start with a digit.
r := lx.next()
if !isDigit(r) {
if r == '.' {
return lx.errorf("floats must start with a digit, not '.'")
}
return lx.errorf("expected a digit but got %q", r)
}
return lexNumber
}
// lexNumber consumes an integer or a float after seeing the first digit.
func lexNumber(lx *lexer) stateFn {
r := lx.next()
if isDigit(r) {
return lexNumber
}
switch r {
case '_':
return lexNumber
case '.', 'e', 'E':
return lexFloat
}
lx.backup()
lx.emit(itemInteger)
return lx.pop()
}
// lexFloat consumes the elements of a float. It allows any sequence of
// float-like characters, so floats emitted by the lexer are only a first
// approximation and must be validated by the parser.
func lexFloat(lx *lexer) stateFn {
r := lx.next()
if isDigit(r) {
return lexFloat
}
switch r {
case '_', '.', '-', '+', 'e', 'E':
return lexFloat
}
lx.backup()
lx.emit(itemFloat)
return lx.pop()
}
// lexBool consumes a bool string: 'true' or 'false.
func lexBool(lx *lexer) stateFn {
var rs []rune
for {
r := lx.next()
if !unicode.IsLetter(r) {
lx.backup()
break
}
rs = append(rs, r)
}
s := string(rs)
switch s {
case "true", "false":
lx.emit(itemBool)
return lx.pop()
}
return lx.errorf("expected value but found %q instead", s)
}
// lexCommentStart begins the lexing of a comment. It will emit
// itemCommentStart and consume no characters, passing control to lexComment.
func lexCommentStart(lx *lexer) stateFn {
lx.ignore()
lx.emit(itemCommentStart)
return lexComment
}
// lexComment lexes an entire comment. It assumes that '#' has been consumed.
// It will consume *up to* the first newline character, and pass control
// back to the last state on the stack.
func lexComment(lx *lexer) stateFn {
r := lx.peek()
if isNL(r) || r == eof {
lx.emit(itemText)
return lx.pop()
}
lx.next()
return lexComment
}
// lexSkip ignores all slurped input and moves on to the next state.
func lexSkip(lx *lexer, nextState stateFn) stateFn {
return func(lx *lexer) stateFn {
lx.ignore()
return nextState
}
}
// isWhitespace returns true if `r` is a whitespace character according
// to the spec.
func isWhitespace(r rune) bool {
return r == '\t' || r == ' '
}
func isNL(r rune) bool {
return r == '\n' || r == '\r'
}
func isDigit(r rune) bool {
return r >= '0' && r <= '9'
}
func isHexadecimal(r rune) bool {
return (r >= '0' && r <= '9') ||
(r >= 'a' && r <= 'f') ||
(r >= 'A' && r <= 'F')
}
func isBareKeyChar(r rune) bool {
return (r >= 'A' && r <= 'Z') ||
(r >= 'a' && r <= 'z') ||
(r >= '0' && r <= '9') ||
r == '_' ||
r == '-'
}
func (itype itemType) String() string {
switch itype {
case itemError:
return "Error"
case itemNIL:
return "NIL"
case itemEOF:
return "EOF"
case itemText:
return "Text"
case itemString, itemRawString, itemMultilineString, itemRawMultilineString:
return "String"
case itemBool:
return "Bool"
case itemInteger:
return "Integer"
case itemFloat:
return "Float"
case itemDatetime:
return "DateTime"
case itemTableStart:
return "TableStart"
case itemTableEnd:
return "TableEnd"
case itemKeyStart:
return "KeyStart"
case itemArray:
return "Array"
case itemArrayEnd:
return "ArrayEnd"
case itemCommentStart:
return "CommentStart"
}
panic(fmt.Sprintf("BUG: Unknown type '%d'.", int(itype)))
}
func (item item) String() string {
return fmt.Sprintf("(%s, %s)", item.typ.String(), item.val)
}

592
vendor/github.com/BurntSushi/toml/parse.go generated vendored Normal file
View File

@ -0,0 +1,592 @@
package toml
import (
"fmt"
"strconv"
"strings"
"time"
"unicode"
"unicode/utf8"
)
type parser struct {
mapping map[string]interface{}
types map[string]tomlType
lx *lexer
// A list of keys in the order that they appear in the TOML data.
ordered []Key
// the full key for the current hash in scope
context Key
// the base key name for everything except hashes
currentKey string
// rough approximation of line number
approxLine int
// A map of 'key.group.names' to whether they were created implicitly.
implicits map[string]bool
}
type parseError string
func (pe parseError) Error() string {
return string(pe)
}
func parse(data string) (p *parser, err error) {
defer func() {
if r := recover(); r != nil {
var ok bool
if err, ok = r.(parseError); ok {
return
}
panic(r)
}
}()
p = &parser{
mapping: make(map[string]interface{}),
types: make(map[string]tomlType),
lx: lex(data),
ordered: make([]Key, 0),
implicits: make(map[string]bool),
}
for {
item := p.next()
if item.typ == itemEOF {
break
}
p.topLevel(item)
}
return p, nil
}
func (p *parser) panicf(format string, v ...interface{}) {
msg := fmt.Sprintf("Near line %d (last key parsed '%s'): %s",
p.approxLine, p.current(), fmt.Sprintf(format, v...))
panic(parseError(msg))
}
func (p *parser) next() item {
it := p.lx.nextItem()
if it.typ == itemError {
p.panicf("%s", it.val)
}
return it
}
func (p *parser) bug(format string, v ...interface{}) {
panic(fmt.Sprintf("BUG: "+format+"\n\n", v...))
}
func (p *parser) expect(typ itemType) item {
it := p.next()
p.assertEqual(typ, it.typ)
return it
}
func (p *parser) assertEqual(expected, got itemType) {
if expected != got {
p.bug("Expected '%s' but got '%s'.", expected, got)
}
}
func (p *parser) topLevel(item item) {
switch item.typ {
case itemCommentStart:
p.approxLine = item.line
p.expect(itemText)
case itemTableStart:
kg := p.next()
p.approxLine = kg.line
var key Key
for ; kg.typ != itemTableEnd && kg.typ != itemEOF; kg = p.next() {
key = append(key, p.keyString(kg))
}
p.assertEqual(itemTableEnd, kg.typ)
p.establishContext(key, false)
p.setType("", tomlHash)
p.ordered = append(p.ordered, key)
case itemArrayTableStart:
kg := p.next()
p.approxLine = kg.line
var key Key
for ; kg.typ != itemArrayTableEnd && kg.typ != itemEOF; kg = p.next() {
key = append(key, p.keyString(kg))
}
p.assertEqual(itemArrayTableEnd, kg.typ)
p.establishContext(key, true)
p.setType("", tomlArrayHash)
p.ordered = append(p.ordered, key)
case itemKeyStart:
kname := p.next()
p.approxLine = kname.line
p.currentKey = p.keyString(kname)
val, typ := p.value(p.next())
p.setValue(p.currentKey, val)
p.setType(p.currentKey, typ)
p.ordered = append(p.ordered, p.context.add(p.currentKey))
p.currentKey = ""
default:
p.bug("Unexpected type at top level: %s", item.typ)
}
}
// Gets a string for a key (or part of a key in a table name).
func (p *parser) keyString(it item) string {
switch it.typ {
case itemText:
return it.val
case itemString, itemMultilineString,
itemRawString, itemRawMultilineString:
s, _ := p.value(it)
return s.(string)
default:
p.bug("Unexpected key type: %s", it.typ)
panic("unreachable")
}
}
// value translates an expected value from the lexer into a Go value wrapped
// as an empty interface.
func (p *parser) value(it item) (interface{}, tomlType) {
switch it.typ {
case itemString:
return p.replaceEscapes(it.val), p.typeOfPrimitive(it)
case itemMultilineString:
trimmed := stripFirstNewline(stripEscapedWhitespace(it.val))
return p.replaceEscapes(trimmed), p.typeOfPrimitive(it)
case itemRawString:
return it.val, p.typeOfPrimitive(it)
case itemRawMultilineString:
return stripFirstNewline(it.val), p.typeOfPrimitive(it)
case itemBool:
switch it.val {
case "true":
return true, p.typeOfPrimitive(it)
case "false":
return false, p.typeOfPrimitive(it)
}
p.bug("Expected boolean value, but got '%s'.", it.val)
case itemInteger:
if !numUnderscoresOK(it.val) {
p.panicf("Invalid integer %q: underscores must be surrounded by digits",
it.val)
}
val := strings.Replace(it.val, "_", "", -1)
num, err := strconv.ParseInt(val, 10, 64)
if err != nil {
// Distinguish integer values. Normally, it'd be a bug if the lexer
// provides an invalid integer, but it's possible that the number is
// out of range of valid values (which the lexer cannot determine).
// So mark the former as a bug but the latter as a legitimate user
// error.
if e, ok := err.(*strconv.NumError); ok &&
e.Err == strconv.ErrRange {
p.panicf("Integer '%s' is out of the range of 64-bit "+
"signed integers.", it.val)
} else {
p.bug("Expected integer value, but got '%s'.", it.val)
}
}
return num, p.typeOfPrimitive(it)
case itemFloat:
parts := strings.FieldsFunc(it.val, func(r rune) bool {
switch r {
case '.', 'e', 'E':
return true
}
return false
})
for _, part := range parts {
if !numUnderscoresOK(part) {
p.panicf("Invalid float %q: underscores must be "+
"surrounded by digits", it.val)
}
}
if !numPeriodsOK(it.val) {
// As a special case, numbers like '123.' or '1.e2',
// which are valid as far as Go/strconv are concerned,
// must be rejected because TOML says that a fractional
// part consists of '.' followed by 1+ digits.
p.panicf("Invalid float %q: '.' must be followed "+
"by one or more digits", it.val)
}
val := strings.Replace(it.val, "_", "", -1)
num, err := strconv.ParseFloat(val, 64)
if err != nil {
if e, ok := err.(*strconv.NumError); ok &&
e.Err == strconv.ErrRange {
p.panicf("Float '%s' is out of the range of 64-bit "+
"IEEE-754 floating-point numbers.", it.val)
} else {
p.panicf("Invalid float value: %q", it.val)
}
}
return num, p.typeOfPrimitive(it)
case itemDatetime:
var t time.Time
var ok bool
var err error
for _, format := range []string{
"2006-01-02T15:04:05Z07:00",
"2006-01-02T15:04:05",
"2006-01-02",
} {
t, err = time.ParseInLocation(format, it.val, time.Local)
if err == nil {
ok = true
break
}
}
if !ok {
p.panicf("Invalid TOML Datetime: %q.", it.val)
}
return t, p.typeOfPrimitive(it)
case itemArray:
array := make([]interface{}, 0)
types := make([]tomlType, 0)
for it = p.next(); it.typ != itemArrayEnd; it = p.next() {
if it.typ == itemCommentStart {
p.expect(itemText)
continue
}
val, typ := p.value(it)
array = append(array, val)
types = append(types, typ)
}
return array, p.typeOfArray(types)
case itemInlineTableStart:
var (
hash = make(map[string]interface{})
outerContext = p.context
outerKey = p.currentKey
)
p.context = append(p.context, p.currentKey)
p.currentKey = ""
for it := p.next(); it.typ != itemInlineTableEnd; it = p.next() {
if it.typ != itemKeyStart {
p.bug("Expected key start but instead found %q, around line %d",
it.val, p.approxLine)
}
if it.typ == itemCommentStart {
p.expect(itemText)
continue
}
// retrieve key
k := p.next()
p.approxLine = k.line
kname := p.keyString(k)
// retrieve value
p.currentKey = kname
val, typ := p.value(p.next())
// make sure we keep metadata up to date
p.setType(kname, typ)
p.ordered = append(p.ordered, p.context.add(p.currentKey))
hash[kname] = val
}
p.context = outerContext
p.currentKey = outerKey
return hash, tomlHash
}
p.bug("Unexpected value type: %s", it.typ)
panic("unreachable")
}
// numUnderscoresOK checks whether each underscore in s is surrounded by
// characters that are not underscores.
func numUnderscoresOK(s string) bool {
accept := false
for _, r := range s {
if r == '_' {
if !accept {
return false
}
accept = false
continue
}
accept = true
}
return accept
}
// numPeriodsOK checks whether every period in s is followed by a digit.
func numPeriodsOK(s string) bool {
period := false
for _, r := range s {
if period && !isDigit(r) {
return false
}
period = r == '.'
}
return !period
}
// establishContext sets the current context of the parser,
// where the context is either a hash or an array of hashes. Which one is
// set depends on the value of the `array` parameter.
//
// Establishing the context also makes sure that the key isn't a duplicate, and
// will create implicit hashes automatically.
func (p *parser) establishContext(key Key, array bool) {
var ok bool
// Always start at the top level and drill down for our context.
hashContext := p.mapping
keyContext := make(Key, 0)
// We only need implicit hashes for key[0:-1]
for _, k := range key[0 : len(key)-1] {
_, ok = hashContext[k]
keyContext = append(keyContext, k)
// No key? Make an implicit hash and move on.
if !ok {
p.addImplicit(keyContext)
hashContext[k] = make(map[string]interface{})
}
// If the hash context is actually an array of tables, then set
// the hash context to the last element in that array.
//
// Otherwise, it better be a table, since this MUST be a key group (by
// virtue of it not being the last element in a key).
switch t := hashContext[k].(type) {
case []map[string]interface{}:
hashContext = t[len(t)-1]
case map[string]interface{}:
hashContext = t
default:
p.panicf("Key '%s' was already created as a hash.", keyContext)
}
}
p.context = keyContext
if array {
// If this is the first element for this array, then allocate a new
// list of tables for it.
k := key[len(key)-1]
if _, ok := hashContext[k]; !ok {
hashContext[k] = make([]map[string]interface{}, 0, 5)
}
// Add a new table. But make sure the key hasn't already been used
// for something else.
if hash, ok := hashContext[k].([]map[string]interface{}); ok {
hashContext[k] = append(hash, make(map[string]interface{}))
} else {
p.panicf("Key '%s' was already created and cannot be used as "+
"an array.", keyContext)
}
} else {
p.setValue(key[len(key)-1], make(map[string]interface{}))
}
p.context = append(p.context, key[len(key)-1])
}
// setValue sets the given key to the given value in the current context.
// It will make sure that the key hasn't already been defined, account for
// implicit key groups.
func (p *parser) setValue(key string, value interface{}) {
var tmpHash interface{}
var ok bool
hash := p.mapping
keyContext := make(Key, 0)
for _, k := range p.context {
keyContext = append(keyContext, k)
if tmpHash, ok = hash[k]; !ok {
p.bug("Context for key '%s' has not been established.", keyContext)
}
switch t := tmpHash.(type) {
case []map[string]interface{}:
// The context is a table of hashes. Pick the most recent table
// defined as the current hash.
hash = t[len(t)-1]
case map[string]interface{}:
hash = t
default:
p.bug("Expected hash to have type 'map[string]interface{}', but "+
"it has '%T' instead.", tmpHash)
}
}
keyContext = append(keyContext, key)
if _, ok := hash[key]; ok {
// Typically, if the given key has already been set, then we have
// to raise an error since duplicate keys are disallowed. However,
// it's possible that a key was previously defined implicitly. In this
// case, it is allowed to be redefined concretely. (See the
// `tests/valid/implicit-and-explicit-after.toml` test in `toml-test`.)
//
// But we have to make sure to stop marking it as an implicit. (So that
// another redefinition provokes an error.)
//
// Note that since it has already been defined (as a hash), we don't
// want to overwrite it. So our business is done.
if p.isImplicit(keyContext) {
p.removeImplicit(keyContext)
return
}
// Otherwise, we have a concrete key trying to override a previous
// key, which is *always* wrong.
p.panicf("Key '%s' has already been defined.", keyContext)
}
hash[key] = value
}
// setType sets the type of a particular value at a given key.
// It should be called immediately AFTER setValue.
//
// Note that if `key` is empty, then the type given will be applied to the
// current context (which is either a table or an array of tables).
func (p *parser) setType(key string, typ tomlType) {
keyContext := make(Key, 0, len(p.context)+1)
for _, k := range p.context {
keyContext = append(keyContext, k)
}
if len(key) > 0 { // allow type setting for hashes
keyContext = append(keyContext, key)
}
p.types[keyContext.String()] = typ
}
// addImplicit sets the given Key as having been created implicitly.
func (p *parser) addImplicit(key Key) {
p.implicits[key.String()] = true
}
// removeImplicit stops tagging the given key as having been implicitly
// created.
func (p *parser) removeImplicit(key Key) {
p.implicits[key.String()] = false
}
// isImplicit returns true if the key group pointed to by the key was created
// implicitly.
func (p *parser) isImplicit(key Key) bool {
return p.implicits[key.String()]
}
// current returns the full key name of the current context.
func (p *parser) current() string {
if len(p.currentKey) == 0 {
return p.context.String()
}
if len(p.context) == 0 {
return p.currentKey
}
return fmt.Sprintf("%s.%s", p.context, p.currentKey)
}
func stripFirstNewline(s string) string {
if len(s) == 0 || s[0] != '\n' {
return s
}
return s[1:]
}
func stripEscapedWhitespace(s string) string {
esc := strings.Split(s, "\\\n")
if len(esc) > 1 {
for i := 1; i < len(esc); i++ {
esc[i] = strings.TrimLeftFunc(esc[i], unicode.IsSpace)
}
}
return strings.Join(esc, "")
}
func (p *parser) replaceEscapes(str string) string {
var replaced []rune
s := []byte(str)
r := 0
for r < len(s) {
if s[r] != '\\' {
c, size := utf8.DecodeRune(s[r:])
r += size
replaced = append(replaced, c)
continue
}
r += 1
if r >= len(s) {
p.bug("Escape sequence at end of string.")
return ""
}
switch s[r] {
default:
p.bug("Expected valid escape code after \\, but got %q.", s[r])
return ""
case 'b':
replaced = append(replaced, rune(0x0008))
r += 1
case 't':
replaced = append(replaced, rune(0x0009))
r += 1
case 'n':
replaced = append(replaced, rune(0x000A))
r += 1
case 'f':
replaced = append(replaced, rune(0x000C))
r += 1
case 'r':
replaced = append(replaced, rune(0x000D))
r += 1
case '"':
replaced = append(replaced, rune(0x0022))
r += 1
case '\\':
replaced = append(replaced, rune(0x005C))
r += 1
case 'u':
// At this point, we know we have a Unicode escape of the form
// `uXXXX` at [r, r+5). (Because the lexer guarantees this
// for us.)
escaped := p.asciiEscapeToUnicode(s[r+1 : r+5])
replaced = append(replaced, escaped)
r += 5
case 'U':
// At this point, we know we have a Unicode escape of the form
// `uXXXX` at [r, r+9). (Because the lexer guarantees this
// for us.)
escaped := p.asciiEscapeToUnicode(s[r+1 : r+9])
replaced = append(replaced, escaped)
r += 9
}
}
return string(replaced)
}
func (p *parser) asciiEscapeToUnicode(bs []byte) rune {
s := string(bs)
hex, err := strconv.ParseUint(strings.ToLower(s), 16, 32)
if err != nil {
p.bug("Could not parse '%s' as a hexadecimal number, but the "+
"lexer claims it's OK: %s", s, err)
}
if !utf8.ValidRune(rune(hex)) {
p.panicf("Escaped character '\\u%s' is not valid UTF-8.", s)
}
return rune(hex)
}
func isStringType(ty itemType) bool {
return ty == itemString || ty == itemMultilineString ||
ty == itemRawString || ty == itemRawMultilineString
}

91
vendor/github.com/BurntSushi/toml/type_check.go generated vendored Normal file
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package toml
// tomlType represents any Go type that corresponds to a TOML type.
// While the first draft of the TOML spec has a simplistic type system that
// probably doesn't need this level of sophistication, we seem to be militating
// toward adding real composite types.
type tomlType interface {
typeString() string
}
// typeEqual accepts any two types and returns true if they are equal.
func typeEqual(t1, t2 tomlType) bool {
if t1 == nil || t2 == nil {
return false
}
return t1.typeString() == t2.typeString()
}
func typeIsHash(t tomlType) bool {
return typeEqual(t, tomlHash) || typeEqual(t, tomlArrayHash)
}
type tomlBaseType string
func (btype tomlBaseType) typeString() string {
return string(btype)
}
func (btype tomlBaseType) String() string {
return btype.typeString()
}
var (
tomlInteger tomlBaseType = "Integer"
tomlFloat tomlBaseType = "Float"
tomlDatetime tomlBaseType = "Datetime"
tomlString tomlBaseType = "String"
tomlBool tomlBaseType = "Bool"
tomlArray tomlBaseType = "Array"
tomlHash tomlBaseType = "Hash"
tomlArrayHash tomlBaseType = "ArrayHash"
)
// typeOfPrimitive returns a tomlType of any primitive value in TOML.
// Primitive values are: Integer, Float, Datetime, String and Bool.
//
// Passing a lexer item other than the following will cause a BUG message
// to occur: itemString, itemBool, itemInteger, itemFloat, itemDatetime.
func (p *parser) typeOfPrimitive(lexItem item) tomlType {
switch lexItem.typ {
case itemInteger:
return tomlInteger
case itemFloat:
return tomlFloat
case itemDatetime:
return tomlDatetime
case itemString:
return tomlString
case itemMultilineString:
return tomlString
case itemRawString:
return tomlString
case itemRawMultilineString:
return tomlString
case itemBool:
return tomlBool
}
p.bug("Cannot infer primitive type of lex item '%s'.", lexItem)
panic("unreachable")
}
// typeOfArray returns a tomlType for an array given a list of types of its
// values.
//
// In the current spec, if an array is homogeneous, then its type is always
// "Array". If the array is not homogeneous, an error is generated.
func (p *parser) typeOfArray(types []tomlType) tomlType {
// Empty arrays are cool.
if len(types) == 0 {
return tomlArray
}
theType := types[0]
for _, t := range types[1:] {
if !typeEqual(theType, t) {
p.panicf("Array contains values of type '%s' and '%s', but "+
"arrays must be homogeneous.", theType, t)
}
}
return tomlArray
}

242
vendor/github.com/BurntSushi/toml/type_fields.go generated vendored Normal file
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package toml
// Struct field handling is adapted from code in encoding/json:
//
// Copyright 2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the Go distribution.
import (
"reflect"
"sort"
"sync"
)
// A field represents a single field found in a struct.
type field struct {
name string // the name of the field (`toml` tag included)
tag bool // whether field has a `toml` tag
index []int // represents the depth of an anonymous field
typ reflect.Type // the type of the field
}
// byName sorts field by name, breaking ties with depth,
// then breaking ties with "name came from toml tag", then
// breaking ties with index sequence.
type byName []field
func (x byName) Len() int { return len(x) }
func (x byName) Swap(i, j int) { x[i], x[j] = x[j], x[i] }
func (x byName) Less(i, j int) bool {
if x[i].name != x[j].name {
return x[i].name < x[j].name
}
if len(x[i].index) != len(x[j].index) {
return len(x[i].index) < len(x[j].index)
}
if x[i].tag != x[j].tag {
return x[i].tag
}
return byIndex(x).Less(i, j)
}
// byIndex sorts field by index sequence.
type byIndex []field
func (x byIndex) Len() int { return len(x) }
func (x byIndex) Swap(i, j int) { x[i], x[j] = x[j], x[i] }
func (x byIndex) Less(i, j int) bool {
for k, xik := range x[i].index {
if k >= len(x[j].index) {
return false
}
if xik != x[j].index[k] {
return xik < x[j].index[k]
}
}
return len(x[i].index) < len(x[j].index)
}
// typeFields returns a list of fields that TOML should recognize for the given
// type. The algorithm is breadth-first search over the set of structs to
// include - the top struct and then any reachable anonymous structs.
func typeFields(t reflect.Type) []field {
// Anonymous fields to explore at the current level and the next.
current := []field{}
next := []field{{typ: t}}
// Count of queued names for current level and the next.
count := map[reflect.Type]int{}
nextCount := map[reflect.Type]int{}
// Types already visited at an earlier level.
visited := map[reflect.Type]bool{}
// Fields found.
var fields []field
for len(next) > 0 {
current, next = next, current[:0]
count, nextCount = nextCount, map[reflect.Type]int{}
for _, f := range current {
if visited[f.typ] {
continue
}
visited[f.typ] = true
// Scan f.typ for fields to include.
for i := 0; i < f.typ.NumField(); i++ {
sf := f.typ.Field(i)
if sf.PkgPath != "" && !sf.Anonymous { // unexported
continue
}
opts := getOptions(sf.Tag)
if opts.skip {
continue
}
index := make([]int, len(f.index)+1)
copy(index, f.index)
index[len(f.index)] = i
ft := sf.Type
if ft.Name() == "" && ft.Kind() == reflect.Ptr {
// Follow pointer.
ft = ft.Elem()
}
// Record found field and index sequence.
if opts.name != "" || !sf.Anonymous || ft.Kind() != reflect.Struct {
tagged := opts.name != ""
name := opts.name
if name == "" {
name = sf.Name
}
fields = append(fields, field{name, tagged, index, ft})
if count[f.typ] > 1 {
// If there were multiple instances, add a second,
// so that the annihilation code will see a duplicate.
// It only cares about the distinction between 1 or 2,
// so don't bother generating any more copies.
fields = append(fields, fields[len(fields)-1])
}
continue
}
// Record new anonymous struct to explore in next round.
nextCount[ft]++
if nextCount[ft] == 1 {
f := field{name: ft.Name(), index: index, typ: ft}
next = append(next, f)
}
}
}
}
sort.Sort(byName(fields))
// Delete all fields that are hidden by the Go rules for embedded fields,
// except that fields with TOML tags are promoted.
// The fields are sorted in primary order of name, secondary order
// of field index length. Loop over names; for each name, delete
// hidden fields by choosing the one dominant field that survives.
out := fields[:0]
for advance, i := 0, 0; i < len(fields); i += advance {
// One iteration per name.
// Find the sequence of fields with the name of this first field.
fi := fields[i]
name := fi.name
for advance = 1; i+advance < len(fields); advance++ {
fj := fields[i+advance]
if fj.name != name {
break
}
}
if advance == 1 { // Only one field with this name
out = append(out, fi)
continue
}
dominant, ok := dominantField(fields[i : i+advance])
if ok {
out = append(out, dominant)
}
}
fields = out
sort.Sort(byIndex(fields))
return fields
}
// dominantField looks through the fields, all of which are known to
// have the same name, to find the single field that dominates the
// others using Go's embedding rules, modified by the presence of
// TOML tags. If there are multiple top-level fields, the boolean
// will be false: This condition is an error in Go and we skip all
// the fields.
func dominantField(fields []field) (field, bool) {
// The fields are sorted in increasing index-length order. The winner
// must therefore be one with the shortest index length. Drop all
// longer entries, which is easy: just truncate the slice.
length := len(fields[0].index)
tagged := -1 // Index of first tagged field.
for i, f := range fields {
if len(f.index) > length {
fields = fields[:i]
break
}
if f.tag {
if tagged >= 0 {
// Multiple tagged fields at the same level: conflict.
// Return no field.
return field{}, false
}
tagged = i
}
}
if tagged >= 0 {
return fields[tagged], true
}
// All remaining fields have the same length. If there's more than one,
// we have a conflict (two fields named "X" at the same level) and we
// return no field.
if len(fields) > 1 {
return field{}, false
}
return fields[0], true
}
var fieldCache struct {
sync.RWMutex
m map[reflect.Type][]field
}
// cachedTypeFields is like typeFields but uses a cache to avoid repeated work.
func cachedTypeFields(t reflect.Type) []field {
fieldCache.RLock()
f := fieldCache.m[t]
fieldCache.RUnlock()
if f != nil {
return f
}
// Compute fields without lock.
// Might duplicate effort but won't hold other computations back.
f = typeFields(t)
if f == nil {
f = []field{}
}
fieldCache.Lock()
if fieldCache.m == nil {
fieldCache.m = map[reflect.Type][]field{}
}
fieldCache.m[t] = f
fieldCache.Unlock()
return f
}

21
vendor/github.com/Microsoft/hcsshim/LICENSE generated vendored Normal file
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The MIT License (MIT)
Copyright (c) 2015 Microsoft
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

28
vendor/github.com/Microsoft/hcsshim/activatelayer.go generated vendored Normal file
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package hcsshim
import "github.com/sirupsen/logrus"
// ActivateLayer will find the layer with the given id and mount it's filesystem.
// For a read/write layer, the mounted filesystem will appear as a volume on the
// host, while a read-only layer is generally expected to be a no-op.
// An activated layer must later be deactivated via DeactivateLayer.
func ActivateLayer(info DriverInfo, id string) error {
title := "hcsshim::ActivateLayer "
logrus.Debugf(title+"Flavour %d ID %s", info.Flavour, id)
infop, err := convertDriverInfo(info)
if err != nil {
logrus.Error(err)
return err
}
err = activateLayer(&infop, id)
if err != nil {
err = makeErrorf(err, title, "id=%s flavour=%d", id, info.Flavour)
logrus.Error(err)
return err
}
logrus.Debugf(title+" - succeeded id=%s flavour=%d", id, info.Flavour)
return nil
}

171
vendor/github.com/Microsoft/hcsshim/baselayer.go generated vendored Normal file
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package hcsshim
import (
"errors"
"os"
"path/filepath"
"syscall"
"github.com/Microsoft/go-winio"
)
type baseLayerWriter struct {
root *os.File
f *os.File
bw *winio.BackupFileWriter
err error
hasUtilityVM bool
dirInfo []dirInfo
}
type dirInfo struct {
path string
fileInfo winio.FileBasicInfo
}
// reapplyDirectoryTimes reapplies directory modification, creation, etc. times
// after processing of the directory tree has completed. The times are expected
// to be ordered such that parent directories come before child directories.
func reapplyDirectoryTimes(root *os.File, dis []dirInfo) error {
for i := range dis {
di := &dis[len(dis)-i-1] // reverse order: process child directories first
f, err := openRelative(di.path, root, syscall.GENERIC_READ|syscall.GENERIC_WRITE, syscall.FILE_SHARE_READ, _FILE_OPEN, _FILE_DIRECTORY_FILE)
if err != nil {
return err
}
err = winio.SetFileBasicInfo(f, &di.fileInfo)
f.Close()
if err != nil {
return err
}
}
return nil
}
func (w *baseLayerWriter) closeCurrentFile() error {
if w.f != nil {
err := w.bw.Close()
err2 := w.f.Close()
w.f = nil
w.bw = nil
if err != nil {
return err
}
if err2 != nil {
return err2
}
}
return nil
}
func (w *baseLayerWriter) Add(name string, fileInfo *winio.FileBasicInfo) (err error) {
defer func() {
if err != nil {
w.err = err
}
}()
err = w.closeCurrentFile()
if err != nil {
return err
}
if filepath.ToSlash(name) == `UtilityVM/Files` {
w.hasUtilityVM = true
}
var f *os.File
defer func() {
if f != nil {
f.Close()
}
}()
extraFlags := uint32(0)
if fileInfo.FileAttributes&syscall.FILE_ATTRIBUTE_DIRECTORY != 0 {
extraFlags |= _FILE_DIRECTORY_FILE
if fileInfo.FileAttributes&syscall.FILE_ATTRIBUTE_REPARSE_POINT == 0 {
w.dirInfo = append(w.dirInfo, dirInfo{name, *fileInfo})
}
}
mode := uint32(syscall.GENERIC_READ | syscall.GENERIC_WRITE | winio.WRITE_DAC | winio.WRITE_OWNER | winio.ACCESS_SYSTEM_SECURITY)
f, err = openRelative(name, w.root, mode, syscall.FILE_SHARE_READ, _FILE_CREATE, extraFlags)
if err != nil {
return makeError(err, "Failed to openRelative", name)
}
err = winio.SetFileBasicInfo(f, fileInfo)
if err != nil {
return makeError(err, "Failed to SetFileBasicInfo", name)
}
w.f = f
w.bw = winio.NewBackupFileWriter(f, true)
f = nil
return nil
}
func (w *baseLayerWriter) AddLink(name string, target string) (err error) {
defer func() {
if err != nil {
w.err = err
}
}()
err = w.closeCurrentFile()
if err != nil {
return err
}
return linkRelative(target, w.root, name, w.root)
}
func (w *baseLayerWriter) Remove(name string) error {
return errors.New("base layer cannot have tombstones")
}
func (w *baseLayerWriter) Write(b []byte) (int, error) {
n, err := w.bw.Write(b)
if err != nil {
w.err = err
}
return n, err
}
func (w *baseLayerWriter) Close() error {
defer func() {
w.root.Close()
w.root = nil
}()
err := w.closeCurrentFile()
if err != nil {
return err
}
if w.err == nil {
// Restore the file times of all the directories, since they may have
// been modified by creating child directories.
err = reapplyDirectoryTimes(w.root, w.dirInfo)
if err != nil {
return err
}
err = ProcessBaseLayer(w.root.Name())
if err != nil {
return err
}
if w.hasUtilityVM {
err := ensureNotReparsePointRelative("UtilityVM", w.root)
if err != nil {
return err
}
err = ProcessUtilityVMImage(filepath.Join(w.root.Name(), "UtilityVM"))
if err != nil {
return err
}
}
}
return w.err
}

79
vendor/github.com/Microsoft/hcsshim/callback.go generated vendored Normal file
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package hcsshim
import (
"sync"
"syscall"
)
var (
nextCallback uintptr
callbackMap = map[uintptr]*notifcationWatcherContext{}
callbackMapLock = sync.RWMutex{}
notificationWatcherCallback = syscall.NewCallback(notificationWatcher)
// Notifications for HCS_SYSTEM handles
hcsNotificationSystemExited hcsNotification = 0x00000001
hcsNotificationSystemCreateCompleted hcsNotification = 0x00000002
hcsNotificationSystemStartCompleted hcsNotification = 0x00000003
hcsNotificationSystemPauseCompleted hcsNotification = 0x00000004
hcsNotificationSystemResumeCompleted hcsNotification = 0x00000005
// Notifications for HCS_PROCESS handles
hcsNotificationProcessExited hcsNotification = 0x00010000
// Common notifications
hcsNotificationInvalid hcsNotification = 0x00000000
hcsNotificationServiceDisconnect hcsNotification = 0x01000000
)
type hcsNotification uint32
type notificationChannel chan error
type notifcationWatcherContext struct {
channels notificationChannels
handle hcsCallback
}
type notificationChannels map[hcsNotification]notificationChannel
func newChannels() notificationChannels {
channels := make(notificationChannels)
channels[hcsNotificationSystemExited] = make(notificationChannel, 1)
channels[hcsNotificationSystemCreateCompleted] = make(notificationChannel, 1)
channels[hcsNotificationSystemStartCompleted] = make(notificationChannel, 1)
channels[hcsNotificationSystemPauseCompleted] = make(notificationChannel, 1)
channels[hcsNotificationSystemResumeCompleted] = make(notificationChannel, 1)
channels[hcsNotificationProcessExited] = make(notificationChannel, 1)
channels[hcsNotificationServiceDisconnect] = make(notificationChannel, 1)
return channels
}
func closeChannels(channels notificationChannels) {
close(channels[hcsNotificationSystemExited])
close(channels[hcsNotificationSystemCreateCompleted])
close(channels[hcsNotificationSystemStartCompleted])
close(channels[hcsNotificationSystemPauseCompleted])
close(channels[hcsNotificationSystemResumeCompleted])
close(channels[hcsNotificationProcessExited])
close(channels[hcsNotificationServiceDisconnect])
}
func notificationWatcher(notificationType hcsNotification, callbackNumber uintptr, notificationStatus uintptr, notificationData *uint16) uintptr {
var result error
if int32(notificationStatus) < 0 {
result = syscall.Errno(win32FromHresult(notificationStatus))
}
callbackMapLock.RLock()
context := callbackMap[callbackNumber]
callbackMapLock.RUnlock()
if context == nil {
return 0
}
context.channels[notificationType] <- result
return 0
}

7
vendor/github.com/Microsoft/hcsshim/cgo.go generated vendored Normal file
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package hcsshim
import "C"
// This import is needed to make the library compile as CGO because HCSSHIM
// only works with CGO due to callbacks from HCS comming back from a C thread
// which is not supported without CGO. See https://github.com/golang/go/issues/10973

800
vendor/github.com/Microsoft/hcsshim/container.go generated vendored Normal file
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package hcsshim
import (
"encoding/json"
"fmt"
"os"
"sync"
"syscall"
"time"
"github.com/sirupsen/logrus"
)
var (
defaultTimeout = time.Minute * 4
)
const (
pendingUpdatesQuery = `{ "PropertyTypes" : ["PendingUpdates"]}`
statisticsQuery = `{ "PropertyTypes" : ["Statistics"]}`
processListQuery = `{ "PropertyTypes" : ["ProcessList"]}`
mappedVirtualDiskQuery = `{ "PropertyTypes" : ["MappedVirtualDisk"]}`
)
type container struct {
handleLock sync.RWMutex
handle hcsSystem
id string
callbackNumber uintptr
}
// ContainerProperties holds the properties for a container and the processes running in that container
type ContainerProperties struct {
ID string `json:"Id"`
Name string
SystemType string
Owner string
SiloGUID string `json:"SiloGuid,omitempty"`
RuntimeID string `json:"RuntimeId,omitempty"`
IsRuntimeTemplate bool `json:",omitempty"`
RuntimeImagePath string `json:",omitempty"`
Stopped bool `json:",omitempty"`
ExitType string `json:",omitempty"`
AreUpdatesPending bool `json:",omitempty"`
ObRoot string `json:",omitempty"`
Statistics Statistics `json:",omitempty"`
ProcessList []ProcessListItem `json:",omitempty"`
MappedVirtualDiskControllers map[int]MappedVirtualDiskController `json:",omitempty"`
}
// MemoryStats holds the memory statistics for a container
type MemoryStats struct {
UsageCommitBytes uint64 `json:"MemoryUsageCommitBytes,omitempty"`
UsageCommitPeakBytes uint64 `json:"MemoryUsageCommitPeakBytes,omitempty"`
UsagePrivateWorkingSetBytes uint64 `json:"MemoryUsagePrivateWorkingSetBytes,omitempty"`
}
// ProcessorStats holds the processor statistics for a container
type ProcessorStats struct {
TotalRuntime100ns uint64 `json:",omitempty"`
RuntimeUser100ns uint64 `json:",omitempty"`
RuntimeKernel100ns uint64 `json:",omitempty"`
}
// StorageStats holds the storage statistics for a container
type StorageStats struct {
ReadCountNormalized uint64 `json:",omitempty"`
ReadSizeBytes uint64 `json:",omitempty"`
WriteCountNormalized uint64 `json:",omitempty"`
WriteSizeBytes uint64 `json:",omitempty"`
}
// NetworkStats holds the network statistics for a container
type NetworkStats struct {
BytesReceived uint64 `json:",omitempty"`
BytesSent uint64 `json:",omitempty"`
PacketsReceived uint64 `json:",omitempty"`
PacketsSent uint64 `json:",omitempty"`
DroppedPacketsIncoming uint64 `json:",omitempty"`
DroppedPacketsOutgoing uint64 `json:",omitempty"`
EndpointId string `json:",omitempty"`
InstanceId string `json:",omitempty"`
}
// Statistics is the structure returned by a statistics call on a container
type Statistics struct {
Timestamp time.Time `json:",omitempty"`
ContainerStartTime time.Time `json:",omitempty"`
Uptime100ns uint64 `json:",omitempty"`
Memory MemoryStats `json:",omitempty"`
Processor ProcessorStats `json:",omitempty"`
Storage StorageStats `json:",omitempty"`
Network []NetworkStats `json:",omitempty"`
}
// ProcessList is the structure of an item returned by a ProcessList call on a container
type ProcessListItem struct {
CreateTimestamp time.Time `json:",omitempty"`
ImageName string `json:",omitempty"`
KernelTime100ns uint64 `json:",omitempty"`
MemoryCommitBytes uint64 `json:",omitempty"`
MemoryWorkingSetPrivateBytes uint64 `json:",omitempty"`
MemoryWorkingSetSharedBytes uint64 `json:",omitempty"`
ProcessId uint32 `json:",omitempty"`
UserTime100ns uint64 `json:",omitempty"`
}
// MappedVirtualDiskController is the structure of an item returned by a MappedVirtualDiskList call on a container
type MappedVirtualDiskController struct {
MappedVirtualDisks map[int]MappedVirtualDisk `json:",omitempty"`
}
// Type of Request Support in ModifySystem
type RequestType string
// Type of Resource Support in ModifySystem
type ResourceType string
// RequestType const
const (
Add RequestType = "Add"
Remove RequestType = "Remove"
Network ResourceType = "Network"
)
// ResourceModificationRequestResponse is the structure used to send request to the container to modify the system
// Supported resource types are Network and Request Types are Add/Remove
type ResourceModificationRequestResponse struct {
Resource ResourceType `json:"ResourceType"`
Data interface{} `json:"Settings"`
Request RequestType `json:"RequestType,omitempty"`
}
// createContainerAdditionalJSON is read from the environment at initialisation
// time. It allows an environment variable to define additional JSON which
// is merged in the CreateContainer call to HCS.
var createContainerAdditionalJSON string
func init() {
createContainerAdditionalJSON = os.Getenv("HCSSHIM_CREATECONTAINER_ADDITIONALJSON")
}
// CreateContainer creates a new container with the given configuration but does not start it.
func CreateContainer(id string, c *ContainerConfig) (Container, error) {
return createContainerWithJSON(id, c, "")
}
// CreateContainerWithJSON creates a new container with the given configuration but does not start it.
// It is identical to CreateContainer except that optional additional JSON can be merged before passing to HCS.
func CreateContainerWithJSON(id string, c *ContainerConfig, additionalJSON string) (Container, error) {
return createContainerWithJSON(id, c, additionalJSON)
}
func createContainerWithJSON(id string, c *ContainerConfig, additionalJSON string) (Container, error) {
operation := "CreateContainer"
title := "HCSShim::" + operation
container := &container{
id: id,
}
configurationb, err := json.Marshal(c)
if err != nil {
return nil, err
}
configuration := string(configurationb)
logrus.Debugf(title+" id=%s config=%s", id, configuration)
// Merge any additional JSON. Priority is given to what is passed in explicitly,
// falling back to what's set in the environment.
if additionalJSON == "" && createContainerAdditionalJSON != "" {
additionalJSON = createContainerAdditionalJSON
}
if additionalJSON != "" {
configurationMap := map[string]interface{}{}
if err := json.Unmarshal([]byte(configuration), &configurationMap); err != nil {
return nil, fmt.Errorf("failed to unmarshal %s: %s", configuration, err)
}
additionalMap := map[string]interface{}{}
if err := json.Unmarshal([]byte(additionalJSON), &additionalMap); err != nil {
return nil, fmt.Errorf("failed to unmarshal %s: %s", additionalJSON, err)
}
mergedMap := mergeMaps(additionalMap, configurationMap)
mergedJSON, err := json.Marshal(mergedMap)
if err != nil {
return nil, fmt.Errorf("failed to marshal merged configuration map %+v: %s", mergedMap, err)
}
configuration = string(mergedJSON)
logrus.Debugf(title+" id=%s merged config=%s", id, configuration)
}
var (
resultp *uint16
identity syscall.Handle
)
createError := hcsCreateComputeSystem(id, configuration, identity, &container.handle, &resultp)
if createError == nil || IsPending(createError) {
if err := container.registerCallback(); err != nil {
// Terminate the container if it still exists. We're okay to ignore a failure here.
container.Terminate()
return nil, makeContainerError(container, operation, "", err)
}
}
err = processAsyncHcsResult(createError, resultp, container.callbackNumber, hcsNotificationSystemCreateCompleted, &defaultTimeout)
if err != nil {
if err == ErrTimeout {
// Terminate the container if it still exists. We're okay to ignore a failure here.
container.Terminate()
}
return nil, makeContainerError(container, operation, configuration, err)
}
logrus.Debugf(title+" succeeded id=%s handle=%d", id, container.handle)
return container, nil
}
// mergeMaps recursively merges map `fromMap` into map `ToMap`. Any pre-existing values
// in ToMap are overwritten. Values in fromMap are added to ToMap.
// From http://stackoverflow.com/questions/40491438/merging-two-json-strings-in-golang
func mergeMaps(fromMap, ToMap interface{}) interface{} {
switch fromMap := fromMap.(type) {
case map[string]interface{}:
ToMap, ok := ToMap.(map[string]interface{})
if !ok {
return fromMap
}
for keyToMap, valueToMap := range ToMap {
if valueFromMap, ok := fromMap[keyToMap]; ok {
fromMap[keyToMap] = mergeMaps(valueFromMap, valueToMap)
} else {
fromMap[keyToMap] = valueToMap
}
}
case nil:
// merge(nil, map[string]interface{...}) -> map[string]interface{...}
ToMap, ok := ToMap.(map[string]interface{})
if ok {
return ToMap
}
}
return fromMap
}
// OpenContainer opens an existing container by ID.
func OpenContainer(id string) (Container, error) {
operation := "OpenContainer"
title := "HCSShim::" + operation
logrus.Debugf(title+" id=%s", id)
container := &container{
id: id,
}
var (
handle hcsSystem
resultp *uint16
)
err := hcsOpenComputeSystem(id, &handle, &resultp)
err = processHcsResult(err, resultp)
if err != nil {
return nil, makeContainerError(container, operation, "", err)
}
container.handle = handle
if err := container.registerCallback(); err != nil {
return nil, makeContainerError(container, operation, "", err)
}
logrus.Debugf(title+" succeeded id=%s handle=%d", id, handle)
return container, nil
}
// GetContainers gets a list of the containers on the system that match the query
func GetContainers(q ComputeSystemQuery) ([]ContainerProperties, error) {
operation := "GetContainers"
title := "HCSShim::" + operation
queryb, err := json.Marshal(q)
if err != nil {
return nil, err
}
query := string(queryb)
logrus.Debugf(title+" query=%s", query)
var (
resultp *uint16
computeSystemsp *uint16
)
err = hcsEnumerateComputeSystems(query, &computeSystemsp, &resultp)
err = processHcsResult(err, resultp)
if err != nil {
return nil, err
}
if computeSystemsp == nil {
return nil, ErrUnexpectedValue
}
computeSystemsRaw := convertAndFreeCoTaskMemBytes(computeSystemsp)
computeSystems := []ContainerProperties{}
if err := json.Unmarshal(computeSystemsRaw, &computeSystems); err != nil {
return nil, err
}
logrus.Debugf(title + " succeeded")
return computeSystems, nil
}
// Start synchronously starts the container.
func (container *container) Start() error {
container.handleLock.RLock()
defer container.handleLock.RUnlock()
operation := "Start"
title := "HCSShim::Container::" + operation
logrus.Debugf(title+" id=%s", container.id)
if container.handle == 0 {
return makeContainerError(container, operation, "", ErrAlreadyClosed)
}
var resultp *uint16
err := hcsStartComputeSystem(container.handle, "", &resultp)
err = processAsyncHcsResult(err, resultp, container.callbackNumber, hcsNotificationSystemStartCompleted, &defaultTimeout)
if err != nil {
return makeContainerError(container, operation, "", err)
}
logrus.Debugf(title+" succeeded id=%s", container.id)
return nil
}
// Shutdown requests a container shutdown, if IsPending() on the error returned is true,
// it may not actually be shut down until Wait() succeeds.
func (container *container) Shutdown() error {
container.handleLock.RLock()
defer container.handleLock.RUnlock()
operation := "Shutdown"
title := "HCSShim::Container::" + operation
logrus.Debugf(title+" id=%s", container.id)
if container.handle == 0 {
return makeContainerError(container, operation, "", ErrAlreadyClosed)
}
var resultp *uint16
err := hcsShutdownComputeSystem(container.handle, "", &resultp)
err = processHcsResult(err, resultp)
if err != nil {
return makeContainerError(container, operation, "", err)
}
logrus.Debugf(title+" succeeded id=%s", container.id)
return nil
}
// Terminate requests a container terminate, if IsPending() on the error returned is true,
// it may not actually be shut down until Wait() succeeds.
func (container *container) Terminate() error {
container.handleLock.RLock()
defer container.handleLock.RUnlock()
operation := "Terminate"
title := "HCSShim::Container::" + operation
logrus.Debugf(title+" id=%s", container.id)
if container.handle == 0 {
return makeContainerError(container, operation, "", ErrAlreadyClosed)
}
var resultp *uint16
err := hcsTerminateComputeSystem(container.handle, "", &resultp)
err = processHcsResult(err, resultp)
if err != nil {
return makeContainerError(container, operation, "", err)
}
logrus.Debugf(title+" succeeded id=%s", container.id)
return nil
}
// Wait synchronously waits for the container to shutdown or terminate.
func (container *container) Wait() error {
operation := "Wait"
title := "HCSShim::Container::" + operation
logrus.Debugf(title+" id=%s", container.id)
err := waitForNotification(container.callbackNumber, hcsNotificationSystemExited, nil)
if err != nil {
return makeContainerError(container, operation, "", err)
}
logrus.Debugf(title+" succeeded id=%s", container.id)
return nil
}
// WaitTimeout synchronously waits for the container to terminate or the duration to elapse.
// If the timeout expires, IsTimeout(err) == true
func (container *container) WaitTimeout(timeout time.Duration) error {
operation := "WaitTimeout"
title := "HCSShim::Container::" + operation
logrus.Debugf(title+" id=%s", container.id)
err := waitForNotification(container.callbackNumber, hcsNotificationSystemExited, &timeout)
if err != nil {
return makeContainerError(container, operation, "", err)
}
logrus.Debugf(title+" succeeded id=%s", container.id)
return nil
}
func (container *container) properties(query string) (*ContainerProperties, error) {
var (
resultp *uint16
propertiesp *uint16
)
err := hcsGetComputeSystemProperties(container.handle, query, &propertiesp, &resultp)
err = processHcsResult(err, resultp)
if err != nil {
return nil, err
}
if propertiesp == nil {
return nil, ErrUnexpectedValue
}
propertiesRaw := convertAndFreeCoTaskMemBytes(propertiesp)
properties := &ContainerProperties{}
if err := json.Unmarshal(propertiesRaw, properties); err != nil {
return nil, err
}
return properties, nil
}
// HasPendingUpdates returns true if the container has updates pending to install
func (container *container) HasPendingUpdates() (bool, error) {
container.handleLock.RLock()
defer container.handleLock.RUnlock()
operation := "HasPendingUpdates"
title := "HCSShim::Container::" + operation
logrus.Debugf(title+" id=%s", container.id)
if container.handle == 0 {
return false, makeContainerError(container, operation, "", ErrAlreadyClosed)
}
properties, err := container.properties(pendingUpdatesQuery)
if err != nil {
return false, makeContainerError(container, operation, "", err)
}
logrus.Debugf(title+" succeeded id=%s", container.id)
return properties.AreUpdatesPending, nil
}
// Statistics returns statistics for the container
func (container *container) Statistics() (Statistics, error) {
container.handleLock.RLock()
defer container.handleLock.RUnlock()
operation := "Statistics"
title := "HCSShim::Container::" + operation
logrus.Debugf(title+" id=%s", container.id)
if container.handle == 0 {
return Statistics{}, makeContainerError(container, operation, "", ErrAlreadyClosed)
}
properties, err := container.properties(statisticsQuery)
if err != nil {
return Statistics{}, makeContainerError(container, operation, "", err)
}
logrus.Debugf(title+" succeeded id=%s", container.id)
return properties.Statistics, nil
}
// ProcessList returns an array of ProcessListItems for the container
func (container *container) ProcessList() ([]ProcessListItem, error) {
container.handleLock.RLock()
defer container.handleLock.RUnlock()
operation := "ProcessList"
title := "HCSShim::Container::" + operation
logrus.Debugf(title+" id=%s", container.id)
if container.handle == 0 {
return nil, makeContainerError(container, operation, "", ErrAlreadyClosed)
}
properties, err := container.properties(processListQuery)
if err != nil {
return nil, makeContainerError(container, operation, "", err)
}
logrus.Debugf(title+" succeeded id=%s", container.id)
return properties.ProcessList, nil
}
// MappedVirtualDisks returns a map of the controllers and the disks mapped
// to a container.
//
// Example of JSON returned by the query.
//{
// "Id":"1126e8d7d279c707a666972a15976371d365eaf622c02cea2c442b84f6f550a3_svm",
// "SystemType":"Container",
// "RuntimeOsType":"Linux",
// "RuntimeId":"00000000-0000-0000-0000-000000000000",
// "State":"Running",
// "MappedVirtualDiskControllers":{
// "0":{
// "MappedVirtualDisks":{
// "2":{
// "HostPath":"C:\\lcow\\lcow\\scratch\\1126e8d7d279c707a666972a15976371d365eaf622c02cea2c442b84f6f550a3.vhdx",
// "ContainerPath":"/mnt/gcs/LinuxServiceVM/scratch",
// "Lun":2,
// "CreateInUtilityVM":true
// },
// "3":{
// "HostPath":"C:\\lcow\\lcow\\1126e8d7d279c707a666972a15976371d365eaf622c02cea2c442b84f6f550a3\\sandbox.vhdx",
// "Lun":3,
// "CreateInUtilityVM":true,
// "AttachOnly":true
// }
// }
// }
// }
//}
func (container *container) MappedVirtualDisks() (map[int]MappedVirtualDiskController, error) {
container.handleLock.RLock()
defer container.handleLock.RUnlock()
operation := "MappedVirtualDiskList"
title := "HCSShim::Container::" + operation
logrus.Debugf(title+" id=%s", container.id)
if container.handle == 0 {
return nil, makeContainerError(container, operation, "", ErrAlreadyClosed)
}
properties, err := container.properties(mappedVirtualDiskQuery)
if err != nil {
return nil, makeContainerError(container, operation, "", err)
}
logrus.Debugf(title+" succeeded id=%s", container.id)
return properties.MappedVirtualDiskControllers, nil
}
// Pause pauses the execution of the container. This feature is not enabled in TP5.
func (container *container) Pause() error {
container.handleLock.RLock()
defer container.handleLock.RUnlock()
operation := "Pause"
title := "HCSShim::Container::" + operation
logrus.Debugf(title+" id=%s", container.id)
if container.handle == 0 {
return makeContainerError(container, operation, "", ErrAlreadyClosed)
}
var resultp *uint16
err := hcsPauseComputeSystem(container.handle, "", &resultp)
err = processAsyncHcsResult(err, resultp, container.callbackNumber, hcsNotificationSystemPauseCompleted, &defaultTimeout)
if err != nil {
return makeContainerError(container, operation, "", err)
}
logrus.Debugf(title+" succeeded id=%s", container.id)
return nil
}
// Resume resumes the execution of the container. This feature is not enabled in TP5.
func (container *container) Resume() error {
container.handleLock.RLock()
defer container.handleLock.RUnlock()
operation := "Resume"
title := "HCSShim::Container::" + operation
logrus.Debugf(title+" id=%s", container.id)
if container.handle == 0 {
return makeContainerError(container, operation, "", ErrAlreadyClosed)
}
var resultp *uint16
err := hcsResumeComputeSystem(container.handle, "", &resultp)
err = processAsyncHcsResult(err, resultp, container.callbackNumber, hcsNotificationSystemResumeCompleted, &defaultTimeout)
if err != nil {
return makeContainerError(container, operation, "", err)
}
logrus.Debugf(title+" succeeded id=%s", container.id)
return nil
}
// CreateProcess launches a new process within the container.
func (container *container) CreateProcess(c *ProcessConfig) (Process, error) {
container.handleLock.RLock()
defer container.handleLock.RUnlock()
operation := "CreateProcess"
title := "HCSShim::Container::" + operation
var (
processInfo hcsProcessInformation
processHandle hcsProcess
resultp *uint16
)
if container.handle == 0 {
return nil, makeContainerError(container, operation, "", ErrAlreadyClosed)
}
// If we are not emulating a console, ignore any console size passed to us
if !c.EmulateConsole {
c.ConsoleSize[0] = 0
c.ConsoleSize[1] = 0
}
configurationb, err := json.Marshal(c)
if err != nil {
return nil, makeContainerError(container, operation, "", err)
}
configuration := string(configurationb)
logrus.Debugf(title+" id=%s config=%s", container.id, configuration)
err = hcsCreateProcess(container.handle, configuration, &processInfo, &processHandle, &resultp)
err = processHcsResult(err, resultp)
if err != nil {
return nil, makeContainerError(container, operation, configuration, err)
}
process := &process{
handle: processHandle,
processID: int(processInfo.ProcessId),
container: container,
cachedPipes: &cachedPipes{
stdIn: processInfo.StdInput,
stdOut: processInfo.StdOutput,
stdErr: processInfo.StdError,
},
}
if err := process.registerCallback(); err != nil {
return nil, makeContainerError(container, operation, "", err)
}
logrus.Debugf(title+" succeeded id=%s processid=%d", container.id, process.processID)
return process, nil
}
// OpenProcess gets an interface to an existing process within the container.
func (container *container) OpenProcess(pid int) (Process, error) {
container.handleLock.RLock()
defer container.handleLock.RUnlock()
operation := "OpenProcess"
title := "HCSShim::Container::" + operation
logrus.Debugf(title+" id=%s, processid=%d", container.id, pid)
var (
processHandle hcsProcess
resultp *uint16
)
if container.handle == 0 {
return nil, makeContainerError(container, operation, "", ErrAlreadyClosed)
}
err := hcsOpenProcess(container.handle, uint32(pid), &processHandle, &resultp)
err = processHcsResult(err, resultp)
if err != nil {
return nil, makeContainerError(container, operation, "", err)
}
process := &process{
handle: processHandle,
processID: pid,
container: container,
}
if err := process.registerCallback(); err != nil {
return nil, makeContainerError(container, operation, "", err)
}
logrus.Debugf(title+" succeeded id=%s processid=%s", container.id, process.processID)
return process, nil
}
// Close cleans up any state associated with the container but does not terminate or wait for it.
func (container *container) Close() error {
container.handleLock.Lock()
defer container.handleLock.Unlock()
operation := "Close"
title := "HCSShim::Container::" + operation
logrus.Debugf(title+" id=%s", container.id)
// Don't double free this
if container.handle == 0 {
return nil
}
if err := container.unregisterCallback(); err != nil {
return makeContainerError(container, operation, "", err)
}
if err := hcsCloseComputeSystem(container.handle); err != nil {
return makeContainerError(container, operation, "", err)
}
container.handle = 0
logrus.Debugf(title+" succeeded id=%s", container.id)
return nil
}
func (container *container) registerCallback() error {
context := &notifcationWatcherContext{
channels: newChannels(),
}
callbackMapLock.Lock()
callbackNumber := nextCallback
nextCallback++
callbackMap[callbackNumber] = context
callbackMapLock.Unlock()
var callbackHandle hcsCallback
err := hcsRegisterComputeSystemCallback(container.handle, notificationWatcherCallback, callbackNumber, &callbackHandle)
if err != nil {
return err
}
context.handle = callbackHandle
container.callbackNumber = callbackNumber
return nil
}
func (container *container) unregisterCallback() error {
callbackNumber := container.callbackNumber
callbackMapLock.RLock()
context := callbackMap[callbackNumber]
callbackMapLock.RUnlock()
if context == nil {
return nil
}
handle := context.handle
if handle == 0 {
return nil
}
// hcsUnregisterComputeSystemCallback has its own syncronization
// to wait for all callbacks to complete. We must NOT hold the callbackMapLock.
err := hcsUnregisterComputeSystemCallback(handle)
if err != nil {
return err
}
closeChannels(context.channels)
callbackMapLock.Lock()
callbackMap[callbackNumber] = nil
callbackMapLock.Unlock()
handle = 0
return nil
}
// Modifies the System by sending a request to HCS
func (container *container) Modify(config *ResourceModificationRequestResponse) error {
container.handleLock.RLock()
defer container.handleLock.RUnlock()
operation := "Modify"
title := "HCSShim::Container::" + operation
if container.handle == 0 {
return makeContainerError(container, operation, "", ErrAlreadyClosed)
}
requestJSON, err := json.Marshal(config)
if err != nil {
return err
}
requestString := string(requestJSON)
logrus.Debugf(title+" id=%s request=%s", container.id, requestString)
var resultp *uint16
err = hcsModifyComputeSystem(container.handle, requestString, &resultp)
err = processHcsResult(err, resultp)
if err != nil {
return makeContainerError(container, operation, "", err)
}
logrus.Debugf(title+" succeeded id=%s", container.id)
return nil
}

27
vendor/github.com/Microsoft/hcsshim/createlayer.go generated vendored Normal file
View File

@ -0,0 +1,27 @@
package hcsshim
import "github.com/sirupsen/logrus"
// CreateLayer creates a new, empty, read-only layer on the filesystem based on
// the parent layer provided.
func CreateLayer(info DriverInfo, id, parent string) error {
title := "hcsshim::CreateLayer "
logrus.Debugf(title+"Flavour %d ID %s parent %s", info.Flavour, id, parent)
// Convert info to API calling convention
infop, err := convertDriverInfo(info)
if err != nil {
logrus.Error(err)
return err
}
err = createLayer(&infop, id, parent)
if err != nil {
err = makeErrorf(err, title, "id=%s parent=%s flavour=%d", id, parent, info.Flavour)
logrus.Error(err)
return err
}
logrus.Debugf(title+" - succeeded id=%s parent=%s flavour=%d", id, parent, info.Flavour)
return nil
}

35
vendor/github.com/Microsoft/hcsshim/createsandboxlayer.go generated vendored Normal file
View File

@ -0,0 +1,35 @@
package hcsshim
import "github.com/sirupsen/logrus"
// CreateSandboxLayer creates and populates new read-write layer for use by a container.
// This requires both the id of the direct parent layer, as well as the full list
// of paths to all parent layers up to the base (and including the direct parent
// whose id was provided).
func CreateSandboxLayer(info DriverInfo, layerId, parentId string, parentLayerPaths []string) error {
title := "hcsshim::CreateSandboxLayer "
logrus.Debugf(title+"layerId %s parentId %s", layerId, parentId)
// Generate layer descriptors
layers, err := layerPathsToDescriptors(parentLayerPaths)
if err != nil {
return err
}
// Convert info to API calling convention
infop, err := convertDriverInfo(info)
if err != nil {
logrus.Error(err)
return err
}
err = createSandboxLayer(&infop, layerId, parentId, layers)
if err != nil {
err = makeErrorf(err, title, "layerId=%s parentId=%s", layerId, parentId)
logrus.Error(err)
return err
}
logrus.Debugf(title+"- succeeded layerId=%s parentId=%s", layerId, parentId)
return nil
}

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