65 lines
1.7 KiB
Go
65 lines
1.7 KiB
Go
/*
|
|
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 buildcontext
|
|
|
|
import (
|
|
"os"
|
|
"strings"
|
|
|
|
"github.com/GoogleContainerTools/kaniko/pkg/constants"
|
|
git "gopkg.in/src-d/go-git.v4"
|
|
"gopkg.in/src-d/go-git.v4/plumbing"
|
|
)
|
|
|
|
const (
|
|
gitPullMethodEnvKey = "GIT_PULL_METHOD"
|
|
gitPullMethodHTTPS = "https"
|
|
gitPullMethodHTTP = "http"
|
|
)
|
|
|
|
var (
|
|
supportedGitPullMethods = map[string]bool{gitPullMethodHTTPS: true, gitPullMethodHTTP: true}
|
|
)
|
|
|
|
// Git unifies calls to download and unpack the build context.
|
|
type Git struct {
|
|
context string
|
|
}
|
|
|
|
// UnpackTarFromBuildContext will provide the directory where Git Repository is Cloned
|
|
func (g *Git) UnpackTarFromBuildContext() (string, error) {
|
|
directory := constants.BuildContextDir
|
|
parts := strings.Split(g.context, "#")
|
|
options := git.CloneOptions{
|
|
URL: getGitPullMethod() + "://" + parts[0],
|
|
Progress: os.Stdout,
|
|
}
|
|
if len(parts) > 1 {
|
|
options.ReferenceName = plumbing.ReferenceName(parts[1])
|
|
}
|
|
_, err := git.PlainClone(directory, false, &options)
|
|
return directory, err
|
|
}
|
|
|
|
func getGitPullMethod() string {
|
|
gitPullMethod := os.Getenv(gitPullMethodEnvKey)
|
|
if ok := supportedGitPullMethods[gitPullMethod]; !ok {
|
|
gitPullMethod = gitPullMethodHTTPS
|
|
}
|
|
return gitPullMethod
|
|
}
|