50 lines
1.7 KiB
Go
50 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 commands
|
|
|
|
import (
|
|
"github.com/containers/image/manifest"
|
|
"github.com/docker/docker/builder/dockerfile/instructions"
|
|
"github.com/pkg/errors"
|
|
)
|
|
|
|
type DockerCommand interface {
|
|
// ExecuteCommand is responsible for:
|
|
// 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(*manifest.Schema2Config) 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
|
|
FilesToSnapshot() []string
|
|
}
|
|
|
|
func GetCommand(cmd instructions.Command, buildcontext string) (DockerCommand, error) {
|
|
switch c := cmd.(type) {
|
|
case *instructions.RunCommand:
|
|
return &RunCommand{cmd: c}, nil
|
|
case *instructions.CopyCommand:
|
|
return &CopyCommand{cmd: c, buildcontext: buildcontext}, nil
|
|
case *instructions.ExposeCommand:
|
|
return &ExposeCommand{cmd: c}, nil
|
|
case *instructions.EnvCommand:
|
|
return &EnvCommand{cmd: c}, nil
|
|
}
|
|
return nil, errors.Errorf("%s is not a supported command", cmd.Name())
|
|
}
|