66 lines
2.3 KiB
Go
66 lines
2.3 KiB
Go
/*
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Copyright 2018 Google LLC
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package commands
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import (
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"github.com/containers/image/manifest"
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"github.com/docker/docker/builder/dockerfile/instructions"
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"github.com/pkg/errors"
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)
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type DockerCommand interface {
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// ExecuteCommand is responsible for:
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// 1. Making required changes to the filesystem (ex. copying files for ADD/COPY or setting ENV variables)
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// 2. Updating metadata fields in the config
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// It should not change the config history.
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ExecuteCommand(*manifest.Schema2Config) error
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// The config history has a "created by" field, should return information about the command
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CreatedBy() string
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// A list of files to snapshot, empty for metadata commands or nil if we don't know
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FilesToSnapshot() []string
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}
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func GetCommand(cmd instructions.Command, buildcontext string) (DockerCommand, error) {
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switch c := cmd.(type) {
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case *instructions.RunCommand:
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return &RunCommand{cmd: c}, nil
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case *instructions.CopyCommand:
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return &CopyCommand{cmd: c, buildcontext: buildcontext}, nil
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case *instructions.ExposeCommand:
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return &ExposeCommand{cmd: c}, nil
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case *instructions.EnvCommand:
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return &EnvCommand{cmd: c}, nil
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case *instructions.WorkdirCommand:
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return &WorkdirCommand{cmd: c}, nil
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case *instructions.AddCommand:
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return &AddCommand{cmd: c, buildcontext: buildcontext}, nil
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case *instructions.CmdCommand:
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return &CmdCommand{cmd: c}, nil
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case *instructions.EntrypointCommand:
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return &EntrypointCommand{cmd: c}, nil
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case *instructions.LabelCommand:
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return &LabelCommand{cmd: c}, nil
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case *instructions.UserCommand:
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return &UserCommand{cmd: c}, nil
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case *instructions.OnbuildCommand:
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return &OnBuildCommand{cmd: c}, nil
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case *instructions.VolumeCommand:
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return &VolumeCommand{cmd: c}, nil
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}
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return nil, errors.Errorf("%s is not a supported command", cmd.Name())
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}
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