59 lines
1.2 KiB
Go
59 lines
1.2 KiB
Go
package container
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import (
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"errors"
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"fmt"
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"github.com/docker/docker/cli"
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"github.com/docker/docker/cli/command"
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"github.com/docker/docker/pkg/archive"
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"github.com/spf13/cobra"
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"golang.org/x/net/context"
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)
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type diffOptions struct {
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container string
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}
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// NewDiffCommand creates a new cobra.Command for `docker diff`
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func NewDiffCommand(dockerCli *command.DockerCli) *cobra.Command {
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var opts diffOptions
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return &cobra.Command{
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Use: "diff CONTAINER",
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Short: "Inspect changes to files or directories on a container's filesystem",
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Args: cli.ExactArgs(1),
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RunE: func(cmd *cobra.Command, args []string) error {
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opts.container = args[0]
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return runDiff(dockerCli, &opts)
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},
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}
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}
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func runDiff(dockerCli *command.DockerCli, opts *diffOptions) error {
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if opts.container == "" {
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return errors.New("Container name cannot be empty")
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}
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ctx := context.Background()
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changes, err := dockerCli.Client().ContainerDiff(ctx, opts.container)
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if err != nil {
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return err
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}
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for _, change := range changes {
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var kind string
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switch change.Kind {
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case archive.ChangeModify:
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kind = "C"
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case archive.ChangeAdd:
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kind = "A"
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case archive.ChangeDelete:
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kind = "D"
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}
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fmt.Fprintln(dockerCli.Out(), kind, change.Path)
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}
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return nil
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}
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