66 lines
1.8 KiB
Go
66 lines
1.8 KiB
Go
package images
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import (
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"github.com/containers/podman/v2/cmd/podman/registry"
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"github.com/containers/podman/v2/cmd/podman/report"
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"github.com/containers/podman/v2/pkg/domain/entities"
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"github.com/pkg/errors"
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"github.com/spf13/cobra"
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"github.com/spf13/pflag"
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)
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var (
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// podman container _inspect_
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diffCmd = &cobra.Command{
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Use: "diff [flags] IMAGE",
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Args: cobra.ExactArgs(1),
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Short: "Inspect changes to the image's file systems",
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Long: `Displays changes to the image's filesystem. The image will be compared to its parent layer.`,
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RunE: diff,
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Example: `podman image diff myImage
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podman image diff --format json redis:alpine`,
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}
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diffOpts *entities.DiffOptions
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)
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func init() {
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registry.Commands = append(registry.Commands, registry.CliCommand{
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Mode: []entities.EngineMode{entities.ABIMode, entities.TunnelMode},
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Command: diffCmd,
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Parent: imageCmd,
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})
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diffFlags(diffCmd.Flags())
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}
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func diffFlags(flags *pflag.FlagSet) {
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diffOpts = &entities.DiffOptions{}
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flags.BoolVar(&diffOpts.Archive, "archive", true, "Save the diff as a tar archive")
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_ = flags.MarkDeprecated("archive", "Provided for backwards compatibility, has no impact on output.")
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flags.StringVar(&diffOpts.Format, "format", "", "Change the output format")
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}
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func diff(cmd *cobra.Command, args []string) error {
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if diffOpts.Latest {
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return errors.New("image diff does not support --latest")
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}
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results, err := registry.ImageEngine().Diff(registry.GetContext(), args[0], *diffOpts)
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if err != nil {
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return err
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}
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switch diffOpts.Format {
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case "":
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return report.ChangesToTable(results)
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case "json":
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return report.ChangesToJSON(results)
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default:
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return errors.New("only supported value for '--format' is 'json'")
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}
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}
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func Diff(cmd *cobra.Command, args []string, options entities.DiffOptions) error {
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diffOpts = &options
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return diff(cmd, args)
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}
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