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package images
import (
"github.com/containers/libpod/cmd/podmanV2/registry"
"github.com/containers/libpod/cmd/podmanV2/report"
"github.com/containers/libpod/pkg/domain/entities"
"github.com/pkg/errors"
"github.com/spf13/cobra"
)
var (
// podman container _inspect_
diffCmd = &cobra.Command{
Use: "diff [flags] CONTAINER",
Args: registry.IdOrLatestArgs,
Short: "Inspect changes on image's file systems",
Long: `Displays changes on a image's filesystem. The image will be compared to its parent layer.`,
PreRunE: preRunE,
RunE: diff,
Example: `podman image diff myImage
podman image diff --format json redis:alpine`,
}
diffOpts *entities.DiffOptions
)
func init() {
registry.Commands = append(registry.Commands, registry.CliCommand{
Mode: []entities.EngineMode{entities.ABIMode, entities.TunnelMode},
Command: diffCmd,
Parent: imageCmd,
})
diffOpts = &entities.DiffOptions{}
flags := diffCmd.Flags()
flags.BoolVar(&diffOpts.Archive, "archive", true, "Save the diff as a tar archive")
_ = flags.MarkHidden("archive")
flags.StringVar(&diffOpts.Format, "format", "", "Change the output format")
}
func diff(cmd *cobra.Command, args []string) error {
if len(args) == 0 && !diffOpts.Latest {
return errors.New("image must be specified: podman image diff [options [...]] ID-NAME")
}
results, err := registry.ImageEngine().Diff(registry.GetContext(), args[0], entities.DiffOptions{})
if err != nil {
return err
}
switch diffOpts.Format {
case "":
return report.ChangesToTable(results)
case "json":
return report.ChangesToJSON(results)
default:
return errors.New("only supported value for '--format' is 'json'")
}
}
func Diff(cmd *cobra.Command, args []string, options entities.DiffOptions) error {
diffOpts = &options
return diff(cmd, args)
}
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