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https://github.com/podman-container-tools/podman.git
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980b1e87d4
Want to have man pages match commands, since we have lots of printed man pages with using Options, we will change the command line to use Options in --help. Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
67 lines
2 KiB
Go
67 lines
2 KiB
Go
package main
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import (
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"fmt"
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"github.com/containers/podman/v2/cmd/podman/containers"
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"github.com/containers/podman/v2/cmd/podman/images"
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"github.com/containers/podman/v2/cmd/podman/registry"
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"github.com/containers/podman/v2/cmd/podman/validate"
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"github.com/containers/podman/v2/pkg/domain/entities"
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"github.com/spf13/cobra"
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)
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// Inspect is one of the outlier commands in that it operates on images/containers/...
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var (
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// Command: podman _diff_ Object_ID
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diffDescription = `Displays changes on a container or image's filesystem. The container or image will be compared to its parent layer.`
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diffCmd = &cobra.Command{
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Use: "diff [options] {CONTAINER_ID | IMAGE_ID}",
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Args: validate.IDOrLatestArgs,
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Short: "Display the changes to the object's file system",
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Long: diffDescription,
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RunE: diff,
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Example: `podman diff imageID
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podman diff ctrID
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podman 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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})
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flags := diffCmd.Flags()
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flags.BoolVar(&diffOpts.Archive, "archive", true, "Save the diff as a tar archive")
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_ = flags.MarkHidden("archive")
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flags.StringVar(&diffOpts.Format, "format", "", "Change the output format")
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validate.AddLatestFlag(diffCmd, &diffOpts.Latest)
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}
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func diff(cmd *cobra.Command, args []string) error {
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// Latest implies looking for a container
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if diffOpts.Latest {
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return containers.Diff(cmd, args, diffOpts)
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}
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options := entities.ContainerExistsOptions{
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External: true,
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}
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if found, err := registry.ContainerEngine().ContainerExists(registry.GetContext(), args[0], options); err != nil {
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return err
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} else if found.Value {
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return containers.Diff(cmd, args, diffOpts)
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}
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if found, err := registry.ImageEngine().Exists(registry.GetContext(), args[0]); err != nil {
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return err
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} else if found.Value {
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return images.Diff(cmd, args, diffOpts)
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}
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return fmt.Errorf("%s not found on system", args[0])
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}
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