spiegel_podman/cmd/podman/images/tree.go
Jhon Honce 33944cefe7 [Techinal Debt] Cleanup ABI vs. Tunnel CLI commands
[NO TESTS NEEDED]

This commit cleans up two issues:
* Most commands support all EngineModes so default to that. Let
  outlayers declare their intent.
* Use cobra.Annotations to set supported EngineMode. This simplies
  instantiating commands as there is now one method to communicate a
  commands requirements rather than two.
* Combined aliased commands into one file
* Fixed aliased commands where Args field did not match
* Updated examples in README.md for writing commands
* Remove redundant flag DisableFlagsInUseLine in cobra.Command
  initialization.

Signed-off-by: Jhon Honce <jhonce@redhat.com>
2021-05-27 11:40:43 -07:00

41 lines
1.1 KiB
Go

package images
import (
"fmt"
"github.com/containers/podman/v3/cmd/podman/common"
"github.com/containers/podman/v3/cmd/podman/registry"
"github.com/containers/podman/v3/pkg/domain/entities"
"github.com/spf13/cobra"
)
var (
treeDescription = "Prints layer hierarchy of an image in a tree format"
treeCmd = &cobra.Command{
Use: "tree [options] IMAGE",
Args: cobra.ExactArgs(1),
Short: treeDescription,
Long: treeDescription,
RunE: tree,
ValidArgsFunction: common.AutocompleteImages,
Example: "podman image tree alpine:latest",
}
treeOpts entities.ImageTreeOptions
)
func init() {
registry.Commands = append(registry.Commands, registry.CliCommand{
Command: treeCmd,
Parent: imageCmd,
})
treeCmd.Flags().BoolVar(&treeOpts.WhatRequires, "whatrequires", false, "Show all child images and layers of the specified image")
}
func tree(_ *cobra.Command, args []string) error {
results, err := registry.ImageEngine().Tree(registry.Context(), args[0], treeOpts)
if err != nil {
return err
}
fmt.Println(results.Tree)
return nil
}