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package main
import (
"fmt"
"github.com/containers/libpod/cmd/podman/cliconfig"
"github.com/containers/libpod/pkg/adapter"
"github.com/pkg/errors"
"github.com/spf13/cobra"
)
var (
treeCommand cliconfig.TreeValues
treeDescription = "Prints layer hierarchy of an image in a tree format"
_treeCommand = &cobra.Command{
Use: "tree [flags] IMAGE",
Short: treeDescription,
Long: treeDescription,
RunE: func(cmd *cobra.Command, args []string) error {
treeCommand.InputArgs = args
treeCommand.GlobalFlags = MainGlobalOpts
treeCommand.Remote = remoteclient
return treeCmd(&treeCommand)
},
Example: "podman image tree alpine:latest",
}
)
func init() {
treeCommand.Command = _treeCommand
treeCommand.SetUsageTemplate(UsageTemplate())
treeCommand.Flags().BoolVar(&treeCommand.WhatRequires, "whatrequires", false, "Show all child images and layers of the specified image")
}
func treeCmd(c *cliconfig.TreeValues) error {
args := c.InputArgs
if len(args) == 0 {
return errors.Errorf("an image name must be specified")
}
if len(args) > 1 {
return errors.Errorf("you must provide at most 1 argument")
}
runtime, err := adapter.GetRuntime(getContext(), &c.PodmanCommand)
if err != nil {
return errors.Wrapf(err, "error creating libpod runtime")
}
defer runtime.DeferredShutdown(false)
tree, err := runtime.ImageTree(c.InputArgs[0], c.WhatRequires)
if err != nil {
return err
}
fmt.Print(tree)
return nil
}
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