package main import ( "bufio" "fmt" "os" "strings" "github.com/containers/libpod/cmd/podman/cliconfig" "github.com/containers/libpod/pkg/adapter" "github.com/pkg/errors" "github.com/spf13/cobra" ) var ( pruneImagesCommand cliconfig.PruneImagesValues pruneImagesDescription = `Removes all unnamed images from local storage. If an image is not being used by a container, it will be removed from the system.` _pruneImagesCommand = &cobra.Command{ Use: "prune", Args: noSubArgs, Short: "Remove unused images", Long: pruneImagesDescription, RunE: func(cmd *cobra.Command, args []string) error { pruneImagesCommand.InputArgs = args pruneImagesCommand.GlobalFlags = MainGlobalOpts pruneImagesCommand.Remote = remoteclient return pruneImagesCmd(&pruneImagesCommand) }, } ) func init() { pruneImagesCommand.Command = _pruneImagesCommand pruneImagesCommand.SetHelpTemplate(HelpTemplate()) pruneImagesCommand.SetUsageTemplate(UsageTemplate()) flags := pruneImagesCommand.Flags() flags.BoolVarP(&pruneImagesCommand.All, "all", "a", false, "Remove all unused images, not just dangling ones") flags.BoolVarP(&pruneImagesCommand.Force, "force", "f", false, "Do not prompt for confirmation") flags.StringArrayVar(&pruneImagesCommand.Filter, "filter", []string{}, "Provide filter values (e.g. 'label==')") } func pruneImagesCmd(c *cliconfig.PruneImagesValues) error { if !c.Force { reader := bufio.NewReader(os.Stdin) fmt.Printf(` WARNING! This will remove all dangling images. Are you sure you want to continue? [y/N] `) ans, err := reader.ReadString('\n') if err != nil { return errors.Wrapf(err, "error reading input") } if strings.ToLower(ans)[0] != 'y' { return nil } } runtime, err := adapter.GetRuntime(getContext(), &c.PodmanCommand) if err != nil { return errors.Wrapf(err, "could not get runtime") } defer runtime.DeferredShutdown(false) // Call prune; if any cids are returned, print them and then // return err in case an error also came up pruneCids, err := runtime.PruneImages(getContext(), c.All, c.Filter) if len(pruneCids) > 0 { for _, cid := range pruneCids { fmt.Println(cid) } } return err }