package system import ( "errors" "github.com/docker/cli/cli" "github.com/docker/cli/cli/command" "github.com/docker/cli/cli/command/formatter" "github.com/spf13/cobra" "golang.org/x/net/context" ) type diskUsageOptions struct { verbose bool format string } // newDiskUsageCommand creates a new cobra.Command for `docker df` func newDiskUsageCommand(dockerCli *command.DockerCli) *cobra.Command { var opts diskUsageOptions cmd := &cobra.Command{ Use: "df [OPTIONS]", Short: "Show docker disk usage", Args: cli.NoArgs, RunE: func(cmd *cobra.Command, args []string) error { return runDiskUsage(dockerCli, opts) }, Tags: map[string]string{"version": "1.25"}, } flags := cmd.Flags() flags.BoolVarP(&opts.verbose, "verbose", "v", false, "Show detailed information on space usage") flags.StringVar(&opts.format, "format", "", "Pretty-print images using a Go template") return cmd } func runDiskUsage(dockerCli *command.DockerCli, opts diskUsageOptions) error { if opts.verbose && len(opts.format) != 0 { return errors.New("the verbose and the format options conflict") } du, err := dockerCli.Client().DiskUsage(context.Background()) if err != nil { return err } format := opts.format if len(format) == 0 { format = formatter.TableFormatKey } duCtx := formatter.DiskUsageContext{ Context: formatter.Context{ Output: dockerCli.Out(), Format: formatter.NewDiskUsageFormat(format), }, LayersSize: du.LayersSize, BuilderSize: du.BuilderSize, Images: du.Images, Containers: du.Containers, Volumes: du.Volumes, Verbose: opts.verbose, } return duCtx.Write() }