package network import ( "sort" "golang.org/x/net/context" "github.com/docker/docker/api/types" "github.com/docker/docker/cli" "github.com/docker/docker/cli/command" "github.com/docker/docker/cli/command/formatter" "github.com/docker/docker/opts" "github.com/spf13/cobra" ) type byNetworkName []types.NetworkResource func (r byNetworkName) Len() int { return len(r) } func (r byNetworkName) Swap(i, j int) { r[i], r[j] = r[j], r[i] } func (r byNetworkName) Less(i, j int) bool { return r[i].Name < r[j].Name } type listOptions struct { quiet bool noTrunc bool format string filter opts.FilterOpt } func newListCommand(dockerCli *command.DockerCli) *cobra.Command { opts := listOptions{filter: opts.NewFilterOpt()} cmd := &cobra.Command{ Use: "ls [OPTIONS]", Aliases: []string{"list"}, Short: "List networks", Args: cli.NoArgs, RunE: func(cmd *cobra.Command, args []string) error { return runList(dockerCli, opts) }, } flags := cmd.Flags() flags.BoolVarP(&opts.quiet, "quiet", "q", false, "Only display network IDs") flags.BoolVar(&opts.noTrunc, "no-trunc", false, "Do not truncate the output") flags.StringVar(&opts.format, "format", "", "Pretty-print networks using a Go template") flags.VarP(&opts.filter, "filter", "f", "Provide filter values (i.e. 'dangling=true')") return cmd } func runList(dockerCli *command.DockerCli, opts listOptions) error { client := dockerCli.Client() options := types.NetworkListOptions{Filters: opts.filter.Value()} networkResources, err := client.NetworkList(context.Background(), options) if err != nil { return err } format := opts.format if len(format) == 0 { if len(dockerCli.ConfigFile().NetworksFormat) > 0 && !opts.quiet { format = dockerCli.ConfigFile().NetworksFormat } else { format = formatter.TableFormatKey } } sort.Sort(byNetworkName(networkResources)) networksCtx := formatter.Context{ Output: dockerCli.Out(), Format: formatter.NewNetworkFormat(format, opts.quiet), Trunc: !opts.noTrunc, } return formatter.NetworkWrite(networksCtx, networkResources) }