github.com/ali-iotechsys/cli@v20.10.0+incompatible/cli/command/network/list.go (about)

     1  package network
     2  
     3  import (
     4  	"context"
     5  	"sort"
     6  
     7  	"github.com/docker/cli/cli"
     8  	"github.com/docker/cli/cli/command"
     9  	"github.com/docker/cli/cli/command/formatter"
    10  	"github.com/docker/cli/opts"
    11  	"github.com/docker/docker/api/types"
    12  	"github.com/fvbommel/sortorder"
    13  	"github.com/spf13/cobra"
    14  )
    15  
    16  type listOptions struct {
    17  	quiet   bool
    18  	noTrunc bool
    19  	format  string
    20  	filter  opts.FilterOpt
    21  }
    22  
    23  func newListCommand(dockerCli command.Cli) *cobra.Command {
    24  	options := listOptions{filter: opts.NewFilterOpt()}
    25  
    26  	cmd := &cobra.Command{
    27  		Use:     "ls [OPTIONS]",
    28  		Aliases: []string{"list"},
    29  		Short:   "List networks",
    30  		Args:    cli.NoArgs,
    31  		RunE: func(cmd *cobra.Command, args []string) error {
    32  			return runList(dockerCli, options)
    33  		},
    34  	}
    35  
    36  	flags := cmd.Flags()
    37  	flags.BoolVarP(&options.quiet, "quiet", "q", false, "Only display network IDs")
    38  	flags.BoolVar(&options.noTrunc, "no-trunc", false, "Do not truncate the output")
    39  	flags.StringVar(&options.format, "format", "", "Pretty-print networks using a Go template")
    40  	flags.VarP(&options.filter, "filter", "f", "Provide filter values (e.g. 'driver=bridge')")
    41  
    42  	return cmd
    43  }
    44  
    45  func runList(dockerCli command.Cli, options listOptions) error {
    46  	client := dockerCli.Client()
    47  	listOptions := types.NetworkListOptions{Filters: options.filter.Value()}
    48  	networkResources, err := client.NetworkList(context.Background(), listOptions)
    49  	if err != nil {
    50  		return err
    51  	}
    52  
    53  	format := options.format
    54  	if len(format) == 0 {
    55  		if len(dockerCli.ConfigFile().NetworksFormat) > 0 && !options.quiet {
    56  			format = dockerCli.ConfigFile().NetworksFormat
    57  		} else {
    58  			format = formatter.TableFormatKey
    59  		}
    60  	}
    61  
    62  	sort.Slice(networkResources, func(i, j int) bool {
    63  		return sortorder.NaturalLess(networkResources[i].Name, networkResources[j].Name)
    64  	})
    65  
    66  	networksCtx := formatter.Context{
    67  		Output: dockerCli.Out(),
    68  		Format: NewFormat(format, options.quiet),
    69  		Trunc:  !options.noTrunc,
    70  	}
    71  	return FormatWrite(networksCtx, networkResources)
    72  }