github.com/olljanat/moby@v1.13.1/cli/command/checkpoint/list.go (about)

     1  package checkpoint
     2  
     3  import (
     4  	"fmt"
     5  	"text/tabwriter"
     6  
     7  	"golang.org/x/net/context"
     8  
     9  	"github.com/docker/docker/api/types"
    10  	"github.com/docker/docker/cli"
    11  	"github.com/docker/docker/cli/command"
    12  	"github.com/spf13/cobra"
    13  )
    14  
    15  type listOptions struct {
    16  	checkpointDir string
    17  }
    18  
    19  func newListCommand(dockerCli *command.DockerCli) *cobra.Command {
    20  	var opts listOptions
    21  
    22  	cmd := &cobra.Command{
    23  		Use:     "ls [OPTIONS] CONTAINER",
    24  		Aliases: []string{"list"},
    25  		Short:   "List checkpoints for a container",
    26  		Args:    cli.ExactArgs(1),
    27  		RunE: func(cmd *cobra.Command, args []string) error {
    28  			return runList(dockerCli, args[0], opts)
    29  		},
    30  	}
    31  
    32  	flags := cmd.Flags()
    33  	flags.StringVarP(&opts.checkpointDir, "checkpoint-dir", "", "", "Use a custom checkpoint storage directory")
    34  
    35  	return cmd
    36  
    37  }
    38  
    39  func runList(dockerCli *command.DockerCli, container string, opts listOptions) error {
    40  	client := dockerCli.Client()
    41  
    42  	listOpts := types.CheckpointListOptions{
    43  		CheckpointDir: opts.checkpointDir,
    44  	}
    45  
    46  	checkpoints, err := client.CheckpointList(context.Background(), container, listOpts)
    47  	if err != nil {
    48  		return err
    49  	}
    50  
    51  	w := tabwriter.NewWriter(dockerCli.Out(), 20, 1, 3, ' ', 0)
    52  	fmt.Fprintf(w, "CHECKPOINT NAME")
    53  	fmt.Fprintf(w, "\n")
    54  
    55  	for _, checkpoint := range checkpoints {
    56  		fmt.Fprintf(w, "%s\t", checkpoint.Name)
    57  		fmt.Fprint(w, "\n")
    58  	}
    59  
    60  	w.Flush()
    61  	return nil
    62  }