/
list.go
86 lines (71 loc) · 1.9 KB
/
list.go
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package volume
import (
"fmt"
"sort"
"text/tabwriter"
"golang.org/x/net/context"
"github.com/docker/docker/api/client"
"github.com/docker/docker/cli"
"github.com/docker/engine-api/types"
"github.com/docker/engine-api/types/filters"
"github.com/spf13/cobra"
)
type byVolumeName []*types.Volume
func (r byVolumeName) Len() int { return len(r) }
func (r byVolumeName) Swap(i, j int) { r[i], r[j] = r[j], r[i] }
func (r byVolumeName) Less(i, j int) bool {
return r[i].Name < r[j].Name
}
type listOptions struct {
quiet bool
filter []string
}
func newListCommand(dockerCli *client.DockerCli) *cobra.Command {
var opts listOptions
cmd := &cobra.Command{
Use: "ls",
Aliases: []string{"list"},
Short: "List volumes",
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 volume names")
flags.StringSliceVarP(&opts.filter, "filter", "f", []string{}, "Provide filter values (i.e. 'dangling=true')")
return cmd
}
func runList(dockerCli *client.DockerCli, opts listOptions) error {
client := dockerCli.Client()
volFilterArgs := filters.NewArgs()
for _, f := range opts.filter {
var err error
volFilterArgs, err = filters.ParseFlag(f, volFilterArgs)
if err != nil {
return err
}
}
volumes, err := client.VolumeList(context.Background(), volFilterArgs)
if err != nil {
return err
}
w := tabwriter.NewWriter(dockerCli.Out(), 20, 1, 3, ' ', 0)
if !opts.quiet {
for _, warn := range volumes.Warnings {
fmt.Fprintln(dockerCli.Err(), warn)
}
fmt.Fprintf(w, "DRIVER \tVOLUME NAME")
fmt.Fprintf(w, "\n")
}
sort.Sort(byVolumeName(volumes.Volumes))
for _, vol := range volumes.Volumes {
if opts.quiet {
fmt.Fprintln(w, vol.Name)
continue
}
fmt.Fprintf(w, "%s\t%s\n", vol.Driver, vol.Name)
}
w.Flush()
return nil
}