109 lines
2.5 KiB
Go
109 lines
2.5 KiB
Go
package volume
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import (
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"sort"
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"golang.org/x/net/context"
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"github.com/docker/docker/api/client"
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"github.com/docker/docker/api/client/formatter"
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"github.com/docker/docker/cli"
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"github.com/docker/engine-api/types"
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"github.com/docker/engine-api/types/filters"
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"github.com/spf13/cobra"
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)
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type byVolumeName []*types.Volume
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func (r byVolumeName) Len() int { return len(r) }
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func (r byVolumeName) Swap(i, j int) { r[i], r[j] = r[j], r[i] }
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func (r byVolumeName) Less(i, j int) bool {
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return r[i].Name < r[j].Name
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}
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type listOptions struct {
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quiet bool
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format string
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filter []string
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}
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func newListCommand(dockerCli *client.DockerCli) *cobra.Command {
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var opts listOptions
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cmd := &cobra.Command{
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Use: "ls [OPTIONS]",
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Aliases: []string{"list"},
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Short: "List volumes",
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Long: listDescription,
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Args: cli.NoArgs,
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RunE: func(cmd *cobra.Command, args []string) error {
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return runList(dockerCli, opts)
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},
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}
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flags := cmd.Flags()
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flags.BoolVarP(&opts.quiet, "quiet", "q", false, "Only display volume names")
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flags.StringVar(&opts.format, "format", "", "Pretty-print networks using a Go template")
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flags.StringSliceVarP(&opts.filter, "filter", "f", []string{}, "Provide filter values (e.g. 'dangling=true')")
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return cmd
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}
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func runList(dockerCli *client.DockerCli, opts listOptions) error {
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client := dockerCli.Client()
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volFilterArgs := filters.NewArgs()
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for _, f := range opts.filter {
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var err error
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volFilterArgs, err = filters.ParseFlag(f, volFilterArgs)
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if err != nil {
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return err
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}
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}
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volumes, err := client.VolumeList(context.Background(), volFilterArgs)
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if err != nil {
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return err
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}
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f := opts.format
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if len(f) == 0 {
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if len(dockerCli.ConfigFile().VolumesFormat) > 0 && !opts.quiet {
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f = dockerCli.ConfigFile().VolumesFormat
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} else {
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f = "table"
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}
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}
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sort.Sort(byVolumeName(volumes.Volumes))
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volumeCtx := formatter.VolumeContext{
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Context: formatter.Context{
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Output: dockerCli.Out(),
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Format: f,
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Quiet: opts.quiet,
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},
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Volumes: volumes.Volumes,
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}
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volumeCtx.Write()
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return nil
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}
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var listDescription = `
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Lists all the volumes Docker knows about. You can filter using the **-f** or
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**--filter** flag. The filtering format is a **key=value** pair. To specify
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more than one filter, pass multiple flags (for example,
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**--filter "foo=bar" --filter "bif=baz"**)
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The currently supported filters are:
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* **dangling** (boolean - **true** or **false**, **1** or **0**)
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* **driver** (a volume driver's name)
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* **label** (**label=<key>** or **label=<key>=<value>**)
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* **name** (a volume's name)
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`
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