| package volume |
| |
| import ( |
| "fmt" |
| |
| "golang.org/x/net/context" |
| |
| "github.com/docker/docker/api/types/filters" |
| "github.com/docker/docker/cli" |
| "github.com/docker/docker/cli/command" |
| units "github.com/docker/go-units" |
| "github.com/spf13/cobra" |
| ) |
| |
| type pruneOptions struct { |
| force bool |
| } |
| |
| // NewPruneCommand returns a new cobra prune command for volumes |
| func NewPruneCommand(dockerCli *command.DockerCli) *cobra.Command { |
| var opts pruneOptions |
| |
| cmd := &cobra.Command{ |
| Use: "prune [OPTIONS]", |
| Short: "Remove all unused volumes", |
| Args: cli.NoArgs, |
| RunE: func(cmd *cobra.Command, args []string) error { |
| spaceReclaimed, output, err := runPrune(dockerCli, opts) |
| if err != nil { |
| return err |
| } |
| if output != "" { |
| fmt.Fprintln(dockerCli.Out(), output) |
| } |
| fmt.Fprintln(dockerCli.Out(), "Total reclaimed space:", units.HumanSize(float64(spaceReclaimed))) |
| return nil |
| }, |
| Tags: map[string]string{"version": "1.25"}, |
| } |
| |
| flags := cmd.Flags() |
| flags.BoolVarP(&opts.force, "force", "f", false, "Do not prompt for confirmation") |
| |
| return cmd |
| } |
| |
| const warning = `WARNING! This will remove all volumes not used by at least one container. |
| Are you sure you want to continue?` |
| |
| func runPrune(dockerCli *command.DockerCli, opts pruneOptions) (spaceReclaimed uint64, output string, err error) { |
| if !opts.force && !command.PromptForConfirmation(dockerCli.In(), dockerCli.Out(), warning) { |
| return |
| } |
| |
| report, err := dockerCli.Client().VolumesPrune(context.Background(), filters.Args{}) |
| if err != nil { |
| return |
| } |
| |
| if len(report.VolumesDeleted) > 0 { |
| output = "Deleted Volumes:\n" |
| for _, id := range report.VolumesDeleted { |
| output += id + "\n" |
| } |
| spaceReclaimed = report.SpaceReclaimed |
| } |
| |
| return |
| } |
| |
| // RunPrune calls the Volume Prune API |
| // This returns the amount of space reclaimed and a detailed output string |
| func RunPrune(dockerCli *command.DockerCli) (uint64, string, error) { |
| return runPrune(dockerCli, pruneOptions{force: true}) |
| } |