moby/cli/command/container/prune.go
Yong Tang a6be56b54e Convert DanglingOnly to Filters for docker image prune
This fix convert DanglingOnly in ImagesPruneConfig to Filters,
so that it is possible to maintain API compatibility in the future.

Several integration tests have been added to cover changes.

This fix is related to 28497.

A follow up to this PR will be done once this PR is merged.

Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
2016-12-02 20:08:49 -08:00

75 lines
1.9 KiB
Go

package container
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 containers
func NewPruneCommand(dockerCli *command.DockerCli) *cobra.Command {
var opts pruneOptions
cmd := &cobra.Command{
Use: "prune [OPTIONS]",
Short: "Remove all stopped containers",
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 stopped containers.
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().ContainersPrune(context.Background(), filters.Args{})
if err != nil {
return
}
if len(report.ContainersDeleted) > 0 {
output = "Deleted Containers:\n"
for _, id := range report.ContainersDeleted {
output += id + "\n"
}
spaceReclaimed = report.SpaceReclaimed
}
return
}
// RunPrune calls the Container 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})
}