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Make volume ls output order

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Fixes: #20384
Add order support for volume ls to make it easy
to external users to consume.

Signed-off-by: Kai Qiang Wu(Kennan) <wkqwu@cn.ibm.com>
This commit is contained in:
Kai Qiang Wu(Kennan) 2016-02-17 08:59:53 +00:00
parent 2a9e6ace70
commit 60ffd6c880
2 changed files with 31 additions and 6 deletions
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10
api/client/volume.go
View file

@ -2,6 +2,7 @@ package client
import (
"fmt"
"sort"
"text/tabwriter"
Cli "github.com/docker/docker/cli"
@ -72,6 +73,7 @@ func (cli *DockerCli) CmdVolumeLs(args ...string) error {
fmt.Fprintf(w, "\n")
}
sort.Sort(byVolumeName(volumes.Volumes))
for _, vol := range volumes.Volumes {
if *quiet {
fmt.Fprintln(w, vol.Name)
@ -83,6 +85,14 @@ func (cli *DockerCli) CmdVolumeLs(args ...string) error {
return nil
}
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
}
// CmdVolumeInspect displays low-level information on one or more volumes.
//
// Usage: docker volume inspect [OPTIONS] VOLUME [VOLUME...]

27
integration-cli/docker_cli_volume_test.go
View file

@ -65,19 +65,34 @@ func (s *DockerSuite) TestVolumeCliInspectMulti(c *check.C) {
func (s *DockerSuite) TestVolumeCliLs(c *check.C) {
prefix, _ := getPrefixAndSlashFromDaemonPlatform()
out, _ := dockerCmd(c, "volume", "create")
id := strings.TrimSpace(out)
out, _ := dockerCmd(c, "volume", "create", "--name", "aaa")
dockerCmd(c, "volume", "create", "--name", "test")
dockerCmd(c, "run", "-v", prefix+"/foo", "busybox", "ls", "/")
dockerCmd(c, "volume", "create", "--name", "soo")
dockerCmd(c, "run", "-v", "soo:"+prefix+"/foo", "busybox", "ls", "/")
out, _ = dockerCmd(c, "volume", "ls")
outArr := strings.Split(strings.TrimSpace(out), "\n")
c.Assert(len(outArr), check.Equals, 4, check.Commentf("\n%s", out))
// Since there is no guarantee of ordering of volumes, we just make sure the names are in the output
c.Assert(strings.Contains(out, id+"\n"), check.Equals, true)
c.Assert(strings.Contains(out, "test\n"), check.Equals, true)
assertVolList(c, out, []string{"aaa", "soo", "test"})
}
// assertVolList checks volume retrieved with ls command
// equals to expected volume list
// note: out should be `volume ls [option]` result
func assertVolList(c *check.C, out string, expectVols []string) {
lines := strings.Split(out, "\n")
var volList []string
for _, line := range lines[1 : len(lines)-1] {
volFields := strings.Fields(line)
// wrap all volume name in volList
volList = append(volList, volFields[1])
}
// volume ls should contains all expected volumes
c.Assert(volList, checker.DeepEquals, expectVols)
}
func (s *DockerSuite) TestVolumeCliLsFilterDangling(c *check.C) {