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Improved 'docker layers': --help, -q, filtering by name

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This commit is contained in:
Solomon Hykes 2013-01-20 00:37:52 -08:00
parent 8aa2cb7d84
commit 7012f48989
1 changed files with 28 additions and 5 deletions
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33
dockerd/dockerd.go
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@ -51,12 +51,35 @@ func (docker *Docker) CmdHelp(stdin io.ReadCloser, stdout io.Writer, args ...str
}
func (docker *Docker) CmdLayers(stdin io.ReadCloser, stdout io.Writer, args ...string) error {
w := tabwriter.NewWriter(stdout, 20, 1, 3, ' ', 0)
fmt.Fprintf(w, "ID\tNAME\tSIZE\tADDED\n")
for _, layer := range docker.layers {
fmt.Fprintf(w, "%s\t%s\t%.1fM\t%s ago\n", layer.Id, layer.Name, float32(layer.Size) / 1024 / 1024, humanDuration(time.Now().Sub(layer.Added)))
flags := Subcmd(stdout, "layers", "[OPTIONS] [NAME]", "Show available filesystem layers")
quiet := flags.Bool("q", false, "Quiet mode")
flags.Parse(args)
if flags.NArg() > 1 {
flags.Usage()
return nil
}
var nameFilter string
if flags.NArg() == 1 {
nameFilter = flags.Arg(0)
}
if *quiet {
for id, layer := range docker.layers {
if nameFilter != "" && nameFilter != layer.Name {
continue
}
stdout.Write([]byte(id+ "\n"))
}
} else {
w := tabwriter.NewWriter(stdout, 20, 1, 3, ' ', 0)
fmt.Fprintf(w, "ID\tNAME\tSIZE\tADDED\tSOURCE\n")
for _, layer := range docker.layers {
if nameFilter != "" && nameFilter != layer.Name {
continue
}
fmt.Fprintf(w, "%s\t%s\t%.1fM\t%s ago\t%s\n", layer.Id, layer.Name, float32(layer.Size) / 1024 / 1024, humanDuration(time.Now().Sub(layer.Added)), layer.Source)
}
w.Flush()
}
w.Flush()
return nil
}