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moby--moby/api/client/images.go
David Calavera 8b15839ee8 Create interface that clients that talk to the api must fulfill.
Signed-off-by: David Calavera <david.calavera@gmail.com>
2015-12-09 12:04:58 -05:00

124 lines
3.5 KiB
Go

package client
import (
"fmt"
"strings"
"text/tabwriter"
"time"
"github.com/docker/distribution/reference"
"github.com/docker/docker/api/types"
Cli "github.com/docker/docker/cli"
"github.com/docker/docker/opts"
flag "github.com/docker/docker/pkg/mflag"
"github.com/docker/docker/pkg/parsers/filters"
"github.com/docker/docker/pkg/stringid"
"github.com/docker/docker/pkg/units"
)
// CmdImages lists the images in a specified repository, or all top-level images if no repository is specified.
//
// Usage: docker images [OPTIONS] [REPOSITORY]
func (cli *DockerCli) CmdImages(args ...string) error {
cmd := Cli.Subcmd("images", []string{"[REPOSITORY[:TAG]]"}, Cli.DockerCommands["images"].Description, true)
quiet := cmd.Bool([]string{"q", "-quiet"}, false, "Only show numeric IDs")
all := cmd.Bool([]string{"a", "-all"}, false, "Show all images (default hides intermediate images)")
noTrunc := cmd.Bool([]string{"-no-trunc"}, false, "Don't truncate output")
showDigests := cmd.Bool([]string{"-digests"}, false, "Show digests")
flFilter := opts.NewListOpts(nil)
cmd.Var(&flFilter, []string{"f", "-filter"}, "Filter output based on conditions provided")
cmd.Require(flag.Max, 1)
cmd.ParseFlags(args, true)
// Consolidate all filter flags, and sanity check them early.
// They'll get process in the daemon/server.
imageFilterArgs := filters.NewArgs()
for _, f := range flFilter.GetAll() {
var err error
imageFilterArgs, err = filters.ParseFlag(f, imageFilterArgs)
if err != nil {
return err
}
}
var matchName string
if cmd.NArg() == 1 {
matchName = cmd.Arg(0)
}
options := types.ImageListOptions{
MatchName: matchName,
All: *all,
Filters: imageFilterArgs,
}
images, err := cli.client.ImageList(options)
if err != nil {
return err
}
w := tabwriter.NewWriter(cli.out, 20, 1, 3, ' ', 0)
if !*quiet {
if *showDigests {
fmt.Fprintln(w, "REPOSITORY\tTAG\tDIGEST\tIMAGE ID\tCREATED\tSIZE")
} else {
fmt.Fprintln(w, "REPOSITORY\tTAG\tIMAGE ID\tCREATED\tSIZE")
}
}
for _, image := range images {
ID := image.ID
if !*noTrunc {
ID = stringid.TruncateID(ID)
}
repoTags := image.RepoTags
repoDigests := image.RepoDigests
if len(repoTags) == 1 && repoTags[0] == "<none>:<none>" && len(repoDigests) == 1 && repoDigests[0] == "<none>@<none>" {
// dangling image - clear out either repoTags or repoDigsts so we only show it once below
repoDigests = []string{}
}
// combine the tags and digests lists
tagsAndDigests := append(repoTags, repoDigests...)
for _, repoAndRef := range tagsAndDigests {
// default repo, tag, and digest to none - if there's a value, it'll be set below
repo := "<none>"
tag := "<none>"
digest := "<none>"
if !strings.HasPrefix(repoAndRef, "<none>") {
ref, err := reference.ParseNamed(repoAndRef)
if err != nil {
return err
}
repo = ref.Name()
switch x := ref.(type) {
case reference.Digested:
digest = x.Digest().String()
case reference.Tagged:
tag = x.Tag()
}
}
if !*quiet {
if *showDigests {
fmt.Fprintf(w, "%s\t%s\t%s\t%s\t%s ago\t%s\n", repo, tag, digest, ID, units.HumanDuration(time.Now().UTC().Sub(time.Unix(int64(image.Created), 0))), units.HumanSize(float64(image.Size)))
} else {
fmt.Fprintf(w, "%s\t%s\t%s\t%s ago\t%s\n", repo, tag, ID, units.HumanDuration(time.Now().UTC().Sub(time.Unix(int64(image.Created), 0))), units.HumanSize(float64(image.Size)))
}
} else {
fmt.Fprintln(w, ID)
}
}
}
if !*quiet {
w.Flush()
}
return nil
}