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moby--moby/graph/list.go

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package graph
import (
"fmt"
"path"
"sort"
"strings"
"github.com/Sirupsen/logrus"
"github.com/docker/docker/api/types"
"github.com/docker/docker/image"
"github.com/docker/docker/pkg/parsers/filters"
"github.com/docker/docker/utils"
)
var acceptedImageFilterTags = map[string]struct{}{
"dangling": {},
"label": {},
}
type ImagesConfig struct {
Filters string
Filter string
All bool
}
type ByCreated []*types.Image
func (r ByCreated) Len() int { return len(r) }
func (r ByCreated) Swap(i, j int) { r[i], r[j] = r[j], r[i] }
func (r ByCreated) Less(i, j int) bool { return r[i].Created < r[j].Created }
func (s *TagStore) Images(config *ImagesConfig) ([]*types.Image, error) {
var (
allImages map[string]*image.Image
err error
filtTagged = true
filtLabel = false
)
imageFilters, err := filters.FromParam(config.Filters)
if err != nil {
return nil, err
}
for name := range imageFilters {
if _, ok := acceptedImageFilterTags[name]; !ok {
return nil, fmt.Errorf("Invalid filter '%s'", name)
}
}
if i, ok := imageFilters["dangling"]; ok {
for _, value := range i {
if strings.ToLower(value) == "true" {
filtTagged = false
}
}
}
_, filtLabel = imageFilters["label"]
if config.All && filtTagged {
allImages, err = s.graph.Map()
} else {
allImages, err = s.graph.Heads()
}
if err != nil {
return nil, err
}
lookup := make(map[string]*types.Image)
s.Lock()
for repoName, repository := range s.Repositories {
if config.Filter != "" {
if match, _ := path.Match(config.Filter, repoName); !match {
continue
}
}
for ref, id := range repository {
imgRef := utils.ImageReference(repoName, ref)
image, err := s.graph.Get(id)
if err != nil {
logrus.Warnf("couldn't load %s from %s: %s", id, imgRef, err)
continue
}
if lImage, exists := lookup[id]; exists {
if filtTagged {
if utils.DigestReference(ref) {
lImage.RepoDigests = append(lImage.RepoDigests, imgRef)
} else { // Tag Ref.
lImage.RepoTags = append(lImage.RepoTags, imgRef)
}
}
} else {
// get the boolean list for if only the untagged images are requested
delete(allImages, id)
if !imageFilters.MatchKVList("label", image.ContainerConfig.Labels) {
continue
}
if filtTagged {
newImage := new(types.Image)
newImage.ParentId = image.Parent
newImage.ID = image.ID
newImage.Created = int(image.Created.Unix())
newImage.Size = int(image.Size)
newImage.VirtualSize = int(s.graph.GetParentsSize(image, 0) + image.Size)
newImage.Labels = image.ContainerConfig.Labels
if utils.DigestReference(ref) {
newImage.RepoTags = []string{}
newImage.RepoDigests = []string{imgRef}
} else {
newImage.RepoTags = []string{imgRef}
newImage.RepoDigests = []string{}
}
lookup[id] = newImage
}
}
}
}
s.Unlock()
images := []*types.Image{}
for _, value := range lookup {
images = append(images, value)
}
// Display images which aren't part of a repository/tag
if config.Filter == "" || filtLabel {
for _, image := range allImages {
if !imageFilters.MatchKVList("label", image.ContainerConfig.Labels) {
continue
}
newImage := new(types.Image)
newImage.ParentId = image.Parent
newImage.RepoTags = []string{"<none>:<none>"}
newImage.RepoDigests = []string{"<none>@<none>"}
newImage.ID = image.ID
newImage.Created = int(image.Created.Unix())
newImage.Size = int(image.Size)
newImage.VirtualSize = int(s.graph.GetParentsSize(image, 0) + image.Size)
newImage.Labels = image.ContainerConfig.Labels
images = append(images, newImage)
}
}
sort.Sort(sort.Reverse(ByCreated(images)))
return images, nil
}