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/*
Copyright 2020 Docker Compose CLI authors
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package compose
import (
"context"
"fmt"
"strings"
"sync"
"github.com/distribution/reference"
moby "github.com/docker/docker/api/types"
containerType "github.com/docker/docker/api/types/container"
"github.com/docker/docker/api/types/filters"
"github.com/docker/docker/errdefs"
"golang.org/x/sync/errgroup"
"github.com/docker/compose/v2/pkg/api"
"github.com/docker/compose/v2/pkg/utils"
)
func (s *composeService) Images(ctx context.Context, projectName string, options api.ImagesOptions) ([]api.ImageSummary, error) {
projectName = strings.ToLower(projectName)
allContainers, err := s.apiClient().ContainerList(ctx, containerType.ListOptions{
All: true,
Filters: filters.NewArgs(projectFilter(projectName)),
})
if err != nil {
return nil, err
}
containers := []moby.Container{}
if len(options.Services) > 0 {
// filter service containers
for _, c := range allContainers {
if utils.StringContains(options.Services, c.Labels[api.ServiceLabel]) {
containers = append(containers, c)
}
}
} else {
containers = allContainers
}
images := []string{}
for _, c := range containers {
if !utils.StringContains(images, c.Image) {
images = append(images, c.Image)
}
}
imageSummaries, err := s.getImageSummaries(ctx, images)
if err != nil {
return nil, err
}
summary := make([]api.ImageSummary, len(containers))
for i, container := range containers {
img, ok := imageSummaries[container.Image]
if !ok {
return nil, fmt.Errorf("failed to retrieve image for container %s", getCanonicalContainerName(container))
}
summary[i] = img
summary[i].ContainerName = getCanonicalContainerName(container)
}
return summary, nil
}
func (s *composeService) getImageSummaries(ctx context.Context, repoTags []string) (map[string]api.ImageSummary, error) {
summary := map[string]api.ImageSummary{}
l := sync.Mutex{}
eg, ctx := errgroup.WithContext(ctx)
for _, repoTag := range repoTags {
repoTag := repoTag
eg.Go(func() error {
inspect, _, err := s.apiClient().ImageInspectWithRaw(ctx, repoTag)
if err != nil {
if errdefs.IsNotFound(err) {
return nil
}
return fmt.Errorf("unable to get image '%s': %w", repoTag, err)
}
tag := ""
repository := ""
ref, err := reference.ParseDockerRef(repoTag)
if err == nil {
// ParseDockerRef will reject a local image ID
repository = reference.FamiliarName(ref)
if tagged, ok := ref.(reference.Tagged); ok {
tag = tagged.Tag()
}
}
l.Lock()
summary[repoTag] = api.ImageSummary{
ID: inspect.ID,
Repository: repository,
Tag: tag,
Size: inspect.Size,
}
l.Unlock()
return nil
})
}
return summary, eg.Wait()
}
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