103 lines
2.4 KiB
Go
103 lines
2.4 KiB
Go
package storage
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import (
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"context"
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"path"
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dcontext "github.com/distribution/distribution/v3/context"
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"github.com/distribution/distribution/v3/registry/storage/driver"
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"github.com/opencontainers/go-digest"
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)
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// vacuum contains functions for cleaning up repositories and blobs
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// These functions will only reliably work on strongly consistent
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// storage systems.
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// https://en.wikipedia.org/wiki/Consistency_model
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// NewVacuum creates a new Vacuum
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func NewVacuum(ctx context.Context, driver driver.StorageDriver) Vacuum {
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return Vacuum{
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ctx: ctx,
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driver: driver,
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}
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}
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// Vacuum removes content from the filesystem
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type Vacuum struct {
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driver driver.StorageDriver
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ctx context.Context
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}
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// RemoveBlob removes a blob from the filesystem
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func (v Vacuum) RemoveBlob(dgst string) error {
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d, err := digest.Parse(dgst)
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if err != nil {
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return err
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}
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blobPath, err := pathFor(blobPathSpec{digest: d})
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if err != nil {
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return err
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}
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dcontext.GetLogger(v.ctx).Infof("Deleting blob: %s", blobPath)
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err = v.driver.Delete(v.ctx, blobPath)
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if err != nil {
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return err
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}
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return nil
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}
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// RemoveManifest removes a manifest from the filesystem
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func (v Vacuum) RemoveManifest(name string, dgst digest.Digest, tags []string) error {
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// remove a tag manifest reference, in case of not found continue to next one
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for _, tag := range tags {
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tagsPath, err := pathFor(manifestTagIndexEntryPathSpec{name: name, revision: dgst, tag: tag})
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if err != nil {
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return err
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}
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_, err = v.driver.Stat(v.ctx, tagsPath)
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if err != nil {
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switch err := err.(type) {
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case driver.PathNotFoundError:
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continue
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default:
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return err
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}
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}
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dcontext.GetLogger(v.ctx).Infof("deleting manifest tag reference: %s", tagsPath)
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err = v.driver.Delete(v.ctx, tagsPath)
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if err != nil {
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return err
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}
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}
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manifestPath, err := pathFor(manifestRevisionPathSpec{name: name, revision: dgst})
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if err != nil {
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return err
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}
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dcontext.GetLogger(v.ctx).Infof("deleting manifest: %s", manifestPath)
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return v.driver.Delete(v.ctx, manifestPath)
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}
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// RemoveRepository removes a repository directory from the
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// filesystem
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func (v Vacuum) RemoveRepository(repoName string) error {
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rootForRepository, err := pathFor(repositoriesRootPathSpec{})
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if err != nil {
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return err
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}
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repoDir := path.Join(rootForRepository, repoName)
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dcontext.GetLogger(v.ctx).Infof("Deleting repo: %s", repoDir)
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err = v.driver.Delete(v.ctx, repoDir)
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if err != nil {
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return err
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}
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return nil
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}
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