distribution/registry/storage/vacuum.go
Andrew T Nguyen feab4aafbc Implements garbage collection subcommand
- Includes a change in the command to run the registry. The registry
  server itself is now started up as a subcommand.
- Includes changes to the high level interfaces to support enumeration
  of various registry objects.

Signed-off-by: Andrew T Nguyen <andrew.nguyen@docker.com>
2016-02-29 14:15:21 -08:00

67 lines
1.5 KiB
Go

package storage
import (
"path"
"github.com/docker/distribution/context"
"github.com/docker/distribution/digest"
"github.com/docker/distribution/registry/storage/driver"
)
// vacuum contains functions for cleaning up repositories and blobs
// These functions will only reliably work on strongly consistent
// storage systems.
// https://en.wikipedia.org/wiki/Consistency_model
// NewVacuum creates a new Vacuum
func NewVacuum(ctx context.Context, driver driver.StorageDriver) Vacuum {
return Vacuum{
ctx: ctx,
driver: driver,
}
}
// Vacuum removes content from the filesystem
type Vacuum struct {
driver driver.StorageDriver
ctx context.Context
}
// RemoveBlob removes a blob from the filesystem
func (v Vacuum) RemoveBlob(dgst string) error {
d, err := digest.ParseDigest(dgst)
if err != nil {
return err
}
blobPath, err := pathFor(blobPathSpec{digest: d})
if err != nil {
return err
}
context.GetLogger(v.ctx).Infof("Deleting blob: %s", blobPath)
err = v.driver.Delete(v.ctx, blobPath)
if err != nil {
return err
}
return nil
}
// RemoveRepository removes a repository directory from the
// filesystem
func (v Vacuum) RemoveRepository(repoName string) error {
rootForRepository, err := pathFor(repositoriesRootPathSpec{})
if err != nil {
return err
}
repoDir := path.Join(rootForRepository, repoName)
context.GetLogger(v.ctx).Infof("Deleting repo: %s", repoDir)
err = v.driver.Delete(v.ctx, repoDir)
if err != nil {
return err
}
return nil
}