Ejemplo n.º 1
0
// Move moves an object stored at sourcePath to destPath, removing the
// original object.
func (d *driver) Move(context ctx.Context, sourcePath string, destPath string) error {
	prefix := d.pathToDirKey(sourcePath)
	gcsContext := d.context(context)
	keys, err := d.listAll(gcsContext, prefix)
	if err != nil {
		return err
	}
	if len(keys) > 0 {
		destPrefix := d.pathToDirKey(destPath)
		copies := make([]string, 0, len(keys))
		sort.Strings(keys)
		var err error
		for _, key := range keys {
			dest := destPrefix + key[len(prefix):]
			_, err = storage.CopyObject(gcsContext, d.bucket, key, d.bucket, dest, nil)
			if err == nil {
				copies = append(copies, dest)
			} else {
				break
			}
		}
		// if an error occurred, attempt to cleanup the copies made
		if err != nil {
			for i := len(copies) - 1; i >= 0; i-- {
				_ = storage.DeleteObject(gcsContext, d.bucket, copies[i])
			}
			return err
		}
		// delete originals
		for i := len(keys) - 1; i >= 0; i-- {
			err2 := storage.DeleteObject(gcsContext, d.bucket, keys[i])
			if err2 != nil {
				err = err2
			}
		}
		return err
	}
	_, err = storage.CopyObject(gcsContext, d.bucket, d.pathToKey(sourcePath), d.bucket, d.pathToKey(destPath), nil)
	if err != nil {
		if status := err.(*googleapi.Error); status != nil {
			if status.Code == http.StatusNotFound {
				return storagedriver.PathNotFoundError{Path: sourcePath}
			}
		}
		return err
	}
	return storage.DeleteObject(gcsContext, d.bucket, d.pathToKey(sourcePath))
}
Ejemplo n.º 2
0
func storageCopyObject(context context.Context, srcBucket, srcName string, destBucket, destName string, attrs *storage.ObjectAttrs) (*storage.Object, error) {
	var obj *storage.Object
	err := retry(5, func() error {
		var err error
		obj, err = storage.CopyObject(context, srcBucket, srcName, destBucket, destName, attrs)
		return err
	})
	return obj, err
}
Ejemplo n.º 3
0
func ExampleCopyObject() {
	ctx := Example_auth()

	o, err := storage.CopyObject(ctx, "bucketname", "file1", "another-bucketname", "file2", nil)
	if err != nil {
		log.Fatal(err)
	}
	log.Println("copied file:", o)
}
Ejemplo n.º 4
0
// Rename implements part of the VFS interface.
func (s FS) Rename(ctx context.Context, oldPath, newPath string) error {
	if _, err := storage.CopyObject(ctx, s.Bucket, oldPath, s.Bucket, newPath, &storage.ObjectAttrs{
		ContentType: "application/octet-stream",
	}); err != nil {
		return fmt.Errorf("error copying file during rename: %v", err)
	}
	if err := storage.DeleteObject(ctx, s.Bucket, oldPath); err != nil {
		return fmt.Errorf("error deleting old file during rename: %v", err)
	}
	return nil
}
Ejemplo n.º 5
0
// copyFile copies a file in Google Cloud Storage.
func (d *demo) copyFile(fileName string) {
	copyName := fileName + "-copy"
	fmt.Fprintf(d.w, "Copying file /%v/%v to /%v/%v:\n", bucket, fileName, bucket, copyName)

	obj, err := storage.CopyObject(d.ctx, bucket, fileName, bucket, copyName, nil)
	if err != nil {
		d.errorf("copyFile: unable to copy /%v/%v to bucket %q, file %q: %v", bucket, fileName, bucket, copyName, err)
		return
	}
	d.cleanUp = append(d.cleanUp, copyName)

	d.dumpStats(obj)
}
Ejemplo n.º 6
0
// copyFile copies a file in Google Cloud Storage.
func (d *demo) copyFile(fileName string) {
	copyName := fileName + "-copy"
	fmt.Fprintf(d.w, "Copying file /%v/%v to /%v/%v:\n", bucket, fileName, bucket, copyName)

	attrs := storage.ObjectAttrs{
		Name:        copyName,
		ContentType: "text/plain",
		Metadata: map[string]string{
			"x-goog-meta-foo-copy": "foo-copy",
			"x-goog-meta-bar-copy": "bar-copy",
		},
	}
	obj, err := storage.CopyObject(d.ctx, bucket, fileName, bucket, attrs)
	if err != nil {
		d.errorf("copyFile: unable to copy /%v/%v to bucket %q, file %q: %v", bucket, fileName, bucket, copyName, err)
		return
	}
	d.cleanUp = append(d.cleanUp, copyName)

	d.dumpStats(obj)
}
Ejemplo n.º 7
0
func uploadDockerImage() {
	proj := "camlistore-website"
	bucket := "camlistore-release"
	versionedTarball := "docker/camlistored-" + *rev + ".tar.gz"
	tarball := "docker/camlistored.tar.gz"

	log.Printf("Uploading %s/%s ...", bucket, versionedTarball)

	ts, err := tokenSource(bucket)
	if err != nil {
		log.Fatal(err)
	}

	httpClient := oauth2.NewClient(oauth2.NoContext, ts)
	ctx := cloud.NewContext(proj, httpClient)
	w := storage.NewWriter(ctx, bucket, versionedTarball)
	// If you don't give the owners access, the web UI seems to
	// have a bug and doesn't have access to see that it's public, so
	// won't render the "Shared Publicly" link. So we do that, even
	// though it's dumb and unnecessary otherwise:
	acl := append(w.ACL, storage.ACLRule{Entity: storage.ACLEntity("project-owners-" + proj), Role: storage.RoleOwner})
	acl = append(acl, storage.ACLRule{Entity: storage.AllUsers, Role: storage.RoleReader})
	w.ACL = acl
	w.CacheControl = "no-cache" // TODO: remove for non-tip releases? set expirations?
	w.ContentType = "application/x-gtar"

	dockerSave := exec.Command("docker", "save", serverImage)
	dockerSave.Stderr = os.Stderr
	tar, err := dockerSave.StdoutPipe()
	if err != nil {
		log.Fatal(err)
	}
	targz, pw := io.Pipe()
	go func() {
		zw := gzip.NewWriter(pw)
		n, err := io.Copy(zw, tar)
		if err != nil {
			log.Fatalf("Error copying to gzip writer: after %d bytes, %v", n, err)
		}
		if err := zw.Close(); err != nil {
			log.Fatalf("gzip.Close: %v", err)
		}
		pw.CloseWithError(err)
	}()
	if err := dockerSave.Start(); err != nil {
		log.Fatalf("Error starting docker save %v: %v", serverImage, err)
	}
	if _, err := io.Copy(w, targz); err != nil {
		log.Fatalf("io.Copy: %v", err)
	}
	if err := w.Close(); err != nil {
		log.Fatalf("closing GCS storage writer: %v", err)
	}
	if err := dockerSave.Wait(); err != nil {
		log.Fatalf("Error waiting for docker save %v: %v", serverImage, err)
	}
	log.Printf("Uploaded tarball to %s", versionedTarball)
	log.Printf("Copying tarball to %s/%s ...", bucket, tarball)
	// TODO(mpl): 2015-05-12: update google.golang.org/cloud/storage so we
	// can specify the dest name in CopyObject, and we get the ACLs from the
	// src for free too I think.
	if _, err := storage.CopyObject(ctx, bucket, versionedTarball, bucket, storage.ObjectAttrs{
		Name:        tarball,
		ACL:         acl,
		ContentType: "application/x-gtar",
	}); err != nil {
		log.Fatalf("Error uploading %v: %v", tarball, err)
	}
	log.Printf("Uploaded tarball to %s", tarball)
}