Merge pull request #39 from buildbarn/noop

Register no-op archiver for bytestream URIs

Author: mortenmj

cmd/bb_portal/main.go

@@ -115,8 +115,12 @@ func configureBlobArchiving(blobArchiver processing.BlobMultiArchiver, archiveFo
 	if err != nil {
 		fatal("failed to create blob archive folder", "folder", archiveFolder, "err", err)
 	}
+
 	localBlobArchiver := processing.NewLocalFileArchiver(archiveFolder)
 	blobArchiver.RegisterArchiver("file", localBlobArchiver)
+
+	noopArchiver := processing.NewNoopArchiver()
+	blobArchiver.RegisterArchiver("bytestream", noopArchiver)
 }
 
 func runWatcher(watcher *fsnotify.Watcher, client *ent.Client, bepFolder string, blobArchiver processing.BlobMultiArchiver) {

pkg/processing/archive.go

@@ -125,3 +125,21 @@ func (lfa LocalFileArchiver) archiveBlob(blobURI detectors.BlobURI) (*ent.Blob,
 		ArchiveURL: destPath,
 	}, nil
 }
+
+// NoopArchiver is an archiver which does not archive blobs. This is useful in situations where
+// it is desirable to register an archiver for some URI scheme, without archiving those blobs.
+type NoopArchiver struct{}
+
+// NewNoopArchiver creates a new NoopArchiver
+func NewNoopArchiver() NoopArchiver {
+	return NoopArchiver{}
+}
+
+// ArchiveBlob Archive Blob function.
+func (na NoopArchiver) ArchiveBlob(_ context.Context, blobURI detectors.BlobURI) ent.Blob {
+	return ent.Blob{
+		URI:        string(blobURI),
+		SizeBytes:  0,
+		ArchiveURL: "",
+	}
+}