fix NPE

related to #7597

src/vs/workbench/parts/git/node/rawGitService.ts

@@ -51,6 +51,10 @@ export class RawGitService implements IRawGitService {
 	}
 
 	statusCount(): TPromise<number> {
+		if (!this.repo) {
+			return TPromise.as(0);
+		}
+		
 		return this.status().then(r => r ? r.status.length : 0);
 	}