Don't crash if we fail to get the flutter or engine revision (#6332)

2016-10-14 15:43:44 -07:00
parent 93d757c3e0
commit cedbfd4896
1 changed files with 2 additions and 0 deletions
--- a/packages/flutter_tools/lib/src/version.dart
+++ b/packages/flutter_tools/lib/src/version.dart
@@ -107,5 +107,7 @@ String _runSync(String executable, List<String> arguments, String cwd) {
 }

 String _shortGitRevision(String revision) {
+  if (revision == null)
+    return '';
  return revision.length > 10 ? revision.substring(0, 10) : revision;
 }