From 9f77cb66cf4be2b09df48469c05735f3c5efce76 Mon Sep 17 00:00:00 2001
From: Tristan Maat <tristan.maat@codethink.co.uk>
Date: Fri, 8 Jun 2018 13:46:40 +0100
Subject: Handle missing tags in git repositories correctly

Fixes issue #380
---
 buildstream/utils.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/buildstream/utils.py b/buildstream/utils.py
index 70759dc12..af5bac3fb 100644
--- a/buildstream/utils.py
+++ b/buildstream/utils.py
@@ -472,6 +472,10 @@ def get_bst_version():
     from . import __version__
     versions = __version__.split('.')[:2]
 
+    if versions[0] == '0+untagged':
+        raise UtilError("Your git repository has no tags - BuildStream can't "
+                        "determine its version. Please run `git fetch --tags`.")
+
     return (int(versions[0]), int(versions[1]))
 
 
-- 
cgit v1.2.1