Get lastchange.py to work correctly on Git repositories.

build/util/lastchange.py

Index: build/util/lastchange.py
diff --git a/build/util/lastchange.py b/build/util/lastchange.py
index 8d758d2a24fdfa6daefada92491d739e055e5b7e..f910e9cdae727c79b82e6ede588ab7ab54c289d0 100755
--- a/build/util/lastchange.py
+++ b/build/util/lastchange.py
@@ -103,7 +103,7 @@ def FetchGitRevision(directory):
   if proc:
     output = proc.communicate()[0].strip()
     if proc.returncode == 0 and output:
-      return VersionInfo('git', output[:7])
+      return VersionInfo('git', output)

[iannucci, 2014/08/19 18:49:46]

should we include the commit position here, if it's available in the commit
message?

[agable, 2014/08/19 22:00:30]

The output cannot be multiline. It's unclear to me what would happen if the
output had spaces in it, but given that it is going into a .h header file, I'm
not sure I want to risk it.

   return None
 
 
@@ -116,8 +116,7 @@ def FetchGitSVNURLAndRevision(directory, svn_url_regex):
   Returns:
     A tuple containing the Subversion URL and revision.
   """
-  proc = RunGitCommand(directory, ['log', '-1',
-                                   '--grep=git-svn-id', '--format=%b'])
+  proc = RunGitCommand(directory, ['log', '-1', '--format=%b'])
   if proc:
     output = proc.communicate()[0].strip()
     if proc.returncode == 0 and output: