Simplify the matching of the last line
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
diff --git a/scripts/assemble_changelog.py b/scripts/assemble_changelog.py
index ebb056e..6eeea61 100755
--- a/scripts/assemble_changelog.py
+++ b/scripts/assemble_changelog.py
@@ -261,12 +261,14 @@
Return None if the file was never checked into git.
"""
hashes = subprocess.check_output(['git', 'log', '--format=%H', '--', filename])
- if not hashes:
- # The file was never checked in.
+ m = re.search(b'(.+)$', hashes)
+ if not m:
+ # The git output is empty. This means that the file was
+ # never checked in.
return None
- hashes = hashes.rstrip(b'\n')
- last_hash = hashes[hashes.rfind(b'\n')+1:]
- return last_hash
+ # The last commit in the log is the oldest one, which is when the
+ # file was created.
+ return m.group(0)
@staticmethod
def list_merges(some_hash, target, *options):