bugs-fixed-since: add argument to list StoryBoard entries

If enabled, this includes StoryBoard stories in the output, with a
"storyboard:" prefix.

Example output:
$ ./bugs-fixed-since.py -sb -r ../octavia --start=1.0.0
storyboard:2001193
storyboard:2001424
1713873
storyboard:2001401
[...]

This is disabled for compatibility with other tools parsing
bugs-fixed-since output

Change-Id: Iddde675254a8622d498cab581d522bffdd7fbaae

README.rst

@@ -767,7 +767,7 @@ features."
 bugs-fixed-since.py
 -------------------
 
-List bugs mentioned in master commit messages starting from a specified commit.
+List Launchpad bugs mentioned in master commit messages starting from a specified commit.
 
 Example::
 
@@ -794,6 +794,12 @@ Example::
 
   ./bugs-fixed-since.py -e -r ../neutron --start=8.0.0
 
+Use ``-sb`` option to also include StoryBoard bugs
+
+Example::
+
+  ./bugs-fixed-since.py -sb -r ../octavia --start=1.0.0
+
 
 lp-filter-bugs-by-importance.py
 -------------------------------

bugs-fixed-since.py

@@ -24,6 +24,7 @@ from git import Repo
 
 
 BUG_PATTERN = r'Bug:\s+#?(?P<bugnum>\d+)'
+STORYBOARD_PATTERN = r'Story:\s+#?(?P<storynum>\d+)'
 CHANGEID_PATTERN = r'Change-Id:\s+(?P<id>[0-9a-zA-Z]+)'
 
 
@@ -53,6 +54,12 @@ def _parse_args():
         default=False,
         help='whether to include easy (no git conflicts) backports only',
     )
+    parser.add_argument(
+        '--include-storyboard', '-sb',
+        action='store_true',
+        default=False,
+        help='whether to also include storyboard entries (stories)',
+    )
     return parser.parse_args()
 
 
@@ -128,6 +135,9 @@ def main():
         # collect every bug number mentioned in the message
         for match in re.finditer(BUG_PATTERN, commit.message):
             bugs.add(match.group('bugnum'))
+        if args.include_storyboard:
+            for match in re.finditer(STORYBOARD_PATTERN, commit.message):
+                bugs.add('storyboard:' + match.group('storynum'))
 
     for bug in bugs:
         print(bug)