scripts/shortlog: new script

Useful for release announcements, shortlog.py presents a list of committers
corresponding to the specified revision set, along with their count of
commits in that set.

Example usage:
    scripts/shortlog.py "only('.', branch('stable') & tagged() & public() & not '.')"

scripts/shortlog.py

@@ -0,0 +1,34 b''
+#!/usr/bin/env python2
+# -*- coding: utf-8 -*-
+
+"""
+Kallithea script for generating a quick overview of contributors and their
+commit counts in a given revision set.
+"""
+import argparse
+import os
+from collections import Counter
+import contributor_data
+
+def main():
+
+    parser = argparse.ArgumentParser(description='Generate a list of committers and commit counts.')
+    parser.add_argument('revset',
+                        help='revision set specifying the commits to count')
+    args = parser.parse_args()
+
+    repo_entries = [
+        (contributor_data.name_fixes.get(name) or contributor_data.name_fixes.get(name.rsplit('<', 1)[0].strip()) or name).rsplit('<', 1)[0].strip()
+        for name in (line.strip()
+         for line in os.popen("""hg log -r '%s' -T '{author}\n'""" % args.revset).readlines())
+        ]
+
+    counter = Counter(repo_entries)
+    for name, count in counter.most_common():
+        if name == '':
+            continue
+        print('%4s %s' % (count, name))
+
+
+if __name__ == '__main__':
+    main()