Add original stats.py that Soren wrote.

.gitignore

@@ -0,0 +1 @@
+*.pyc

stats.py

@@ -0,0 +1,55 @@
+#!/usr/bin/python
+import calendar
+import datetime
+import json
+import optparse
+import paramiko
+from pprint import pprint
+import sys
+
+
+optparser = optparse.OptionParser()
+optparser.add_option('-p', '--project', default='nova', help='Project to generate stats for')
+optparser.add_option('-d', '--days', type='int', default=14, help='Number of days to consider')
+optparser.add_option('-r', '--raw', action='store_true', default=False, help='Um... Hard to explain. Try it and see')
+
+options, args = optparser.parse_args()
+
+client = paramiko.SSHClient()
+client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
+client.load_system_host_keys()
+client.connect('review.openstack.org', port=29418, key_filename='/home/soren/.ssh/statskey', username='usagestats')
+stdin, stdout, stderr = client.exec_command('gerrit query project:openstack/%s --all-approvals --patch-sets --format JSON' % options.project)
+changes = []
+for l in stdout:
+    changes += [json.loads(l)]
+
+reviews = []
+
+for change in changes:
+#    print json.dumps(change, sort_keys=True, indent=4)
+    for patchset in change.get('patchSets', []):
+        for review in patchset.get('approvals', []):
+            reviews += [review]
+
+if not options.raw:
+    cut_off = datetime.datetime.now() - datetime.timedelta(days=options.days)
+    ts = calendar.timegm(cut_off.timetuple())
+    reviews = filter(lambda x:x['grantedOn'] > ts, reviews)
+
+def round_to_day(ts):
+    SECONDS_PER_DAY = 60*60*24
+    return (ts / (SECONDS_PER_DAY)) * SECONDS_PER_DAY
+
+reviewers = {}
+for review in reviews:
+    reviewer = review['by'].get('username', 'unknown')
+    if options.raw:
+        if reviewer not in reviewers:
+            reviewers[reviewer] = {}
+        day = round_to_day(review['grantedOn'])
+        reviewers[reviewer][day] = reviewers[reviewer].get(day, 0) + 1
+    else:
+        reviewers[reviewer] = reviewers.get(reviewer, 0) + 1
+
+print json.dumps(reviewers, sort_keys=True, indent=4)