added developer commit history example for annual purge

jdh2358 · jdh2358 · commit bf7ca4c23802 · 2011-01-03T19:00:11.000Z
svn path=/trunk/matplotlib/; revision=8875
diff --git a/examples/misc/developer_commit_history.py b/examples/misc/developer_commit_history.py
@@ -0,0 +1,44 @@
+"""
+report how many days it has been since each developer committed.  You
+must do an
+
+svn log > log.txt
+
+and place the output next to this file before running
+
+"""
+import os, datetime
+
+import matplotlib.cbook as cbook
+
+todate = cbook.todate('%Y-%m-%d')
+today = datetime.date.today()
+if not os.path.exists('log.txt'):
+    print('You must place the "svn log" output into a file "log.txt"')
+    raise SystemExit
+
+parse = False
+
+lastd = dict()
+for line in file('log.txt'):
+    if line.startswith('--------'):
+        parse = True
+        continue
+
+    if parse:
+        parts = [part.strip() for part in line.split('|')]
+        developer = parts[1]
+        dateparts = parts[2].split(' ')
+        ymd = todate(dateparts[0])
+
+
+    if developer not in lastd:
+        lastd[developer] = ymd
+
+    parse = False
+
+dsu = [((today - lastdate).days, developer) for developer, lastdate in lastd.items()]
+
+dsu.sort()
+for timedelta, developer in dsu:
+    print('%s : %d'%(developer, timedelta))
