# HG changeset patch
# User Dirkjan Ochtman <dirkjan@ochtman.nl>
# Date 1251284751 -7200
# Node ID 7cca980317c5d99301679efae279f524c37ef0eb
# Parent  20ed9909dbd9251f76cacb463c480488eebf736b# Parent  f7968bba2307e25ba8d8731ca43e990b6e6ea0a3
merge with crew-stable

diff -r 20ed9909dbd9 -r 7cca980317c5 hgext/churn.py
--- a/hgext/churn.py	Sat Aug 22 19:40:15 2009 +0200
+++ b/hgext/churn.py	Wed Aug 26 13:05:51 2009 +0200
@@ -148,7 +148,8 @@
     sortkey = ((not opts.get('sort')) and (lambda x: -x[1]) or None)
     rate.sort(key=sortkey)
 
-    maxcount = float(max([v for k, v in rate]))
+    # Be careful not to have a zero maxcount (issue833)
+    maxcount = float(max([v for k, v in rate])) or 1.0
     maxname = max([len(k) for k, v in rate])
 
     ttywidth = util.termwidth()
diff -r 20ed9909dbd9 -r 7cca980317c5 tests/test-churn
--- a/tests/test-churn	Sat Aug 22 19:40:15 2009 +0200
+++ b/tests/test-churn	Wed Aug 26 13:05:51 2009 +0200
@@ -50,3 +50,13 @@
 echo % churn by hour
 hg churn -f '%H' -s
 
+cd ..
+
+# issue 833: ZeroDivisionError
+hg init issue-833
+cd issue-833
+touch foo
+hg ci -Am foo
+# this was failing with a ZeroDivisionError
+hg churn
+cd ..
diff -r 20ed9909dbd9 -r 7cca980317c5 tests/test-churn.out
--- a/tests/test-churn.out	Sat Aug 22 19:40:15 2009 +0200
+++ b/tests/test-churn.out	Wed Aug 26 13:05:51 2009 +0200
@@ -28,3 +28,5 @@
 09      2 *********************************
 12      4 ******************************************************************
 13      1 ****************
+adding foo
+test      0