Fix support for --bot bot1,bot2 -t foo

Previously, it would apply the test filter only on the last bot.

TBR=dpranke@chromium.org
BUG=
TEST=


Review URL: http://codereview.chromium.org/9634011

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@125622 0039d316-1c4b-4281-b951-d872f2087c98

tests/trychange_unittest.py

@@ -62,9 +62,8 @@ class TryChangeSimpleTest(unittest.TestCase):
   # Doesn't require supermox to run.
   def test_flags(self):
     cmd = [
-      '--bot', 'bot1',
+      '--bot', 'bot1,bot2',
       '--testfilter', 'test1',
-      '--bot', 'bot2',
       '--testfilter', 'test2',
       '--user', 'joe',
       '--email', 'joe@example.com',

trychange.py

@@ -315,13 +315,14 @@ def _ParseSendChangeOptions(options):
 
   filters = ','.join(options.testfilter)
   if filters:
-    for bot in options.bot:
-      if ':' in bot:
-        raise ValueError(
-            'Can\'t use both --testfilter and --bot builder:test formats '
-            'at the same time')
-      else:
-        values.append(('bot', '%s:%s' % (bot, filters)))
+    for botlist in options.bot:
+      for bot in botlist.split(','):
+        if ':' in bot:
+          raise ValueError(
+              'Can\'t use both --testfilter and --bot builder:test formats '
+              'at the same time')
+        else:
+          values.append(('bot', '%s:%s' % (bot, filters)))
   else:
     for bot in options.bot:
       values.append(('bot', bot))