This makes presubmit queries accept "yes" as well as "y"

as an answer.
Review URL: http://codereview.chromium.org/268023

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@28557 0039d316-1c4b-4281-b951-d872f2087c98

presubmit_support.py

@@ -63,6 +63,10 @@ def normpath(path):
   path = path.replace(os.sep, '/')
   return os.path.normpath(path)
 
+def PromptYesNo(input_stream, output_stream, prompt):
+  output_stream.write(prompt)
+  response = input_stream.readline().strip().lower()
+  return response == 'y' or response == 'yes'
 
 class OutputApi(object):
   """This class (more like a module) gets passed to presubmit scripts so that
@@ -102,9 +106,8 @@ class OutputApi(object):
                             self._long_text)
 
       if self.ShouldPrompt() and may_prompt:
-        output_stream.write('Are you sure you want to continue? (y/N): ')
-        response = input_stream.readline()
-        if response.strip().lower() != 'y':
+        if not PromptYesNo(input_stream, output_stream,
+                           'Are you sure you want to continue? (y/N): '):
           return False
 
       return not self.IsFatal()
@@ -953,10 +956,9 @@ def DoPresubmitChecks(change,
     print "Presubmit checks took %.1fs to calculate." % total_time
 
   if not errors and warnings and may_prompt:
-    output_stream.write(
-      'There were presubmit warnings. Sure you want to continue? (y/N): ')
-    response = input_stream.readline()
-    if response.strip().lower() != 'y':
+    if not PromptYesNo(input_stream, output_stream,
+                       'There were presubmit warnings. '
+                       'Are you sure you wish to continue? (y/N): '):
       error_count += 1
 
   global _ASKED_FOR_FEEDBACK

tests/presubmit_unittest.py

@@ -78,15 +78,16 @@ class PresubmitUnittest(PresubmitTestsBase):
     self.mox.ReplayAll()
     members = [
       'AffectedFile', 'Change', 'DoGetTrySlaves', 'DoPresubmitChecks',
-      'GetTrySlavesExecuter', 'GitChange', 'GitAffectedFile', 'InputApi',
-      'ListRelevantPresubmitFiles', 'Main', 'NotImplementedException',
-      'OutputApi', 'ParseFiles', 'PresubmitExecuter', 'ScanSubDirs',
-      'SvnAffectedFile', 'SvnChange',
-      'cPickle', 'cStringIO', 'exceptions',
-      'fnmatch', 'gcl', 'gclient_scm', 'glob', 'logging', 'marshal', 'normpath',
-      'optparse', 'os', 'pickle',
-      'presubmit_canned_checks', 'random', 're', 'subprocess', 'sys', 'time',
-      'tempfile', 'traceback', 'types', 'unittest', 'urllib2', 'warnings',
+      'GetTrySlavesExecuter', 'GitAffectedFile', 'GitChange',
+      'InputApi', 'ListRelevantPresubmitFiles', 'Main',
+      'NotImplementedException', 'OutputApi', 'ParseFiles',
+      'PresubmitExecuter', 'PromptYesNo', 'ScanSubDirs',
+      'SvnAffectedFile', 'SvnChange', 'cPickle', 'cStringIO',
+      'exceptions', 'fnmatch', 'gcl', 'gclient_scm', 'glob',
+      'logging', 'marshal', 'normpath', 'optparse', 'os', 'pickle',
+      'presubmit_canned_checks', 'random', 're', 'subprocess', 'sys',
+      'tempfile', 'time', 'traceback', 'types', 'unittest', 'urllib2',
+      'warnings',
     ]
     # If this test fails, you should add the relevant test.
     self.compareMembers(presubmit, members)