Fix copyright header presubmit

PRESUBMIT.py

-# Copyright 2015 The LUCI Authors. All rights reserved.
-# Use of this source code is governed under the Apache License, Version 2.0
-# that can be found in the LICENSE file.
+# Copyright 2017 The LUCI Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 
 """Top-level presubmit script.
 
 See https://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts for
 details on the presubmit API built into depot_tools.
 """
 
 import os
+import re
 import sys
 
 
 def PreCommitGo(input_api, output_api, pcg_mode):
   """Run go-specific checks via pre-commit-go (pcg) if it's in PATH."""
   if input_api.is_committing:
     error_type = output_api.PresubmitError
   else:
     error_type = output_api.PresubmitPromptWarning
 
@@ skipping 36 matching lines @@
 
   output = []
   output += input_api.RunTests([input_api.Command(
       name='web presubmit',
       cmd=[
           input_api.python_executable,
           input_api.os_path.join('web', 'web.py'),
           'presubmit',
       ],
       kwargs={},
-      message=output_api.PresubmitError,
+      message=error_type,
   )])
   return output
 
 
+COPYRIGHT_TEMPLATE = """
+Copyright YEARPATTERN The LUCI Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+""".strip()
+
 def header(input_api):
   """Returns the expected license header regexp for this project."""
   current_year = int(input_api.time.strftime('%Y'))
   allowed_years = (str(s) for s in reversed(xrange(2011, current_year + 1)))
   years_re = '(' + '|'.join(allowed_years) + ')'
-  license_header = (
-    r'.*? Copyright %(year)s The LUCI Authors\. '
-      r'All rights reserved\.\n'
-    r'.*? Use of this source code is governed under the Apache License, '
-      r'Version 2\.0\n'
-    r'.*? that can be found in the LICENSE file\.(?: \*/)?\n'
-  ) % {
-    'year': years_re,
-  }
-  return license_header
+  lines = [
+    ('.*? ' + re.escape(line)) if line else '.*?'
+    for line in COPYRIGHT_TEMPLATE.splitlines()
+  ]
+  lines[0] = lines[0].replace('YEARPATTERN', years_re)

[Ryan Tseng, 2017/07/15 01:08:23]

lol

+  return '\n'.join(lines) + '(?: \*/)?\n'
 
 
 def source_file_filter(input_api):
   """Returns filter that selects source code files only."""
   bl = list(input_api.DEFAULT_BLACK_LIST) + [
     r'.+/bootstrap/.*',  # third party
     r'.+/jquery/.*',  # third party
     r'.+/pb\.discovery\.go$',
     r'.+/pb\.discovery_test\.go$',
     r'.+\.pb\.go$',
@@ skipping 38 matching lines @@
   results = CommonChecks(input_api, output_api)
   results.extend(input_api.canned_checks.CheckChangeHasDescription(
       input_api, output_api))
   results.extend(input_api.canned_checks.CheckDoNotSubmitInDescription(
       input_api, output_api))
   results.extend(input_api.canned_checks.CheckDoNotSubmitInFiles(
       input_api, output_api))
   results.extend(PreCommitGo(
       input_api, output_api, ['continuous-integration']))
   return results