add appengine/chromium_build_stats

appengine/chromium_build_stats/PRESUBMIT.py

Index: appengine/chromium_build_stats/PRESUBMIT.py
diff --git a/appengine/chromium_build_stats/PRESUBMIT.py b/appengine/chromium_build_stats/PRESUBMIT.py
new file mode 100644
index 0000000000000000000000000000000000000000..2905bce9ca791ea3450cb575f532d78a7e432663
--- /dev/null
+++ b/appengine/chromium_build_stats/PRESUBMIT.py
@@ -0,0 +1,132 @@
+# Copyright (c) 2014 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""Top-level presubmit script for chromium-build-stats (or go appengine app).
+
+See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts for
+details on the presubmit API built into gcl.
+"""
+
+def reporoot(input_api):
+  return input_api.os_path.join(input_api.PresubmitLocalPath(), '..', '..')
+
+def _go_files(input_api, source_file_filter=None):
+  """Collects affected go source files, but ignores ones generated by protoc."""
+  files = []
+  for f in input_api.AffectedTextFiles(source_file_filter):
+    if not f.LocalPath().endswith('.go'):
+      continue
+    if f.LocalPath().endswith('.pb.go'):
+      continue
+    files.append(f)
+  return files
+
+def _run_go_tool(input_api, args):
+  cmdline = [input_api.os_path.join(reporoot(input_api), '..',
+                                    'go_appengine', args[0])]
+  cmdline.extend(args[1:])
+  cwd = reporoot(input_api)
+  p = input_api.subprocess.Popen(cmdline,
+                                 cwd=cwd,
+                                 stdout=input_api.subprocess.PIPE,
+                                 stderr=input_api.subprocess.STDOUT)
+  (out, _) = p.communicate()
+  return (out, p.returncode)
+
+def _CheckChangeByGoTool(input_api, output_api, source_file_filter=None,
+                         go_tool=None):
+  """Checks that all '.go' files pass by go_tool."""
+  tool = ' '.join(go_tool)
+  cmdline = []
+  cmdline.extend(go_tool)
+  items = _go_files(input_api, source_file_filter)
+  files = [f.LocalPath() for f in items]
+  if not len(files):
+    return []
+  cmdline.extend(files)
+  out, ret = _run_go_tool(input_api, cmdline)
+  msg = ""
+  if ret:
+    msg = "Failed to run %s" % tool
+  if out:
+    msg = "\n".join([msg, out])
+  if msg:
+    return [output_api.PresubmitError(msg, items=items)]
+  return []
+
+def CheckGoTest(input_api, output_api, source_file_filter=None):
+  """Checks that all directories test pass by goapp test."""
+  items = _go_files(input_api, source_file_filter)
+  dirs = set()
+  for f in items:
+    dirs.add(input_api.os_path.join(reporoot(input_api),
+                                    input_api.os_path.dirname(f.LocalPath())))
+  if not len(dirs):
+    return []
+  result=[]
+  for d in dirs:
+    cmdline = [input_api.os_path.join(reporoot(input_api), '..',
+                                      'go_appengine', 'goapp')]
+    cmdline.extend(['test'])
+    p = input_api.subprocess.Popen(cmdline,
+                                   cwd=d,
+                                   stdout=input_api.subprocess.PIPE,
+                                   stderr=input_api.subprocess.STDOUT)
+    (out, _) = p.communicate()
+    msg = ""
+    if p.returncode:
+      msg = "Failed to run goapp test in %s" % d
+      if out:
+        msg = "\n".join([msg, out])
+    if msg:
+      result.append(output_api.PresubmitError(msg, items=items))
+  return result
+
+
+def CheckChangeGoFmtClean(input_api, output_api, source_file_filter=None):
+  return _CheckChangeByGoTool(input_api, output_api,
+                              source_file_filter=source_file_filter,
+                              go_tool=['gofmt', '-l'])
+
+def CheckChangeGoVetClean(input_api, output_api, source_file_filter=None):
+  return _CheckChangeByGoTool(input_api, output_api,
+                              source_file_filter=source_file_filter,
+                              go_tool=['goapp', 'vet'])
+
+
+def CommonChecks(input_api, output_api):
+  results = []
+  results += input_api.canned_checks.CheckChangeHasDescription(
+      input_api, output_api)
+  results += CheckChangeGoFmtClean(input_api, output_api)
+  results += CheckChangeGoVetClean(input_api, output_api)
+  results += CheckGoTest(input_api, output_api)
+  results += input_api.canned_checks.CheckChangeHasNoCrAndHasOnlyOneEol(
+      input_api, output_api)
+  # go uses TAB.
+  #results += input_api.canned_checks.CheckChangeHasNoTabs(
+  #   input_api, output_api)
+  results += input_api.canned_checks.CheckChangeTodoHasOwner(
+      input_api, output_api)
+  results += input_api.canned_checks.CheckChangeHasNoStrayWhitespace(
+      input_api, output_api)
+  # go accepts long lines.
+  #results += input_api.canned_checks.CheckLongLines(input_api, output_api, 80)
+  results += input_api.canned_checks.CheckLicense(
+      input_api, output_api,
+      r'(Copyright 201\d Google Inc. All Rights Reserved.|' +
+       'Copyright.*The Chromium Authors. All rights reserved.)')
+  results += input_api.canned_checks.CheckDoNotSubmit(
+      input_api, output_api)
+  return results
+
+
+def CheckChangeOnUpload(input_api, output_api):
+  return CommonChecks(input_api, output_api)
+
+
+def CheckChangeOnCommit(input_api, output_api):
+  output = CommonChecks(input_api, output_api)
+  output.extend(input_api.canned_checks.CheckOwners(input_api, output_api))
+  return output