File: PRESUBMIT.py

package info (click to toggle)
chromium 138.0.7204.157-1
  • links: PTS, VCS
  • area: main
  • in suites: sid, trixie
  • size: 6,071,864 kB
  • sloc: cpp: 34,936,859; ansic: 7,176,967; javascript: 4,110,704; python: 1,419,953; asm: 946,768; xml: 739,967; pascal: 187,324; sh: 89,623; perl: 88,663; objc: 79,944; sql: 50,304; cs: 41,786; fortran: 24,137; makefile: 21,806; php: 13,980; tcl: 13,166; yacc: 8,925; ruby: 7,485; awk: 3,720; lisp: 3,096; lex: 1,327; ada: 727; jsp: 228; sed: 36
file content (250 lines) | stat: -rw-r--r-- 9,282 bytes parent folder | download | duplicates (3)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
# Copyright 2014 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

"""Presubmit script for Chromium browser code."""


import re

# Checks whether an autofill-related browsertest fixture class inherits from
# either InProcessBrowserTest or AndroidBrowserTest without having a member of
# type `autofill::test::AutofillBrowserTestEnvironment`. In that case, the
# functions registers a presubmit warning.
def _CheckNoAutofillBrowserTestsWithoutAutofillBrowserTestEnvironment(
        input_api, output_api):
  autofill_files_pattern = re.compile(
      r'(autofill|password_manager).*\.(mm|cc|h)')
  concerned_files = [(f, input_api.ReadFile(f))
                     for f in input_api.AffectedFiles(include_deletes=False)
                     if autofill_files_pattern.search(f.LocalPath())]

  warning_files = []
  class_name = r'^( *)(class|struct)\s+\w+\s*:\s*'
  target_base = r'[^\{]*\bpublic\s+(InProcess|Android)BrowserTest[^\{]*\{'
  class_declaration_pattern = re.compile(
      class_name + target_base, re.MULTILINE)
  for autofill_file, file_content in concerned_files:
    for class_match in re.finditer(class_declaration_pattern, file_content):
      indentation = class_match.group(1)
      class_end_pattern = re.compile(
          r'^' + indentation + r'\};$', re.MULTILINE)
      class_end = class_end_pattern.search(file_content[class_match.start():])

      corresponding_subclass = (
          '' if class_end is None else
          file_content[
              class_match.start():
              class_match.start() + class_end.end()])

      required_member_pattern = re.compile(
          r'^' + indentation +
          r'  (::)?(autofill::)?test::AutofillBrowserTestEnvironment\s+\w+_;',
          re.MULTILINE)
      if not required_member_pattern.search(corresponding_subclass):
        warning_files.append(autofill_file)

  return [output_api.PresubmitPromptWarning(
      'Consider adding a member autofill::test::AutofillBrowserTestEnvironment '
      'to the test fixtures that derive from InProcessBrowserTest or '
      'AndroidBrowserTest in order to disable kAutofillServerCommunication in '
      'browser tests.',
      warning_files)] if len(warning_files) else []

def _RunHistogramChecks(input_api, output_api, histogram_name):
  try:
    # Setup sys.path so that we can call histograms code.
    import sys
    original_sys_path = sys.path
    sys.path = sys.path + [input_api.os_path.join(
        input_api.change.RepositoryRoot(),
        'tools', 'metrics', 'histograms')]

    results = []

    import presubmit_bad_message_reasons
    results.extend(presubmit_bad_message_reasons.PrecheckBadMessage(input_api,
        output_api, histogram_name))

    return results
  except:
    return [output_api.PresubmitError('Could not verify histogram!')]
  finally:
    sys.path = original_sys_path


def _CheckUnwantedDependencies(input_api, output_api):
  problems = []
  for f in input_api.AffectedFiles():
    if not f.LocalPath().endswith('DEPS'):
      continue

    for line_num, line in f.ChangedContents():
      if not line.strip().startswith('#'):
        m = re.search(r".*\/blink\/public\/web.*", line)
        if m:
          problems.append(m.group(0))

  if not problems:
    return []
  return [output_api.PresubmitPromptWarning(
      'chrome/browser cannot depend on blink/public/web interfaces. ' +
      'Use blink/public/common instead.',
      items=problems)]


def _CheckNoInteractiveUiTestLibInNonInteractiveUiTest(input_api, output_api):
  """Makes sure that ui_controls related API are used only in
  interactive_in_tests.
  """
  problems = []
  # There are interactive tests whose name ends with `_browsertest.cc`
  # or `_browser_test.cc`.
  files_to_skip = ((r'.*interactive_.*test\.cc',) +
                   input_api.DEFAULT_FILES_TO_SKIP)
  def FileFilter(affected_file):
    """Check non interactive_uitests only."""
    return input_api.FilterSourceFile(
        affected_file,
        files_to_check=(
            r'.*browsertest\.cc',
            r'.*unittest\.cc'),
        files_to_skip=files_to_skip)

  ui_controls_includes =(
    input_api.re.compile(
        r'#include.*/(ui_controls.*h|interactive_test_utils.h)"'))

  for f in input_api.AffectedFiles(include_deletes=False,
                                   file_filter=FileFilter):
    for line_num, line in f.ChangedContents():
      m = re.search(ui_controls_includes, line)
      if m:
        problems.append('  %s:%d:%s' % (f.LocalPath(), line_num, m.group(0)))

  if not problems:
    return []

  WARNING_MSG ="""
  ui_controls API can be used only in interactive_ui_tests.
  If the test is in the interactive_ui_tests, please consider renaming
  to xxx_interactive_uitest.cc"""
  return [output_api.PresubmitPromptWarning(WARNING_MSG, items=problems)]


def _CheckForUselessExterns(input_api, output_api):
  """Makes sure developers don't copy "extern const char kFoo[]" from
  foo.h to foo.cc.
  """
  problems = []
  BAD_PATTERN = input_api.re.compile(r'^extern const')

  def FileFilter(affected_file):
    """Check only a particular list of files"""
    return input_api.FilterSourceFile(
        affected_file,
        files_to_check=[r'chrome[/\\]browser[/\\]flag_descriptions\.cc']);

  for f in input_api.AffectedFiles(include_deletes=False,
                                   file_filter=FileFilter):
    for _, line in f.ChangedContents():
      if BAD_PATTERN.search(line):
        problems.append(f)

  if not problems:
    return []

  WARNING_MSG ="""Do not write "extern const char" in these .cc files:"""
  return [output_api.PresubmitPromptWarning(WARNING_MSG, items=problems)]


def _CheckBuildFilesForIndirectAshSources(input_api, output_api):
  """Warn when indirect paths are added to an ash target's "sources".

  Indirect paths are paths containing a slash, e.g. "foo/bar.h" or "../foo.cc".
  """

  MSG = ("It appears that sources were added to the above BUILD.gn file but "
         "their paths contain a slash, indicating that the files are from a "
         "different directory (e.g. a subdirectory). As a general rule, Ash "
         "sources should live in the same directory as the BUILD.gn file "
         "listing them. There may be cases where this is not feasible or "
         "doesn't make sense, hence this is only a warning. If in doubt, "
         "please contact ash-chrome-refactor-wg@google.com.")

  os_path = input_api.os_path

  # Any BUILD.gn in or under one of these directories will be checked.
  monitored_dirs = [
      os_path.join("chrome", "browser", "ash"),
      os_path.join("chrome", "browser", "chromeos"),
      os_path.join("chrome", "browser", "ui", "ash"),
      os_path.join("chrome", "browser", "ui", "chromeos"),
      os_path.join("chrome", "browser", "ui", "webui", "ash"),
  ]
  def should_check_path(affected_path):
    if os_path.basename(affected_path) != 'BUILD.gn':
      return False
    ad = os_path.dirname(affected_path)
    for md in monitored_dirs:
      if os_path.commonpath([ad, md]) == md:
        return True
    return False

  # Simplifying assumption: 'sources' keyword always appears at the beginning of
  # a line (optionally preceded by whitespace).
  sep = r'(?m:\s*#.*$)*\s*'  # whitespace and/or comments, possibly empty
  sources_re = re.compile(
      fr'(?m:^\s*sources{sep}\+?={sep}\[((?:{sep}"[^"]*"{sep},?{sep})*)\])')
  source_re = re.compile(fr'{sep}"([^"]*)"')

  def find_indirect_sources(contents):
    result = []
    for sources_m in sources_re.finditer(contents):
      for source_m in source_re.finditer(sources_m.group(1)):
        source = source_m.group(1)
        if '/' in source:
          result.append(source)
    return result

  results = []
  for f in input_api.AffectedTestableFiles():
    if not should_check_path(f.LocalPath()):
      continue

    indirect_sources_new = find_indirect_sources('\n'.join(f.NewContents()))
    if not indirect_sources_new:
      continue

    indirect_sources_old = find_indirect_sources('\n'.join(f.OldContents()))
    added_indirect_sources = (
        set(indirect_sources_new) - set(indirect_sources_old))

    if added_indirect_sources:
      results.append(output_api.PresubmitPromptWarning(
          "Indirect sources detected.",
          [f.LocalPath()],
          f"{MSG}\n  " + "\n  ".join(sorted(added_indirect_sources))))
  return results


def _CommonChecks(input_api, output_api):
  """Checks common to both upload and commit."""
  results = []
  results.extend(
    _CheckNoAutofillBrowserTestsWithoutAutofillBrowserTestEnvironment(
        input_api, output_api))
  results.extend(_CheckUnwantedDependencies(input_api, output_api))
  results.extend(_RunHistogramChecks(input_api, output_api,
                 "BadMessageReasonChrome"))
  results.extend(_CheckNoInteractiveUiTestLibInNonInteractiveUiTest(
      input_api, output_api))
  results.extend(_CheckForUselessExterns(input_api, output_api))
  results.extend(_CheckBuildFilesForIndirectAshSources(input_api, output_api))
  return results

def CheckChangeOnUpload(input_api, output_api):
  return _CommonChecks(input_api, output_api)

def CheckChangeOnCommit(input_api, output_api):
  return _CommonChecks(input_api, output_api)