def CheckGnGen(input_api, output_api):
"""Runs `gn gen --check` with default args to detect mismatches between
#includes and dependencies in the BUILD.gn files, as well as general build
errors.
"""
with _AddToPath(input_api.os_path.join(
input_api.PresubmitLocalPath(), 'tools_webrtc', 'presubmit_checks_lib')):
from gn_check import RunGnCheck
errors = RunGnCheck(input_api.PresubmitLocalPath())[:5]
if errors:
return [output_api.PresubmitPromptWarning(
'Some #includes do not match the build dependency graph. Please run:\n'
' gn gen --check <out_dir>',
long_text='\n\n'.join(errors))]
return []
def testCircularDependencyError(self):
test_dir = os.path.join(TESTDATA_DIR, 'circular_dependency')
expected_errors = ['ERROR Dependency cycle:\n'
' //:bar ->\n //:foo ->\n //:bar']
self.assertListEqual(expected_errors, RunGnCheck(test_dir))
