def find_lines_matching(pattern, sources=None):
command = [
'git', 'grep',
'-n', # show line numbers
'-I', # exclude binary files
pattern,
'--'
]
if sources:
command.extend(sources)
command.extend(standard_exclusions())
command_trace.log(command)
bufsize = 4096
proc = subprocess.Popen(command, bufsize=bufsize, stdout=subprocess.PIPE)
result = []
try:
while proc.poll() is None:
result.append(proc.stdout.read(bufsize))
except KeyboardInterrupt:
proc.terminate()
proc.wait()
return six.ensure_text(b''.join(result))
def is_revision(word):
"""Returns true if the given word is a revision name according to git."""
command = ['git', 'rev-parse', word, '--']
with open(os.devnull, 'w') as dev_null:
command_trace.log(command)
rc = subprocess.call(command, stdout=dev_null, stderr=dev_null)
return rc == 0
def _list_files(parent):
"""Lists files contained directly in the parent directory."""
result = _list_files.cache.get(parent)
if result is None:
command_trace.log(['ls', parent])
result = os.listdir(parent)
_list_files.cache[parent] = result
return result
def xcresulttool(*args): """Runs xcresulttool and returns its output as a string.""" cmd = ['xcrun', 'xcresulttool'] cmd.extend(args) command_trace.log(cmd) return subprocess.check_output(cmd)
def find_xcode_major_version():
"""Determines the major version number of Xcode."""
cmd = ['xcodebuild', '-version']
command_trace.log(cmd)
result = str(subprocess.check_output(cmd))
version = result.split('\n', 1)[0]
version = re.sub(r'Xcode ', '', version)
version = re.sub(r'\..*', '', version)
return int(version)
def _read_output(command):
command_trace.log(command)
if _dry_run:
return checker.Result(0, '')
proc = subprocess.Popen(command,
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT)
output = proc.communicate('')[0]
sc = proc.wait()
return checker.Result(sc, output)
def _null_split_output(command):
"""Runs the given command and splits its output on the null byte."""
command_trace.log(command)
result = six.ensure_text(subprocess.check_output(command))
return [name for name in result.rstrip().split('\0') if name]
