How to use get_noqa_suppressions method in prospector

Best Python code snippet using prospector_python

suppression.py

Source:suppression.py

...19from prospector import encoding20_FLAKE8_IGNORE_FILE = re.compile(r"flake8[:=]\s*noqa", re.IGNORECASE)21_PEP8_IGNORE_LINE = re.compile(r"#\s+noqa", re.IGNORECASE)22_PYLINT_SUPPRESSED_MESSAGE = re.compile(r"^Suppressed \'([a-z0-9-]+)\' \(from line \d+\)$")23def get_noqa_suppressions(file_contents):24    """25    Finds all pep8/flake8 suppression messages26    :param file_contents:27        A list of file lines28    :return:29        A pair - the first is whether to ignore the whole file, the30        second is a set of (0-indexed) line numbers to ignore.31    """32    ignore_whole_file = False33    ignore_lines = set()34    for line_number, line in enumerate(file_contents):35        if _FLAKE8_IGNORE_FILE.search(line):36            ignore_whole_file = True37        if _PEP8_IGNORE_LINE.search(line):38            ignore_lines.add(line_number + 1)39    return ignore_whole_file, ignore_lines40_PYLINT_EQUIVALENTS = {41    # TODO: blending has this info already?42    "unused-import": (43        ("pyflakes", "FL0001"),44        ("frosted", "E101"),45    )46}47def _parse_pylint_informational(messages):48    ignore_files = set()49    ignore_messages = defaultdict(lambda: defaultdict(list))50    for message in messages:51        if message.source == "pylint":52            if message.code == "suppressed-message":53                # this is a message indicating that a message was raised54                # by pylint but suppressed by configuration in the file55                match = _PYLINT_SUPPRESSED_MESSAGE.match(message.message)56                suppressed_code = match.group(1)57                line_dict = ignore_messages[message.location.path]58                line_dict[message.location.line].append(suppressed_code)59            elif message.code == "file-ignored":60                ignore_files.add(message.location.path)61    return ignore_files, ignore_messages62def get_suppressions(relative_filepaths, root, messages):63    """64    Given every message which was emitted by the tools, and the65    list of files to inspect, create a list of files to ignore,66    and a map of filepath -> line-number -> codes to ignore67    """68    paths_to_ignore = set()69    lines_to_ignore = defaultdict(set)70    messages_to_ignore = defaultdict(lambda: defaultdict(set))71    # first deal with 'noqa' style messages72    for filepath in relative_filepaths:73        abspath = os.path.join(root, filepath)74        try:75            file_contents = encoding.read_py_file(abspath).split("\n")76        except encoding.CouldNotHandleEncoding as err:77            # TODO: this output will break output formats such as JSON78            warnings.warn("{0}: {1}".format(err.path, err.cause), ImportWarning)79            continue80        ignore_file, ignore_lines = get_noqa_suppressions(file_contents)81        if ignore_file:82            paths_to_ignore.add(filepath)83        lines_to_ignore[filepath] |= ignore_lines84    # now figure out which messages were suppressed by pylint85    pylint_ignore_files, pylint_ignore_messages = _parse_pylint_informational(messages)86    paths_to_ignore |= pylint_ignore_files87    for filepath, line in pylint_ignore_messages.items():88        for line_number, codes in line.items():89            for code in codes:90                messages_to_ignore[filepath][line_number].add(("pylint", code))91                if code in _PYLINT_EQUIVALENTS:92                    for equivalent in _PYLINT_EQUIVALENTS[code]:93                        messages_to_ignore[filepath][line_number].add(equivalent)94    return paths_to_ignore, lines_to_ignore, messages_to_ignore

test_suppression.py

Source:test_suppression.py

...7        with open(path) as testfile:8            return testfile.readlines()9    def test_ignore_file(self):10        file_contents = self._get_file_contents('test_ignore_file/test.py')11        whole_file, _ = get_noqa_suppressions(file_contents)12        self.assertTrue(whole_file)13    def test_ignore_lines(self):14        file_contents = self._get_file_contents('test_ignore_lines/test.py')15        _, lines = get_noqa_suppressions(file_contents)...

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