unix.py - mozsearch

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# This Source Code Form is subject to the terms of the Mozilla Public

# License, v. 2.0. If a copy of the MPL was not distributed with this

# file, You can obtain one at http://mozilla.org/MPL/2.0/.

import attr

from ..result import Issue

class UnixFormatter(object):

    """Formatter that respects Unix output conventions frequently

    employed by preprocessors and compilers.  The format is

    `<FILENAME>:<LINE>[:<COL>]: <RULE> <LEVEL>: <MESSAGE>`.

"""

    fmt = "{path}:{lineno}:{column} {rule} {level}: {message}"

    def __call__(self, result):

        msg = []

        for path, errors in sorted(result.issues.items()):

            for err in errors:

                assert isinstance(err, Issue)

                slots = attr.asdict(err)

                slots["path"] = slots["relpath"]

                slots["column"] = "%d:" % slots["column"] if slots["column"] else ""

                slots["rule"] = slots["rule"] or slots["linter"]

                msg.append(self.fmt.format(**slots))

        return "\n".join(msg)