tests/filterpyflakes.py
author timeless@mozdev.org
Tue, 08 Sep 2015 20:30:01 -0400
changeset 26203 b764f3c61bc7
parent 26023 48671378daeb
child 27285 aef5b606d3ee
permissions -rwxr-xr-x
histedit: fix grammar in cleanupnode comment
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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#!/usr/bin/env python
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# Filter output by pyflakes to control which warnings we check
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import sys, re
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def makekey(typeandline):
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    """
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    for sorting lines by: msgtype, path/to/file, lineno, message
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    typeandline is a sequence of a message type and the entire message line
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    the message line format is path/to/file:line: message
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    >>> makekey((3, 'example.py:36: any message'))
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    (3, 'example.py', 36, ' any message')
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    >>> makekey((7, 'path/to/file.py:68: dummy message'))
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    (7, 'path/to/file.py', 68, ' dummy message')
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    >>> makekey((2, 'fn:88: m')) > makekey((2, 'fn:9: m'))
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    True
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    """
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    msgtype, line = typeandline
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    fname, line, message = line.split(":", 2)
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    # line as int for ordering 9 before 88
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    return msgtype, fname, int(line), message
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lines = []
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for line in sys.stdin:
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    # We whitelist tests (see more messages in pyflakes.messages)
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    pats = [
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            (r"imported but unused", None),
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            (r"local variable '.*' is assigned to but never used", None),
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            (r"unable to detect undefined names", None),
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            (r"undefined name '.*'",
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             r"undefined name '(WindowsError|memoryview)'")
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           ]
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    for msgtype, (pat, excl) in enumerate(pats):
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        if re.search(pat, line) and (not excl or not re.search(excl, line)):
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            break # pattern matches
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    else:
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        continue # no pattern matched, next line
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    fn = line.split(':', 1)[0]
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    f = open(fn)
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    data = f.read()
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    f.close()
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    if 'no-' 'check-code' in data:
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        continue
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    lines.append((msgtype, line))
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for msgtype, line in sorted(lines, key=makekey):
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    sys.stdout.write(line)
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print
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# self test of "undefined name" detection for other than 'memoryview'
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if False:
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    print undefinedname