view tests/filterpyflakes.py @ 24849:aff2aca3420e stable

bundle2: also capture hook output during processing

External hook used to directly write on stdout and stderr. As a result their
output was not captured by the bundle2 processing. This resulted in confusing
out of order output on the client side. We are now capturing hooks output in
this context.

#!/usr/bin/env python

# Filter output by pyflakes to control which warnings we check

import sys, re, os

def makekey(typeandline):
    """
    for sorting lines by: msgtype, path/to/file, lineno, message

    typeandline is a sequence of a message type and the entire message line
    the message line format is path/to/file:line: message

    >>> makekey((3, 'example.py:36: any message'))
    (3, 'example.py', 36, ' any message')
    >>> makekey((7, 'path/to/file.py:68: dummy message'))
    (7, 'path/to/file.py', 68, ' dummy message')
    >>> makekey((2, 'fn:88: m')) > makekey((2, 'fn:9: m'))
    True
    """

    msgtype, line = typeandline
    fname, line, message = line.split(":", 2)
    # line as int for ordering 9 before 88
    return msgtype, fname, int(line), message


lines = []
for line in sys.stdin:
    # We whitelist tests (see more messages in pyflakes.messages)
    pats = [
            (r"imported but unused", None),
            (r"local variable '.*' is assigned to but never used", None),
            (r"unable to detect undefined names", None),
            (r"undefined name '.*'",
             r"undefined name '(WindowsError|memoryview)'")
           ]

    for msgtype, (pat, excl) in enumerate(pats):
        if re.search(pat, line) and (not excl or not re.search(excl, line)):
            break # pattern matches
    else:
        continue # no pattern matched, next line
    fn = line.split(':', 1)[0]
    f = open(os.path.join(os.path.dirname(os.path.dirname(__file__)), fn))
    data = f.read()
    f.close()
    if 'no-' 'check-code' in data:
        continue
    lines.append((msgtype, line))

for msgtype, line in sorted(lines, key=makekey):
    sys.stdout.write(line)
print

# self test of "undefined name" detection for other than 'memoryview'
if False:
    print undefinedname