tests/filterpyflakes.py

tests: cleanup of svn url handling

The subversion tests used different tricks to create properly encoded URLs,
partly due to partial support for different ways of running the tests on
windows. Now we only need/support one way of running the tests on windows.

Windows URLs should look like 'file:///c:/foo%20bar' and on Unix platforms
like 'file:///tmp/baz'.

'pwd' in the test framework will on Windows emit paths like 'c:/foo bar'.
Explicit handling of backslashes in paths is thus no longer needed and is
removed.  Paths on windows do however need an extra '/' compared to other
platforms.

This change makes test-subrepo-svn.t pass on windows with msys. Other tests
might need more work.

#!/usr/bin/env python

# Filter output by pyflakes to control which warnings we check

import sys, re, os

def makekey(message):
    # "path/file:line: message"
    match = re.search(r"(line \d+)", message)
    line = ''
    if match:
        line = match.group(0)
        message = re.sub(r"(line \d+)", '', message)
    return re.sub(r"([^:]*):([^:]+):([^']*)('[^']*')(.*)$",
                  r'\3:\5:\4:\1:\2:' + line,
                  message)

lines = []
for line in sys.stdin:
    # We whitelist tests
    pats = [
            r"imported but unused",
            r"local variable '.*' is assigned to but never used",
            r"unable to detect undefined names",
           ]
    if not re.search('|'.join(pats), line):
        continue
    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(line)

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