view contrib/casesmash.py @ 26593:c60dfcc0abf2

cvsps: fix computation of parent revisions when log caching is on

cvsps computes the parent revisions of log entries by walking the cvs log
sorted by (rcs, revision) and by iteratively maintaining a 'versions'
dictionary which maps a (rcs, branch) pair onto the last revision seen for that
pair. When log caching is on and a log cache exists, cvsps fails to set the
parent revisions of new log entries because it does not iterate over the log
cache in the parents computation. A complication is that a file rcs can change
(move to/from the attic), with respect to its value in the log cache, if the
file is removed/added back. This patch adds an iteration over the log cache to
update the rcs of cached log entries, if changed, and to properly populate the
'versions' dictionary.

import os, __builtin__
from mercurial import util

def lowerwrap(scope, funcname):
    f = getattr(scope, funcname)
    def wrap(fname, *args, **kwargs):
        d, base = os.path.split(fname)
        try:
            files = os.listdir(d or '.')
        except OSError:
            files = []
        if base in files:
            return f(fname, *args, **kwargs)
        for fn in files:
            if fn.lower() == base.lower():
                return f(os.path.join(d, fn), *args, **kwargs)
        return f(fname, *args, **kwargs)
    scope.__dict__[funcname] = wrap

def normcase(path):
    return path.lower()

os.path.normcase = normcase

for f in 'file open'.split():
    lowerwrap(__builtin__, f)

for f in "chmod chown open lstat stat remove unlink".split():
    lowerwrap(os, f)

for f in "exists lexists".split():
    lowerwrap(os.path, f)

lowerwrap(util, 'posixfile')