view contrib/casesmash.py @ 24056:ae453d166d51

trydiff: replace 'binarydiff' variable by 'binary' variable

It's not obvious, but every path in the 'if opts.git or losedatafn:'
block will have checked whether the file is binary [1]. Let's assign
the result of this check to a variable so we can simplify by checking
'binary and opts.git' in only one place instead of every place we
currently assign to 'binarydiff'.

 [1] Except when deleting an empty file, but checking whether an empty
     string is binary is very cheap anyway.

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')