view contrib/casesmash.py @ 48686:4507bc001365

obsolete: make sure windows tests pass when stat() is given a URL

This is a temporary fix for an issue that's only visible on windows, but exists
on other platforms as well.

The issue is if we're trying to use obsstore from a remote peer and that peer
is a static HTTP repo, vfs tries to os.stat() a remote file using a URL to that
file (e.g. http://localhost/repo/.hg/store/obsstore). The next patch in this
series makes branchcache obsolescence-aware, so in certain situations exchange
process will try os.stat()ing a URL. On windows this will produce an OSError
that is not ENOENT, but EINVAL instead (because of `:` symbol, for example).

Differential Revision: https://phab.mercurial-scm.org/D12100

from __future__ import absolute_import
import __builtin__
import os
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')