contrib/casesmash.py

packaging: don't bundle DLLs in py2exe library.zip for x86 builds

I had ported the x86/x64 behavior difference from the Inno
Setup installer files. Why things were this way, I'm not sure.

The WiX configuration files are expecting to have standalone
DLL files for both configurations. And the 32-bit WiX installers
were broken due to missing DLLs.

Let's standardize on standalone DLL files on all configurations
for consistency. I /think/ this will be faster, as I /think/
py2exe binaries would have to extract the DLL to a temporary file
in order to load it. But I'm not 100% sure about that.

Differential Revision: https://phab.mercurial-scm.org/D6135

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')