view contrib/casesmash.py @ 39688:2f9cdb5b3644

localrepo: move some vfs initialization out of __init__

In order to make repository types more dynamic, we'll need to move the
logic for determining repository behavior out of
localrepository.__init__ so we can influence behavior before the type
is instantiated.

This commit starts that process by moving working directory and .hg/
vfs initialization to our new standalone function for instantiating
local repositories.

Aside from API changes, behavior should be fully backwards compatible.

.. api::

   localrepository.__init__ now does less work and accepts new args

   Use ``hg.repository()``, ``localrepo.instance()``, or
   ``localrepo.makelocalrepository()`` to obtain a new local repository
   instance instead of calling the ``localrepository`` constructor
   directly.

Differential Revision: https://phab.mercurial-scm.org/D4564

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')