view contrib/casesmash.py @ 33765:e2fc2122029c

wireproto: remove support for local results in @batchable (API)

@peer.batchable decorated generator functions have two forms:

    yield value, None

and

    yield args, future
    yield value

These forms have been present since the decorator was introduced.

There are currently no in-repo consumers of the first form. So this
commit removes support for it.

Note that remoteiterbatcher.submit() asserts the 2nd form. And
b6e71f8af5b8 removed the last user of remotebatcher, forcing everyone
to remoteiterbatcher. So anything relying on this in the wild would
have been broken since b6e71f8af5b8.

.. api::

   @peer.batchable can no longer emit local values

Differential Revision: https://phab.mercurial-scm.org/D318

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')