grep: make -frREV follow history from the specified revision (BC)
This is close to what "log -frREV" will do, and is backported from
8b4b9ee6001a, "log: make -fr show complete history from the given revs"
except for the "del opts['follow']" bit.
I'm planning to rewrite cmdutil.walkchangerevs() to share the core logic
with logcmdutil, and this is the first step towards that. There are still
many broken tests, but the fundamental behavior should be fixed by this
patch.
.. bc::
`hg grep -fr REV` now follows history from the specified `REV`, works in
the same way as `hg log -fr REV`. The previous behavior was to limit
the search space to `REV` while following the history.
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')