tests: check availability of pyflakes by trying to import pyflakes module
Since e397c6d74652, we use the pyflakes module instead of the pyflakes
executable. As was pointed out during the review, the hghave check can be
rewritten to try to import the pyflakes module instead of spawning a new
subprocess.
# narrowdirstate.py - extensions to mercurial dirstate to support narrow clones
#
# Copyright 2017 Google, Inc.
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
from __future__ import absolute_import
from mercurial.i18n import _
from mercurial import error
def wrapdirstate(repo, dirstate):
"""Add narrow spec dirstate ignore, block changes outside narrow spec."""
def _editfunc(fn):
def _wrapper(self, *args, **kwargs):
narrowmatch = repo.narrowmatch()
for f in args:
if f is not None and not narrowmatch(f) and f not in self:
raise error.Abort(
_(
b"cannot track '%s' - it is outside "
+ b"the narrow clone"
)
% f
)
return fn(self, *args, **kwargs)
return _wrapper
class narrowdirstate(dirstate.__class__):
# Prevent adding/editing/copying/deleting files that are outside the
# sparse checkout
@_editfunc
def normal(self, *args, **kwargs):
return super(narrowdirstate, self).normal(*args, **kwargs)
@_editfunc
def add(self, *args):
return super(narrowdirstate, self).add(*args)
@_editfunc
def normallookup(self, *args):
return super(narrowdirstate, self).normallookup(*args)
@_editfunc
def copy(self, *args):
return super(narrowdirstate, self).copy(*args)
@_editfunc
def remove(self, *args):
return super(narrowdirstate, self).remove(*args)
@_editfunc
def merge(self, *args):
return super(narrowdirstate, self).merge(*args)
def rebuild(self, parent, allfiles, changedfiles=None):
if changedfiles is None:
# Rebuilding entire dirstate, let's filter allfiles to match the
# narrowspec.
allfiles = [f for f in allfiles if repo.narrowmatch()(f)]
super(narrowdirstate, self).rebuild(parent, allfiles, changedfiles)
dirstate.__class__ = narrowdirstate
return dirstate