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
'''
Examples of useful python hooks for Mercurial.
'''
from __future__ import absolute_import
from mercurial import (
patch,
util,
)
def diffstat(ui, repo, **kwargs):
'''Example usage:
[hooks]
commit.diffstat = python:/path/to/this/file.py:diffstat
changegroup.diffstat = python:/path/to/this/file.py:diffstat
'''
if kwargs.get('parent2'):
return
node = kwargs['node']
first = repo[node].p1().node()
if 'url' in kwargs:
last = repo['tip'].node()
else:
last = node
diff = patch.diff(repo, first, last)
ui.write(patch.diffstat(util.iterlines(diff)))