Mercurial > hg
view mercurial/txnutil.py @ 47664:119b9c8db94d
dirstate-item: use an explicit __init__ function instead of the attrs one
For now, this is not doing anything special, however we plan to make it different in the future. So we start simple.
Differential Revision: https://phab.mercurial-scm.org/D11117
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
---|---|
date | Tue, 13 Jul 2021 13:04:49 +0200 |
parents | 89a2afe31e82 |
children | 6000f5b25c9b |
line wrap: on
line source
# txnutil.py - transaction related utilities # # Copyright FUJIWARA Katsunori <foozy@lares.dti.ne.jp> and others # # 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 import errno from . import encoding def mayhavepending(root): """return whether 'root' may have pending changes, which are visible to this process. """ return root == encoding.environ.get(b'HG_PENDING') def trypending(root, vfs, filename, **kwargs): """Open file to be read according to HG_PENDING environment variable This opens '.pending' of specified 'filename' only when HG_PENDING is equal to 'root'. This returns '(fp, is_pending_opened)' tuple. """ if mayhavepending(root): try: return (vfs(b'%s.pending' % filename, **kwargs), True) except IOError as inst: if inst.errno != errno.ENOENT: raise return (vfs(filename, **kwargs), False)