Mercurial > hg
view mercurial/txnutil.py @ 46158:1fcfff09cac5
copies: avoid early return in _combine_changeset_copies
We have to change how we deal with matching (see next changeset) and that
processing is common. So we shuffle things around before doing the semantic
change for clarity.
Differential Revision: https://phab.mercurial-scm.org/D9584
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
---|---|
date | Sun, 13 Dec 2020 20:26:27 +0100 |
parents | 89a2afe31e82 |
children | 6000f5b25c9b |
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# 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)