Mercurial > hg
view mercurial/txnutil.py @ 45661:ebc14a2ad23d
salvaged: track removal-candidates in more cases
If we want to use this information for copy tracing, then we need to be able to
record it.
First we unlock the recording of deletion candidates, and we will actually record
the data in the next changeset.
Differential Revision: https://phab.mercurial-scm.org/D9119
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
---|---|
date | Mon, 14 Sep 2020 23:46:38 +0200 |
parents | 687b865b95ad |
children | 89a2afe31e82 |
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)