Mercurial > hg
view mercurial/txnutil.py @ 46910:df7439cc6806
urlutil: add a `get_pull_paths` to perform the pull destination logic
As is this changeset does not change anything. However having an official empty
point will help unifying the logic and encapsulate the details and update the
logic to support path definition pointing to multiple other path.
Differential Revision: https://phab.mercurial-scm.org/D10378
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Tue, 13 Apr 2021 12:28:44 +0200 |
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)