Mercurial > hg
view mercurial/txnutil.py @ 51096:8ec2de9c6770
revlog: move the_revisioncache on the inner object
The goal for this inner object is to compute that things we cache, it make more
sense to have the inner object handle it directly.
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
---|---|
date | Thu, 19 Oct 2023 03:33:59 +0200 |
parents | 2e726c934fcd |
children |
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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 . 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 FileNotFoundError: pass return (vfs(filename, **kwargs), False)