Mercurial > hg
view mercurial/txnutil.py @ 52059:b332ae615714
merge: improve working-copy mtime race handling
Explanations inline. This also makes use of `make_mtime_reliable`, which
unifies our mtime raciness logic from the status.
On top of this, this fixes the handling of the pure dirstate status to better
catch racy status, as we've been doing in Rust for a long time now.
author | Raphaël Gomès <rgomes@octobus.net> |
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date | Wed, 16 Oct 2024 19:14:30 +0200 |
parents | f4733654f144 |
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 __future__ import annotations 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)