Mercurial > hg
view mercurial/txnutil.py @ 45667:0303fc1f43f8
changing-files: add clean computation of changed files for linear changesets
The `files` field is not reliable, so we need to compute things from scratch. We
deal with the second simplest case, linear changesets. We diff the current
manifest with the parent manifest. This reveal the file added, changed and
removed.
Differential Revision: https://phab.mercurial-scm.org/D9127
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
---|---|
date | Tue, 29 Sep 2020 22:46:29 +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)