Mercurial > hg
view mercurial/txnutil.py @ 44139:2ad4e8aefcf4
lfs: explicitly close the file handle for the blob being uploaded
The previous code relied on reading the blob fully to close it. The obvious
problem is if an error occurs before that point. But there is also a problem
when using workers where the data may need to be re-read, which can't happen
once it is closed. This eliminates the surprising behavior before attempting to
fix the worker problem.
Differential Revision: https://phab.mercurial-scm.org/D7957
author | Matt Harbison <matt_harbison@yahoo.com> |
---|---|
date | Tue, 21 Jan 2020 09:51:39 -0500 |
parents | 687b865b95ad |
children | 89a2afe31e82 |
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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)