Mercurial > hg
view mercurial/txnutil.py @ 32593:e4d0b2efb8b5
hidden: remove unnecessary guard condition
The "if visible" guard is now pretty pointless, because the function
call it guards will do almost no work anyway when there are no visible
revisions.
We can also stop wrapping "visible" in a set since it just needs to be
an iterable now.
author | Martin von Zweigbergk <martinvonz@google.com> |
---|---|
date | Tue, 30 May 2017 13:16:32 -0700 |
parents | 206532700213 |
children | 2372284d9457 |
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('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('%s.pending' % filename, **kwargs), True) except IOError as inst: if inst.errno != errno.ENOENT: raise return (vfs(filename, **kwargs), False)