Mercurial > hg
view tests/test-status-inprocess.py @ 31209:dd2364f5180a
localrepo: handle rename with hardlinks properly
In "aftertrans", we rename "journal.*" to "undo.*". We expect "journal.*"
files to disappear after renaming.
However, if "journal.foo" and "undo.foo" refer to a same file (hardlink),
rename may be a no-op, leaving both files on disk, according to Linux
manpage [1]:
If oldpath and newpath are existing hard links referring to the same
file, then rename() does nothing, and returns a suc‐ cess status.
The POSIX specification [2] is not very clear about what to do.
To be safe, remove "undo.*" before the rename so "journal.*" cannot be left
on disk.
[1]: http://man7.org/linux/man-pages/man2/rename.2.html
[2]: http://pubs.opengroup.org/onlinepubs/9699919799/
author | Jun Wu <quark@fb.com> |
---|---|
date | Thu, 02 Mar 2017 21:49:30 -0800 |
parents | d83ca854fa21 |
children | 9dfa4e9ed45d |
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#!/usr/bin/env python from __future__ import absolute_import, print_function from mercurial import ( commands, localrepo, ui as uimod, ) u = uimod.ui.load() print('% creating repo') repo = localrepo.localrepository(u, '.', create=True) f = open('test.py', 'w') try: f.write('foo\n') finally: f.close print('% add and commit') commands.add(u, repo, 'test.py') commands.commit(u, repo, message='*') commands.status(u, repo, clean=True) print('% change') f = open('test.py', 'w') try: f.write('bar\n') finally: f.close() # this would return clean instead of changed before the fix commands.status(u, repo, clean=True, modified=True)