Mercurial > hg > mercurial-crew-with-dirclash
view mercurial/lock.py @ 967:1f3710636b45
[PATCH] Print timezone offset when outputting dates
Example:
% hg log | head -12
changeset: 791:41440890e57d2dbacde03a2a114e5114a031ea4a
tag: tip
user: Samuel Tardieu <sam@rfc1149.net>
date: Mon Jul 25 13:24:15 2005 +0200
summary: Parse various date formats when accepting user specified dates
[...]
changeset: 787:ba5c2021364ee876dae170e8f153e43bd0b2bd73
parent: 785:31a80e3723cee0a5991340facb2707e71983eb41
user: Bryan O'Sullivan <bos@serpentine.com>
date: Sun Jul 24 00:39:24 2005 -0800
summary: Get "forget" command to use new walk code.
[...]
author | Samuel Tardieu <sam@rfc1149.net> |
---|---|
date | Fri, 19 Aug 2005 23:23:42 -0800 |
parents | 574869103985 |
children | 6d5a62a549fa |
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# lock.py - simple locking scheme for mercurial # # Copyright 2005 Matt Mackall <mpm@selenic.com> # # This software may be used and distributed according to the terms # of the GNU General Public License, incorporated herein by reference. import os, time import util class LockHeld(Exception): pass class lock: def __init__(self, file, wait = 1): self.f = file self.held = 0 self.wait = wait self.lock() def __del__(self): self.release() def lock(self): while 1: try: self.trylock() return 1 except LockHeld, inst: if self.wait: time.sleep(1) continue raise inst def trylock(self): pid = os.getpid() try: util.makelock(str(pid), self.f) self.held = 1 except (OSError, IOError): raise LockHeld(util.readlock(self.f)) def release(self): if self.held: self.held = 0 try: os.unlink(self.f) except: pass