Mercurial > hg
view mercurial/lock.py @ 405:99470ae6b424
Check if repository exists
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Check if repository exists
From: Goffredo Baroncelli <kreijack@libero.it>
Subject: Re: Trivial: in remoterepository.__init__ check if the repository
exist
I hope that this is correct :-)
Another typo, another patch, tank to Peter Stamfest and Radoslaw Szkodzinski.
The patch is trivial: adds a check in the body of the init method of the
+remoterepository
class. Before if the path didn't exist, hg would not raise any error.
Test manually performed after the patch has been merged:
test: result
create a new repository from another local repository OK ( no problem )
create an empty repository OK ( no problem )
pull from a not existent repositary OK ( raise an error )
(error message tweaked by mpm)
manifest hash: ac7f625a8d87c693b61718b9fc5604d28b882bbd
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author | mpm@selenic.com |
---|---|
date | Tue, 21 Jun 2005 18:29:52 -0800 |
parents | 0b4c5cb953d9 |
children | 10c43444a38e 688d03d6997a |
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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 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: os.symlink(str(pid), self.f) self.held = 1 except: raise LockHeld(os.readlink(self.f)) def release(self): if self.held: self.held = 0 os.unlink(self.f)