hg: don't complain about missing repo with no args
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
hg: don't complain about missing repo with no args
manifest hash: d8172c0b583d6f2ff60cf49e74c1247de8d9d673
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.0 (GNU/Linux)
iD8DBQFCnVmeywK+sNU5EO8RAj79AJ4wN1SwC8+e1amxv+EAd6VKhpXXYgCeIPDK
iVX9Z0Ix8DiC3p8fquyhFwM=
=c6EH
-----END PGP SIGNATURE-----
# 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)