Add locate command.
# HG changeset patch
# User Bryan O'Sullivan <bos@serpentine.com>
# Node ID ebf5eba347a17a5c09000b3342caf350cd060a1b
# Parent d2994b5298fb20f87dc1d4747635b280db3c0526
Add locate command.
Used for finding files with names that match specific patterns,
such as "*.c".
This patch also introduces localrepository.getcwd, which returns the
current directory relative to the repository root.
# 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:
raise LockHeld(util.readlock(self.f))
def release(self):
if self.held:
self.held = 0
try:
os.unlink(self.f)
except: pass