[PATCH] Force "hg clone" to always create a new directory
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[PATCH] Force "hg clone" to always create a new directory
From: Bryan O'Sullivan <bos@serpentine.com>
I just screwed myself by typing "hg clone foo" without specifying a
destination directory, and after I was done mopping up the mess,
concluded that this is a dangerous mode of operation that has no
practical value.
I've thus modified the clone command so that it always creates a
destination directory. If none is specified, the destination is taken
as the basename of the source.
hg clone foo
-> error, because foo already exists
hg clone http://www.selenic.com/hg
-> new repo, named hg
hg clone ../bar
-> new repo, named bar
manifest hash: f21ed8f805a60c1326d99220772e1574b0870d6c
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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:
raise LockHeld(util.readlock(self.f))
def release(self):
if self.held:
self.held = 0
try:
os.unlink(self.f)
except: pass