localrepository.status: only acquire wlock if actually needed.
This speeds up the common case of not needing to update the dirstate,
and avoids the need to reload and parse the dirstate "just in case".
# sshrepo.py - ssh repository proxy class for mercurial
#
# Copyright 2005, 2006 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.
from node import *
from remoterepo import *
from i18n import _
import hg, os, re, stat, util
class sshrepository(remoterepository):
def __init__(self, ui, path, create=0):
self._url = path
self.ui = ui
m = re.match(r'^ssh://(([^@]+)@)?([^:/]+)(:(\d+))?(/(.*))?$', path)
if not m:
self.raise_(hg.RepoError(_("couldn't parse location %s") % path))
self.user = m.group(2)
self.host = m.group(3)
self.port = m.group(5)
self.path = m.group(7) or "."
args = self.user and ("%s@%s" % (self.user, self.host)) or self.host
args = self.port and ("%s -p %s") % (args, self.port) or args
sshcmd = self.ui.config("ui", "ssh", "ssh")
remotecmd = self.ui.config("ui", "remotecmd", "hg")
if create:
cmd = '%s %s "%s init %s"'
cmd = cmd % (sshcmd, args, remotecmd, self.path)
ui.note('running %s\n' % cmd)
res = os.system(cmd)
if res != 0:
self.raise_(hg.RepoError(_("could not create remote repo")))
self.validate_repo(ui, sshcmd, args, remotecmd)
def url(self):
return self._url
def validate_repo(self, ui, sshcmd, args, remotecmd):
# cleanup up previous run
self.cleanup()
cmd = '%s %s "%s -R %s serve --stdio"'
cmd = cmd % (sshcmd, args, remotecmd, self.path)
ui.note('running %s\n' % cmd)
self.pipeo, self.pipei, self.pipee = os.popen3(cmd, 'b')
# skip any noise generated by remote shell
self.do_cmd("hello")
r = self.do_cmd("between", pairs=("%s-%s" % ("0"*40, "0"*40)))
lines = ["", "dummy"]
max_noise = 500
while lines[-1] and max_noise:
l = r.readline()
self.readerr()
if lines[-1] == "1\n" and l == "\n":
break
if l:
ui.debug(_("remote: "), l)
lines.append(l)
max_noise -= 1
else:
self.raise_(hg.RepoError(_("no suitable response from remote hg")))
self.capabilities = ()
lines.reverse()
for l in lines:
if l.startswith("capabilities:"):
self.capabilities = l[:-1].split(":")[1].split()
break
def readerr(self):
while 1:
size = util.fstat(self.pipee).st_size
if size == 0: break
l = self.pipee.readline()
if not l: break
self.ui.status(_("remote: "), l)
def raise_(self, exception):
self.cleanup()
raise exception
def cleanup(self):
try:
self.pipeo.close()
self.pipei.close()
# read the error descriptor until EOF
for l in self.pipee:
self.ui.status(_("remote: "), l)
self.pipee.close()
except:
pass
__del__ = cleanup
def do_cmd(self, cmd, **args):
self.ui.debug(_("sending %s command\n") % cmd)
self.pipeo.write("%s\n" % cmd)
for k, v in args.items():
self.pipeo.write("%s %d\n" % (k, len(v)))
self.pipeo.write(v)
self.pipeo.flush()
return self.pipei
def call(self, cmd, **args):
r = self.do_cmd(cmd, **args)
l = r.readline()
self.readerr()
try:
l = int(l)
except:
self.raise_(util.UnexpectedOutput(_("unexpected response:"), l))
return r.read(l)
def lock(self):
self.call("lock")
return remotelock(self)
def unlock(self):
self.call("unlock")
def lookup(self, key):
d = self.call("lookup", key=key)
success, data = d[:-1].split(" ", 1)
if int(success):
return bin(data)
else:
self.raise_(hg.RepoError(data))
def heads(self):
d = self.call("heads")
try:
return map(bin, d[:-1].split(" "))
except:
self.raise_(util.UnexpectedOutput(_("unexpected response:"), d))
def branches(self, nodes):
n = " ".join(map(hex, nodes))
d = self.call("branches", nodes=n)
try:
br = [ tuple(map(bin, b.split(" "))) for b in d.splitlines() ]
return br
except:
self.raise_(util.UnexpectedOutput(_("unexpected response:"), d))
def between(self, pairs):
n = "\n".join(["-".join(map(hex, p)) for p in pairs])
d = self.call("between", pairs=n)
try:
p = [ l and map(bin, l.split(" ")) or [] for l in d.splitlines() ]
return p
except:
self.raise_(util.UnexpectedOutput(_("unexpected response:"), d))
def changegroup(self, nodes, kind):
n = " ".join(map(hex, nodes))
return self.do_cmd("changegroup", roots=n)
def changegroupsubset(self, bases, heads, kind):
bases = " ".join(map(hex, bases))
heads = " ".join(map(hex, heads))
return self.do_cmd("changegroupsubset", bases=bases, heads=heads)
def unbundle(self, cg, heads, source):
d = self.call("unbundle", heads=' '.join(map(hex, heads)))
if d:
self.raise_(hg.RepoError(_("push refused: %s") % d))
while 1:
d = cg.read(4096)
if not d: break
self.pipeo.write(str(len(d)) + '\n')
self.pipeo.write(d)
self.readerr()
self.pipeo.write('0\n')
self.pipeo.flush()
self.readerr()
d = self.pipei.readline()
if d != '\n':
return 1
l = int(self.pipei.readline())
r = self.pipei.read(l)
if not r:
return 1
return int(r)
def addchangegroup(self, cg, source, url):
d = self.call("addchangegroup")
if d:
self.raise_(hg.RepoError(_("push refused: %s") % d))
while 1:
d = cg.read(4096)
if not d: break
self.pipeo.write(d)
self.readerr()
self.pipeo.flush()
self.readerr()
l = int(self.pipei.readline())
r = self.pipei.read(l)
if not r:
return 1
return int(r)
def stream_out(self):
return self.do_cmd('stream_out')
instance = sshrepository