cleanup of revlog.group when repository is local
revlog.group cached every chunk from the revlog, the behaviour was
needed to minimize the roundtrip with old-http.
The patch export the information that the repository is local or not
from the repository object down to the revlog.
Then it uses the workaround for old-http only if the repository is non-local.
The memory used server side when pulling goes down to less than 30Mo maximum
whereas without the patch more than 160Mo was used when cloning the linux kernel
repository.
The time used by cloning is roughly the same (although some caching could be
implemented if needed):
before
110.25user 20.90system 2:52.00elapsed 76%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+708707minor)pagefaults 0swaps
after
112.85user 22.98system 2:50.66elapsed 79%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+862862minor)pagefaults 0swaps
# sshrepo.py - ssh repository proxy class 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.
from node import *
from remoterepo import *
from i18n import gettext as _
from demandload import *
demandload(globals(), "hg os re stat")
class sshrepository(remoterepository):
def __init__(self, ui, path):
self.url = path
self.ui = ui
m = re.match(r'ssh://(([^@]+)@)?([^:/]+)(:(\d+))?(/(.*))?', path)
if not m:
raise hg.RepoError(_("couldn't parse destination %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")
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')
def readerr(self):
while 1:
size = os.fstat(self.pipee.fileno())[stat.ST_SIZE]
if size == 0: break
l = self.pipee.readline()
if not l: break
self.ui.status(_("remote: "), l)
def __del__(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
def dev(self):
return -1
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:
raise hg.RepoError(_("unexpected response '%s'") % l)
return r.read(l)
def lock(self):
self.call("lock")
return remotelock(self)
def unlock(self):
self.call("unlock")
def heads(self):
d = self.call("heads")
try:
return map(bin, d[:-1].split(" "))
except:
raise hg.RepoError(_("unexpected response '%s'") % (d[:400] + "..."))
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:
raise hg.RepoError(_("unexpected response '%s'") % (d[:400] + "..."))
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:
raise hg.RepoError(_("unexpected response '%s'") % (d[:400] + "..."))
def changegroup(self, nodes):
n = " ".join(map(hex, nodes))
f = self.do_cmd("changegroup", roots=n)
return self.pipei
def addchangegroup(self, cg):
d = self.call("addchangegroup")
if d:
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())
return self.pipei.read(l) != ""