Mercurial > hg
view mercurial/sshrepo.py @ 14270:d6907a5674a2
revlog: support writing generaldelta revlogs
With generaldelta switched on, deltas are always computed against the first
parent when adding revisions. This is done regardless of what revision the
incoming bundle, if any, is deltaed against.
The exact delta building strategy is subject to change, but this will not
affect compatibility.
Generaldelta is switched off by default.
author | Sune Foldager <cryo@cyanite.org> |
---|---|
date | Sun, 08 May 2011 21:32:33 +0200 |
parents | 924c82157d46 |
children | 82f3b0f3f0a5 |
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# 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 version 2 or any later version. from i18n import _ import util, error, wireproto class remotelock(object): def __init__(self, repo): self.repo = repo def release(self): self.repo.unlock() self.repo = None def __del__(self): if self.repo: self.release() class sshrepository(wireproto.wirerepository): def __init__(self, ui, path, create=0): self._url = path self.ui = ui u = util.url(path, parsequery=False, parsefragment=False) if u.scheme != 'ssh' or not u.host or u.path is None: self._abort(error.RepoError(_("couldn't parse location %s") % path)) self.user = u.user if u.passwd is not None: self._abort(error.RepoError(_("password in URL not supported"))) self.host = u.host self.port = u.port self.path = u.path or "." sshcmd = self.ui.config("ui", "ssh", "ssh") remotecmd = self.ui.config("ui", "remotecmd", "hg") args = util.sshargs(sshcmd, self.host, self.user, self.port) if create: cmd = '%s %s "%s init %s"' cmd = cmd % (sshcmd, args, remotecmd, self.path) ui.note(_('running %s\n') % cmd) res = util.system(cmd) if res != 0: self._abort(error.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) cmd = util.quotecommand(cmd) ui.note(_('running %s\n') % cmd) self.pipeo, self.pipei, self.pipee = util.popen3(cmd) # skip any noise generated by remote shell self._callstream("hello") r = self._callstream("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._abort(error.RepoError(_("no suitable response from remote hg"))) self.capabilities = set() for l in reversed(lines): if l.startswith("capabilities:"): self.capabilities.update(l[:-1].split(":")[1].split()) break def readerr(self): while 1: size = util.fstat(self.pipee).st_size if size == 0: break s = self.pipee.read(size) if not s: break for l in s.splitlines(): self.ui.status(_("remote: "), l, '\n') def _abort(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 _callstream(self, cmd, **args): self.ui.debug("sending %s command\n" % cmd) self.pipeo.write("%s\n" % cmd) _func, names = wireproto.commands[cmd] keys = names.split() wireargs = {} for k in keys: if k == '*': wireargs['*'] = args break else: wireargs[k] = args[k] del args[k] for k, v in sorted(wireargs.iteritems()): self.pipeo.write("%s %d\n" % (k, len(v))) if isinstance(v, dict): for dk, dv in v.iteritems(): self.pipeo.write("%s %d\n" % (dk, len(dv))) self.pipeo.write(dv) else: self.pipeo.write(v) self.pipeo.flush() return self.pipei def _call(self, cmd, **args): self._callstream(cmd, **args) return self._recv() def _callpush(self, cmd, fp, **args): r = self._call(cmd, **args) if r: return '', r while 1: d = fp.read(4096) if not d: break self._send(d) self._send("", flush=True) r = self._recv() if r: return '', r return self._recv(), '' def _decompress(self, stream): return stream def _recv(self): l = self.pipei.readline() self.readerr() try: l = int(l) except ValueError: self._abort(error.ResponseError(_("unexpected response:"), l)) return self.pipei.read(l) def _send(self, data, flush=False): self.pipeo.write("%d\n" % len(data)) if data: self.pipeo.write(data) if flush: self.pipeo.flush() self.readerr() def lock(self): self._call("lock") return remotelock(self) def unlock(self): self._call("unlock") def addchangegroup(self, cg, source, url): '''Send a changegroup to the remote server. Return an integer similar to unbundle(). DEPRECATED, since it requires locking the remote.''' d = self._call("addchangegroup") if d: self._abort(error.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() r = self._recv() if not r: return 1 try: return int(r) except ValueError: self._abort(error.ResponseError(_("unexpected response:"), r)) instance = sshrepository