Mercurial > hg
view mercurial/sshpeer.py @ 21610:d6056805f8f4
bundle2: introduce a ``params`` dictionary on unbundled parts
This exposes all parameters the part received into a ``part.params`` dictionary.
This should be much easier to use.
This dictionary itself does not expose the mandatory or advisory aspect of
parameters, but no current users of bundle2 actually enforce any of this logic.
Coming changesets will improve this aspect.
author | Pierre-Yves David <pierre-yves.david@fb.com> |
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date | Fri, 23 May 2014 17:26:57 -0700 |
parents | 83ce71ef7804 |
children | 234e4c24b980 |
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# sshpeer.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. import re 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() def _serverquote(s): '''quote a string for the remote shell ... which we assume is sh''' if re.match('[a-zA-Z0-9@%_+=:,./-]*$', s): return s return "'%s'" % s.replace("'", "'\\''") class sshpeer(wireproto.wirepeer): def __init__(self, ui, path, create=False): self._url = path self.ui = ui self.pipeo = self.pipei = self.pipee = None 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' % (sshcmd, args, util.shellquote("%s init %s" % (_serverquote(remotecmd), _serverquote(self.path)))) ui.debug('running %s\n' % cmd) res = util.system(cmd) if res != 0: self._abort(error.RepoError(_("could not create remote repo"))) self._validaterepo(sshcmd, args, remotecmd) def url(self): return self._url def _validaterepo(self, sshcmd, args, remotecmd): # cleanup up previous run self.cleanup() cmd = '%s %s %s' % (sshcmd, args, util.shellquote("%s -R %s serve --stdio" % (_serverquote(remotecmd), _serverquote(self.path)))) self.ui.debug('running %s\n' % cmd) cmd = util.quotecommand(cmd) # while self.subprocess isn't used, having it allows the subprocess to # to clean up correctly later self.pipeo, self.pipei, self.pipee, self.subprocess = util.popen4(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: self.ui.debug("remote: ", l) lines.append(l) max_noise -= 1 else: self._abort(error.RepoError(_('no suitable response from ' 'remote hg'))) self._caps = set() for l in reversed(lines): if l.startswith("capabilities:"): self._caps.update(l[:-1].split(":")[1].split()) break def _capabilities(self): return self._caps def readerr(self): while True: 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): if self.pipeo is None: return self.pipeo.close() self.pipei.close() try: # read the error descriptor until EOF for l in self.pipee: self.ui.status(_("remote: "), l) except (IOError, ValueError): pass self.pipee.close() __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 _callcompressable(self, cmd, **args): return self._callstream(cmd, **args) 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 True: 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 _calltwowaystream(self, cmd, fp, **args): r = self._call(cmd, **args) if r: # XXX needs to be made better raise util.Abort('unexpected remote reply: %s' % r) while True: d = fp.read(4096) if not d: break self._send(d) self._send("", flush=True) return self.pipei def _recv(self): l = self.pipei.readline() if l == '\n': err = [] while True: line = self.pipee.readline() if line == '-\n': break err.extend([line]) if len(err) > 0: # strip the trailing newline added to the last line server-side err[-1] = err[-1][:-1] self._abort(error.OutOfBandError(*err)) 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, lock=None): '''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 True: 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 = sshpeer