Mercurial > hg
view mercurial/sshserver.py @ 2874:4ec58b157265
refactor text diff/patch code.
rename commands.dodiff to patch.diff.
rename commands.doexport to patch.export.
move some functions from commands to new mercurial.cmdutil module.
turn list of diff options into mdiff.diffopts class.
patch.diff and patch.export now has clean api for call from 3rd party
python code.
author | Vadim Gelfer <vadim.gelfer@gmail.com> |
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date | Sat, 12 Aug 2006 16:13:27 -0700 |
parents | 345bac2bc4ec |
children | 53e843840349 |
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# sshserver.py - ssh protocol server support for mercurial # # Copyright 2005 Matt Mackall <mpm@selenic.com> # Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com> # # This software may be used and distributed according to the terms # of the GNU General Public License, incorporated herein by reference. from demandload import demandload from i18n import gettext as _ from node import * demandload(globals(), "os streamclone sys tempfile util") class sshserver(object): def __init__(self, ui, repo): self.ui = ui self.repo = repo self.lock = None self.fin = sys.stdin self.fout = sys.stdout sys.stdout = sys.stderr # Prevent insertion/deletion of CRs util.set_binary(self.fin) util.set_binary(self.fout) def getarg(self): argline = self.fin.readline()[:-1] arg, l = argline.split() val = self.fin.read(int(l)) return arg, val def respond(self, v): self.fout.write("%d\n" % len(v)) self.fout.write(v) self.fout.flush() def serve_forever(self): while self.serve_one(): pass sys.exit(0) def serve_one(self): cmd = self.fin.readline()[:-1] if cmd: impl = getattr(self, 'do_' + cmd, None) if impl: impl() else: self.respond("") return cmd != '' def do_heads(self): h = self.repo.heads() self.respond(" ".join(map(hex, h)) + "\n") def do_hello(self): '''the hello command returns a set of lines describing various interesting things about the server, in an RFC822-like format. Currently the only one defined is "capabilities", which consists of a line in the form: capabilities: space separated list of tokens ''' caps = ['unbundle'] if self.ui.configbool('server', 'uncompressed'): caps.append('stream=%d' % self.repo.revlogversion) self.respond("capabilities: %s\n" % (' '.join(caps),)) def do_lock(self): '''DEPRECATED - allowing remote client to lock repo is not safe''' self.lock = self.repo.lock() self.respond("") def do_unlock(self): '''DEPRECATED''' if self.lock: self.lock.release() self.lock = None self.respond("") def do_branches(self): arg, nodes = self.getarg() nodes = map(bin, nodes.split(" ")) r = [] for b in self.repo.branches(nodes): r.append(" ".join(map(hex, b)) + "\n") self.respond("".join(r)) def do_between(self): arg, pairs = self.getarg() pairs = [map(bin, p.split("-")) for p in pairs.split(" ")] r = [] for b in self.repo.between(pairs): r.append(" ".join(map(hex, b)) + "\n") self.respond("".join(r)) def do_changegroup(self): nodes = [] arg, roots = self.getarg() nodes = map(bin, roots.split(" ")) cg = self.repo.changegroup(nodes, 'serve') while True: d = cg.read(4096) if not d: break self.fout.write(d) self.fout.flush() def do_addchangegroup(self): '''DEPRECATED''' if not self.lock: self.respond("not locked") return self.respond("") r = self.repo.addchangegroup(self.fin, 'serve', self.client_url()) self.respond(str(r)) def client_url(self): client = os.environ.get('SSH_CLIENT', '').split(' ', 1)[0] return 'remote:ssh:' + client def do_unbundle(self): their_heads = self.getarg()[1].split() def check_heads(): heads = map(hex, self.repo.heads()) return their_heads == [hex('force')] or their_heads == heads # fail early if possible if not check_heads(): self.respond(_('unsynced changes')) return self.respond('') # write bundle data to temporary file because it can be big try: fd, tempname = tempfile.mkstemp(prefix='hg-unbundle-') fp = os.fdopen(fd, 'wb+') count = int(self.fin.readline()) while count: fp.write(self.fin.read(count)) count = int(self.fin.readline()) was_locked = self.lock is not None if not was_locked: self.lock = self.repo.lock() try: if not check_heads(): # someone else committed/pushed/unbundled while we # were transferring data self.respond(_('unsynced changes')) return self.respond('') # push can proceed fp.seek(0) r = self.repo.addchangegroup(fp, 'serve', self.client_url()) self.respond(str(r)) finally: if not was_locked: self.lock.release() self.lock = None finally: fp.close() os.unlink(tempname) def do_stream_out(self): streamclone.stream_out(self.repo, self.fout)