Mercurial > hg
view mercurial/sshserver.py @ 2489:568e58eed096
Add revlog.parentrevs function.
This allows one to walk the revision graph using only revision numbers,
which can be faster than using revision hashes, especially for
RevlogNG, where the parents of a revision are stored as revision
numbers.
author | Alexis S. L. Carvalho <alexis@cecm.usp.br> |
---|---|
date | Tue, 20 Jun 2006 14:57:30 -0300 |
parents | e8c4f3d3df8c |
children | ffb895f16925 |
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# sshserver.py - ssh protocol server support 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 demandload import demandload from i18n import gettext as _ from node import * demandload(globals(), "os 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 ''' r = "capabilities: unbundle\n" self.respond(r) 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.respond(str(r)) 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.respond(str(r)) finally: if not was_locked: self.lock.release() self.lock = None finally: fp.close() os.unlink(tempname)