mercurial/sshrepo.py
author Vadim Gelfer <vadim.gelfer@gmail.com>
Thu, 27 Jul 2006 15:19:58 -0700
changeset 2708 084f07cacba0
parent 2673 109a22f5434a
child 2740 386f04d6ecb3
permissions -rw-r--r--
patchbomb: add content-disposition to make display inline and add filename if rev being emailed has tag that ends in .patch or .diff then use that as filename. else make up filename from name of repo.

# 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 util")

class sshrepository(remoterepository):
    def __init__(self, ui, path, create=0):
        self._url = path
        self.ui = ui

        m = re.match(r'ssh://(([^@]+)@)?([^:/]+)(:(\d+))?(/(.*))?', path)
        if not m:
            raise hg.RepoError(_("couldn't parse location %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")

        if create:
            try:
                self.validate_repo(ui, sshcmd, args, remotecmd)
                return # the repo is good, nothing more to do
            except hg.RepoError:
                pass

            cmd = '%s %s "%s init %s"'
            cmd = cmd % (sshcmd, args, remotecmd, self.path)

            ui.note('running %s\n' % cmd)
            res = os.system(cmd)
            if res != 0:
                raise hg.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):
        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')

        # skip any noise generated by remote shell
        self.do_cmd("hello")
        r = self.do_cmd("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:
            raise hg.RepoError(_("no response from remote hg"))

        self.capabilities = ()
        lines.reverse()
        for l in lines:
            if l.startswith("capabilities:"):
                self.capabilities = l[:-1].split(":")[1].split()
                break

    def readerr(self):
        while 1:
            size = util.fstat(self.pipee).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 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, kind):
        n = " ".join(map(hex, nodes))
        return self.do_cmd("changegroup", roots=n)

    def unbundle(self, cg, heads, source):
        d = self.call("unbundle", heads=' '.join(map(hex, heads)))
        if d:
            raise hg.RepoError(_("push refused: %s") % d)

        while 1:
            d = cg.read(4096)
            if not d: break
            self.pipeo.write(str(len(d)) + '\n')
            self.pipeo.write(d)
            self.readerr()

        self.pipeo.write('0\n')
        self.pipeo.flush()

        self.readerr()
        d = self.pipei.readline()
        if d != '\n':
            return 1

        l = int(self.pipei.readline())
        r = self.pipei.read(l)
        if not r:
            return 1
        return int(r)

    def addchangegroup(self, cg, source, url):
        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())
        r = self.pipei.read(l)
        if not r:
            return 1
        return int(r)

    def stream_out(self):
        return self.do_cmd('stream_out')