view mercurial/sshrepo.py @ 9485:7d6ac5d7917c

test-gendoc: add tests for all languages

This ensures that we catch errors in the reST syntax early and for all
languages. The only change needed in gendoc.py was to correct the
computation of section underlines for Asian languages.

# sshrepo.py - ssh repository proxy class for mercurial
#
# Copyright 2005, 2006 Matt Mackall <[e-mail]>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2, incorporated herein by reference.

from node import bin, hex
from i18n import _
import repo, util, error
import re, urllib

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(repo.repository):
    def __init__(self, ui, path, create=0):
        self._url = path
        self.ui = ui

        m = re.match(r'^ssh://(([^@]+)@)?([^:/]+)(:(\d+))?(/(.*))?$', path)
        if not m:
            self.abort(error.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 "."

        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.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:
            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
            l = self.pipee.readline()
            if not l: break
            self.ui.status(_("remote: "), l)

    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 do_cmd(self, cmd, **args):
        self.ui.debug("sending %s command\n" % cmd)
        self.pipeo.write("%s\n" % cmd)
        for k, v in args.iteritems():
            self.pipeo.write("%s %d\n" % (k, len(v)))
            self.pipeo.write(v)
        self.pipeo.flush()

        return self.pipei

    def call(self, cmd, **args):
        self.do_cmd(cmd, **args)
        return self._recv()

    def _recv(self):
        l = self.pipei.readline()
        self.readerr()
        try:
            l = int(l)
        except:
            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 lookup(self, key):
        self.requirecap('lookup', _('look up remote revision'))
        d = self.call("lookup", key=key)
        success, data = d[:-1].split(" ", 1)
        if int(success):
            return bin(data)
        else:
            self.abort(error.RepoError(data))

    def heads(self):
        d = self.call("heads")
        try:
            return map(bin, d[:-1].split(" "))
        except:
            self.abort(error.ResponseError(_("unexpected response:"), d))

    def branchmap(self):
        d = self.call("branchmap")
        try:
            branchmap = {}
            for branchpart in d.splitlines():
                branchheads = branchpart.split(' ')
                branchname = urllib.unquote(branchheads[0])
                branchheads = [bin(x) for x in branchheads[1:]]
                branchmap[branchname] = branchheads
            return branchmap
        except:
            raise error.ResponseError(_("unexpected response:"), d)

    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:
            self.abort(error.ResponseError(_("unexpected response:"), d))

    def between(self, pairs):
        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:
            self.abort(error.ResponseError(_("unexpected response:"), d))

    def changegroup(self, nodes, kind):
        n = " ".join(map(hex, nodes))
        return self.do_cmd("changegroup", roots=n)

    def changegroupsubset(self, bases, heads, kind):
        self.requirecap('changegroupsubset', _('look up remote changes'))
        bases = " ".join(map(hex, bases))
        heads = " ".join(map(hex, heads))
        return self.do_cmd("changegroupsubset", bases=bases, heads=heads)

    def unbundle(self, cg, heads, source):
        d = self.call("unbundle", heads=' '.join(map(hex, heads)))
        if d:
            # remote may send "unsynced changes"
            self.abort(error.RepoError(_("push refused: %s") % d))

        while 1:
            d = cg.read(4096)
            if not d:
                break
            self._send(d)

        self._send("", flush=True)

        r = self._recv()
        if r:
            # remote may send "unsynced changes"
            self.abort(error.RepoError(_("push failed: %s") % r))

        r = self._recv()
        try:
            return int(r)
        except:
            self.abort(error.ResponseError(_("unexpected response:"), r))

    def addchangegroup(self, cg, source, url):
        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:
            self.abort(error.ResponseError(_("unexpected response:"), r))

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

instance = sshrepository