mercurial/sshpeer.py
author Gregory Szorc <gregory.szorc@gmail.com>
Wed, 18 Oct 2017 22:57:15 +0200
changeset 34885 df2ff314e36f
parent 34257 2844c4bd5a39
child 35108 8b1c887d52e7
permissions -rw-r--r--
fsmonitor: warn when fsmonitor could be used fsmonitor can significantly speed up operations on large working directories. But fsmonitor isn't enabled by default, so naive users may not realize there is a potential to make Mercurial faster. This commit introduces a warning to working directory updates when fsmonitor could be used. The following conditions must be met: * Working directory is previously empty * New working directory adds >= N files (currently 50,000) * Running on Linux or MacOS * fsmonitor not enabled * Warning not disabled via config override Because of the empty working directory restriction, most users will only see this warning during `hg clone` (assuming very few users actually do an `hg up null`). The addition of a warning may be considered a BC change. However, clone has printed warnings before. Until recently, Mercurial printed a warning with the server's certificate fingerprint when it wasn't explicitly trusted for example. The warning goes to stderr. So it shouldn't interfere with scripts parsing meaningful output. The OS restriction was on the advice of Facebook engineers, who only feel confident with watchman's stability on the supported platforms. .. feature:: Print warning when fsmonitor isn't being used on a large repository Differential Revision: https://phab.mercurial-scm.org/D894
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# sshpeer.py - ssh repository proxy class for mercurial
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#
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# Copyright 2005, 2006 Matt Mackall <mpm@selenic.com>
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#
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# This software may be used and distributed according to the terms of the
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# GNU General Public License version 2 or any later version.
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from __future__ import absolute_import
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import re
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from .i18n import _
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from . import (
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    error,
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    pycompat,
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    util,
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    wireproto,
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)
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def _serverquote(s):
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    if not s:
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        return s
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    '''quote a string for the remote shell ... which we assume is sh'''
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    if re.match('[a-zA-Z0-9@%_+=:,./-]*$', s):
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        return s
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    return "'%s'" % s.replace("'", "'\\''")
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def _forwardoutput(ui, pipe):
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    """display all data currently available on pipe as remote output.
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    This is non blocking."""
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    s = util.readpipe(pipe)
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    if s:
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        for l in s.splitlines():
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            ui.status(_("remote: "), l, '\n')
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class doublepipe(object):
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    """Operate a side-channel pipe in addition of a main one
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    The side-channel pipe contains server output to be forwarded to the user
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    input. The double pipe will behave as the "main" pipe, but will ensure the
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    content of the "side" pipe is properly processed while we wait for blocking
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    call on the "main" pipe.
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    If large amounts of data are read from "main", the forward will cease after
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    the first bytes start to appear. This simplifies the implementation
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    without affecting actual output of sshpeer too much as we rarely issue
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    large read for data not yet emitted by the server.
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    The main pipe is expected to be a 'bufferedinputpipe' from the util module
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    that handle all the os specific bits. This class lives in this module
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    because it focus on behavior specific to the ssh protocol."""
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    def __init__(self, ui, main, side):
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        self._ui = ui
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        self._main = main
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        self._side = side
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    def _wait(self):
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        """wait until some data are available on main or side
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        return a pair of boolean (ismainready, issideready)
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        (This will only wait for data if the setup is supported by `util.poll`)
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        """
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        if getattr(self._main, 'hasbuffer', False): # getattr for classic pipe
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            return (True, True) # main has data, assume side is worth poking at.
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        fds = [self._main.fileno(), self._side.fileno()]
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        try:
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            act = util.poll(fds)
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        except NotImplementedError:
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            # non supported yet case, assume all have data.
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            act = fds
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        return (self._main.fileno() in act, self._side.fileno() in act)
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    def write(self, data):
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        return self._call('write', data)
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    def read(self, size):
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        r = self._call('read', size)
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        if size != 0 and not r:
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            # We've observed a condition that indicates the
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            # stdout closed unexpectedly. Check stderr one
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            # more time and snag anything that's there before
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            # letting anyone know the main part of the pipe
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            # closed prematurely.
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            _forwardoutput(self._ui, self._side)
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        return r
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    def readline(self):
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        return self._call('readline')
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    def _call(self, methname, data=None):
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        """call <methname> on "main", forward output of "side" while blocking
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        """
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        # data can be '' or 0
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        if (data is not None and not data) or self._main.closed:
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            _forwardoutput(self._ui, self._side)
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            return ''
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        while True:
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            mainready, sideready = self._wait()
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            if sideready:
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                _forwardoutput(self._ui, self._side)
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            if mainready:
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                meth = getattr(self._main, methname)
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                if data is None:
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                    return meth()
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                else:
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                    return meth(data)
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    def close(self):
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        return self._main.close()
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    def flush(self):
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        return self._main.flush()
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class sshpeer(wireproto.wirepeer):
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    def __init__(self, ui, path, create=False):
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        self._url = path
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        self._ui = ui
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        self._pipeo = self._pipei = self._pipee = None
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   122
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parents: 14004
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   123
        u = util.url(path, parsequery=False, parsefragment=False)
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   124
        if u.scheme != 'ssh' or not u.host or u.path is None:
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            self._abort(error.RepoError(_("couldn't parse location %s") % path))
624
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        util.checksafessh(path)
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   128
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        if u.passwd is not None:
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            self._abort(error.RepoError(_("password in URL not supported")))
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        self._user = u.user
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        self._host = u.host
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        self._port = u.port
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        self._path = u.path or '.'
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   136
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0407a51b9d8c codemod: register core configitems using a script
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        sshcmd = self.ui.config("ui", "ssh")
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        remotecmd = self.ui.config("ui", "remotecmd")
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        args = util.sshargs(sshcmd, self._host, self._user, self._port)
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   141
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        if create:
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            cmd = '%s %s %s' % (sshcmd, args,
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                util.shellquote("%s init %s" %
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                    (_serverquote(remotecmd), _serverquote(self._path))))
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            ui.debug('running %s\n' % cmd)
31197
764f4581d1f3 sshpeer: set a blockedtag when starting ssh
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parents: 29733
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            res = ui.system(cmd, blockedtag='sshpeer')
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            if res != 0:
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   149
                self._abort(error.RepoError(_("could not create remote repo")))
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   150
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        self._validaterepo(sshcmd, args, remotecmd)
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    # Begin of _basepeer interface.
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   155
    @util.propertycache
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   156
    def ui(self):
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        return self._ui
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   158
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109a22f5434a hooks: add url to changegroup, incoming, prechangegroup, pretxnchangegroup hooks
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parents: 2612
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   159
    def url(self):
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   160
        return self._url
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   161
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   162
    def local(self):
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   163
        return None
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   164
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   165
    def peer(self):
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   166
        return self
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   167
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   168
    def canpush(self):
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   169
        return True
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   170
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    def close(self):
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        pass
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   173
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    # End of _basepeer interface.
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   176
    # Begin of _basewirecommands interface.
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   177
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   178
    def capabilities(self):
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   179
        return self._caps
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    # End of _basewirecommands interface.
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   182
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   183
    def _validaterepo(self, sshcmd, args, remotecmd):
3034
2b0bc36a48d8 sshrepo: flush stderr before connecting to the hg server
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   184
        # cleanup up previous run
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   185
        self._cleanup()
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parents: 2859
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   186
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   187
        cmd = '%s %s %s' % (sshcmd, args,
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diff changeset
   188
            util.shellquote("%s -R %s serve --stdio" %
33768
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   189
                (_serverquote(remotecmd), _serverquote(self._path))))
20794
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diff changeset
   190
        self.ui.debug('running %s\n' % cmd)
5292
5a65d870871d sshrepo: fix Windows command quoting
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5190
diff changeset
   191
        cmd = util.quotecommand(cmd)
18759
9baf4330d88f sshpeer: store subprocess so it cleans up correctly
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parents: 17192
diff changeset
   192
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   193
        # while self._subprocess isn't used, having it allows the subprocess to
18759
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diff changeset
   194
        # to clean up correctly later
25408
c88975a4d264 sshpeer: run the ssh command unbuffered
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diff changeset
   195
        #
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   196
        # no buffer allow the use of 'select'
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diff changeset
   197
        # feel free to remove buffering and select usage when we ultimately
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   198
        # move to threading.
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   199
        sub = util.popen4(cmd, bufsize=0)
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   200
        self._pipeo, self._pipei, self._pipee, self._subprocess = sub
646
342927da4f4c Show remote client output with "remote:"
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parents: 644
diff changeset
   201
33768
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diff changeset
   202
        self._pipei = util.bufferedinputpipe(self._pipei)
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diff changeset
   203
        self._pipei = doublepipe(self.ui, self._pipei, self._pipee)
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   204
        self._pipeo = doublepipe(self.ui, self._pipeo, self._pipee)
25407
e461230cc95b sshpeer: use a 'bufferedinputpipe' for standard output of the ssh process
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25244
diff changeset
   205
34145
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diff changeset
   206
        def badresponse():
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   207
            self._abort(error.RepoError(_('no suitable response from '
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   208
                                          'remote hg')))
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diff changeset
   209
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diff changeset
   210
        try:
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diff changeset
   211
            # skip any noise generated by remote shell
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   212
            self._callstream("hello")
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diff changeset
   213
            r = self._callstream("between", pairs=("%s-%s" % ("0"*40, "0"*40)))
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diff changeset
   214
        except IOError:
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diff changeset
   215
            badresponse()
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diff changeset
   216
2420
144280f1578f ssh: gather initial output so we can do capability detection
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diff changeset
   217
        lines = ["", "dummy"]
2046
d14497cbd668 Show remote ssh noise only with --debug and increase the limit to 500 lines.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 2040
diff changeset
   218
        max_noise = 500
2420
144280f1578f ssh: gather initial output so we can do capability detection
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diff changeset
   219
        while lines[-1] and max_noise:
34145
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diff changeset
   220
            try:
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diff changeset
   221
                l = r.readline()
34105
c037fd655b47 ssh: fix flakey ssh errors on BSD systems
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diff changeset
   222
                self._readerr()
34145
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   223
                if lines[-1] == "1\n" and l == "\n":
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diff changeset
   224
                    break
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diff changeset
   225
                if l:
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diff changeset
   226
                    self.ui.debug("remote: ", l)
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   227
                lines.append(l)
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diff changeset
   228
                max_noise -= 1
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diff changeset
   229
            except IOError:
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diff changeset
   230
                badresponse()
2040
cd7711268774 Don't enter an endless loop if remote hg doesn't answer, show remote noise.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 2028
diff changeset
   231
        else:
34145
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diff changeset
   232
            badresponse()
2028
1f1fc418a96c ssh: skip noise generated by remote shell
Matt Mackall <mpm@selenic.com>
parents: 2019
diff changeset
   233
17192
1ac628cd7113 peer: introduce real peer classes
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 16688
diff changeset
   234
        self._caps = set()
8210
344751cd8cb8 replace various uses of list.reverse()
Matt Mackall <mpm@selenic.com>
parents: 8150
diff changeset
   235
        for l in reversed(lines):
2421
a1cfe679192c ssh: add capability detection at startup
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parents: 2420
diff changeset
   236
            if l.startswith("capabilities:"):
17192
1ac628cd7113 peer: introduce real peer classes
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parents: 16688
diff changeset
   237
                self._caps.update(l[:-1].split(":")[1].split())
2421
a1cfe679192c ssh: add capability detection at startup
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parents: 2420
diff changeset
   238
                break
a1cfe679192c ssh: add capability detection at startup
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parents: 2420
diff changeset
   239
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diff changeset
   240
    def _readerr(self):
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diff changeset
   241
        _forwardoutput(self.ui, self._pipee)
624
876333a295ff Add an sshrepository class and hg serve --stdio
Matt Mackall <mpm@selenic.com>
parents: 623
diff changeset
   242
11586
ddaaaa23bb8f protocol: move basic ssh client commands to wirerepository
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parents: 11369
diff changeset
   243
    def _abort(self, exception):
33768
82d564d5ac4f sshpeer: make instance attributes and methods internal
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diff changeset
   244
        self._cleanup()
11586
ddaaaa23bb8f protocol: move basic ssh client commands to wirerepository
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parents: 11369
diff changeset
   245
        raise exception
ddaaaa23bb8f protocol: move basic ssh client commands to wirerepository
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parents: 11369
diff changeset
   246
33768
82d564d5ac4f sshpeer: make instance attributes and methods internal
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diff changeset
   247
    def _cleanup(self):
82d564d5ac4f sshpeer: make instance attributes and methods internal
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parents: 33737
diff changeset
   248
        if self._pipeo is None:
16688
cfb6682961b8 cleanup: replace naked excepts with more specific ones
Brodie Rao <brodie@sf.io>
parents: 16683
diff changeset
   249
            return
33768
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diff changeset
   250
        self._pipeo.close()
82d564d5ac4f sshpeer: make instance attributes and methods internal
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diff changeset
   251
        self._pipei.close()
817
cf1d9a01dd92 Make ssh URL parsing more robust
mpm@selenic.com
parents: 816
diff changeset
   252
        try:
1358
20abfd48e21c Partially revert ssh change so we read all of remote ssh stream
Matt Mackall <mpm@selenic.com>
parents: 1357
diff changeset
   253
            # read the error descriptor until EOF
33768
82d564d5ac4f sshpeer: make instance attributes and methods internal
Gregory Szorc <gregory.szorc@gmail.com>
parents: 33737
diff changeset
   254
            for l in self._pipee:
1402
9d2c2e6b32b5 i18n part2: use '_' for all strings who are part of the user interface
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1400
diff changeset
   255
                self.ui.status(_("remote: "), l)
16688
cfb6682961b8 cleanup: replace naked excepts with more specific ones
Brodie Rao <brodie@sf.io>
parents: 16683
diff changeset
   256
        except (IOError, ValueError):
817
cf1d9a01dd92 Make ssh URL parsing more robust
mpm@selenic.com
parents: 816
diff changeset
   257
            pass
33768
82d564d5ac4f sshpeer: make instance attributes and methods internal
Gregory Szorc <gregory.szorc@gmail.com>
parents: 33737
diff changeset
   258
        self._pipee.close()
624
876333a295ff Add an sshrepository class and hg serve --stdio
Matt Mackall <mpm@selenic.com>
parents: 623
diff changeset
   259
33768
82d564d5ac4f sshpeer: make instance attributes and methods internal
Gregory Szorc <gregory.szorc@gmail.com>
parents: 33737
diff changeset
   260
    __del__ = _cleanup
3034
2b0bc36a48d8 sshrepo: flush stderr before connecting to the hg server
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 2859
diff changeset
   261
28438
48fd02dac1d4 wireproto: make iterbatcher behave streamily over http(s)
Augie Fackler <augie@google.com>
parents: 27798
diff changeset
   262
    def _submitbatch(self, req):
29733
bb04f96df51c wireproto: consolidate code for obtaining "cmds" argument value
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29727
diff changeset
   263
        rsp = self._callstream("batch", cmds=wireproto.encodebatchcmds(req))
28438
48fd02dac1d4 wireproto: make iterbatcher behave streamily over http(s)
Augie Fackler <augie@google.com>
parents: 27798
diff changeset
   264
        available = self._getamount()
48fd02dac1d4 wireproto: make iterbatcher behave streamily over http(s)
Augie Fackler <augie@google.com>
parents: 27798
diff changeset
   265
        # TODO this response parsing is probably suboptimal for large
48fd02dac1d4 wireproto: make iterbatcher behave streamily over http(s)
Augie Fackler <augie@google.com>
parents: 27798
diff changeset
   266
        # batches with large responses.
48fd02dac1d4 wireproto: make iterbatcher behave streamily over http(s)
Augie Fackler <augie@google.com>
parents: 27798
diff changeset
   267
        toread = min(available, 1024)
48fd02dac1d4 wireproto: make iterbatcher behave streamily over http(s)
Augie Fackler <augie@google.com>
parents: 27798
diff changeset
   268
        work = rsp.read(toread)
48fd02dac1d4 wireproto: make iterbatcher behave streamily over http(s)
Augie Fackler <augie@google.com>
parents: 27798
diff changeset
   269
        available -= toread
48fd02dac1d4 wireproto: make iterbatcher behave streamily over http(s)
Augie Fackler <augie@google.com>
parents: 27798
diff changeset
   270
        chunk = work
48fd02dac1d4 wireproto: make iterbatcher behave streamily over http(s)
Augie Fackler <augie@google.com>
parents: 27798
diff changeset
   271
        while chunk:
48fd02dac1d4 wireproto: make iterbatcher behave streamily over http(s)
Augie Fackler <augie@google.com>
parents: 27798
diff changeset
   272
            while ';' in work:
48fd02dac1d4 wireproto: make iterbatcher behave streamily over http(s)
Augie Fackler <augie@google.com>
parents: 27798
diff changeset
   273
                one, work = work.split(';', 1)
48fd02dac1d4 wireproto: make iterbatcher behave streamily over http(s)
Augie Fackler <augie@google.com>
parents: 27798
diff changeset
   274
                yield wireproto.unescapearg(one)
48fd02dac1d4 wireproto: make iterbatcher behave streamily over http(s)
Augie Fackler <augie@google.com>
parents: 27798
diff changeset
   275
            toread = min(available, 1024)
48fd02dac1d4 wireproto: make iterbatcher behave streamily over http(s)
Augie Fackler <augie@google.com>
parents: 27798
diff changeset
   276
            chunk = rsp.read(toread)
48fd02dac1d4 wireproto: make iterbatcher behave streamily over http(s)
Augie Fackler <augie@google.com>
parents: 27798
diff changeset
   277
            available -= toread
48fd02dac1d4 wireproto: make iterbatcher behave streamily over http(s)
Augie Fackler <augie@google.com>
parents: 27798
diff changeset
   278
            work += chunk
48fd02dac1d4 wireproto: make iterbatcher behave streamily over http(s)
Augie Fackler <augie@google.com>
parents: 27798
diff changeset
   279
        yield wireproto.unescapearg(work)
48fd02dac1d4 wireproto: make iterbatcher behave streamily over http(s)
Augie Fackler <augie@google.com>
parents: 27798
diff changeset
   280
11589
e8d22fe2ddab protocol: clean up call-like functions in http and ssh clients
Matt Mackall <mpm@selenic.com>
parents: 11588
diff changeset
   281
    def _callstream(self, cmd, **args):
33100
05906b8e1d23 py3: use pycompat.byteskwargs() to convert kwargs' keys to bytes
Pulkit Goyal <7895pulkit@gmail.com>
parents: 32062
diff changeset
   282
        args = pycompat.byteskwargs(args)
9467
4c041f1ee1b4 do not attempt to translate ui.debug output
Martin Geisler <mg@lazybytes.net>
parents: 8563
diff changeset
   283
        self.ui.debug("sending %s command\n" % cmd)
33768
82d564d5ac4f sshpeer: make instance attributes and methods internal
Gregory Szorc <gregory.szorc@gmail.com>
parents: 33737
diff changeset
   284
        self._pipeo.write("%s\n" % cmd)
13721
3458c15ab2f0 wireproto: fix handling of '*' args for HTTP and SSH
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13464
diff changeset
   285
        _func, names = wireproto.commands[cmd]
3458c15ab2f0 wireproto: fix handling of '*' args for HTTP and SSH
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13464
diff changeset
   286
        keys = names.split()
3458c15ab2f0 wireproto: fix handling of '*' args for HTTP and SSH
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13464
diff changeset
   287
        wireargs = {}
3458c15ab2f0 wireproto: fix handling of '*' args for HTTP and SSH
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13464
diff changeset
   288
        for k in keys:
3458c15ab2f0 wireproto: fix handling of '*' args for HTTP and SSH
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13464
diff changeset
   289
            if k == '*':
3458c15ab2f0 wireproto: fix handling of '*' args for HTTP and SSH
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13464
diff changeset
   290
                wireargs['*'] = args
3458c15ab2f0 wireproto: fix handling of '*' args for HTTP and SSH
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13464
diff changeset
   291
                break
3458c15ab2f0 wireproto: fix handling of '*' args for HTTP and SSH
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13464
diff changeset
   292
            else:
3458c15ab2f0 wireproto: fix handling of '*' args for HTTP and SSH
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13464
diff changeset
   293
                wireargs[k] = args[k]
3458c15ab2f0 wireproto: fix handling of '*' args for HTTP and SSH
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13464
diff changeset
   294
                del args[k]
3458c15ab2f0 wireproto: fix handling of '*' args for HTTP and SSH
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13464
diff changeset
   295
        for k, v in sorted(wireargs.iteritems()):
33768
82d564d5ac4f sshpeer: make instance attributes and methods internal
Gregory Szorc <gregory.szorc@gmail.com>
parents: 33737
diff changeset
   296
            self._pipeo.write("%s %d\n" % (k, len(v)))
13721
3458c15ab2f0 wireproto: fix handling of '*' args for HTTP and SSH
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13464
diff changeset
   297
            if isinstance(v, dict):
3458c15ab2f0 wireproto: fix handling of '*' args for HTTP and SSH
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13464
diff changeset
   298
                for dk, dv in v.iteritems():
33768
82d564d5ac4f sshpeer: make instance attributes and methods internal
Gregory Szorc <gregory.szorc@gmail.com>
parents: 33737
diff changeset
   299
                    self._pipeo.write("%s %d\n" % (dk, len(dv)))
82d564d5ac4f sshpeer: make instance attributes and methods internal
Gregory Szorc <gregory.szorc@gmail.com>
parents: 33737
diff changeset
   300
                    self._pipeo.write(dv)
13721
3458c15ab2f0 wireproto: fix handling of '*' args for HTTP and SSH
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13464
diff changeset
   301
            else:
33768
82d564d5ac4f sshpeer: make instance attributes and methods internal
Gregory Szorc <gregory.szorc@gmail.com>
parents: 33737
diff changeset
   302
                self._pipeo.write(v)
82d564d5ac4f sshpeer: make instance attributes and methods internal
Gregory Szorc <gregory.szorc@gmail.com>
parents: 33737
diff changeset
   303
        self._pipeo.flush()
624
876333a295ff Add an sshrepository class and hg serve --stdio
Matt Mackall <mpm@selenic.com>
parents: 623
diff changeset
   304
33768
82d564d5ac4f sshpeer: make instance attributes and methods internal
Gregory Szorc <gregory.szorc@gmail.com>
parents: 33737
diff changeset
   305
        return self._pipei
624
876333a295ff Add an sshrepository class and hg serve --stdio
Matt Mackall <mpm@selenic.com>
parents: 623
diff changeset
   306
20905
167047ba3cfa wireproto: drop the _decompress method in favor a new call type
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20794
diff changeset
   307
    def _callcompressable(self, cmd, **args):
167047ba3cfa wireproto: drop the _decompress method in favor a new call type
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20794
diff changeset
   308
        return self._callstream(cmd, **args)
167047ba3cfa wireproto: drop the _decompress method in favor a new call type
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20794
diff changeset
   309
11589
e8d22fe2ddab protocol: clean up call-like functions in http and ssh clients
Matt Mackall <mpm@selenic.com>
parents: 11588
diff changeset
   310
    def _call(self, cmd, **args):
e8d22fe2ddab protocol: clean up call-like functions in http and ssh clients
Matt Mackall <mpm@selenic.com>
parents: 11588
diff changeset
   311
        self._callstream(cmd, **args)
5978
7939c71f3132 sshrepo: be more careful while reading data
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5293
diff changeset
   312
        return self._recv()
7939c71f3132 sshrepo: be more careful while reading data
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5293
diff changeset
   313
11592
26e0782b8380 protocol: unify client unbundle support
Matt Mackall <mpm@selenic.com>
parents: 11591
diff changeset
   314
    def _callpush(self, cmd, fp, **args):
26e0782b8380 protocol: unify client unbundle support
Matt Mackall <mpm@selenic.com>
parents: 11591
diff changeset
   315
        r = self._call(cmd, **args)
26e0782b8380 protocol: unify client unbundle support
Matt Mackall <mpm@selenic.com>
parents: 11591
diff changeset
   316
        if r:
26e0782b8380 protocol: unify client unbundle support
Matt Mackall <mpm@selenic.com>
parents: 11591
diff changeset
   317
            return '', r
29727
0dbd788a2dfd sshpeer: use `iter(callable, sentinel)` instead of while True
Augie Fackler <augie@google.com>
parents: 29389
diff changeset
   318
        for d in iter(lambda: fp.read(4096), ''):
11592
26e0782b8380 protocol: unify client unbundle support
Matt Mackall <mpm@selenic.com>
parents: 11591
diff changeset
   319
            self._send(d)
26e0782b8380 protocol: unify client unbundle support
Matt Mackall <mpm@selenic.com>
parents: 11591
diff changeset
   320
        self._send("", flush=True)
26e0782b8380 protocol: unify client unbundle support
Matt Mackall <mpm@selenic.com>
parents: 11591
diff changeset
   321
        r = self._recv()
26e0782b8380 protocol: unify client unbundle support
Matt Mackall <mpm@selenic.com>
parents: 11591
diff changeset
   322
        if r:
26e0782b8380 protocol: unify client unbundle support
Matt Mackall <mpm@selenic.com>
parents: 11591
diff changeset
   323
            return '', r
26e0782b8380 protocol: unify client unbundle support
Matt Mackall <mpm@selenic.com>
parents: 11591
diff changeset
   324
        return self._recv(), ''
26e0782b8380 protocol: unify client unbundle support
Matt Mackall <mpm@selenic.com>
parents: 11591
diff changeset
   325
21073
83ce71ef7804 sshpeer: add implementation of _calltwowaystream
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20905
diff changeset
   326
    def _calltwowaystream(self, cmd, fp, **args):
83ce71ef7804 sshpeer: add implementation of _calltwowaystream
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20905
diff changeset
   327
        r = self._call(cmd, **args)
83ce71ef7804 sshpeer: add implementation of _calltwowaystream
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20905
diff changeset
   328
        if r:
83ce71ef7804 sshpeer: add implementation of _calltwowaystream
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20905
diff changeset
   329
            # XXX needs to be made better
29389
98e8313dcd9e i18n: translate abort messages
liscju <piotr.listkiewicz@gmail.com>
parents: 28438
diff changeset
   330
            raise error.Abort(_('unexpected remote reply: %s') % r)
29727
0dbd788a2dfd sshpeer: use `iter(callable, sentinel)` instead of while True
Augie Fackler <augie@google.com>
parents: 29389
diff changeset
   331
        for d in iter(lambda: fp.read(4096), ''):
21073
83ce71ef7804 sshpeer: add implementation of _calltwowaystream
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20905
diff changeset
   332
            self._send(d)
83ce71ef7804 sshpeer: add implementation of _calltwowaystream
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20905
diff changeset
   333
        self._send("", flush=True)
33768
82d564d5ac4f sshpeer: make instance attributes and methods internal
Gregory Szorc <gregory.szorc@gmail.com>
parents: 33737
diff changeset
   334
        return self._pipei
11591
0d9cb3f3b0a1 protocol: unify client changegroup methods
Matt Mackall <mpm@selenic.com>
parents: 11590
diff changeset
   335
28438
48fd02dac1d4 wireproto: make iterbatcher behave streamily over http(s)
Augie Fackler <augie@google.com>
parents: 27798
diff changeset
   336
    def _getamount(self):
33768
82d564d5ac4f sshpeer: make instance attributes and methods internal
Gregory Szorc <gregory.szorc@gmail.com>
parents: 33737
diff changeset
   337
        l = self._pipei.readline()
15017
f4522df38c65 wireproto: add out-of-band error class to allow remote repo to report errors
Andrew Pritchard <andrewp@fogcreek.com>
parents: 14537
diff changeset
   338
        if l == '\n':
33768
82d564d5ac4f sshpeer: make instance attributes and methods internal
Gregory Szorc <gregory.szorc@gmail.com>
parents: 33737
diff changeset
   339
            self._readerr()
25243
d65243d28749 sshpeer: break "OutOfBandError" feature for ssh (BC)
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23684
diff changeset
   340
            msg = _('check previous remote output')
d65243d28749 sshpeer: break "OutOfBandError" feature for ssh (BC)
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23684
diff changeset
   341
            self._abort(error.OutOfBandError(hint=msg))
33768
82d564d5ac4f sshpeer: make instance attributes and methods internal
Gregory Szorc <gregory.szorc@gmail.com>
parents: 33737
diff changeset
   342
        self._readerr()
646
342927da4f4c Show remote client output with "remote:"
Matt Mackall <mpm@selenic.com>
parents: 644
diff changeset
   343
        try:
28438
48fd02dac1d4 wireproto: make iterbatcher behave streamily over http(s)
Augie Fackler <augie@google.com>
parents: 27798
diff changeset
   344
            return int(l)
14004
97ed99d1f419 eliminate various naked except clauses
Idan Kamara <idankk86@gmail.com>
parents: 13827
diff changeset
   345
        except ValueError:
11590
0b15aee0a306 protocol: convert some ssh abort calls
Matt Mackall <mpm@selenic.com>
parents: 11589
diff changeset
   346
            self._abort(error.ResponseError(_("unexpected response:"), l))
28438
48fd02dac1d4 wireproto: make iterbatcher behave streamily over http(s)
Augie Fackler <augie@google.com>
parents: 27798
diff changeset
   347
48fd02dac1d4 wireproto: make iterbatcher behave streamily over http(s)
Augie Fackler <augie@google.com>
parents: 27798
diff changeset
   348
    def _recv(self):
33768
82d564d5ac4f sshpeer: make instance attributes and methods internal
Gregory Szorc <gregory.szorc@gmail.com>
parents: 33737
diff changeset
   349
        return self._pipei.read(self._getamount())
5978
7939c71f3132 sshrepo: be more careful while reading data
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5293
diff changeset
   350
7939c71f3132 sshrepo: be more careful while reading data
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5293
diff changeset
   351
    def _send(self, data, flush=False):
33768
82d564d5ac4f sshpeer: make instance attributes and methods internal
Gregory Szorc <gregory.szorc@gmail.com>
parents: 33737
diff changeset
   352
        self._pipeo.write("%d\n" % len(data))
5978
7939c71f3132 sshrepo: be more careful while reading data
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5293
diff changeset
   353
        if data:
33768
82d564d5ac4f sshpeer: make instance attributes and methods internal
Gregory Szorc <gregory.szorc@gmail.com>
parents: 33737
diff changeset
   354
            self._pipeo.write(data)
5978
7939c71f3132 sshrepo: be more careful while reading data
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5293
diff changeset
   355
        if flush:
33768
82d564d5ac4f sshpeer: make instance attributes and methods internal
Gregory Szorc <gregory.szorc@gmail.com>
parents: 33737
diff changeset
   356
            self._pipeo.flush()
82d564d5ac4f sshpeer: make instance attributes and methods internal
Gregory Szorc <gregory.szorc@gmail.com>
parents: 33737
diff changeset
   357
        self._readerr()
2612
ffb895f16925 add support for streaming clone.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2549
diff changeset
   358
17192
1ac628cd7113 peer: introduce real peer classes
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 16688
diff changeset
   359
instance = sshpeer