comparison mercurial/sshpeer.py @ 50440:3a2df812e1c7

pull: add --remote-hidden option and pass it through peer creation

This option will allow to pull changesets that are hidden on the remote. This
is useful when looking into a changeset’s evolution history, resolving
evolution instability or mirroring a repository.

The option is best effort and will only affect the pull when it can. The option
will be ignored when it cannot be honored.

Support for each type of peer is yet to be implemented. They currently all warn
about lack of support. The warning code will get removed as peers gain
support for this option.

The option is still experimental, so we will have freedom to update the UI or
implementation before it graduates out of experimental.

Based on a changeset by Pierre-Yves David, which added the option.

50439:4077d6222cf1

    return protoname, caps


class sshv1peer(wireprotov1peer.wirepeer):
    def __init__(
        self, ui, path, proc, stdin, stdout, stderr, caps, autoreadstderr=True
    ):
        """Create a peer from an existing SSH connection.

        ``proc`` is a handle on the underlying SSH process.
        ``stdin``, ``stdout``, and ``stderr`` are handles on the stdio
        pipes for that process.
        ``caps`` is a set of capabilities supported by the remote.
        ``autoreadstderr`` denotes whether to automatically read from
        stderr and to forward its output.
        """
        super().__init__(ui, path=path)
        # self._subprocess is unused. Keeping a handle on the process
        # holds a reference and prevents it from being garbage collected.
        self._subprocess = proc

        # And we hook up our "doublepipe" wrapper to allow querying

            self._pipeo.flush()
        if self._autoreadstderr:
            self._readerr()


def _make_peer(ui, path, proc, stdin, stdout, stderr, autoreadstderr=True):
    """Make a peer instance from existing pipes.

    ``path`` and ``proc`` are stored on the eventual peer instance and may
    not be used for anything meaningful.

            stdin,
            stdout,
            stderr,
            caps,
            autoreadstderr=autoreadstderr,
        )
    else:
        _cleanuppipes(ui, stdout, stdin, stderr, warn=None)
        raise error.RepoError(
            _(b'unknown version of SSH protocol: %s') % protoname
        )


def make_peer(ui, path, create, intents=None, createopts=None):
    """Create an SSH peer.

    The returned object conforms to the ``wireprotov1peer.wirepeer`` interface.
    """
    u = urlutil.url(path.loc, parsequery=False, parsefragment=False)

    proc, stdin, stdout, stderr = _makeconnection(
        ui, sshcmd, args, remotecmd, remotepath, sshenv
    )

    peer = _make_peer(ui, path, proc, stdin, stdout, stderr)

    # Finally, if supported by the server, notify it about our own
    # capabilities.
    if b'protocaps' in peer.capabilities():
        try:

50440:3a2df812e1c7

    return protoname, caps


class sshv1peer(wireprotov1peer.wirepeer):
    def __init__(
        self,
        ui,
        path,
        proc,
        stdin,
        stdout,
        stderr,
        caps,
        autoreadstderr=True,
        remotehidden=False,
    ):
        """Create a peer from an existing SSH connection.

        ``proc`` is a handle on the underlying SSH process.
        ``stdin``, ``stdout``, and ``stderr`` are handles on the stdio
        pipes for that process.
        ``caps`` is a set of capabilities supported by the remote.
        ``autoreadstderr`` denotes whether to automatically read from
        stderr and to forward its output.
        """
        super().__init__(ui, path=path, remotehidden=remotehidden)
        if remotehidden:
            msg = _(
                b"ignoring `--remote-hidden` request\n"
                b"(access to hidden changeset for ssh peers not supported "
                b"yet)\n"
            )
            ui.warn(msg)
        # self._subprocess is unused. Keeping a handle on the process
        # holds a reference and prevents it from being garbage collected.
        self._subprocess = proc

        # And we hook up our "doublepipe" wrapper to allow querying

            self._pipeo.flush()
        if self._autoreadstderr:
            self._readerr()


def _make_peer(
    ui,
    path,
    proc,
    stdin,
    stdout,
    stderr,
    autoreadstderr=True,
    remotehidden=False,
):
    """Make a peer instance from existing pipes.

    ``path`` and ``proc`` are stored on the eventual peer instance and may
    not be used for anything meaningful.

            stdin,
            stdout,
            stderr,
            caps,
            autoreadstderr=autoreadstderr,
            remotehidden=remotehidden,
        )
    else:
        _cleanuppipes(ui, stdout, stdin, stderr, warn=None)
        raise error.RepoError(
            _(b'unknown version of SSH protocol: %s') % protoname
        )


def make_peer(
    ui, path, create, intents=None, createopts=None, remotehidden=False
):
    """Create an SSH peer.

    The returned object conforms to the ``wireprotov1peer.wirepeer`` interface.
    """
    u = urlutil.url(path.loc, parsequery=False, parsefragment=False)

    proc, stdin, stdout, stderr = _makeconnection(
        ui, sshcmd, args, remotecmd, remotepath, sshenv
    )

    peer = _make_peer(
        ui, path, proc, stdin, stdout, stderr, remotehidden=remotehidden
    )

    # Finally, if supported by the server, notify it about our own
    # capabilities.
    if b'protocaps' in peer.capabilities():
        try: