/b-gtk/fix-viz

# Copyright (C) 2006 by Szilveszter Farkas (Phanatic) <szilveszter.farkas@gmail.com>

# Copyright (C) 2007 by Jelmer Vernooij <jelmer@samba.org>

#

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 2 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

try:

    import pygtk

    pygtk.require("2.0")

except:

    pass

import gtk

from errors import show_bzr_error

import bzrlib.errors as errors

from bzrlib.plugins.gtk.dialog import (

    info_dialog,

    question_dialog,

    )

from bzrlib.plugins.gtk.history import UrlHistory

from bzrlib.plugins.gtk.i18n import _i18n

class PushDialog(gtk.Dialog):

    """New implementation of the Push dialog."""

    def __init__(self, repository, revid, branch=None, parent=None):

        """Initialize the Push dialog. """

        gtk.Dialog.__init__(self, title="Push",

                                  parent=parent,

                                  flags=0,

                                  buttons=(gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL))

        # Get arguments

        self.repository = repository

        self.revid = revid

        self.branch = branch

        # Create the widgets

        self._label_location = gtk.Label(_i18n("Location:"))

        self._combo = gtk.ComboBoxEntry()

        self._button_push = gtk.Button(_i18n("_Push"), use_underline=True)

        self._hbox_location = gtk.HBox()

        # Set callbacks

        self._button_push.connect('clicked', self._on_push_clicked)

        # Set properties

        self._label_location.set_alignment(0, 0.5)

        self._hbox_location.set_spacing(3)

        self.vbox.set_spacing(3)

        # Pack widgets

        self._hbox_location.pack_start(self._label_location, False, False)

        self._hbox_location.pack_start(self._combo, True, True)

        self.vbox.pack_start(self._hbox_location)

        self.action_area.pack_end(self._button_push)

        # Show the dialog

        self.vbox.show_all()

        # Build location history

        self._history = UrlHistory(self.branch.get_config(), 'push_history')

        self._build_history()

    def _build_history(self):

        """Build up the location history. """

        self._combo_model = gtk.ListStore(str)

        for item in self._history.get_entries():

            self._combo_model.append([ item ])

        self._combo.set_model(self._combo_model)

        self._combo.set_text_column(0)

        if self.branch is not None:

            location = self.branch.get_push_location()

            if location is not None:

                self._combo.get_child().set_text(location)

    @show_bzr_error

    def _on_push_clicked(self, widget):

        """Push button clicked handler. """

        location = self._combo.get_child().get_text()

        revs = 0

        try:

            revs = do_push(self.branch, location=location, overwrite=False)

        except errors.DivergedBranches:

            response = question_dialog(_i18n('Branches have been diverged'),

                                       _i18n('You cannot push if branches have diverged.\nOverwrite?'))

            if response == gtk.RESPONSE_YES:

                revs = do_push(self.branch, location=location, overwrite=True)

        if self.branch is not None and self.branch.get_push_location() is None:

            self.branch.set_push_location(location)

        self._history.add_entry(location)

        info_dialog(_i18n('Push successful'),

                    _i18n("%d revision(s) pushed.") % revs)

        self.response(gtk.RESPONSE_OK)

def do_push(br_from, location, overwrite):

    """Update a mirror of a branch.

    :param br_from: the source branch

    :param location: the location of the branch that you'd like to update

    :param overwrite: overwrite target location if it diverged

    :return: number of revisions pushed

    """

    from bzrlib.bzrdir import BzrDir

    from bzrlib.transport import get_transport

    transport = get_transport(location)

    location_url = transport.base

    old_rh = []

    try:

        dir_to = BzrDir.open(location_url)

        br_to = dir_to.open_branch()

    except errors.NotBranchError:

        # create a branch.

        transport = transport.clone('..')

        try:

            relurl = transport.relpath(location_url)

            transport.mkdir(relurl)

        except errors.NoSuchFile:

            response = question_dialog(_i18n('Non existing parent directory'),

                         _i18n("The parent directory (%s)\ndoesn't exist. Create?") % location)

            if response == gtk.RESPONSE_OK:

                transport.create_prefix()

            else:

                return

        dir_to = br_from.bzrdir.clone(location_url,

            revision_id=br_from.last_revision())

        br_to = dir_to.open_branch()

        count = len(br_to.revision_history())

    else:

        old_rh = br_to.revision_history()

        try:

            tree_to = dir_to.open_workingtree()

        except errors.NotLocalUrl:

            # FIXME - what to do here? how should we warn the user?

            count = br_to.pull(br_from, overwrite)

        except errors.NoWorkingTree:

            count = br_to.pull(br_from, overwrite)

        else:

            count = tree_to.pull(br_from, overwrite)

    return count