/b-gtk/fix-viz

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

#

# 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

import gobject

import pango

import os.path

import re

from bzrlib import errors, osutils

from bzrlib.trace import mutter

from dialog import error_dialog, question_dialog

from errors import show_bzr_error

try:

    import dbus

    import dbus.glib

    have_dbus = True

except ImportError:

    have_dbus = False

def pending_revisions(wt):

    """Return a list of pending merges or None if there are none of them.

    Arguably this should be a core function, and

    ``bzrlib.status.show_pending_merges`` should be built on top of it.

    :return: [(rev, [children])]

    """

    parents = wt.get_parent_ids()

    if len(parents) < 2:

        return None

    # The basic pending merge algorithm uses the same algorithm as

    # bzrlib.status.show_pending_merges

    pending = parents[1:]

    branch = wt.branch

    last_revision = parents[0]

    if last_revision is not None:

        try:

            ignore = set(branch.repository.get_ancestry(last_revision,

                                                        topo_sorted=False))

        except errors.NoSuchRevision:

            # the last revision is a ghost : assume everything is new

            # except for it

            ignore = set([None, last_revision])

    else:

        ignore = set([None])

    pm = []

    for merge in pending:

        ignore.add(merge)

        try:

            rev = branch.repository.get_revision(merge)

            children = []

            pm.append((rev, children))

            # This does need to be topo sorted, so we search backwards

            inner_merges = branch.repository.get_ancestry(merge)

            assert inner_merges[0] is None

            inner_merges.pop(0)

            for mmerge in reversed(inner_merges):

                if mmerge in ignore:

                    continue

                rev = branch.repository.get_revision(mmerge)

                children.append(rev)

                ignore.add(mmerge)

        except errors.NoSuchRevision:

            print "DEBUG: NoSuchRevision:", merge

    return pm

class CommitDialog(gtk.Dialog):

    """Implementation of Commit."""

    def __init__(self, wt, selected=None, parent=None):

        gtk.Dialog.__init__(self, title="Commit - Olive",

                                  parent=parent,

                                  flags=0,

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

        self._wt = wt

        self._selected = selected

        self.setup_params()

        self.construct()

        self.fill_in_data()

    def setup_params(self):

        """Setup the member variables for state."""

        self._basis_tree = self._wt.basis_tree()

        self._delta = None

        self._pending = pending_revisions(self._wt)

        self._is_checkout = (self._wt.branch.get_bound_location() is not None)

    def fill_in_data(self):

        # Now that we are built, handle changes to the view based on the state

        self._fill_in_pending()

        self._fill_in_diff()

        self._fill_in_files()

    def _fill_in_pending(self):

        if not self._pending:

            self._pending_box.hide()

            return

        # TODO: We'd really prefer this to be a nested list

        for rev, children in self._pending:

            rev_info = self._rev_to_pending_info(rev)

            self._pending_store.append([

                rev_info['revision_id'],

                rev_info['date'],

                rev_info['committer'],

                rev_info['summary'],

                ])

            for child in children:

                rev_info = self._rev_to_pending_info(child)

                self._pending_store.append([

                    rev_info['revision_id'],

                    rev_info['date'],

                    rev_info['committer'],

                    rev_info['summary'],

                    ])

        self._pending_box.show()

    def _fill_in_files(self):

        # We should really use _iter_changes, and then add a progress bar of

        # some kind.

        # While we fill in the view, hide the store

        store = self._files_store

        self._treeview_files.set_model(None)

        added = _('added')

        removed = _('removed')

        renamed = _('renamed')

        renamed_and_modified = _('renamed and modified')

        modified = _('modified')

        kind_changed = _('kind changed')

        # The store holds:

        # [file_id, real path, checkbox, display path, changes type]

        # _iter_changes returns:

        # (file_id, (path_in_source, path_in_target),

        #  changed_content, versioned, parent, name, kind,

        #  executable)

        # The first entry is always the 'whole tree'

        store.append([None, None, True, 'All Files', ''])

        # should we pass specific_files?

        self._wt.lock_read()

        self._basis_tree.lock_read()

        try:

            for (file_id, paths, changed_content, versioned, parent_ids, names,

                 kinds, executables) in self._wt._iter_changes(self._basis_tree):

                # Skip the root entry.

                if parent_ids == (None, None):

                    continue

                change_type = None

                if kinds[0] is None:

                    source_marker = ''

                else:

                    source_marker = osutils.kind_marker(kinds[0])

                if kinds[1] is None:

                    assert kinds[0] is not None

                    marker = osutils.kind_marker(kinds[0])

                else:

                    marker = osutils.kind_marker(kinds[1])

                real_path = paths[1]

                if real_path is None:

                    real_path = paths[0]

                assert real_path is not None

                display_path = real_path + marker

                present_source = versioned[0] and kinds[0] is not None

                present_target = versioned[1] and kinds[1] is not None

                if present_source != present_target:

                    if present_target:

                        change_type = added

                    else:

                        change_type = removed

                elif names[0] != names[1] or parent_ids[0] != parent_ids[1]:

                    # Renamed

                    if changed_content or executables[0] != executables[1]:

                        # and modified

                        change_type = renamed_and_modified

                    else:

                        change_type = renamed

                    display_path = (paths[0] + source_marker

                                    + ' => ' + paths[1] + marker)

                elif kinds[0] != kinds[1]:

                    change_type = kind_changed

                    display_path = (paths[0] + source_marker

                                    + ' => ' + paths[1] + marker)

                elif changed_content is True or executables[0] != executables[1]:

                    change_type = modified

                else:

                    assert False, "How did we get here?"

                store.append([file_id, real_path, True, display_path, change_type])

        finally:

            self._basis_tree.unlock()

            self._wt.unlock()

        self._treeview_files.set_model(store)

        self._treeview_files.set_cursor(0)

    def _fill_in_diff(self):

        self._diff_view.set_trees(self._wt, self._basis_tree)

    def _compute_delta(self):

        self._delta = self._wt.changes_from(self._basis_tree)

    def construct(self):

        """Build up the dialog widgets."""

        # The primary pane which splits it into left and right (adjustable)

        # sections.

        self._hpane = gtk.HPaned()

        self._construct_left_pane()

        self._construct_right_pane()

        self.vbox.pack_start(self._hpane)

        self._hpane.show()

        self.set_focus(self._global_message_text_view)

        # This seems like a reasonable default, we might like it to

        # be a bit wider, so that by default we can fit an 80-line diff in the

        # diff window.

        # Alternatively, we should be saving the last position/size rather than

        # setting it to a fixed value every time we start up.

        screen = self.get_screen()

        monitor = 0 # We would like it to be the monitor we are going to

                    # display on, but I don't know how to figure that out

                    # Only really useful for freaks like me that run dual

                    # monitor, with different sizes on the monitors

        monitor_rect = screen.get_monitor_geometry(monitor)

        width = int(monitor_rect.width * 0.66)

        height = int(monitor_rect.height * 0.66)

        self.set_default_size(width, height)

        self._hpane.set_position(300)

    def _construct_left_pane(self):

        self._left_pane_box = gtk.VBox(homogeneous=False, spacing=5)

        self._construct_file_list()

        self._construct_pending_list()

        self._hpane.pack1(self._left_pane_box, resize=False, shrink=False)

        self._left_pane_box.show()

    def _construct_right_pane(self):

        # TODO: I really want to make it so the diff view gets more space than

        # the global commit message, and the per-file commit message gets even

        # less. When I did it with wxGlade, I set it to 4 for diff, 2 for

        # commit, and 1 for file commit, and it looked good. But I don't seem

        # to have a way to do that with the gtk boxes... :( (Which is extra

        # weird since wx uses gtk on Linux...)

        self._right_pane_table = gtk.Table(rows=10, columns=1, homogeneous=False)

        self._right_pane_table.set_row_spacings(5)

        self._right_pane_table.set_col_spacings(5)

        self._right_pane_table_row = 0

        self._construct_diff_view()

        self._construct_file_message()

        self._construct_global_message()

        self._right_pane_table.show()

        self._hpane.pack2(self._right_pane_table, resize=True, shrink=True)

    def _add_to_right_table(self, widget, weight, expanding=False):

        """Add another widget to the table

        :param widget: The object to add

        :param weight: How many rows does this widget get to request

        :param expanding: Should expand|fill|shrink be set?

        """

        end_row = self._right_pane_table_row + weight

        options = 0

        expand_opts = gtk.EXPAND | gtk.FILL | gtk.SHRINK

        if expanding:

            options = expand_opts

        self._right_pane_table.attach(widget, 0, 1,

                                      self._right_pane_table_row, end_row,

                                      xoptions=expand_opts, yoptions=options)

        self._right_pane_table_row = end_row

    def _construct_file_list(self):

        self._files_box = gtk.VBox(homogeneous=False, spacing=0)

        file_label = gtk.Label(_('Files'))

        file_label.show()

        self._files_box.pack_start(file_label, expand=False)

        scroller = gtk.ScrolledWindow()

        scroller.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)

        self._treeview_files = gtk.TreeView()

        self._treeview_files.show()

        scroller.add(self._treeview_files)

        scroller.show()

        scroller.set_shadow_type(gtk.SHADOW_IN)

        self._files_box.pack_start(scroller,

                                   expand=True, fill=True)

        self._files_box.show()

        self._left_pane_box.pack_start(self._files_box)

        liststore = gtk.ListStore(

            gobject.TYPE_STRING,  # [0] file_id

            gobject.TYPE_STRING,  # [1] real path

            gobject.TYPE_BOOLEAN, # [2] checkbox

            gobject.TYPE_STRING,  # [3] display path

            gobject.TYPE_STRING,  # [4] changes type

            )

        self._files_store = liststore

        self._treeview_files.set_model(liststore)

        crt = gtk.CellRendererToggle()

        crt.set_active(not bool(self._pending))

        crt.connect("toggled", self._toggle_commit, self._files_store)

        if self._pending:

            name = _('Commit*')

        else:

            name = _('Commit')

        self._treeview_files.append_column(gtk.TreeViewColumn(name,

                                           crt, active=2))

        self._treeview_files.append_column(gtk.TreeViewColumn(_('Path'),

                                           gtk.CellRendererText(), text=3))

        self._treeview_files.append_column(gtk.TreeViewColumn(_('Type'),

                                           gtk.CellRendererText(), text=4))

        self._treeview_files.connect('cursor-changed',

                                     self._on_treeview_files_cursor_changed)

    def _toggle_commit(self, cell, path, model):

        if model[path][0] is None: # No file_id means 'All Files'

            new_val = not model[path][2]

            for node in model:

                node[2] = new_val

        else:

            model[path][2] = not model[path][2]

    def _construct_pending_list(self):

        # Pending information defaults to hidden, we put it all in 1 box, so

        # that we can show/hide all of them at once

        self._pending_box = gtk.VBox()

        self._pending_box.hide()

        pending_message = gtk.Label()

        pending_message.set_markup(

            _('<i>* Cannot select specific files when merging</i>'))

        self._pending_box.pack_start(pending_message, expand=False, padding=5)

        pending_message.show()

        pending_label = gtk.Label(_('Pending Revisions'))

        self._pending_box.pack_start(pending_label, expand=False, padding=0)

        pending_label.show()

        scroller = gtk.ScrolledWindow()

        scroller.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)

        self._treeview_pending = gtk.TreeView()

        scroller.add(self._treeview_pending)

        scroller.show()

        scroller.set_shadow_type(gtk.SHADOW_IN)

        self._pending_box.pack_start(scroller,

                                     expand=True, fill=True, padding=5)

        self._treeview_pending.show()

        self._left_pane_box.pack_start(self._pending_box)

        liststore = gtk.ListStore(gobject.TYPE_STRING, # revision_id

                                  gobject.TYPE_STRING, # date

                                  gobject.TYPE_STRING, # committer

                                  gobject.TYPE_STRING, # summary

                                 )

        self._pending_store = liststore

        self._treeview_pending.set_model(liststore)

        self._treeview_pending.append_column(gtk.TreeViewColumn(_('Date'),

                                             gtk.CellRendererText(), text=1))

        self._treeview_pending.append_column(gtk.TreeViewColumn(_('Committer'),

                                             gtk.CellRendererText(), text=2))

        self._treeview_pending.append_column(gtk.TreeViewColumn(_('Summary'),

                                             gtk.CellRendererText(), text=3))

    def _construct_diff_view(self):

        from diff import DiffView

        self._diff_label = gtk.Label(_('Diff for whole tree'))

        self._diff_label.set_alignment(0, 0)

        self._right_pane_table.set_row_spacing(self._right_pane_table_row, 0)

        self._add_to_right_table(self._diff_label, 1, False)

        self._diff_label.show()

        self._diff_view = DiffView()

        self._add_to_right_table(self._diff_view, 4, True)

        self._diff_view.show()

    def _construct_file_message(self):

        file_message_box = gtk.VBox()

        scroller = gtk.ScrolledWindow()

        scroller.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)

        self._file_message_text_view = gtk.TextView()

        scroller.add(self._file_message_text_view)

        scroller.show()

        scroller.set_shadow_type(gtk.SHADOW_IN)

        file_message_box.pack_start(scroller, expand=True, fill=True)

        self._file_message_text_view.modify_font(pango.FontDescription("Monospace"))

        self._file_message_text_view.set_wrap_mode(gtk.WRAP_WORD)

        self._file_message_text_view.set_accepts_tab(False)

        self._file_message_text_view.show()

        self._file_message_expander = gtk.Expander(_('Per File Message'))

        self._file_message_expander.add(file_message_box)

        file_message_box.show()

        self._add_to_right_table(self._file_message_expander, 1, False)

        self._file_message_expander.show()

    def _construct_global_message(self):

        self._global_message_label = gtk.Label(_('Global Commit Message'))

        self._global_message_label.set_alignment(0, 0)

        self._right_pane_table.set_row_spacing(self._right_pane_table_row, 0)

        self._add_to_right_table(self._global_message_label, 1, False)

        # Can we remove the spacing between the label and the box?

        self._global_message_label.show()

        scroller = gtk.ScrolledWindow()

        scroller.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)

        self._global_message_text_view = gtk.TextView()

        self._global_message_text_view.modify_font(pango.FontDescription("Monospace"))

        scroller.add(self._global_message_text_view)

        scroller.show()

        scroller.set_shadow_type(gtk.SHADOW_IN)

        self._add_to_right_table(scroller, 2, True)

        self._file_message_text_view.set_wrap_mode(gtk.WRAP_WORD)

        self._file_message_text_view.set_accepts_tab(False)

        self._global_message_text_view.show()

    def _on_treeview_files_cursor_changed(self, treeview):

        treeselection = treeview.get_selection()

        (model, iterable) = treeselection.get_selected()

        if iterable is not None:

            path, display_path = model.get(iterable, 1, 3) # Get the real_path attribute

            self._diff_label.set_text(_('Diff for ') + display_path)

            if path is None:

                self._diff_view.show_diff(None)

            else:

                self._diff_view.show_diff([path])

    @staticmethod

    def _rev_to_pending_info(rev):

        """Get the information from a pending merge."""

        from bzrlib.osutils import format_date

        rev_dict = {}

        rev_dict['committer'] = re.sub('<.*@.*>', '', rev.committer).strip(' ')

        rev_dict['summary'] = rev.get_summary()

        rev_dict['date'] = format_date(rev.timestamp,

                                       rev.timezone or 0,

                                       'original', date_fmt="%Y-%m-%d",

                                       show_offset=False)

        rev_dict['revision_id'] = rev.revision_id

        return rev_dict

# class CommitDialog(gtk.Dialog):

#     """ New implementation of the Commit dialog. """

#     def __init__(self, wt, wtpath, notbranch, selected=None, parent=None):

#         """ Initialize the Commit Dialog. """

#         gtk.Dialog.__init__(self, title="Commit - Olive",

#                                   parent=parent,

#                                   flags=0,

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

#         

#         # Get arguments

#         self.wt = wt

#         self.wtpath = wtpath

#         self.notbranch = notbranch

#         self.selected = selected

#         

#         # Set the delta

#         self.old_tree = self.wt.branch.repository.revision_tree(self.wt.branch.last_revision())

#         self.delta = self.wt.changes_from(self.old_tree)

#         

#         # Get pending merges

#         self.pending = self._pending_merges(self.wt)

#         

#         # Do some preliminary checks

#         self._is_checkout = False

#         self._is_pending = False

#         if self.wt is None and not self.notbranch:

#             error_dialog(_('Directory does not have a working tree'),

#                          _('Operation aborted.'))

#             self.close()

#             return

# 

#         if self.notbranch:

#             error_dialog(_('Directory is not a branch'),

#                          _('You can perform this action only in a branch.'))

#             self.close()

#             return

#         else:

#             if self.wt.branch.get_bound_location() is not None:

#                 # we have a checkout, so the local commit checkbox must appear

#                 self._is_checkout = True

#             

#             if self.pending:

#                 # There are pending merges, file selection not supported

#                 self._is_pending = True

#         

#         # Create the widgets

#         # This is the main horizontal box, which is used to separate the commit

#         # info from the diff window.

#         self._hpane = gtk.HPaned()

#         self._button_commit = gtk.Button(_("Comm_it"), use_underline=True)

#         self._expander_files = gtk.Expander(_("File(s) to commit"))

#         self._vpaned_main = gtk.VPaned()

#         self._scrolledwindow_files = gtk.ScrolledWindow()

#         self._scrolledwindow_message = gtk.ScrolledWindow()

#         self._treeview_files = gtk.TreeView()

#         self._vbox_message = gtk.VBox()

#         self._label_message = gtk.Label(_("Commit message:"))

#         self._textview_message = gtk.TextView()

#         

#         if self._is_pending:

#             self._expander_merges = gtk.Expander(_("Pending merges"))

#             self._vpaned_list = gtk.VPaned()

#             self._scrolledwindow_merges = gtk.ScrolledWindow()

#             self._treeview_merges = gtk.TreeView()

# 

#         # Set callbacks

#         self._button_commit.connect('clicked', self._on_commit_clicked)

#         self._treeview_files.connect('cursor-changed', self._on_treeview_files_cursor_changed)

#         self._treeview_files.connect('row-activated', self._on_treeview_files_row_activated)

#         

#         # Set properties

#         self._scrolledwindow_files.set_policy(gtk.POLICY_AUTOMATIC,

#                                               gtk.POLICY_AUTOMATIC)

#         self._scrolledwindow_message.set_policy(gtk.POLICY_AUTOMATIC,

#                                                 gtk.POLICY_AUTOMATIC)

#         self._textview_message.modify_font(pango.FontDescription("Monospace"))

#         self.set_default_size(500, 500)

#         self._vpaned_main.set_position(200)

#         self._button_commit.set_flags(gtk.CAN_DEFAULT)

# 

#         if self._is_pending:

#             self._scrolledwindow_merges.set_policy(gtk.POLICY_AUTOMATIC,

#                                                    gtk.POLICY_AUTOMATIC)

#             self._treeview_files.set_sensitive(False)

#         

#         # Construct the dialog

#         self.action_area.pack_end(self._button_commit)

#         

#         self._scrolledwindow_files.add(self._treeview_files)

#         self._scrolledwindow_message.add(self._textview_message)

#         

#         self._expander_files.add(self._scrolledwindow_files)

#         

#         self._vbox_message.pack_start(self._label_message, False, False)

#         self._vbox_message.pack_start(self._scrolledwindow_message, True, True)

#         

#         if self._is_pending:        

#             self._expander_merges.add(self._scrolledwindow_merges)

#             self._scrolledwindow_merges.add(self._treeview_merges)

#             self._vpaned_list.add1(self._expander_files)

#             self._vpaned_list.add2(self._expander_merges)

#             self._vpaned_main.add1(self._vpaned_list)

#         else:

#             self._vpaned_main.add1(self._expander_files)

# 

#         self._vpaned_main.add2(self._vbox_message)

#         

#         self._hpane.pack1(self._vpaned_main)

#         self.vbox.pack_start(self._hpane, expand=True, fill=True)

#         if self._is_checkout: 

#             self._check_local = gtk.CheckButton(_("_Only commit locally"),

#                                                 use_underline=True)

#             self.vbox.pack_start(self._check_local, False, False)

#             if have_dbus:

#                 bus = dbus.SystemBus()

#                 proxy_obj = bus.get_object('org.freedesktop.NetworkManager', 

#                               '/org/freedesktop/NetworkManager')

#                 dbus_iface = dbus.Interface(

#                         proxy_obj, 'org.freedesktop.NetworkManager')

#                 try:

#                     # 3 is the enum value for STATE_CONNECTED

#                     self._check_local.set_active(dbus_iface.state() != 3)

#                 except dbus.DBusException, e:

#                     # Silently drop errors. While DBus may be 

#                     # available, NetworkManager doesn't necessarily have to be

#                     mutter("unable to get networkmanager state: %r" % e)

#                 

#         # Create the file list

#         self._create_file_view()

#         # Create the pending merges

#         self._create_pending_merges()

#         self._create_diff_view()

#         

#         # Expand the corresponding expander

#         if self._is_pending:

#             self._expander_merges.set_expanded(True)

#         else:

#             self._expander_files.set_expanded(True)

#         

#         # Display dialog

#         self.vbox.show_all()

#         

#         # Default to Commit button

#         self._button_commit.grab_default()

#     

#     def _show_diff_view(self, treeview):

#         # FIXME: the diff window freezes for some reason

#         treeselection = treeview.get_selection()

#         (model, iter) = treeselection.get_selected()

# 

#         if iter is not None:

#             selected = model.get_value(iter, 3) # Get the real_path attribute

#             self._diff_display.show_diff([selected])

# 

#     def _on_treeview_files_cursor_changed(self, treeview):

#         self._show_diff_view(treeview)

#         

#     def _on_treeview_files_row_activated(self, treeview, path, view_column):

#         self._show_diff_view(treeview)

#     

#     @show_bzr_error

#     def _on_commit_clicked(self, button):

#         """ Commit button clicked handler. """

#         textbuffer = self._textview_message.get_buffer()

#         start, end = textbuffer.get_bounds()

#         message = textbuffer.get_text(start, end).decode('utf-8')

#         

#         if not self.pending:

#             specific_files = self._get_specific_files()

#         else:

#             specific_files = None

# 

#         if message == '':

#             response = question_dialog(_('Commit with an empty message?'),

#                                        _('You can describe your commit intent in the message.'))

#             if response == gtk.RESPONSE_NO:

#                 # Kindly give focus to message area

#                 self._textview_message.grab_focus()

#                 return

# 

#         if self._is_checkout:

#             local = self._check_local.get_active()

#         else:

#             local = False

# 

#         if list(self.wt.unknowns()) != []:

#             response = question_dialog(_("Commit with unknowns?"),

#                _("Unknown files exist in the working tree. Commit anyway?"))

#             if response == gtk.RESPONSE_NO:

#                 return

#         

#         try:

#             self.wt.commit(message,

#                        allow_pointless=False,

#                        strict=False,

#                        local=local,

#                        specific_files=specific_files)

#         except errors.PointlessCommit:

#             response = question_dialog(_('Commit with no changes?'),

#                                        _('There are no changes in the working tree.'))

#             if response == gtk.RESPONSE_YES:

#                 self.wt.commit(message,

#                                allow_pointless=True,

#                                strict=False,

#                                local=local,

#                                specific_files=specific_files)

#         self.response(gtk.RESPONSE_OK)

# 

#     def _pending_merges(self, wt):

#         """ Return a list of pending merges or None if there are none of them. """

#         parents = wt.get_parent_ids()

#         if len(parents) < 2:

#             return None

#         

#         import re

#         from bzrlib.osutils import format_date

#         

#         pending = parents[1:]

#         branch = wt.branch

#         last_revision = parents[0]

#         

#         if last_revision is not None:

#             try:

#                 ignore = set(branch.repository.get_ancestry(last_revision))

#             except errors.NoSuchRevision:

#                 # the last revision is a ghost : assume everything is new 

#                 # except for it

#                 ignore = set([None, last_revision])

#         else:

#             ignore = set([None])

#         

#         pm = []

#         for merge in pending:

#             ignore.add(merge)

#             try:

#                 m_revision = branch.repository.get_revision(merge)

#                 

#                 rev = {}

#                 rev['committer'] = re.sub('<.*@.*>', '', m_revision.committer).strip(' ')

#                 rev['summary'] = m_revision.get_summary()

#                 rev['date'] = format_date(m_revision.timestamp,

#                                           m_revision.timezone or 0, 

#                                           'original', date_fmt="%Y-%m-%d",

#                                           show_offset=False)

#                 

#                 pm.append(rev)

#                 

#                 inner_merges = branch.repository.get_ancestry(merge)

#                 assert inner_merges[0] is None

#                 inner_merges.pop(0)

#                 inner_merges.reverse()

#                 for mmerge in inner_merges:

#                     if mmerge in ignore:

#                         continue

#                     mm_revision = branch.repository.get_revision(mmerge)

#                     

#                     rev = {}

#                     rev['committer'] = re.sub('<.*@.*>', '', mm_revision.committer).strip(' ')

#                     rev['summary'] = mm_revision.get_summary()

#                     rev['date'] = format_date(mm_revision.timestamp,

#                                               mm_revision.timezone or 0, 

#                                               'original', date_fmt="%Y-%m-%d",

#                                               show_offset=False)

#                 

#                     pm.append(rev)

#                     

#                     ignore.add(mmerge)

#             except errors.NoSuchRevision: