Hob: A new implemetation (v2)

This commit implements a new design for hob
Some of the new features:
 - Friendly new designed GUI. Quick response to user actions.
 - Two step builds support package generation and image generation.
 - Support running GUI seprarately from bitbake server.
 - Recipe/package selection and deselection.
 - Accurate customization for image contents and size.
 - Progress bars showing the parsing and build status.
 - Load/save user configurations from/into templates.

Signed-off-by: Dongxiao Xu <dongxiao.xu@intel.com>
Signed-off-by: Shane Wang <shane.wang@intel.com>
Signed-off-by: Liming An <limingx.l.an@intel.com>
Signed-off-by: Fengxia Hua <fengxia.hua@intel.com>
Designed-by: Belen Barros Pena <belen.barros.pena@intel.com>

1 files changed, 48 insertions, 1067 deletions

diff --git a/lib/bb/ui/hob.py b/lib/bb/ui/hob.py
index 0fcaad54a..429bb750d 100644..100755
--- a/lib/bb/ui/hob.py
+++ b/lib/bb/ui/hob.py
@@ -1,9 +1,11 @@
+#!/usr/bin/env python
 #
 # BitBake Graphical GTK User Interface
 #
 # Copyright (C) 2011        Intel Corporation
 #
 # Authored by Joshua Lock <josh@linux.intel.com>
+# Authored by Dongxiao Xu <dongxiao.xu@intel.com>
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 as
@@ -18,1087 +20,58 @@
 # with this program; if not, write to the Free Software Foundation, Inc.,
 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
-import glib
 import gobject
 import gtk
-from bb.ui.crumbs.tasklistmodel import TaskListModel, BuildRep
+import sys
+import os
+sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.dirname(__file__))))
+try:
+    import bb
+except RuntimeError as exc:
+    sys.exit(str(exc))
+from bb.ui import uihelper
+from bb.ui.crumbs.hoblistmodel import RecipeListModel, PackageListModel
 from bb.ui.crumbs.hobeventhandler import HobHandler
-from bb.ui.crumbs.configurator import Configurator
-from bb.ui.crumbs.hobprefs import HobPrefs
-from bb.ui.crumbs.layereditor import LayerEditor
-from bb.ui.crumbs.runningbuild import RunningBuildTreeView, RunningBuild
-from bb.ui.crumbs.hig import CrumbsDialog
-import xmlrpclib
-import logging
-import Queue
+from bb.ui.crumbs.builder import Builder
 
 extraCaches = ['bb.cache_extra:HobRecipeInfo']
 
-class MainWindow (gtk.Window):
-            
-    def __init__(self, taskmodel, handler, configurator, prefs, layers, mach):
-        gtk.Window.__init__(self)
-        # global state
-        self.curr_mach = mach
-        self.machine_handler_id = None
-        self.image_combo_id = None
-        self.generating = False
-        self.files_to_clean = []
-        self.selected_image = None
-        self.selected_packages = None
-        self.stopping = False
-
-        self.model = taskmodel
-        self.model.connect("tasklist-populated", self.update_model)
-        self.model.connect("image-changed", self.image_changed_string_cb)
-        self.handler = handler
-        self.configurator = configurator
-        self.prefs = prefs
-        self.layers = layers
-        self.save_path = None
-        self.dirty = False
-        self.build_succeeded = False
-
-        self.connect("delete-event", self.destroy_window)
-        self.set_title("Image Creator")
-        self.set_icon_name("applications-development")
-        self.set_default_size(1000, 650)
-
-        self.build = RunningBuild(sequential=True)
-        self.build.connect("build-failed", self.running_build_failed_cb)
-        self.build.connect("build-succeeded", self.running_build_succeeded_cb)
-        self.build.connect("build-started", self.build_started_cb)
-        self.build.connect("build-complete", self.build_complete_cb)
-
-        vbox = gtk.VBox(False, 0)
-        vbox.set_border_width(0)
-        vbox.show()
-        self.add(vbox)
-        self.menu = self.create_menu()
-        vbox.pack_start(self.menu, False)
-        createview = self.create_build_gui()
-        self.back = None
-        self.cancel = None
-        buildview = self.view_build_gui()
-        self.nb = gtk.Notebook()
-        self.nb.append_page(createview)
-        self.nb.append_page(buildview)
-        self.nb.set_current_page(0)
-        self.nb.set_show_tabs(False)
-        vbox.pack_start(self.nb, expand=True, fill=True)
-
-    def destroy_window(self, widget, event):
-        self.quit()
-
-    def menu_quit(self, action):
-        self.quit()
-
-    def quit(self):
-        if self.dirty and len(self.model.contents):
-            question = "Would you like to save your customisations?"
-            dialog = CrumbsDialog(self, question, gtk.STOCK_DIALOG_WARNING)
-            dialog.add_buttons(gtk.STOCK_NO, gtk.RESPONSE_NO,
-                               gtk.STOCK_YES, gtk.RESPONSE_YES)
-            resp = dialog.run()
-            dialog.destroy()
-            if resp == gtk.RESPONSE_YES:
-                if not self.save_path:
-                    self.get_save_path()
-
-                if self.save_path:
-                    self.save_recipe_file()
-                    rep = self.model.get_build_rep()
-                    rep.writeRecipe(self.save_path, self.model)
-
-        # Prevent the busy cursor being shown after hob exits if quit is called
-        # whilst the busy cursor is set
-        self.set_busy_cursor(False)
-
-        self.handler.remove_temp_dir()
-
-        gtk.main_quit()
-
-    """
-    In the case of a fatal error give the user as much information as possible
-    and then exit.
-    """
-    def fatal_error_cb(self, handler, errormsg, phase):
-        lbl = "<b>Error!</b>\nThere was an unrecoverable error during the"
-        lbl = lbl + " <i>%s</i> phase of BitBake. This must be" % phase
-        lbl = lbl + " rectified before the GUI will function. The error"
-        lbl = lbl + " message which which caused this is:\n\n\"%s\"" % errormsg
-        dialog = CrumbsDialog(self, lbl, gtk.STOCK_DIALOG_ERROR)
-        dialog.add_button("Exit", gtk.RESPONSE_OK)
-        response = dialog.run()
-        dialog.destroy()
-        self.set_busy_cursor(False)
-        gtk.main_quit()
-
-    def scroll_tv_cb(self, model, path, it, view):
-        view.scroll_to_cell(path)
-
-    def running_build_succeeded_cb(self, running_build):
-        self.build_succeeded = True
-
-    def running_build_failed_cb(self, running_build):
-        self.build_succeeded = False
-
-    def image_changed_string_cb(self, model, new_image):
-        self.selected_image = new_image
-        # disconnect the image combo's signal handler
-        if self.image_combo_id:
-            self.image_combo.disconnect(self.image_combo_id)
-            self.image_combo_id = None
-        cnt = 0
-        it = self.model.images.get_iter_first()
-        while it:
-            path = self.model.images.get_path(it)
-            if self.model.images[path][self.model.COL_NAME] == new_image:
-                self.image_combo.set_active(cnt)
-                break
-            it = self.model.images.iter_next(it)
-            cnt = cnt + 1
-        # Reconnect the signal handler
-        if not self.image_combo_id:
-            self.image_combo_id = self.image_combo.connect("changed", self.image_changed_cb)
-
-    def image_changed_cb(self, combo):
-        model = self.image_combo.get_model()
-        it = self.image_combo.get_active_iter()
-        if it:
-            path = model.get_path(it)
-            # Firstly, deselect the previous image
-            userp, _ = self.model.get_selected_packages()
-            self.model.reset()
-            # Now select the new image and save its path in case we
-            # change the image later
-            self.toggle_package(path, model, image=True)
-            if len(userp):
-                self.model.set_selected_packages(userp)
-            self.selected_image = model[path][self.model.COL_NAME]
-
-    def reload_triggered_cb(self, handler, image, packages):
-        if image:
-            self.selected_image = image
-        if len(packages):
-            self.selected_packages = packages.split()
-
-    def data_generated(self, handler):
-        self.generating = False
-        self.enable_widgets()
-
-    def machine_combo_changed_cb(self, combo, handler):
-        mach = combo.get_active_text()
-        if mach != self.curr_mach:
-            self.curr_mach = mach
-            # Flush this straight to the file as MACHINE is changed
-            # independently of other 'Preferences'
-            self.configurator.setConfVar('MACHINE', mach)
-            self.configurator.writeConf()
-            handler.set_machine(mach)
-            handler.reload_data()
-
-    def update_machines(self, handler, machines):
-        active = 0
-        # disconnect the signal handler before updating the combo model
-        if self.machine_handler_id:
-            self.machine_combo.disconnect(self.machine_handler_id)
-            self.machine_handler_id = None
-
-        model = self.machine_combo.get_model()
-        if model:
-            model.clear()
-
-        for machine in machines:
-            self.machine_combo.append_text(machine)
-            if machine == self.curr_mach:
-                self.machine_combo.set_active(active)
-            active = active + 1
-
-        self.machine_handler_id = self.machine_combo.connect("changed", self.machine_combo_changed_cb, handler)
-
-    def set_busy_cursor(self, busy=True):
-        """
-        Convenience method to set the cursor to a spinner when executing
-        a potentially lengthy process.
-        A busy value of False will set the cursor back to the default
-        left pointer.
-        """
-        if busy:
-            cursor = gtk.gdk.Cursor(gtk.gdk.WATCH)
-        else:
-            # TODO: presumably the default cursor is different on RTL
-            # systems. Can we determine the default cursor? Or at least
-            # the cursor which is set before we change it?
-            cursor = gtk.gdk.Cursor(gtk.gdk.LEFT_PTR)
-        window = self.get_root_window()
-        window.set_cursor(cursor)
-
-    def busy_idle_func(self):
-        if self.generating:
-            self.progress.pulse()
-            return True
-        else:
-            if not self.image_combo_id:
-                self.image_combo_id = self.image_combo.connect("changed", self.image_changed_cb)
-            self.progress.set_text("Loaded")
-            self.progress.set_fraction(0.0)
-            self.set_busy_cursor(False)
-            return False
-
-    def busy(self, handler):
-        self.generating = True
-        self.progress.set_text("Loading...")
-        self.set_busy_cursor()
-        if self.image_combo_id:
-            self.image_combo.disconnect(self.image_combo_id)
-            self.image_combo_id = None
-        self.progress.pulse()
-        gobject.timeout_add (100, self.busy_idle_func)
-        self.disable_widgets()
-
-    def enable_widgets(self):
-        self.menu.set_sensitive(True)
-        self.machine_combo.set_sensitive(True)
-        self.image_combo.set_sensitive(True)
-        self.nb.set_sensitive(True)
-        self.contents_tree.set_sensitive(True)
-
-    def disable_widgets(self):
-        self.menu.set_sensitive(False)
-        self.machine_combo.set_sensitive(False)
-        self.image_combo.set_sensitive(False)
-        self.nb.set_sensitive(False)
-        self.contents_tree.set_sensitive(False)
-
-    def update_model(self, model):
-        # We want the packages model to be alphabetised and sortable so create
-        # a TreeModelSort to use in the view
-        pkgsaz_model = gtk.TreeModelSort(self.model.packages_model())
-        pkgsaz_model.set_sort_column_id(self.model.COL_NAME, gtk.SORT_ASCENDING)
-        # Unset default sort func so that we only toggle between A-Z and
-        # Z-A sorting
-        pkgsaz_model.set_default_sort_func(None)
-        self.pkgsaz_tree.set_model(pkgsaz_model)
-
-        self.image_combo.set_model(self.model.images_model())
-        # Without this the image combo is incorrectly sized on first load of the GUI
-        self.image_combo.set_active(0)
-        self.image_combo.set_active(-1)
-
-        if not self.image_combo_id:
-            self.image_combo_id = self.image_combo.connect("changed", self.image_changed_cb)
-
-        # We want the contents to be alphabetised so create a TreeModelSort to
-        # use in the view
-        contents_model = gtk.TreeModelSort(self.model.contents_model())
-        contents_model.set_sort_column_id(self.model.COL_NAME, gtk.SORT_ASCENDING)
-        # Unset default sort func so that we only toggle between A-Z and
-        # Z-A sorting
-        contents_model.set_default_sort_func(None)
-        self.contents_tree.set_model(contents_model)
-        self.tasks_tree.set_model(self.model.tasks_model())
-
-        if self.selected_image:
-            if self.image_combo_id:
-                self.image_combo.disconnect(self.image_combo_id)
-                self.image_combo_id = None
-            self.model.set_selected_image(self.selected_image)
-            if not self.image_combo_id:
-                self.image_combo_id = self.image_combo.connect("changed", self.image_changed_cb)
-
-        if self.selected_packages:
-            self.model.set_selected_packages(self.selected_packages)
-
-    def reset_clicked_cb(self, button):
-        lbl = "<b>Reset your selections?</b>\n\nAny new changes you have made will be lost"
-        dialog = CrumbsDialog(self, lbl, gtk.STOCK_DIALOG_WARNING)
-        dialog.add_button(gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL)
-        dialog.add_button("Reset", gtk.RESPONSE_OK)
-        response = dialog.run()
-        dialog.destroy()
-        if response == gtk.RESPONSE_OK:
-            self.reset_build()
-            self.search.set_text("")
-            self.selected_image = None
-        return
-
-    def reset_build(self):
-        if self.image_combo_id:
-            self.image_combo.disconnect(self.image_combo_id)
-            self.image_combo_id = None
-        self.image_combo.set_active(-1)
-        self.model.reset()
-        if not self.image_combo_id:
-            self.image_combo_id = self.image_combo.connect("changed", self.image_changed_cb)
-
-    def layers_cb(self, action):
-        resp = self.layers.run()
-        self.layers.save_current_layers()
-        self.layers.hide()
-
-    def add_layer_cb(self, action):
-        self.layers.find_layer(self)
-        self.layers.save_current_layers()
-
-    def preferences_cb(self, action):
-        resp = self.prefs.run()
-        self.prefs.write_changes()
-        self.prefs.hide()
-
-    def about_cb(self, action):
-        about = gtk.AboutDialog()
-        about.set_name("Image Creator")
-        about.set_copyright("Copyright (C) 2011 Intel Corporation")
-        about.set_authors(["Joshua Lock <josh@linux.intel.com>"])
-        about.set_logo_icon_name("applications-development")
-        about.run()
-        about.destroy()
-
-    def save_recipe_file(self):
-        rep = self.model.get_build_rep()
-        rep.writeRecipe(self.save_path, self.model)
-        self.dirty = False
-
-    def get_save_path(self):
-        chooser = gtk.FileChooserDialog(title=None, parent=self,
-                                        action=gtk.FILE_CHOOSER_ACTION_SAVE,
-                                        buttons=(gtk.STOCK_CANCEL,
-                                                 gtk.RESPONSE_CANCEL,
-                                                 gtk.STOCK_SAVE,
-                                                 gtk.RESPONSE_OK,))
-        chooser.set_current_name("myimage.bb")
-        response = chooser.run()
-        if response == gtk.RESPONSE_OK:
-            save_path = chooser.get_filename()
-        else:
-            save_path = None
-        chooser.destroy()
-        self.save_path = save_path
-
-    def save_cb(self, action):
-        if not self.save_path:
-            self.get_save_path()
-        if self.save_path:
-            self.save_recipe_file()
-
-    def save_as_cb(self, action):
-        self.get_save_path()
-        if self.save_path:
-            self.save_recipe_file()
-
-    def open_cb(self, action):
-        chooser = gtk.FileChooserDialog(title=None, parent=self,
-                                        action=gtk.FILE_CHOOSER_ACTION_OPEN,
-                                        buttons=(gtk.STOCK_CANCEL,
-                                                 gtk.RESPONSE_CANCEL,
-                                                 gtk.STOCK_OPEN,
-                                                 gtk.RESPONSE_OK))
-        response  = chooser.run()
-        rep = BuildRep(None, None, None)
-        recipe = chooser.get_filename()
-        if response == gtk.RESPONSE_OK:
-            rep.loadRecipe(recipe)
-            self.save_path = recipe
-            self.model.load_image_rep(rep)
-            self.dirty = False
-        chooser.destroy()
-
-    def bake_clicked_cb(self, button):
-        build_image = True
-
-        rep = self.model.get_build_rep()
-
-        # If no base image and no user selected packages don't build anything
-        if not self.selected_image and not len(rep.userpkgs):
-            lbl = "<b>No selections made</b>\nYou have not made any selections"
-            lbl = lbl + " so there isn't anything to bake at this time."
-            dialog = CrumbsDialog(self, lbl, gtk.STOCK_DIALOG_INFO)
-            dialog.add_button(gtk.STOCK_OK, gtk.RESPONSE_OK)
-            dialog.run()
-            dialog.destroy()
-            return
-        # Else if no base image, ask whether to just build packages or whether
-        # to build a rootfs with the selected packages in
-        elif not self.selected_image:
-            lbl = "<b>Build empty image or only packages?</b>\nA base image"
-            lbl = lbl + " has not been selected.\n\'Empty image' will build"
-            lbl = lbl + " an image with only the selected packages as its"
-            lbl = lbl + " contents.\n'Packages Only' will build only the"
-            lbl = lbl + " selected packages, no image will be created"
-            dialog = CrumbsDialog(self, lbl, gtk.STOCK_DIALOG_WARNING)
-            dialog.add_button(gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL)
-            dialog.add_button("Empty Image", gtk.RESPONSE_OK)
-            dialog.add_button("Packages Only", gtk.RESPONSE_YES)
-            response = dialog.run()
-            dialog.destroy()
-            if response == gtk.RESPONSE_CANCEL:
-                return
-            elif response == gtk.RESPONSE_YES:
-                build_image = False
-            elif response == gtk.RESPONSE_OK:
-                rep.base_image = "empty"
-
-        # Ensure at least one value is set in IMAGE_FSTYPES.
-        have_selected_fstype = False
-        if (len(self.prefs.selected_image_types) and
-            len(self.prefs.selected_image_types[0])):
-            have_selected_fstype = True
-
-        if build_image and not have_selected_fstype:
-            lbl = "<b>No image output type selected</b>\nThere is no image output"
-            lbl = lbl + " selected for the build. Please set an output image type"
-            lbl = lbl + " in the preferences (Edit -> Preferences)."
-            dialog = CrumbsDialog(self, lbl, gtk.STOCK_DIALOG_INFO)
-            dialog.add_button(gtk.STOCK_OK, gtk.RESPONSE_OK)
-            dialog.run()
-            dialog.destroy()
-            return
-        elif build_image:
-            self.handler.make_temp_dir()
-            recipepath =  self.handler.get_temp_recipe_path(rep.base_image)
-            image_name = recipepath.rstrip(".bb")
-            path, sep, image_name = image_name.rpartition("/")
-
-            image = []
-            image.append(image_name)
-
-            rep.writeRecipe(recipepath, self.model)
-            # In the case where we saved the file for the purpose of building
-            # it we should then delete it so that the users workspace doesn't
-            # contain files they haven't explicitly saved there.
-            if not self.save_path:
-                self.files_to_clean.append(recipepath)
-
-            self.handler.build_targets(image, self.configurator)
-        else:
-            self.handler.build_targets(self.model.get_selected_pn(), self.configurator, "packages")
-
-        # Disable parts of the menu which shouldn't be used whilst building
-        self.set_menus_sensitive(False)
-        self.nb.set_current_page(1)
-
-    def set_menus_sensitive(self, sensitive):
-        self.add_layers_action.set_sensitive(sensitive)
-        self.layers_action.set_sensitive(sensitive)
-        self.prefs_action.set_sensitive(sensitive)
-        self.open_action.set_sensitive(sensitive)
-
-    def back_button_clicked_cb(self, button):
-        self.toggle_createview()
-
-    def toggle_createview(self):
-        self.set_menus_sensitive(True)
-        self.build.reset()
-        self.nb.set_current_page(0)
-
-    def build_complete_cb(self, running_build):
-        # Have the handler process BB events again
-        self.handler.building = False
-        self.stopping = False
-        self.back.connect("clicked", self.back_button_clicked_cb)
-        self.back.set_sensitive(True)
-        self.cancel.set_sensitive(False)
-        for f in self.files_to_clean:
-            try:
-                os.remove(f)
-            except OSError:
-                pass
-            self.files_to_clean.remove(f)
-        self.files_to_clean = []
-
-        lbl = "<b>Build completed</b>\n\nClick 'Edit Image' to start another build or 'View Messages' to view the messages output during the build."
-        if self.handler.build_type == "image" and self.build_succeeded:
-            deploy = self.handler.get_image_deploy_dir()
-            lbl = lbl + "\n<a href=\"file://%s\" title=\"%s\">Browse folder of built images</a>." % (deploy, deploy)
-
-        dialog = CrumbsDialog(self, lbl)
-        dialog.add_button("View Messages", gtk.RESPONSE_CANCEL)
-        dialog.add_button("Edit Image", gtk.RESPONSE_OK)
-        response = dialog.run()
-        dialog.destroy()
-        if response == gtk.RESPONSE_OK:
-            self.toggle_createview()
-
-    def build_started_cb(self, running_build):
-        self.back.set_sensitive(False)
-        self.cancel.set_sensitive(True)
-
-    def include_gplv3_cb(self, toggle):
-        excluded = toggle.get_active()
-        self.handler.toggle_gplv3(excluded)
-
-    def change_bb_threads(self, spinner):
-        val = spinner.get_value_as_int()
-        self.handler.set_bbthreads(val)
-
-    def change_make_threads(self, spinner):
-        val = spinner.get_value_as_int()
-        self.handler.set_pmake(val)
-
-    def toggle_toolchain(self, check):
-        enabled = check.get_active()
-        self.handler.toggle_toolchain(enabled)
-
-    def toggle_headers(self, check):
-        enabled = check.get_active()
-        self.handler.toggle_toolchain_headers(enabled)
-
-    def toggle_package_idle_cb(self, opath, image):
-        """
-        As the operations which we're calling on the model can take
-        a significant amount of time (in the order of seconds) during which
-        the GUI is unresponsive as the main loop is blocked perform them in
-        an idle function which at least enables us to set the busy cursor
-        before the UI is blocked giving the appearance of being responsive.
-        """
-        # Whether the item is currently included
-        inc = self.model[opath][self.model.COL_INC]
-        # FIXME: due to inpredictability of the removal of packages we are
-        # temporarily disabling this feature
-        # If the item is already included, mark it for removal then
-        # the sweep_up() method finds affected items and marks them
-        # appropriately
-        # if inc:
-        #     self.model.mark(opath)
-        #     self.model.sweep_up()
-        # # If the item isn't included, mark it for inclusion
-        # else:
-        if not inc:
-            self.model.include_item(item_path=opath,
-                                    binb="User Selected",
-                                    image_contents=image)
-
-        self.set_busy_cursor(False)
+def event_handle_idle_func(eventHandler, hobHandler):
+    # Consume as many messages as we can in the time available to us
+    if not eventHandler:
         return False
+    event = eventHandler.getEvent()
+    while event:
+        hobHandler.handle_event(event)
+        event = eventHandler.getEvent()
+    return True
+
+def main (server = None, eventHandler = None):
+    bitbake_server = None
+    client_addr = None
+    server_addr = None
+
+    if not eventHandler:
+        helper = uihelper.BBUIHelper()
+        server, eventHandler, server_addr, client_addr = helper.findServerDetails()
+    bitbake_server = server
 
-    def toggle_package(self, path, model, image=False):
-        inc = model[path][self.model.COL_INC]
-        # Warn user before removing included packages
-        if inc:
-            # FIXME: due to inpredictability of the removal of packages we are
-            # temporarily disabling this feature
-            return
-            # pn = model[path][self.model.COL_NAME]
-            # revdeps = self.model.find_reverse_depends(pn)
-            # if len(revdeps):
-            #     lbl = "<b>Remove %s?</b>\n\nThis action cannot be undone and all packages which depend on this will be removed\nPackages which depend on %s include %s." % (pn, pn, ", ".join(revdeps).rstrip(","))
-            # else:
-            #     lbl = "<b>Remove %s?</b>\n\nThis action cannot be undone." % pn
-            # dialog = CrumbsDialog(self, lbl, gtk.STOCK_DIALOG_WARNING)
-            # dialog.add_button(gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL)
-            # dialog.add_button("Remove", gtk.RESPONSE_OK)
-            # response = dialog.run()
-            # dialog.destroy()
-            # if response == gtk.RESPONSE_CANCEL:
-            #     return
-
-        self.set_busy_cursor()
-        # Convert path to path in original model
-        opath = model.convert_path_to_child_path(path)
-        # This is a potentially length call which can block the
-        # main loop, therefore do the work in an idle func to keep
-        # the UI responsive
-        glib.idle_add(self.toggle_package_idle_cb, opath, image)
-
-        self.dirty = True
-
-    def toggle_include_cb(self, cell, path, tv):
-        model = tv.get_model()
-        self.toggle_package(path, model)
-
-    def toggle_pkg_include_cb(self, cell, path, tv):
-        # there's an extra layer of models in the packages case.
-        sort_model = tv.get_model()
-        cpath = sort_model.convert_path_to_child_path(path)
-        self.toggle_package(cpath, sort_model.get_model())
-
-    def pkgsaz(self):
-        vbox = gtk.VBox(False, 6)
-        vbox.show()
-        self.pkgsaz_tree = gtk.TreeView()
-        self.pkgsaz_tree.set_headers_visible(True)
-        self.pkgsaz_tree.set_headers_clickable(True)
-        self.pkgsaz_tree.set_enable_search(True)
-        self.pkgsaz_tree.set_search_column(0)
-        self.pkgsaz_tree.get_selection().set_mode(gtk.SELECTION_SINGLE)
-
-        col = gtk.TreeViewColumn('Package')
-        col.set_clickable(True)
-        col.set_sort_column_id(self.model.COL_NAME)
-        col.set_min_width(220)
-        col1 = gtk.TreeViewColumn('Description')
-        col1.set_resizable(True)
-        col1.set_min_width(360)
-        col2 = gtk.TreeViewColumn('License')
-        col2.set_resizable(True)
-        col2.set_clickable(True)
-        col2.set_sort_column_id(self.model.COL_LIC)
-        col2.set_min_width(170)
-        col3 = gtk.TreeViewColumn('Group')
-        col3.set_clickable(True)
-        col3.set_sort_column_id(self.model.COL_GROUP)
-        col4 = gtk.TreeViewColumn('Included')
-        col4.set_min_width(80)
-        col4.set_max_width(90)
-        col4.set_sort_column_id(self.model.COL_INC)
-
-        self.pkgsaz_tree.append_column(col)
-        self.pkgsaz_tree.append_column(col1)
-        self.pkgsaz_tree.append_column(col2)
-        self.pkgsaz_tree.append_column(col3)
-        self.pkgsaz_tree.append_column(col4)
-
-        cell = gtk.CellRendererText()
-        cell1 = gtk.CellRendererText()
-        cell1.set_property('width-chars', 20)
-        cell2 = gtk.CellRendererText()
-        cell2.set_property('width-chars', 20)
-        cell3 = gtk.CellRendererText()
-        cell4 = gtk.CellRendererToggle()
-        cell4.set_property('activatable', True)
-        cell4.connect("toggled", self.toggle_pkg_include_cb, self.pkgsaz_tree)
-
-        col.pack_start(cell, True)
-        col1.pack_start(cell1, True)
-        col2.pack_start(cell2, True)
-        col3.pack_start(cell3, True)
-        col4.pack_end(cell4, True)
-
-        col.set_attributes(cell, text=self.model.COL_NAME)
-        col1.set_attributes(cell1, text=self.model.COL_DESC)
-        col2.set_attributes(cell2, text=self.model.COL_LIC)
-        col3.set_attributes(cell3, text=self.model.COL_GROUP)
-        col4.set_attributes(cell4, active=self.model.COL_INC)
-
-        self.pkgsaz_tree.show()
-
-        scroll = gtk.ScrolledWindow()
-        scroll.set_policy(gtk.POLICY_NEVER, gtk.POLICY_ALWAYS)
-        scroll.set_shadow_type(gtk.SHADOW_IN)
-        scroll.add(self.pkgsaz_tree)
-        vbox.pack_start(scroll, True, True, 0)
-
-        hb = gtk.HBox(False, 0)
-        hb.show()
-        self.search = gtk.Entry()
-        self.search.set_icon_from_stock(gtk.ENTRY_ICON_SECONDARY, "gtk-clear")
-        self.search.connect("icon-release", self.search_entry_clear_cb)
-        self.search.show()
-        self.pkgsaz_tree.set_search_entry(self.search)
-        hb.pack_end(self.search, False, False, 0)
-        label = gtk.Label("Search packages:")
-        label.show()
-        hb.pack_end(label, False, False, 6)
-        vbox.pack_start(hb, False, False, 0)
-
-        return vbox
-
-    def search_entry_clear_cb(self, entry, icon_pos, event):
-        entry.set_text("")
-
-    def tasks(self):
-        vbox = gtk.VBox(False, 6)
-        vbox.show()
-        self.tasks_tree = gtk.TreeView()
-        self.tasks_tree.set_headers_visible(True)
-        self.tasks_tree.set_headers_clickable(False)
-        self.tasks_tree.set_enable_search(True)
-        self.tasks_tree.set_search_column(0)
-        self.tasks_tree.get_selection().set_mode(gtk.SELECTION_SINGLE)
-
-        col = gtk.TreeViewColumn('Package Collection')
-        col.set_min_width(430)
-        col1 = gtk.TreeViewColumn('Description')
-        col1.set_min_width(430)
-        col2 = gtk.TreeViewColumn('Include')
-        col2.set_min_width(70)
-        col2.set_max_width(80)
-
-        self.tasks_tree.append_column(col)
-        self.tasks_tree.append_column(col1)
-        self.tasks_tree.append_column(col2)
-
-        cell = gtk.CellRendererText()
-        cell1 = gtk.CellRendererText()
-        cell2 = gtk.CellRendererToggle()
-        cell2.set_property('activatable', True)
-        cell2.connect("toggled", self.toggle_include_cb, self.tasks_tree)
-
-        col.pack_start(cell, True)
-        col1.pack_start(cell1, True)
-        col2.pack_end(cell2, True)
-
-        col.set_attributes(cell, text=self.model.COL_NAME)
-        col1.set_attributes(cell1, text=self.model.COL_DESC)
-        col2.set_attributes(cell2, active=self.model.COL_INC)
-
-        self.tasks_tree.show()
-
-        scroll = gtk.ScrolledWindow()
-        scroll.set_policy(gtk.POLICY_NEVER, gtk.POLICY_ALWAYS)
-        scroll.set_shadow_type(gtk.SHADOW_IN)
-        scroll.add(self.tasks_tree)
-        vbox.pack_start(scroll, True, True, 0)
-
-        hb = gtk.HBox(False, 0)
-        hb.show()
-        search = gtk.Entry()
-        search.show()
-        self.tasks_tree.set_search_entry(search)
-        hb.pack_end(search, False, False, 0)
-        label = gtk.Label("Search collections:")
-        label.show()
-        hb.pack_end(label, False, False, 6)
-        vbox.pack_start(hb, False, False, 0)
-
-        return vbox
-
-    def cancel_build(self, button):
-        if self.stopping:
-            lbl = "<b>Force Stop build?</b>\nYou've already selected Stop once,"
-            lbl = lbl + " would you like to 'Force Stop' the build?\n\n"
-            lbl = lbl + "This will stop the build as quickly as possible but may"
-            lbl = lbl + " well leave your build directory in an  unusable state"
-            lbl = lbl + " that requires manual steps to fix.\n"
-            dialog = CrumbsDialog(self, lbl, gtk.STOCK_DIALOG_WARNING)
-            dialog.add_button(gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL)
-            dialog.add_button("Force Stop", gtk.RESPONSE_YES)
-        else:
-            lbl = "<b>Stop build?</b>\n\nAre you sure you want to stop this"
-            lbl = lbl + " build?\n\n'Force Stop' will stop the build as quickly as"
-            lbl = lbl + " possible but may well leave your build directory in an"
-            lbl = lbl + " unusable state that requires manual steps to fix.\n\n"
-            lbl = lbl + "'Stop' will stop the build as soon as all in"
-            lbl = lbl + " progress build tasks are finished. However if a"
-            lbl = lbl + " lengthy compilation phase is in progress this may take"
-            lbl = lbl + " some time."
-            dialog = CrumbsDialog(self, lbl, gtk.STOCK_DIALOG_WARNING)
-            dialog.add_button(gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL)
-            dialog.add_button("Stop", gtk.RESPONSE_OK)
-            dialog.add_button("Force Stop", gtk.RESPONSE_YES)
-        response = dialog.run()
-        dialog.destroy()
-        if response != gtk.RESPONSE_CANCEL:
-            self.stopping = True
-        if response == gtk.RESPONSE_OK:
-            self.handler.cancel_build()
-        elif response == gtk.RESPONSE_YES:
-            self.handler.cancel_build(True)
-
-    def view_build_gui(self):
-        vbox = gtk.VBox(False, 12)
-        vbox.set_border_width(6)
-        vbox.show()
-        build_tv = RunningBuildTreeView(readonly=True)
-        build_tv.show()
-        build_tv.set_model(self.build.model)
-        self.build.model.connect("row-inserted", self.scroll_tv_cb, build_tv)
-        scrolled_view = gtk.ScrolledWindow ()
-        scrolled_view.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
-        scrolled_view.add(build_tv)
-        scrolled_view.show()
-        vbox.pack_start(scrolled_view, expand=True, fill=True)
-        hbox = gtk.HBox(False, 12)
-        hbox.show()
-        vbox.pack_start(hbox, expand=False, fill=False)
-        self.back = gtk.Button("Back")
-        self.back.show()
-        self.back.set_sensitive(False)
-        hbox.pack_start(self.back, expand=False, fill=False)
-        self.cancel = gtk.Button("Stop Build")
-        self.cancel.connect("clicked", self.cancel_build)
-        self.cancel.show()
-        hbox.pack_end(self.cancel, expand=False, fill=False)
-
-        return vbox
-
-    def create_menu(self):
-        menu_items = '''<ui>
-        <menubar name="MenuBar">
-          <menu action="File">
-            <menuitem action="Save"/>
-            <menuitem action="Save As"/>
-            <menuitem action="Open"/>
-            <separator/>
-            <menuitem action="AddLayer" label="Add Layer"/>
-            <separator/>
-            <menuitem action="Quit"/>
-          </menu>
-          <menu action="Edit">
-            <menuitem action="Layers" label="Layers"/>
-            <menuitem action="Preferences"/>
-          </menu>
-          <menu action="Help">
-            <menuitem action="About"/>
-          </menu>
-        </menubar>
-        </ui>'''
-
-        uimanager = gtk.UIManager()
-        accel = uimanager.get_accel_group()
-        self.add_accel_group(accel)
-
-        actions = gtk.ActionGroup('ImageCreator')
-        self.actions = actions
-        actions.add_actions([('Quit', gtk.STOCK_QUIT, None, None, None, self.menu_quit,),
-                             ('File', None, '_File'),
-                             ('Save', gtk.STOCK_SAVE, None, None, None, self.save_cb),
-                             ('Save As', gtk.STOCK_SAVE_AS, None, None, None, self.save_as_cb),
-                             ('Edit', None, '_Edit'),
-                             ('Help', None, '_Help'),
-                             ('About', gtk.STOCK_ABOUT, None, None, None, self.about_cb)])
-
-        self.add_layers_action = gtk.Action('AddLayer', 'Add Layer', None, None)
-        self.add_layers_action.connect("activate", self.add_layer_cb)
-        self.actions.add_action(self.add_layers_action)
-        self.layers_action = gtk.Action('Layers', 'Layers', None, None)
-        self.layers_action.connect("activate", self.layers_cb)
-        self.actions.add_action(self.layers_action)
-        self.prefs_action = gtk.Action('Preferences', 'Preferences', None, None)
-        self.prefs_action.connect("activate", self.preferences_cb)
-        self.actions.add_action(self.prefs_action)
-        self.open_action = gtk.Action('Open', 'Open', None, None)
-        self.open_action.connect("activate", self.open_cb)
-        self.actions.add_action(self.open_action)
-
-        uimanager.insert_action_group(actions, 0)
-        uimanager.add_ui_from_string(menu_items)
-
-        menubar = uimanager.get_widget('/MenuBar')
-        menubar.show_all()
-
-        return menubar
-
-    def info_button_clicked_cb(self, button):
-        info = "We cannot accurately predict the image contents before they are built so instead a best"
-        info = info + "  attempt at estimating what the image will contain is listed."
-        dialog = CrumbsDialog(self, info, gtk.STOCK_DIALOG_INFO)
-        dialog.add_buttons(gtk.STOCK_CLOSE, gtk.RESPONSE_OK)
-        resp = dialog.run()
-        dialog.destroy()
-    
-    def create_build_gui(self):
-        vbox = gtk.VBox(False, 12)
-        vbox.set_border_width(6)
-        vbox.show()
-        
-        hbox = gtk.HBox(False, 12)
-        hbox.show()
-        vbox.pack_start(hbox, expand=False, fill=False)
-
-        label = gtk.Label("Machine:")
-        label.show()
-        hbox.pack_start(label, expand=False, fill=False, padding=6)
-        self.machine_combo = gtk.combo_box_new_text()
-        self.machine_combo.show()
-        self.machine_combo.set_tooltip_text("Selects the architecture of the target board for which you would like to build an image.")
-        hbox.pack_start(self.machine_combo, expand=False, fill=False, padding=6)
-        label = gtk.Label("Base image:")
-        label.show()
-        hbox.pack_start(label, expand=False, fill=False, padding=6)
-        self.image_combo = gtk.ComboBox()
-        self.image_combo.show()
-        self.image_combo.set_tooltip_text("Selects the image on which to base the created image")
-        image_combo_cell = gtk.CellRendererText()
-        self.image_combo.pack_start(image_combo_cell, True)
-        self.image_combo.add_attribute(image_combo_cell, 'text', self.model.COL_NAME)
-        hbox.pack_start(self.image_combo, expand=False, fill=False, padding=6)
-        self.progress = gtk.ProgressBar()
-        self.progress.set_size_request(250, -1)
-        hbox.pack_end(self.progress, expand=False, fill=False, padding=6)
-
-        ins = gtk.Notebook()
-        vbox.pack_start(ins, expand=True, fill=True)
-        ins.set_show_tabs(True)
-        label = gtk.Label("Packages")
-        label.show()
-        ins.append_page(self.pkgsaz(), tab_label=label)
-        label = gtk.Label("Package Collections")
-        label.show()
-        ins.append_page(self.tasks(), tab_label=label)
-        ins.set_current_page(0)
-        ins.show_all()
-
-        hbox = gtk.HBox(False, 1)
-        hbox.show()
-        label = gtk.Label("Estimated image contents:")
-        self.model.connect("contents-changed", self.update_package_count_cb, label)
-        label.set_property("xalign", 0.00)
-        label.show()
-        hbox.pack_start(label, expand=False, fill=False, padding=6)
-        info = gtk.Button("?")
-        info.set_tooltip_text("What does this mean?")
-        info.show()
-        info.connect("clicked", self.info_button_clicked_cb)
-        hbox.pack_start(info, expand=False, fill=False, padding=6)
-        vbox.pack_start(hbox, expand=False, fill=False, padding=6)
-        con = self.contents()
-        con.show()
-        vbox.pack_start(con, expand=True, fill=True)
-
-        bbox = gtk.HButtonBox()
-        bbox.set_spacing(12)
-        bbox.set_layout(gtk.BUTTONBOX_END)
-        bbox.show()
-        vbox.pack_start(bbox, expand=False, fill=False)
-        reset = gtk.Button("Reset")
-        reset.connect("clicked", self.reset_clicked_cb)
-        reset.show()
-        bbox.add(reset)
-        bake = gtk.Button("Bake")
-        bake.connect("clicked", self.bake_clicked_cb)
-        bake.show()
-        bbox.add(bake)
-
-        return vbox
-
-    def update_package_count_cb(self, model, count, label):
-        lbl = "Estimated image contents (%s packages):" % count
-        label.set_text(lbl)
-
-    def contents(self):
-        self.contents_tree = gtk.TreeView()
-        self.contents_tree.set_headers_visible(True)
-        self.contents_tree.get_selection().set_mode(gtk.SELECTION_SINGLE)
-
-        # allow searching in the package column
-        self.contents_tree.set_search_column(0)
-        self.contents_tree.set_enable_search(True)
-
-        col = gtk.TreeViewColumn('Package')
-        col.set_sort_column_id(0)
-        col.set_min_width(430)
-        col1 = gtk.TreeViewColumn('Brought in by')
-        col1.set_resizable(True)
-        col1.set_min_width(430)
-
-        self.contents_tree.append_column(col)
-        self.contents_tree.append_column(col1)
-
-        cell = gtk.CellRendererText()
-        cell1 = gtk.CellRendererText()
-        cell1.set_property('width-chars', 20)
-
-        col.pack_start(cell, True)
-        col1.pack_start(cell1, True)
-
-        col.set_attributes(cell, text=self.model.COL_NAME)
-        col1.set_attributes(cell1, text=self.model.COL_BINB)
-
-        self.contents_tree.show()
-
-        scroll = gtk.ScrolledWindow()
-        scroll.set_policy(gtk.POLICY_NEVER, gtk.POLICY_ALWAYS)
-        scroll.set_shadow_type(gtk.SHADOW_IN)
-        scroll.add(self.contents_tree)
-
-        return scroll
-
-def main (server, eventHandler):
     gobject.threads_init()
 
-    # NOTE: For now we require that the user run with pre and post files to
-    # read and store configuration set in the GUI.
-    # We hope to adjust this long term as tracked in Yocto Bugzilla #1441
-    # http://bugzilla.pokylinux.org/show_bug.cgi?id=1441
-    reqfiles = 0
-    dep_files = server.runCommand(["getVariable", "__depends"]) or set()
-    dep_files.union(server.runCommand(["getVariable", "__base_depends"]) or set())
-    for f in dep_files:
-        if f[0].endswith("hob-pre.conf"):
-            reqfiles = reqfiles + 1
-        elif f[0].endswith("hob-post.conf"):
-            reqfiles = reqfiles + 1
-        if reqfiles == 2:
-            break
-    if reqfiles < 2:
-        print("""The hob UI requires a pre file named hob-pre.conf and a post
-file named hob-post.conf to store and read its configuration from. Please run
-hob with these files, i.e.\n
-\bitbake -u hob -r conf/hob-pre.conf -R conf/hob-post.conf""")
-        return
+    # That indicates whether the Hob and the bitbake server are
+    # running on different machines
+    # recipe model and package model
+    recipe_model = RecipeListModel()
+    package_model = PackageListModel()
 
-    taskmodel = TaskListModel()
-    configurator = Configurator()
-    handler = HobHandler(taskmodel, server)
-    mach = server.runCommand(["getVariable", "MACHINE"])
-    sdk_mach = server.runCommand(["getVariable", "SDKMACHINE"])
-    # If SDKMACHINE not set the default SDK_ARCH is used so we
-    # should represent that in the GUI
-    if not sdk_mach:
-        sdk_mach = server.runCommand(["getVariable", "SDK_ARCH"])
-    distro = server.runCommand(["getVariable", "DISTRO"])
-    if not distro:
-        distro = "defaultsetup"
-    bbthread = server.runCommand(["getVariable", "BB_NUMBER_THREADS"])
-    if not bbthread:
-        bbthread = 1
-    else:
-        bbthread = int(bbthread)
-    pmake = server.runCommand(["getVariable", "PARALLEL_MAKE"])
-    if not pmake:
-        pmake = 1
-    else:
-        # The PARALLEL_MAKE variable will be of the format: "-j 3" and we only
-        # want a number for the spinner, so strip everything from the variable
-        # up to and including the space
-        pmake = int(pmake.lstrip("-j "))
-
-    selected_image_types = server.runCommand(["getVariable", "IMAGE_FSTYPES"])
-    all_image_types = server.runCommand(["getVariable", "IMAGE_TYPES"])
-
-    pclasses = server.runCommand(["getVariable", "PACKAGE_CLASSES"]).split(" ")
-    # NOTE: we're only supporting one value for PACKAGE_CLASSES being set
-    # this seems OK because we're using the first package format set in
-    # PACKAGE_CLASSES and that's the package manager used for the rootfs
-    pkg, sep, pclass = pclasses[0].rpartition("_")
-
-    incompatible = server.runCommand(["getVariable", "INCOMPATIBLE_LICENSE"])
-    gplv3disabled = False
-    if incompatible and incompatible.lower().find("gplv3") != -1:
-        gplv3disabled = True
-
-    build_toolchain = bool(server.runCommand(["getVariable", "HOB_BUILD_TOOLCHAIN"]))
-    handler.toggle_toolchain(build_toolchain)
-    build_headers = bool(server.runCommand(["getVariable", "HOB_BUILD_TOOLCHAIN_HEADERS"]))
-    handler.toggle_toolchain_headers(build_headers)
-
-    prefs = HobPrefs(configurator, handler, sdk_mach, distro, pclass,
-                     pmake, bbthread, selected_image_types, all_image_types,
-                     gplv3disabled, build_toolchain, build_headers)
-    layers = LayerEditor(configurator, None)
-    window = MainWindow(taskmodel, handler, configurator, prefs, layers, mach)
-    prefs.set_parent_window(window)
-    layers.set_parent_window(window)
-    window.show_all ()
-    handler.connect("machines-updated", window.update_machines)
-    handler.connect("sdk-machines-updated", prefs.update_sdk_machines)
-    handler.connect("distros-updated", prefs.update_distros)
-    handler.connect("package-formats-found", prefs.update_package_formats)
-    handler.connect("generating-data", window.busy)
-    handler.connect("data-generated", window.data_generated)
-    handler.connect("reload-triggered", window.reload_triggered_cb)
-    configurator.connect("layers-loaded", layers.load_current_layers)
-    configurator.connect("layers-changed", handler.reload_data)
-    handler.connect("config-found", configurator.configFound)
-    handler.connect("fatal-error", window.fatal_error_cb)
-
-    try:
-        # kick the while thing off
-        handler.current_command = handler.CFG_PATH_LOCAL
-        server.runCommand(["findConfigFilePath", "local.conf"])
-    except xmlrpclib.Fault:
-        print("XMLRPC Fault getting commandline:\n %s" % x)
+    hobHandler = HobHandler(bitbake_server, server_addr, client_addr, recipe_model, package_model)
+    if hobHandler.kick() == False:
         return 1
+    builder = Builder(hobHandler, recipe_model, package_model)
 
     # This timeout function regularly probes the event queue to find out if we
     # have any messages waiting for us.
-    gobject.timeout_add (100,
-                         handler.event_handle_idle_func,
-                         eventHandler,
-                         window.build,
-                         window.progress)
+    gobject.timeout_add(10, event_handle_idle_func, eventHandler, hobHandler)
 
     try:
         gtk.main()
@@ -1107,5 +80,13 @@ hob with these files, i.e.\n
         if ioerror.args[0] == 4:
             pass
     finally:
-        server.runCommand(["stateStop"])
+        hobHandler.cancel_build(force = True)
 
+if __name__ == "__main__":
+    try:
+        ret = main()
+    except Exception:
+        ret = 1
+        import traceback
+        traceback.print_exc(15)
+    sys.exit(ret)