diff options
Diffstat (limited to 'lib/bb/ui/puccho.py')
| -rw-r--r-- | lib/bb/ui/puccho.py | 426 |
1 files changed, 426 insertions, 0 deletions
diff --git a/lib/bb/ui/puccho.py b/lib/bb/ui/puccho.py new file mode 100644 index 000000000..a6a613f1c --- /dev/null +++ b/lib/bb/ui/puccho.py @@ -0,0 +1,426 @@ +# +# BitBake Graphical GTK User Interface +# +# Copyright (C) 2008 Intel Corporation +# +# Authored by Rob Bradford <rob@linux.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 +# published by the Free Software Foundation. +# +# 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., +# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + +import gtk +import gobject +import gtk.glade +import threading +import urllib2 +import os +import datetime + +from bb.ui.crumbs.buildmanager import BuildManager, BuildConfiguration +from bb.ui.crumbs.buildmanager import BuildManagerTreeView + +from bb.ui.crumbs.runningbuild import RunningBuild, RunningBuildTreeView + +# The metadata loader is used by the BuildSetupDialog to download the +# available options to populate the dialog +class MetaDataLoader(gobject.GObject): + """ This class provides the mechanism for loading the metadata (the + fetching and parsing) from a given URL. The metadata encompasses details + on what machines are available. The distribution and images available for + the machine and the the uris to use for building the given machine.""" + __gsignals__ = { + 'success' : (gobject.SIGNAL_RUN_LAST, + gobject.TYPE_NONE, + ()), + 'error' : (gobject.SIGNAL_RUN_LAST, + gobject.TYPE_NONE, + (gobject.TYPE_STRING,)) + } + + # We use these little helper functions to ensure that we take the gdk lock + # when emitting the signal. These functions are called as idles (so that + # they happen in the gtk / main thread's main loop. + def emit_error_signal (self, remark): + gtk.gdk.threads_enter() + self.emit ("error", remark) + gtk.gdk.threads_leave() + + def emit_success_signal (self): + gtk.gdk.threads_enter() + self.emit ("success") + gtk.gdk.threads_leave() + + def __init__ (self): + gobject.GObject.__init__ (self) + + class LoaderThread(threading.Thread): + """ This class provides an asynchronous loader for the metadata (by + using threads and signals). This is useful since the metadata may be + at a remote URL.""" + class LoaderImportException (Exception): + pass + + def __init__(self, loader, url): + threading.Thread.__init__ (self) + self.url = url + self.loader = loader + + def run (self): + result = {} + try: + f = urllib2.urlopen (self.url) + + # Parse the metadata format. The format is.... + # <machine>;<default distro>|<distro>...;<default image>|<image>...;<type##url>|... + for line in f.readlines(): + components = line.split(";") + if (len (components) < 4): + raise MetaDataLoader.LoaderThread.LoaderImportException + machine = components[0] + distros = components[1].split("|") + images = components[2].split("|") + urls = components[3].split("|") + + result[machine] = (distros, images, urls) + + # Create an object representing this *potential* + # configuration. It can become concrete if the machine, distro + # and image are all chosen in the UI + configuration = BuildConfiguration() + configuration.metadata_url = self.url + configuration.machine_options = result + self.loader.configuration = configuration + + # Emit that we've actually got a configuration + gobject.idle_add (MetaDataLoader.emit_success_signal, + self.loader) + + except MetaDataLoader.LoaderThread.LoaderImportException, e: + gobject.idle_add (MetaDataLoader.emit_error_signal, self.loader, + "Repository metadata corrupt") + except Exception, e: + gobject.idle_add (MetaDataLoader.emit_error_signal, self.loader, + "Unable to download repository metadata") + print e + + def try_fetch_from_url (self, url): + # Try and download the metadata. Firing a signal if successful + thread = MetaDataLoader.LoaderThread(self, url) + thread.start() + +class BuildSetupDialog (gtk.Dialog): + RESPONSE_BUILD = 1 + + # A little helper method that just sets the states on the widgets based on + # whether we've got good metadata or not. + def set_configurable (self, configurable): + if (self.configurable == configurable): + return + + self.configurable = configurable + for widget in self.conf_widgets: + widget.set_sensitive (configurable) + + if not configurable: + self.machine_combo.set_active (-1) + self.distribution_combo.set_active (-1) + self.image_combo.set_active (-1) + + # GTK widget callbacks + def refresh_button_clicked (self, button): + # Refresh button clicked. + + url = self.location_entry.get_chars (0, -1) + self.loader.try_fetch_from_url(url) + + def repository_entry_editable_changed (self, entry): + if (len (entry.get_chars (0, -1)) > 0): + self.refresh_button.set_sensitive (True) + else: + self.refresh_button.set_sensitive (False) + self.clear_status_message() + + # If we were previously configurable we are no longer since the + # location entry has been changed + self.set_configurable (False) + + def machine_combo_changed (self, combobox): + active_iter = combobox.get_active_iter() + + if not active_iter: + return + + model = combobox.get_model() + + if model: + chosen_machine = model.get (active_iter, 0)[0] + + (distros_model, images_model) = \ + self.loader.configuration.get_distro_and_images_models (chosen_machine) + + self.distribution_combo.set_model (distros_model) + self.image_combo.set_model (images_model) + + # Callbacks from the loader + def loader_success_cb (self, loader): + self.status_image.set_from_icon_name ("info", + gtk.ICON_SIZE_BUTTON) + self.status_image.show() + self.status_label.set_label ("Repository metadata successfully downloaded") + + # Set the models on the combo boxes based on the models generated from + # the configuration that the loader has created + + # We just need to set the machine here, that then determines the + # distro and image options. Cunning huh? :-) + + self.configuration = self.loader.configuration + model = self.configuration.get_machines_model () + self.machine_combo.set_model (model) + + self.set_configurable (True) + + def loader_error_cb (self, loader, message): + self.status_image.set_from_icon_name ("error", + gtk.ICON_SIZE_BUTTON) + self.status_image.show() + self.status_label.set_text ("Error downloading repository metadata") + for widget in self.conf_widgets: + widget.set_sensitive (False) + + def clear_status_message (self): + self.status_image.hide() + self.status_label.set_label ( + """<i>Enter the repository location and press _Refresh</i>""") + + def __init__ (self): + gtk.Dialog.__init__ (self) + + # Cancel + self.add_button (gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL) + + # Build + button = gtk.Button ("_Build", None, True) + image = gtk.Image () + image.set_from_stock (gtk.STOCK_EXECUTE,gtk.ICON_SIZE_BUTTON) + button.set_image (image) + self.add_action_widget (button, BuildSetupDialog.RESPONSE_BUILD) + button.show_all () + + # Pull in *just* the table from the Glade XML data. + gxml = gtk.glade.XML ("bitbake-dev/lib/bb/ui/crumbs/puccho.glade", + root = "build_table") + table = gxml.get_widget ("build_table") + self.vbox.pack_start (table, True, False, 0) + + # Grab all the widgets that we need to turn on/off when we refresh... + self.conf_widgets = [] + self.conf_widgets += [gxml.get_widget ("machine_label")] + self.conf_widgets += [gxml.get_widget ("distribution_label")] + self.conf_widgets += [gxml.get_widget ("image_label")] + self.conf_widgets += [gxml.get_widget ("machine_combo")] + self.conf_widgets += [gxml.get_widget ("distribution_combo")] + self.conf_widgets += [gxml.get_widget ("image_combo")] + + # Grab the status widgets + self.status_image = gxml.get_widget ("status_image") + self.status_label = gxml.get_widget ("status_label") + + # Grab the refresh button and connect to the clicked signal + self.refresh_button = gxml.get_widget ("refresh_button") + self.refresh_button.connect ("clicked", self.refresh_button_clicked) + + # Grab the location entry and connect to editable::changed + self.location_entry = gxml.get_widget ("location_entry") + self.location_entry.connect ("changed", + self.repository_entry_editable_changed) + + # Grab the machine combo and hook onto the changed signal. This then + # allows us to populate the distro and image combos + self.machine_combo = gxml.get_widget ("machine_combo") + self.machine_combo.connect ("changed", self.machine_combo_changed) + + # Setup the combo + cell = gtk.CellRendererText() + self.machine_combo.pack_start(cell, True) + self.machine_combo.add_attribute(cell, 'text', 0) + + # Grab the distro and image combos. We need these to populate with + # models once the machine is chosen + self.distribution_combo = gxml.get_widget ("distribution_combo") + cell = gtk.CellRendererText() + self.distribution_combo.pack_start(cell, True) + self.distribution_combo.add_attribute(cell, 'text', 0) + + self.image_combo = gxml.get_widget ("image_combo") + cell = gtk.CellRendererText() + self.image_combo.pack_start(cell, True) + self.image_combo.add_attribute(cell, 'text', 0) + + # Put the default descriptive text in the status box + self.clear_status_message() + + # Mark as non-configurable, this is just greys out the widgets the + # user can't yet use + self.configurable = False + self.set_configurable(False) + + # Show the table + table.show_all () + + # The loader and some signals connected to it to update the status + # area + self.loader = MetaDataLoader() + self.loader.connect ("success", self.loader_success_cb) + self.loader.connect ("error", self.loader_error_cb) + + def update_configuration (self): + """ A poorly named function but it updates the internal configuration + from the widgets. This can make that configuration concrete and can + thus be used for building """ + # Extract the chosen machine from the combo + model = self.machine_combo.get_model() + active_iter = self.machine_combo.get_active_iter() + if (active_iter): + self.configuration.machine = model.get(active_iter, 0)[0] + + # Extract the chosen distro from the combo + model = self.distribution_combo.get_model() + active_iter = self.distribution_combo.get_active_iter() + if (active_iter): + self.configuration.distro = model.get(active_iter, 0)[0] + + # Extract the chosen image from the combo + model = self.image_combo.get_model() + active_iter = self.image_combo.get_active_iter() + if (active_iter): + self.configuration.image = model.get(active_iter, 0)[0] + +# This function operates to pull events out from the event queue and then push +# them into the RunningBuild (which then drives the RunningBuild which then +# pushes through and updates the progress tree view.) +# +# TODO: Should be a method on the RunningBuild class +def event_handle_timeout (eventHandler, build): + # Consume as many messages as we can ... + event = eventHandler.getEvent() + while event: + build.handle_event (event) + event = eventHandler.getEvent() + return True + +class MainWindow (gtk.Window): + + # Callback that gets fired when the user hits a button in the + # BuildSetupDialog. + def build_dialog_box_response_cb (self, dialog, response_id): + conf = None + if (response_id == BuildSetupDialog.RESPONSE_BUILD): + dialog.update_configuration() + print dialog.configuration.machine, dialog.configuration.distro, \ + dialog.configuration.image + conf = dialog.configuration + + dialog.destroy() + + if conf: + self.manager.do_build (conf) + + def build_button_clicked_cb (self, button): + dialog = BuildSetupDialog () + + # For some unknown reason Dialog.run causes nice little deadlocks ... :-( + dialog.connect ("response", self.build_dialog_box_response_cb) + dialog.show() + + def __init__ (self): + gtk.Window.__init__ (self) + + # Pull in *just* the main vbox from the Glade XML data and then pack + # that inside the window + gxml = gtk.glade.XML ("bitbake-dev/lib/bb/ui/crumbs/puccho.glade", + root = "main_window_vbox") + vbox = gxml.get_widget ("main_window_vbox") + self.add (vbox) + + # Create the tree views for the build manager view and the progress view + self.build_manager_view = BuildManagerTreeView() + self.running_build_view = RunningBuildTreeView() + + # Grab the scrolled windows that we put the tree views into + self.results_scrolledwindow = gxml.get_widget ("results_scrolledwindow") + self.progress_scrolledwindow = gxml.get_widget ("progress_scrolledwindow") + + # Put the tree views inside ... + self.results_scrolledwindow.add (self.build_manager_view) + self.progress_scrolledwindow.add (self.running_build_view) + + # Hook up the build button... + self.build_button = gxml.get_widget ("main_toolbutton_build") + self.build_button.connect ("clicked", self.build_button_clicked_cb) + +# I'm not very happy about the current ownership of the RunningBuild. I have +# my suspicions that this object should be held by the BuildManager since we +# care about the signals in the manager + +def running_build_succeeded_cb (running_build, manager): + # Notify the manager that a build has succeeded. This is necessary as part + # of the 'hack' that we use for making the row in the model / view + # representing the ongoing build change into a row representing the + # completed build. Since we know only one build can be running a time then + # we can handle this. + + # FIXME: Refactor all this so that the RunningBuild is owned by the + # BuildManager. It can then hook onto the signals directly and drive + # interesting things it cares about. + manager.notify_build_succeeded () + print "build succeeded" + +def running_build_failed_cb (running_build, manager): + # As above + print "build failed" + manager.notify_build_failed () + +def init (server, eventHandler): + # Initialise threading... + gobject.threads_init() + gtk.gdk.threads_init() + + main_window = MainWindow () + main_window.show_all () + + # Set up the build manager stuff in general + builds_dir = os.path.join (os.getcwd(), "results") + manager = BuildManager (server, builds_dir) + main_window.build_manager_view.set_model (manager.model) + + # Do the running build setup + running_build = RunningBuild () + main_window.running_build_view.set_model (running_build.model) + running_build.connect ("build-succeeded", running_build_succeeded_cb, + manager) + running_build.connect ("build-failed", running_build_failed_cb, manager) + + # We need to save the manager into the MainWindow so that the toolbar + # button can use it. + # FIXME: Refactor ? + main_window.manager = manager + + # Use a timeout function for probing the event queue to find out if we + # have a message waiting for us. + gobject.timeout_add (200, + event_handle_timeout, + eventHandler, + running_build) + + gtk.main() |