Resurrect alternative UIs

The various alternative UIs have been updated to once again be functional
with the latest bitbake internals.  Each of the UIs still have much room for
functional improvement.

In particular, they have been updated to:
 - interact with the new process based server
 - handle the current set of events and notifications fired from the server
   and its associated subsystems

(Bitbake rev: b947e7aa405966262c0614cae02e7978ec637095)

Signed-off-by: Bob Foerster <robert@erafx.com>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>

bitbake/bin/bitbake

@@ -71,7 +71,7 @@ def get_ui(config):
         return getattr(module, interface).main
     except AttributeError:
         sys.exit("FATAL: Invalid user interface '%s' specified.\n"
-                 "Valid interfaces: ncurses, depexp, knotty [default]." % interface)
+                 "Valid interfaces: depexp, goggle, ncurses, knotty [default]." % interface)
 
 
 # Display bitbake/OE warnings via the BitBake.Warnings logger, ignoring others"""

bitbake/lib/bb/ui/crumbs/progress.py

@@ -14,4 +14,4 @@ class ProgressBar(gtk.Dialog):
 
     def update(self, x, y):
         self.progress.set_fraction(float(x)/float(y))
-        self.progress.set_text("%d/%d (%2d %%)" % (x, y, x*100/y))
+        self.progress.set_text("%2d %%" % (x*100/y))

bitbake/lib/bb/ui/crumbs/runningbuild.py

@@ -1,3 +1,4 @@
+
 #
 # BitBake Graphical GTK User Interface
 #
@@ -20,9 +21,20 @@
 
 import gtk
 import gobject
+import logging
+import time
+import urllib
+import urllib2
+
+class Colors(object):
+    OK = "#ffffff"
+    RUNNING = "#aaffaa"
+    WARNING ="#f88017"
+    ERROR = "#ffaaaa"
 
 class RunningBuildModel (gtk.TreeStore):
-    (COL_TYPE, COL_PACKAGE, COL_TASK, COL_MESSAGE, COL_ICON, COL_ACTIVE) = (0, 1, 2, 3, 4, 5)
+    (COL_LOG, COL_PACKAGE, COL_TASK, COL_MESSAGE, COL_ICON, COL_COLOR, COL_NUM_ACTIVE) = range(7)
+
     def __init__ (self):
         gtk.TreeStore.__init__ (self,
                                 gobject.TYPE_STRING,
@@ -30,7 +42,8 @@ class RunningBuildModel (gtk.TreeStore):
                                 gobject.TYPE_STRING,
                                 gobject.TYPE_STRING,
                                 gobject.TYPE_STRING,
-                                gobject.TYPE_BOOLEAN)
+                                gobject.TYPE_STRING,
+                                gobject.TYPE_INT)
 
 class RunningBuild (gobject.GObject):
     __gsignals__ = {
@@ -63,32 +76,42 @@ class RunningBuild (gobject.GObject):
         # for the message.
         if hasattr(event, 'pid'):
             pid = event.pid
-            if pid in self.pids_to_task:
+        if hasattr(event, 'process'):
-                (package, task) = self.pids_to_task[pid]
+            pid = event.process
-                parent = self.tasks_to_iter[(package, task)]
 
-        if isinstance(event, bb.msg.MsgBase):
+        if pid and pid in self.pids_to_task:
-            # Ignore the "Running task i of n .."
+            (package, task) = self.pids_to_task[pid]
-            if (event._message.startswith ("Running task")):
+            parent = self.tasks_to_iter[(package, task)]
+
+        if(isinstance(event, logging.LogRecord)):
+            if (event.msg.startswith ("Running task")):
                 return # don't add these to the list
 
-            # Set a pretty icon for the message based on it's type.
+            if event.levelno >= logging.ERROR:
-            if isinstance(event, bb.msg.MsgWarn):
-                icon = "dialog-warning"
-            elif isinstance(event, bb.msg.MsgError):
                 icon = "dialog-error"
+                color = Colors.ERROR
+            elif event.levelno >= logging.WARNING:
+                icon = "dialog-warning"
+                color = Colors.WARNING
             else:
                 icon = None
+                color = Colors.OK
+
+            # if we know which package we belong to, we'll append onto its list.
+            # otherwise, we'll jump to the top of the master list
+            if parent:
+                tree_add = self.model.append
+            else:
+                tree_add = self.model.prepend
+            tree_add(parent,
+                              (None,
+                               package,
+                               task,
+                               event.getMessage(),
+                               icon,
+                               color,
+                               0))
 
-            # Add the message to the tree either at the top level if parent is
-            # None otherwise as a descendent of a task.
-            self.model.append (parent,
-                               (event.__class__.__name__.split()[-1], # e.g. MsgWarn, MsgError
-                                package,
-                                task,
-                                event._message,
-                                icon,
-                                False))
         elif isinstance(event, bb.build.TaskStarted):
             (package, task) = (event._package, event._task)
 
@@ -101,76 +124,142 @@ class RunningBuild (gobject.GObject):
             if ((package, None) in self.tasks_to_iter):
                 parent = self.tasks_to_iter[(package, None)]
             else:
-                parent = self.model.append (None, (None,
+                parent = self.model.prepend(None, (None,
                                                    package,
                                                    None,
                                                    "Package: %s" % (package),
                                                    None,
-                                                   False))
+                                                   Colors.OK,
+                                                   0))
                 self.tasks_to_iter[(package, None)] = parent
 
             # Because this parent package now has an active child mark it as
             # such.
-            self.model.set(parent, self.model.COL_ICON, "gtk-execute")
+            # @todo if parent is already in error, don't mark it green
+            self.model.set(parent, self.model.COL_ICON, "gtk-execute",
+                           self.model.COL_COLOR, Colors.RUNNING)
 
             # Add an entry in the model for this task
             i = self.model.append (parent, (None,
                                             package,
                                             task,
                                             "Task: %s" % (task),
-                                            None,
+                                            "gtk-execute",
-                                            False))
+                                            Colors.RUNNING,
+                                            0))
+
+            # update the parent's active task count
+            num_active = self.model.get(parent, self.model.COL_NUM_ACTIVE)[0] + 1
+            self.model.set(parent, self.model.COL_NUM_ACTIVE, num_active)
 
             # Save out the iter so that we can find it when we have a message
             # that we need to attach to a task.
             self.tasks_to_iter[(package, task)] = i
 
-            # Mark this task as active.
-            self.model.set(i, self.model.COL_ICON, "gtk-execute")
-
         elif isinstance(event, bb.build.TaskBase):
+            current = self.tasks_to_iter[(package, task)]
+            parent = self.tasks_to_iter[(package, None)]
+
+            # remove this task from the parent's active count
+            num_active = self.model.get(parent, self.model.COL_NUM_ACTIVE)[0] - 1
+            self.model.set(parent, self.model.COL_NUM_ACTIVE, num_active)
 
             if isinstance(event, bb.build.TaskFailed):
-                # Mark the task as failed
+                # Mark the task and parent as failed
-                i = self.tasks_to_iter[(package, task)]
+                icon = "dialog-error"
-                self.model.set(i, self.model.COL_ICON, "dialog-error")
+                color = Colors.ERROR
 
-                # Mark the parent package as failed
+                logfile = event.logfile
-                i = self.tasks_to_iter[(package, None)]
+                if logfile and os.path.exists(logfile):
-                self.model.set(i, self.model.COL_ICON, "dialog-error")
+                    with open(logfile) as f:
+                        logdata = f.read()
+                        self.model.append(current, ('pastebin', None, None, logdata, 'gtk-error', Colors.OK, 0))
+
+                for i in (current, parent):
+                    self.model.set(i, self.model.COL_ICON, icon,
+                                   self.model.COL_COLOR, color)
             else:
+                icon = None
+                color = Colors.OK
+
                 # Mark the task as inactive
-                i = self.tasks_to_iter[(package, task)]
+                self.model.set(current, self.model.COL_ICON, icon,
-                self.model.set(i, self.model.COL_ICON, None)
+                               self.model.COL_COLOR, color)
 
-                # Mark the parent package as inactive
+                # Mark the parent package as inactive, but make sure to
+                # preserve error and active states
                 i = self.tasks_to_iter[(package, None)]
-                self.model.set(i, self.model.COL_ICON, None)
+                if self.model.get(parent, self.model.COL_ICON) != 'dialog-error':
-
+                    self.model.set(parent, self.model.COL_ICON, icon)
+                    if num_active == 0:
+                        self.model.set(parent, self.model.COL_COLOR, Colors.OK)
 
             # Clear the iters and the pids since when the task goes away the
             # pid will no longer be used for messages
             del self.tasks_to_iter[(package, task)]
             del self.pids_to_task[pid]
 
+        elif isinstance(event, bb.event.BuildStarted):
+
+            self.model.prepend(None, (None,
+                                      None,
+                                      None,
+                                      "Build Started (%s)" % time.strftime('%m/%d/%Y %H:%M:%S'),
+                                      None,
+                                      Colors.OK,
+                                      0))
         elif isinstance(event, bb.event.BuildCompleted):
             failures = int (event._failures)
+            self.model.prepend(None, (None,
+                                      None,
+                                      None,
+                                      "Build Completed (%s)" % time.strftime('%m/%d/%Y %H:%M:%S'),
+                                      None,
+                                      Colors.OK,
+                                      0))
 
             # Emit the appropriate signal depending on the number of failures
-            if (failures > 1):
+            if (failures >= 1):
                 self.emit ("build-failed")
             else:
                 self.emit ("build-succeeded")
 
+        elif isinstance(event, bb.event.CacheLoadStarted) and pbar:
+            pbar.set_title("Loading cache")
+            self.progress_total = event.total
+            pbar.update(0, self.progress_total)
+        elif isinstance(event, bb.event.CacheLoadProgress) and pbar:
+            pbar.update(event.current, self.progress_total)
+        elif isinstance(event, bb.event.CacheLoadCompleted) and pbar:
+            pbar.update(self.progress_total, self.progress_total)
+
+        elif isinstance(event, bb.event.ParseStarted) and pbar:
+            pbar.set_title("Processing recipes")
+            self.progress_total = event.total
+            pbar.update(0, self.progress_total)
         elif isinstance(event, bb.event.ParseProgress) and pbar:
-            x = event.sofar
+            pbar.update(event.current, self.progress_total)
-            y = event.total
+        elif isinstance(event, bb.event.ParseCompleted) and pbar:
-            if x == y:
+            pbar.hide()
-                pbar.hide()
+
-                return
+        return
-            pbar.update(x, y)
+
+
+def do_pastebin(text):
+    url = 'http://pastebin.com/api_public.php'
+    params = {'paste_code': text, 'paste_format': 'text'}
+
+    req = urllib2.Request(url, urllib.urlencode(params))
+    response = urllib2.urlopen(req)
+    paste_url = response.read()
+
+    return paste_url
+
 
 class RunningBuildTreeView (gtk.TreeView):
+    __gsignals__ = {
+        "button_press_event" : "override"
+        }
     def __init__ (self):
         gtk.TreeView.__init__ (self)
 
@@ -181,6 +270,42 @@ class RunningBuildTreeView (gtk.TreeView):
         self.append_column (col)
 
         # The message of the build.
-        renderer = gtk.CellRendererText ()
+        self.message_renderer = gtk.CellRendererText ()
-        col = gtk.TreeViewColumn ("Message", renderer, text=3)
+        self.message_column = gtk.TreeViewColumn ("Message", self.message_renderer, text=3)
-        self.append_column (col)
+        self.message_column.add_attribute(self.message_renderer, 'background', 5)
+        self.message_renderer.set_property('editable', 5)
+        self.append_column (self.message_column)
+
+    def do_button_press_event(self, event):
+        gtk.TreeView.do_button_press_event(self, event)
+
+        if event.button == 3:
+            selection = super(RunningBuildTreeView, self).get_selection()
+            (model, iter) = selection.get_selected()
+            if iter is not None:
+                can_paste = model.get(iter, model.COL_LOG)[0]
+                if can_paste == 'pastebin':
+                    # build a simple menu with a pastebin option
+                    menu = gtk.Menu()
+                    menuitem = gtk.MenuItem("Send log to pastebin")
+                    menu.append(menuitem)
+                    menuitem.connect("activate", self.pastebin_handler, (model, iter))
+                    menuitem.show()
+                    menu.show()
+                    menu.popup(None, None, None, event.button, event.time)
+
+    def pastebin_handler(self, widget, data):
+        """
+        Send the log data to pastebin, then add the new paste url to the
+        clipboard.
+        """
+        (model, iter) = data
+        paste_url = do_pastebin(model.get(iter, model.COL_MESSAGE)[0])
+
+        # @todo Provide visual feedback to the user that it is done and that
+        # it worked.
+        print paste_url
+
+        clipboard = gtk.clipboard_get()
+        clipboard.set_text(paste_url)
+        clipboard.store()

bitbake/lib/bb/ui/depexp.py

@@ -19,6 +19,7 @@
 
 import gobject
 import gtk
+import Queue
 import threading
 import xmlrpclib
 import bb
@@ -32,6 +33,7 @@ from bb.ui.crumbs.progress import ProgressBar
 (TYPE_DEP, TYPE_RDEP) = (0, 1)
 (COL_DEP_TYPE, COL_DEP_PARENT, COL_DEP_PACKAGE) = (0, 1, 2)
 
+
 class PackageDepView(gtk.TreeView):
     def __init__(self, model, dep_type, label):
         gtk.TreeView.__init__(self)
@@ -52,6 +54,7 @@ class PackageDepView(gtk.TreeView):
         self.current = package
         self.filter_model.refilter()
 
+
 class PackageReverseDepView(gtk.TreeView):
     def __init__(self, model, label):
         gtk.TreeView.__init__(self)
@@ -69,6 +72,7 @@ class PackageReverseDepView(gtk.TreeView):
         self.current = package
         self.filter_model.refilter()
 
+
 class DepExplorer(gtk.Window):
     def __init__(self):
         gtk.Window.__init__(self)
@@ -90,9 +94,12 @@ class DepExplorer(gtk.Window):
         scrolled = gtk.ScrolledWindow()
         scrolled.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
         scrolled.set_shadow_type(gtk.SHADOW_IN)
+
         self.pkg_treeview = gtk.TreeView(self.pkg_model)
         self.pkg_treeview.get_selection().connect("changed", self.on_cursor_changed)
-        self.pkg_treeview.append_column(gtk.TreeViewColumn("Package", gtk.CellRendererText(), text=COL_PKG_NAME))
+        column = gtk.TreeViewColumn("Package", gtk.CellRendererText(), text=COL_PKG_NAME)
+        self.pkg_treeview.append_column(column)
+        column.set_sort_column_id(COL_PKG_NAME)
         pane.add1(scrolled)
         scrolled.add(self.pkg_treeview)
 
@@ -158,7 +165,6 @@ class DepExplorer(gtk.Window):
 
 
 def parse(depgraph, pkg_model, depends_model):
-
     for package in depgraph["pn"]:
         pkg_model.set(pkg_model.append(), COL_PKG_NAME, package)
 
@@ -176,6 +182,7 @@ def parse(depgraph, pkg_model, depends_model):
                               COL_DEP_PARENT, package,
                               COL_DEP_PACKAGE, rdepend)
 
+
 class gtkthread(threading.Thread):
     quit = threading.Event()
     def __init__(self, shutdown):
@@ -189,8 +196,8 @@ class gtkthread(threading.Thread):
         gtk.main()
         gtkthread.quit.set()
 
-def main(server, eventHandler):
 
+def main(server, eventHandler):
     try:
         cmdline = server.runCommand(["getCmdLineAction"])
         if not cmdline or cmdline[0] != "generateDotGraph":
@@ -214,25 +221,54 @@ def main(server, eventHandler):
     pbar = ProgressBar(dep)
     gtk.gdk.threads_leave()
 
+    progress_total = 0
     while True:
         try:
             event = eventHandler.waitEvent(0.25)
             if gtkthread.quit.isSet():
+                server.runCommand(["stateStop"])
                 break
 
             if event is None:
                 continue
-            if isinstance(event, bb.event.ParseProgress):
+
-                x = event.sofar
+            if isinstance(event, bb.event.CacheLoadStarted):
-                y = event.total
+                progress_total = event.total
-                if x == y:
-                    print(("\nParsing finished. %d cached, %d parsed, %d skipped, %d masked, %d errors."
-                        % ( event.cached, event.parsed, event.skipped, event.masked, event.errors)))
-                    pbar.hide()
-                    continue
                 gtk.gdk.threads_enter()
-                pbar.update(x, y)
+                pbar.set_title("Loading Cache")
+                pbar.update(0, progress_total)
                 gtk.gdk.threads_leave()
+
+            if isinstance(event, bb.event.CacheLoadProgress):
+                x = event.current
+                gtk.gdk.threads_enter()
+                pbar.update(x, progress_total)
+                gtk.gdk.threads_leave()
+                continue
+
+            if isinstance(event, bb.event.CacheLoadCompleted):
+                gtk.gdk.threads_enter()
+                pbar.update(progress_total, progress_total)
+                gtk.gdk.threads_leave()
+                continue
+
+            if isinstance(event, bb.event.ParseStarted):
+                progress_total = event.total
+                gtk.gdk.threads_enter()
+                pbar.set_title("Processing recipes")
+                pbar.update(0, progress_total)
+                gtk.gdk.threads_leave()
+
+            if isinstance(event, bb.event.ParseProgress):
+                x = event.current
+                gtk.gdk.threads_enter()
+                pbar.update(x, progress_total)
+                gtk.gdk.threads_leave()
+
+                continue
+
+            if isinstance(event, bb.event.ParseCompleted):
+                pbar.hide()
                 continue
 
             if isinstance(event, bb.event.DepTreeGenerated):
@@ -242,16 +278,22 @@ def main(server, eventHandler):
 
             if isinstance(event, bb.command.CommandCompleted):
                 continue
+
             if isinstance(event, bb.command.CommandFailed):
                 print("Command execution failed: %s" % event.error)
                 return event.exitcode
+
             if isinstance(event, bb.command.CommandExit):
                 return event.exitcode
+
             if isinstance(event, bb.cooker.CookerExit):
                 break
 
             continue
-
+        except EnvironmentError as ioerror:
+            # ignore interrupted io
+            if ioerror.args[0] == 4:
+                pass
         except KeyboardInterrupt:
             if shutdown == 2:
                 print("\nThird Keyboard Interrupt, exit.\n")

bitbake/lib/bb/ui/goggle.py

@@ -24,19 +24,32 @@ import xmlrpclib
 from bb.ui.crumbs.runningbuild import RunningBuildTreeView, RunningBuild
 from bb.ui.crumbs.progress import ProgressBar
 
+import Queue
+
+
 def event_handle_idle_func (eventHandler, build, pbar):
 
     # Consume as many messages as we can in the time available to us
     event = eventHandler.getEvent()
     while event:
-        build.handle_event (event, pbar)
         event = eventHandler.getEvent()
+        build.handle_event (event, pbar)
 
     return True
 
 def scroll_tv_cb (model, path, iter, view):
     view.scroll_to_cell (path)
 
+
+# @todo hook these into the GUI so the user has feedback...
+def running_build_failed_cb (running_build):
+    pass
+
+
+def running_build_succeeded_cb (running_build):
+    pass
+
+
 class MainWindow (gtk.Window):
     def __init__ (self):
         gtk.Window.__init__ (self, gtk.WINDOW_TOPLEVEL)
@@ -49,6 +62,7 @@ class MainWindow (gtk.Window):
         self.set_default_size(640, 480)
         scrolled_window.add (self.cur_build_tv)
 
+
 def main (server, eventHandler):
     gobject.threads_init()
     gtk.gdk.threads_init()
@@ -61,9 +75,11 @@ def main (server, eventHandler):
     running_build = RunningBuild ()
     window.cur_build_tv.set_model (running_build.model)
     running_build.model.connect("row-inserted", scroll_tv_cb, window.cur_build_tv)
+    running_build.connect ("build-succeeded", running_build_succeeded_cb)
+    running_build.connect ("build-failed", running_build_failed_cb)
+
     try:
         cmdline = server.runCommand(["getCmdLineAction"])
-        print(cmdline)
         if not cmdline:
             return 1
         ret = server.runCommand(cmdline)
@@ -76,10 +92,18 @@ def main (server, eventHandler):
 
     # Use a timeout function for probing the event queue to find out if we
     # have a message waiting for us.
-    gobject.timeout_add (200,
+    gobject.timeout_add (100,
                          event_handle_idle_func,
                          eventHandler,
                          running_build,
                          pbar)
 
-    gtk.main()
+    try:
+        gtk.main()
+    except EnvironmentError as ioerror:
+        # ignore interrupted io
+        if ioerror.args[0] == 4:
+            pass
+    finally:
+        server.runCommand(["stateStop"])
+

bitbake/lib/bb/ui/knotty.py

@@ -228,6 +228,10 @@ def main(server, eventHandler):
 
             logger.error("Unknown event: %s", event)
 
+        except EnvironmentError as ioerror:
+            # ignore interrupted io
+            if ioerror.args[0] == 4:
+                pass
         except KeyboardInterrupt:
             if shutdown == 2:
                 print("\nThird Keyboard Interrupt, exit.\n")

bitbake/lib/bb/ui/ncurses.py

@@ -44,8 +44,9 @@
 
 """
 
-from __future__ import division
 
+from __future__ import division
+import logging
 import os, sys, curses, itertools, time
 import bb
 import xmlrpclib
@@ -246,29 +247,35 @@ class NCursesUI:
                 event = eventHandler.waitEvent(0.25)
                 if not event:
                     continue
+
                 helper.eventHandler(event)
-                #mw.appendText("%s\n" % event[0])
                 if isinstance(event, bb.build.TaskBase):
                     mw.appendText("NOTE: %s\n" % event._message)
-                if isinstance(event, bb.msg.MsgDebug):
+                if isinstance(event, logging.LogRecord):
-                    mw.appendText('DEBUG: ' + event._message + '\n')
+                    mw.appendText(logging.getLevelName(event.levelno) + ': ' + event.getMessage() + '\n')
-                if isinstance(event, bb.msg.MsgNote):
+
-                    mw.appendText('NOTE: ' + event._message + '\n')
+                if isinstance(event, bb.event.CacheLoadStarted):
-                if isinstance(event, bb.msg.MsgWarn):
+                    self.parse_total = event.total
-                    mw.appendText('WARNING: ' + event._message + '\n')
+                if isinstance(event, bb.event.CacheLoadProgress):
-                if isinstance(event, bb.msg.MsgError):
+                    x = event.current
-                    mw.appendText('ERROR: ' + event._message + '\n')
+                    y = self.parse_total
-                if isinstance(event, bb.msg.MsgFatal):
+                    mw.setStatus("Loading Cache:   %s [%2d %%]" % ( next(parsespin), x*100/y ) )
-                    mw.appendText('FATAL: ' + event._message + '\n')
+                if isinstance(event, bb.event.CacheLoadCompleted):
+                    mw.setStatus("Idle")
+                    mw.appendText("Loaded %d entries from dependency cache.\n"
+                                % ( event.num_entries))
+
+                if isinstance(event, bb.event.ParseStarted):
+                    self.parse_total = event.total
                 if isinstance(event, bb.event.ParseProgress):
-                    x = event.sofar
+                    x = event.current
-                    y = event.total
+                    y = self.parse_total
-                    if x == y:
+                    mw.setStatus("Parsing Recipes: %s [%2d %%]" % ( next(parsespin), x*100/y ) )
-                        mw.setStatus("Idle")
+                if isinstance(event, bb.event.ParseCompleted):
-                        mw.appendText("Parsing finished. %d cached, %d parsed, %d skipped, %d masked."
+                    mw.setStatus("Idle")
+                    mw.appendText("Parsing finished. %d cached, %d parsed, %d skipped, %d masked.\n"
                                 % ( event.cached, event.parsed, event.skipped, event.masked ))
-                    else:
+
-                        mw.setStatus("Parsing: %s (%04d/%04d) [%2d %%]" % ( next(parsespin), x, y, x*100//y ) )
 #                if isinstance(event, bb.build.TaskFailed):
 #                    if event.logfile:
 #                        if data.getVar("BBINCLUDELOGS", d):
@@ -289,7 +296,9 @@ class NCursesUI:
 #                            bb.msg.error(bb.msg.domain.Build, "see log in %s" % logfile)
 
                 if isinstance(event, bb.command.CommandCompleted):
-                    exitflag = True
+                    # stop so the user can see the result of the build, but
+                    # also allow them to now exit with a single ^C
+                    shutdown = 2
                 if isinstance(event, bb.command.CommandFailed):
                     mw.appendText("Command execution failed: %s" % event.error)
                     time.sleep(2)
@@ -306,13 +315,18 @@ class NCursesUI:
                     if activetasks:
                         taw.appendText("Active Tasks:\n")
                         for task in activetasks.itervalues():
-                            taw.appendText(task["title"])
+                            taw.appendText(task["title"] + '\n')
                     if failedtasks:
                         taw.appendText("Failed Tasks:\n")
                         for task in failedtasks:
-                            taw.appendText(task["title"])
+                            taw.appendText(task["title"] + '\n')
 
                 curses.doupdate()
+            except EnvironmentError as ioerror:
+                # ignore interrupted io
+                if ioerror.args[0] == 4:
+                    pass
+
             except KeyboardInterrupt:
                 if shutdown == 2:
                     mw.appendText("Third Keyboard Interrupt, exit.\n")