Last-Updated field in "My Settings" -> "About My Computer".

Signed-off-by: Ajay Garg <ajay@activitycentral.com>

2 files changed, 75 insertions, 0 deletions

diff --git a/extensions/cpsection/aboutcomputer/model.py b/extensions/cpsection/aboutcomputer/model.py
index 86d2e3f..59bae00 100644
--- a/extensions/cpsection/aboutcomputer/model.py
+++ b/extensions/cpsection/aboutcomputer/model.py
@@ -226,3 +226,56 @@ def get_license():
     except IOError:
         license_text = _not_available
     return license_text
+
+
+def get_last_updated_on_field():
+
+    # Get the number of UNIX seconds of the last update date.
+    last_update_unix_seconds = {}
+    try:
+        last_update_unix_seconds = int(os.stat('/var/lib/rpm/Packages').st_mtime)
+    except:
+        msg_str = _('Information not available.')
+        _logger.exception(msg_str)
+        return msg_str
+
+
+    NO_UPDATE_MESSAGE = _('No update yet!')
+
+    # Check once again that 'last_update_unix_seconds' is not empty.
+    # You never know !
+    if not last_update_unix_seconds:
+        return NO_UPDATE_MESSAGE
+
+    if int(last_update_unix_seconds) == 1194004800:
+        return NO_UPDATE_MESSAGE
+
+
+    # If we reached here, we have the last-update-time, but it's in
+    # timestamp format.
+    # Using python-subprocess-module (no shell involved), to convert
+    # it into readable date-format; the hack being used (after
+    # removing '-u' option) is the first one mentioned at :
+    # http://www.commandlinefu.com/commands/view/3719/convert-unix-timestamp-to-date
+    environment = os.environ.copy()
+    environment['PATH'] = '%s:/usr/sbin' % (environment['PATH'], )
+
+    last_update_readable_format = {}
+    try:
+        last_update_readable_format = \
+                 subprocess.Popen(['date', '-d',
+                                   '1970-01-01 + ' +
+                                   str(last_update_unix_seconds) +
+                                   ' seconds'],
+                                   stdout=subprocess.PIPE,
+                                   env=environment).stdout.readlines()[0]
+    except:
+        msg_str = _('Information not available.')
+        _logger.exception(msg_str)
+        return msg_str
+
+    if not last_update_readable_format:
+        return _('Information not available.')
+
+    # Everything should be fine (hopefully :-) )
+    return last_update_readable_format
diff --git a/extensions/cpsection/aboutcomputer/view.py b/extensions/cpsection/aboutcomputer/view.py
index f44ca51..ac0b531 100644
--- a/extensions/cpsection/aboutcomputer/view.py
+++ b/extensions/cpsection/aboutcomputer/view.py
@@ -157,6 +157,28 @@ class AboutComputer(SectionView):
         box_software.pack_start(box_wireless_fw, False, True, 0)
         box_wireless_fw.show()
 
+        # Try to fetch "Last Updated On" field from the model.
+        # If the field is not empty, display it.
+        # At present, the field is returned empty, only if "root-access"
+        #    is disabled on the target-machine.
+        last_updated_on_field = self._model.get_last_updated_on_field()
+        if last_updated_on_field:
+            box_last_updated_on = Gtk.HBox(spacing=style.DEFAULT_SPACING)
+            label_last_updated_on  = Gtk.Label(_('Last Updated On:'))
+            label_last_updated_on.set_alignment(1, 0)
+            label_last_updated_on.modify_fg(Gtk.StateType.NORMAL,
+                                   style.COLOR_SELECTION_GREY.get_gdk_color())
+            box_last_updated_on.pack_start(label_last_updated_on, False, True, 0)
+            self._group.add_widget(label_last_updated_on)
+            label_last_updated_on.show()
+            label_last_updated_on_field = \
+                                   Gtk.Label(last_updated_on_field)
+            label_last_updated_on_field.set_alignment(0, 0)
+            box_last_updated_on.pack_start(label_last_updated_on_field, False, True, 0)
+            label_last_updated_on_field.show()
+            box_software.pack_start(box_last_updated_on, False, True, 0)
+            box_last_updated_on.show()
+
         self._vbox.pack_start(box_software, False, True, 0)
         box_software.show()