[modules/apt] Change modules to use aptitude instead apt notifier

Modules.md

@@ -2,7 +2,7 @@
 |Name |Description |
 |-----|------------|
 |amixer |get volume level<br><br> |
-|apt |Displays APT package update information (<toupgrade>/<security>)<br>Requires the following debian packages:<br>    * update-notifier-common<br><br> |
+|apt |Displays APT package update information (<toupgrade>/<toremove>)<br>Requires the following debian packages:<br>    * aptitude<br><br>    * python-parse<br><br> |
 |arch-update |Check updates to Arch Linux.<br> |
 |battery-upower |Displays battery status, remaining percentage and charging information.<br><br>Parameters:<br>    * battery-upower.warning      : Warning threshold in % of remaining charge (defaults to 20)<br>    * battery-upower.critical     : Critical threshold in % of remaining charge (defaults to 10)<br>    * battery-upower.showremaining : If set to true (default) shows the remaining time until the batteries are completely discharged<br> |
 |battery |Displays battery status, remaining percentage and charging information.<br><br>Parameters:<br>    * battery.device     : Comma-separated list of battery devices to read information from (defaults to auto for auto-detection)<br>    * battery.warning    : Warning threshold in % of remaining charge (defaults to 20)<br>    * battery.critical   : Critical threshold in % of remaining charge (defaults to 10)<br>    * battery.showdevice : If set to "true", add the device name to the widget (defaults to False)<br>    * battery.decorate   : If set to "false", hides additional icons (charging, etc.) (defaults to True)<br> |

bumblebee/modules/apt.py

@@ -1,19 +1,30 @@
 # pylint: disable=C0111,R0903
 
-"""Displays APT package update information (<toupgrade>/<security>)
+"""Displays APT package update information (<to upgrade>/<to remove >)
 Requires the following debian packages:
-    * update-notifier-common
+    * python-parse
+    * aptitude
 
 """
 
 import threading
+from parse import *
 
 import bumblebee.util
 import bumblebee.input
 import bumblebee.output
 import bumblebee.engine
 
-APT_CHECK_PATH = "/usr/lib/update-notifier/apt_check.py"
+APT_CHECK_PATH = ("aptitude full-upgrade --simulate --assume-yes")
+PATTERN = "{} packages upgraded, {} newly installed, {} to remove and {} not upgraded."
+
+def parse_result(to_parse):
+    # We want to line with the iforamtion about package upgrade
+    line_to_parse = to_parse.split("\n")[-4]
+
+    result = parse(PATTERN, line_to_parse)
+
+    return int(result[0]), int(result[2])
 
 def get_apt_check_info(widget):
     try:
@@ -23,22 +34,16 @@ def get_apt_check_info(widget):
         widget.set("error", "unable to query APT: {}".format(e))
         return
 
-    all_pkg = 0
+    to_upgrade = 0
-    security = 0
+    to_remove = 0
-
-    res_array = res.split(';')
-
     try:
-        s = res_array[0]
+        to_upgrade, to_remove = parse_result(res)
-        if s.isdigit(): all_pkg = int(s)
+    except  e:
+        widget.set("error", "parse error: {}".format(e))
+        return
 
-        s = res_array[1]
+    widget.set("to_upgrade", to_upgrade)
-        if s.isdigit(): security = int(s)
+    widget.set("to_remove", to_remove)
-    except:
-        pass
-
-    widget.set("all_pkg", all_pkg)
-    widget.set("security", security)
 
 class Module(bumblebee.engine.Module):
     def __init__(self, engine, config):
@@ -51,7 +56,7 @@ class Module(bumblebee.engine.Module):
         result = []
         if widget.get("error"):
             return widget.get("error")
-        for t in ["all_pkg", "security"]:
+        for t in ["to_upgrade", "to_remove"]:
             result.append(str(widget.get(t, 0)))
         return "/".join(result)
 
@@ -62,9 +67,9 @@ class Module(bumblebee.engine.Module):
     def state(self, widget):
         cnt = 0
         ret = "good"
-        for t in ["all_pkg", "security"]:
+        for t in ["to_upgrade", "to_remove"]:
             cnt += widget.get(t, 0)
-        if cnt > 50 or widget.get("security", 0) > 0:
+        if cnt > 50:
             ret = "critical"
         elif cnt > 0:
             ret = "warning"