[modules/pacman] Re-enable pacman update information

see #23

bumblebee/modules/pacman.py

@@ -0,0 +1,60 @@
+# pylint: disable=C0111,R0903
+
+"""Displays update information per repository for pacman."
+"""
+
+import os
+import bumblebee.input
+import bumblebee.output
+import bumblebee.engine
+
+class Module(bumblebee.engine.Module):
+    def __init__(self, engine, config):
+        super(Module, self).__init__(engine, config,
+            bumblebee.output.Widget(full_text=self.updates)
+        )
+        self._count = 0
+        self._out = ""
+
+    def updates(self, widget):
+        return self._out
+
+    def update(self, widgets):
+        path = os.path.dirname(os.path.abspath(__file__))
+        if self._count == 0:
+            self._out = "?/?/?/?"
+            try:
+                result = bumblebee.util.execute("{}/../../bin/pacman-updates".format(path))
+                self._community = 0
+                self._core = 0
+                self._extra = 0
+                self._other = 0
+
+                for line in result.splitlines():
+                    if line.startswith("http"):
+                        if "community" in line:
+                            self._community += 1
+                            continue
+                        if "core" in line:
+                            self._core += 1;
+                            continue
+                        if "extra" in line:
+                            self._extra += 1
+                            continue
+                        self._other += 1
+                self._out = str(self._core)+"/"+str(self._extra)+"/"+str(self._community)+"/"+str(self._other)
+            except RuntimeError:
+                self._out = "?/?/?/?"
+ 
+        # TODO: improve this waiting mechanism a bit
+        self._count += 1
+        self._count = 0 if self._count > 300 else self._count
+
+    def sumUpdates(self):
+        return self._core + self._community + self._extra + self._other 
+    
+    def state(self, widget):
+        if self.sumUpdates() > 0:
+            return "critical"
+
+# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4