[core] restructure to allow PIP packaging

OK - so I have to admit I *hate* the fact that PIP seems to require a
subdirectory named like the library.

But since the PIP package is something really nifty to have (thanks to
@tony again!!!), I updated the codebase to hopefully conform with what
PIP expects. Testruns so far look promising...

bumblebee_status/modules/contrib/pacman.py

@@ -0,0 +1,78 @@
+# pylint: disable=C0111,R0903
+
+"""Displays update information per repository for pacman.
+
+Parameters:
+    * pacman.sum: If you prefere displaying updates with a single digit (defaults to 'False')
+
+Requires the following executables:
+    * fakeroot
+    * pacman
+
+contributed by `Pseudonick47 <https://github.com/Pseudonick47>`_ - many thanks!
+"""
+
+import os
+import threading
+
+import core.module
+import core.widget
+import core.decorators
+
+import util.cli
+import util.format
+
+# list of repositories.
+# the last one should always be other
+repos = ["core", "extra", "community", "multilib", "testing", "other"]
+
+
+def get_pacman_info(widget, path):
+    cmd = "{}/../../bin/pacman-updates".format(path)
+    if not os.path.exists(cmd):
+        cmd = "/usr/share/bumblebee-status/bin/pacman-update"
+    result = util.cli.execute(cmd, ignore_errors=True)
+
+    count = len(repos) * [0]
+
+    for line in result.splitlines():
+        if line.startswith(("http", "rsync")):
+            for i in range(len(repos) - 1):
+                if "/" + repos[i] + "/" in line:
+                    count[i] += 1
+                    break
+            else:
+                result[-1] += 1
+
+    for i in range(len(repos)):
+        widget.set(repos[i], count[i])
+    core.event.trigger("update", [widget.module.id], redraw_only=True)
+
+
+class Module(core.module.Module):
+    @core.decorators.every(minutes=30)
+    def __init__(self, config, theme):
+        super().__init__(config, theme, core.widget.Widget(self.updates))
+
+    def updates(self, widget):
+        if util.format.asbool(self.parameter("sum")):
+            return str(sum(map(lambda x: widget.get(x, 0), repos)))
+        return "/".join(map(lambda x: str(widget.get(x, 0)), repos))
+
+    def update(self):
+        path = os.path.dirname(os.path.abspath(__file__))
+        thread = threading.Thread(target=get_pacman_info, args=(self.widget(), path))
+        thread.start()
+
+    def state(self, widget):
+        weightedCount = sum(
+            map(lambda x: (len(repos) - x[0]) * widget.get(x[1], 0), enumerate(repos))
+        )
+
+        if weightedCount < 10:
+            return "good"
+
+        return self.threshold_state(weightedCount, 100, 150)
+
+
+# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4