[modules/cmus] Re-add cmus module

Re-add a first version of the cmus module originally contributed by
@paxy97.

Still missing:
* Icon themes (status)
* On-click actions

see #23

bumblebee/modules/cmus.py

@@ -0,0 +1,56 @@
+# pylint: disable=C0111,R0903
+
+"""Displays information about the current song in cmus."""
+
+from collections import defaultdict
+
+import string
+
+import bumblebee.util
+import bumblebee.input
+import bumblebee.output
+import bumblebee.engine
+
+class Module(bumblebee.engine.Module):
+    def __init__(self, engine, config):
+        widgets = [
+            bumblebee.output.Widget(name="cmus.prev"),
+            bumblebee.output.Widget(name="cmus.main", full_text=self.description),
+            bumblebee.output.Widget(name="cmus.next"),
+            bumblebee.output.Widget(name="cmus.shuffle"),
+            bumblebee.output.Widget(name="cmus.repeat"),
+        ]
+        super(Module, self).__init__(engine, config, widgets)
+        self._fmt = self.parameter("format", "{artist} - {title} {position}/{duration}")
+
+    def description(self):
+        return string.Formatter().vformat(self._fmt, (), self._tags)
+
+    def update(self, widgets):
+        self._load_song()
+
+    def _load_song(self):
+        info = ""
+        try:
+            info = bumblebee.util.execute("cmus-remote -Q")
+        except RuntimeError:
+            pass
+        self._tags = defaultdict(lambda: '')
+        for line in info.split("\n"):
+            if line.startswith("status"):
+                self._status = line.split(" ", 2)[1]
+            if line.startswith("tag"):
+                key, value = line.split(" ", 2)[1:]
+                self._tags.update({ key: value })
+            if line.startswith("duration"):
+                self._tags.update({
+                    "duration": bumblebee.util.durationfmt(int(line.split(" ")[1]))
+                })
+            if line.startswith("position"):
+                self._tags.update({
+                    "position": bumblebee.util.durationfmt(int(line.split(" ")[1]))
+                })
+            if line.startswith("set repeat "):
+                self._repeat = False if "false" in line else True
+            if line.startswith("set shuffle "):
+                self._shuffle = False if "false" in line else True

bumblebee/modules/cpu.py

@@ -3,6 +3,8 @@
 """Displays CPU utilization across all CPUs."""
 
 import psutil
+import bumblebee.input
+import bumblebee.output
 import bumblebee.engine
 
 class Module(bumblebee.engine.Module):

bumblebee/output.py

@@ -8,9 +8,10 @@ import uuid
 
 class Widget(object):
     """Represents a single visible block in the status bar"""
-    def __init__(self, full_text):
+    def __init__(self, full_text="", name=""):
         self._full_text = full_text
         self.module = None
+        self.name = name
         self.id = str(uuid.uuid4())
 
     def link_module(self, module):

bumblebee/util.py

@@ -18,4 +18,12 @@ def execute(cmd, wait=True):
         return out.decode("utf-8")
     return None
 
+def durationfmt(duration):
+    minutes, seconds = divmod(duration, 60)
+    hours, minutes = divmod(minutes, 60)
+    res = "{:02d}:{:02d}".format(minutes, seconds)
+    if hours > 0: res = "{:02d}:{}".format(hours, res)
+
+    return res
+
 # vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4

tests/modules/test_cmus.py

@@ -0,0 +1,30 @@
+# pylint: disable=C0103,C0111
+
+import json
+import unittest
+import mock
+
+import bumblebee.input
+from bumblebee.input import I3BarInput
+from bumblebee.modules.cmus import Module
+from tests.util import MockEngine, MockConfig, assertPopen
+
+class TestCmusModule(unittest.TestCase):
+    def setUp(self):
+        self.engine = MockEngine()
+        self.module = Module(engine=self.engine, config={"config": MockConfig()})
+
+    @mock.patch("subprocess.Popen")
+    def test_read_song(self, mock_output):
+        rv = mock.Mock()
+        rv.configure_mock(**{
+            "communicate.return_value": ("out", None)
+        })
+        mock_output.return_value = rv
+        self.module.update(self.module.widgets())
+        assertPopen(mock_output, "cmus-remote -Q")
+
+    def test_widgets(self):
+        self.assertTrue(len(self.module.widgets()), 5)
+
+# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4

tests/util.py

@@ -30,6 +30,10 @@ class MockEngine(object):
     def __init__(self):
         self.input = MockInput()
 
+class MockConfig(object):
+    def get(self, name, default):
+        return default
+
 class MockOutput(object):
     def start(self):
         pass