Added MPD block

README.md

@@ -261,6 +261,20 @@ There are no `Processes` block specific configurable options.
 | `buttons` | bool | As above, but for the player control buttons | `true` |
 | `title` | bool | As above, but for the track title | `true` |
 
+#### MPD
+
+**Requires MPD server (mpd or mopidy) and MPC**. Shows currently playing artist and/or track, as well as control buttons. Control buttons use FontAwesome.
+
+`mpd = Barr::Blocks::MPD.new buttons: false`
+
+| Option | Value | Description | Default |
+| --- | --- | --- | --- |
+| `artist` | bool | Set to `true` or `false` to set whether or not the currently playing artist should be shown. | `true` |
+| `buttons` | bool | As above, but for the player control buttons | `true` |
+| `title` | bool | As above, but for the track title | `true` |
+
+_ps. Most of the code for this block was directly taken from the above Rhythmbox
+block so most of the credit should go to them :wink:_
 
 #### Separator
 
@@ -339,7 +353,7 @@ block = Incrementer.new count: 1, align: :r
 
 Here are a few things I have planned
 
-* MPD support
+* ~~MPD support~~
 * Powerline styling options
 * More configuration for existing blocks
 * Some form of Conky support

lib/barr.rb

@@ -13,6 +13,7 @@
 require 'barr/blocks/mem'
 require 'barr/blocks/processes'
 require 'barr/blocks/rhythmbox'
+require 'barr/blocks/mpd'
 require 'barr/blocks/temperature'
 require 'barr/blocks/whoami'
 require 'barr/blocks/separator'

lib/barr/blocks/mpd.rb

@@ -0,0 +1,69 @@
+require 'barr/block'
+
+module Barr
+  module Blocks
+    class MPD < Block
+      attr_reader :view_opts
+
+      def initialize(opts = {})
+        super
+        reassign_deprecated_option opts, :show_artist, :artist
+        reassign_deprecated_option opts, :show_title, :title
+        reassign_deprecated_option opts, :show_buttons, :buttons
+
+        @view_opts = {
+          artist:   opts[:artist].nil? || opts[:artist],
+          buttons: opts[:buttons].nil? || opts[:buttons],
+          title: opts[:title].nil? || opts[:title]
+        }
+      end
+
+      def update!
+        op = []
+
+        if @view_opts[:artist] || @view_opts[:title]
+          if(running?)
+            info = sys_cmd.split(' - ')
+
+            if @view_opts[:artist] && @view_opts[:title]
+              op << info.join(' - ')
+            elsif @view_opts[:artist]
+              op << info[0]
+            elsif @view_opts[:title]
+              op << info[1]
+            end
+          else
+            op << 'None'
+          end
+        end
+
+        op << buttons if @view_opts[:buttons]
+
+        @output = op.join(' ')
+
+      end
+
+      def running?
+        if `pgrep mopidy`.chomp.length != 0
+          true
+        else
+          `pgrep mpd`.chomp.length != 0
+        end
+      end
+
+      def buttons
+        [
+          "%{A:mpc prev:}\uf048%{A}",
+          "%{A:mpc toggle:}\uf04b%{A}",
+          "%{A:mpc next:}\uf051%{A}"
+        ].join(' ').freeze
+      end
+
+      private
+
+      def sys_cmd
+        `mpc | sed -n 1p`.chomp
+      end
+    end
+  end
+end

spec/blocks/mpd_spec.rb

@@ -0,0 +1,74 @@
+# coding: utf-8
+require 'barr/blocks/mpd'
+
+RSpec.describe Barr::Blocks::MPD do
+
+  let(:sys_cmd) { 'Muse - Knights Of Cydonia' }
+
+  before do
+    allow(subject).to receive(:running?).and_return(true)
+    allow(subject).to receive(:sys_cmd).and_return(sys_cmd)
+  end
+
+  describe '#initialize' do
+    it 'sets default options' do
+      expect(subject.view_opts[:artist]).to eq true
+      expect(subject.view_opts[:buttons]).to eq true
+      expect(subject.view_opts[:title]).to eq true
+    end
+  end
+
+  describe '#update!' do
+    context 'with everything enabled' do
+      before { subject.update! }
+
+      it 'sets the output correctly' do
+        expect(subject.output).to eq('Muse - Knights Of Cydonia %{A:mpc prev:}%{A} %{A:mpc toggle:}%{A} %{A:mpc next:}%{A}')
+      end
+    end
+
+    context 'with only artist enabled' do
+      subject { described_class.new title: false, buttons: false }
+
+      before { subject.update! }
+
+      it 'sets the output correctly' do
+        expect(subject.output).to eq('Muse')
+      end
+    end
+
+    context 'with only title enabled' do
+      subject { described_class.new artist: false, buttons: false }
+
+      before { subject.update! }
+
+      it 'sets the output correctly' do
+        expect(subject.output).to eq('Knights Of Cydonia')
+      end
+    end
+
+    context 'with only buttons enabled' do
+      subject { described_class.new title: false, artist: false }
+
+      before { subject.update! }
+
+      it 'sets the output correctly' do
+        expect(subject.output).to eq('%{A:mpc prev:}%{A} %{A:mpc toggle:}%{A} %{A:mpc next:}%{A}')
+      end
+    end
+
+    context 'when nothing is playing' do
+      subject { described_class.new buttons: false }
+
+      before do
+        allow(subject).to receive(:running?).and_return(false)
+
+        subject.update!
+      end
+
+      it 'sets the output correctly' do
+        expect(subject.output).to eq('None')
+      end
+    end
+  end
+end