lyrics: converted in-process plugins to external programs

In-process plugins are very problematic.  It is much easier and
flexible to move the lyrics plugins to external programs, with a
trivial protocol.  This is work in progress, among the things missing:

 - protocol specification, including exit codes
 - plugin installation
 - plugin search directory
 - run-time configuration (currently hard coded)
 - automatic polling (using glib's main loop?)
 - better and more robust error handling

1 files changed, 16 insertions, 0 deletions

diff --git a/lyrics/lyricswiki.rb b/lyrics/lyricswiki.rb
new file mode 100755
index 000000000..39aa4a5b7
--- /dev/null
+++ b/lyrics/lyricswiki.rb
@@ -0,0 +1,16 @@
+#!/usr/bin/env ruby
+#
+# Load lyrics from lyricswiki.org
+#
+# Author: Max Kellermann <max@duempel.org>
+#
+
+require 'uri'
+require 'net/http'
+
+url = "http://lyricwiki.org/api.php" + \
+    "?artist=#{URI.escape(ARGV[0])}&song=#{URI.escape(ARGV[1])}"
+response = Net::HTTP.get(URI.parse(url))
+
+exit(2) unless response =~ /<pre>\s*(.*?)\s*<\/pre>/im
+puts $1