CC-2016: Rearrange python scripts for reusability

-moved files

python_apps/pypo/scripts/ls_lib.liq

@@ -0,0 +1,64 @@
+def notify(m)
+  system("./notify.sh --data='#{!pypo_data}' --media-id=#{m['schedule_table_id']}")
+  print("./notify.sh --data='#{!pypo_data}' --media-id=#{m['schedule_table_id']}")
+end
+
+# A function applied to each metadata chunk
+def append_title(m) =  
+  if !stream_metadata_type == 1 then
+    [("artist","#{!show_name} - #{m['title']}")]
+  #elsif !stream_metadata_type == 2 then
+  #  [("artist", ""), ("title", !show_name)]
+  elsif !stream_metadata_type == 2 then
+    [("artist",!station_name), ("title", !show_name)]
+  else
+    []
+  end
+end
+
+def crossfade(s)
+  #duration is automatically overwritten by metadata fields passed in
+  #with audio
+  s = fade.in(type="log", duration=0., s)
+  s = fade.out(type="log", duration=0., s)
+  fader = fun (a,b) -> add(normalize=false,[b,a])
+  cross(fader,s)
+end
+
+# Define a transition that fades out the
+# old source, adds a single, and then 
+# plays the new source
+def to_live(old,new) = 
+  # Fade out old source
+  old = fade.final(old)
+  # Compose this in sequence with
+  # the new source
+  sequence([old,new])
+end
+
+# Add a skip function to a source
+# when it does not have one
+# by default
+def add_skip_command(s)
+ # A command to skip
+  def skip(_)
+    # get playing (active) queue and flush it
+    l = list.hd(server.execute("queue.secondary_queue"))
+    l = string.split(separator=" ",l)
+    list.iter(fun (rid) -> ignore(server.execute("queue.ignore #{rid}")), l)
+
+    l = list.hd(server.execute("queue.primary_queue"))
+    l = string.split(separator=" ", l)
+    if list.length(l) > 0 then
+      source.skip(s)
+      "Skipped"
+    else
+      "Not skipped"
+    end
+  end
+ # Register the command:
+ server.register(namespace="source",
+                 usage="skip",
+                 description="Skip the current song.",
+                 "skip",skip)
+end