Merge pull request #3127 from rbnpi/dev

Add compton to daemon (rebased)

Author: samaaron

app/server/ruby/bin/daemon.rb

@@ -157,7 +157,8 @@ def initialize(opts={})
         @scsynth_booter  = nil
         @tau_booter      = nil
         @spider_booter   = nil
-
+        @compton_booter  = nil
+        
         # use a value within the valid range for a 32 bit signed complement integer
         @daemon_token =  rand(-2147483647..2147483647)
 
@@ -167,6 +168,9 @@ def initialize(opts={})
           Util.log "SuperCollider inputs enabled by GUI"
         end
 
+         #start compton to handle transparency (needs to be after Util.open_log)
+        @compton_booter = ComptonBooter.new if Util.os == :raspberry 
+
         # Get a map of port numbers to use
         #
         # Note that the program will safe_exit here
@@ -568,7 +572,7 @@ def restart_tau!
       end
 
       def cleanup_any_running_processes
-        [@spider_booter, @scsynth_booter, @tau_booter].map do |p|
+        [@spider_booter, @scsynth_booter, @tau_booter,  @compton_booter].map do |p|
           Thread.new do
             begin
               p.kill if p
@@ -1029,6 +1033,14 @@ def initialize
       end
     end
 
+    class ComptonBooter < ProcessBooter
+      def initialize
+        cmd = "compton"
+        args = []
+        log_file = nil
+        super(cmd, args, log_file)
+      end
+    end
 
     class ScsynthBooter < ProcessBooter