References Fudge#21, allowing local commands to be run and parsed

lib/gl_tail.rb

@@ -77,6 +77,13 @@ module GlTail
   $PHYSICS = false
 end
 
+begin
+  require 'pty'
+rescue LoadError
+  puts "pty required"
+  exit
+end
+
 $:.unshift(File.dirname(__FILE__)) # this should be obsolete once its a gem
 
 # load our libraries

lib/gl_tail/config/yaml_parser.rb

@@ -38,7 +38,9 @@ def parse_servers
         name = server.shift
         data = server.shift
 
-        if data['source'] && data['source'].downcase == 'local'
+        if data['source'] && data['source'].downcase == 'local' && data['command']
+          src = GlTail::Source::Command.new(@config)
+        elsif data['source'] && data['source'].downcase == 'local'
           src = GlTail::Source::Local.new(@config)
         elsif data['source'] && data['source'].downcase == 'tshark'
           src = GlTail::Source::TShark.new(@config)

lib/gl_tail/sources/command.rb

@@ -0,0 +1,42 @@
+module GlTail
+  module Source
+
+    class Command < Base
+      config_attribute :source, "The type of Source"
+      config_attribute :command, "The command to run"
+
+        def init
+          @lines = []
+          Thread.new do #start thread
+            begin
+              puts "Running command #{command}"
+              PTY.spawn( command ) do |stdin, stdout, pid|
+                begin
+                  # Do stuff with the output here. Just printing to show it works
+                  stdin.each { |line|
+                    @lines.push(line) 
+                  }
+                rescue Errno::EIO
+                  # puts "Errno:EIO error, but this probably just means " +
+                  #                       "that the process has finished giving output"
+                end
+              end
+            rescue PTY::ChildExited
+              puts "Command has exited!"
+            end
+          end #end thread
+        end
+
+        def process
+          unless @lines.length == 0
+            parser.parse(@lines[0]) 
+            @lines.delete_at(0)
+          end
+        end
+
+        def update
+        end
+
+    end
+  end
+end

lib/gl_tail/sources/tshark.rb

@@ -1,4 +1,3 @@
-require 'pty'
 module GlTail
   module Source