lib/awestruct/handlers/base_handler.rb in awestructx-0.4.0 vs lib/awestruct/handlers/base_handler.rb in awestructx-0.4.1.x1

@@ -1,7 +1,8 @@
 
 require 'hashery/open_cascade'
+require 'open3'
 
 module Awestruct
   module Handlers
     class BaseHandler
 
@@ -37,16 +38,20 @@
         return @delegate.output_filename if @delegate
         nil
       end
 
       def output_path
-        File.join( File.dirname( relative_source_path ), output_filename )
+        ( p = relative_source_path ) if relative_source_path
+        ( of = output_filename ) if output_filename
+        return File.join( File.dirname( p ), output_filename ) if ( p && of )
+        nil
       end
 
       def output_extension
-        return @delegate.output_extension if @delegate
-        File.extname( output_filename )
+        return @delegate.output_extension if @delegate 
+        return File.extname( output_filename ) unless output_filename.nil?
+        nil
       end
 
       def path
         return @delegate.path if @delegate
         nil
@@ -76,16 +81,30 @@
         return @delegate.content_line_offset if @delegate
         0
       end
 
       def inherit_front_matter(page)
-        @delegate.inherit_front_matter(page) if @delegate
+        return @delegate.inherit_front_matter(page) if @delegate
       end
 
+      def dependencies
+        return @delegate.dependencies if @delegate
+        []
+      end
+
       def to_chain
         chain = [ self ]
         chain += @delegate.to_chain if @delegate
         chain.flatten
+      end
+
+      def execute_shell(command, input=nil)
+        Open3.popen3(command) do |stdin, stdout, _|
+          stdin.puts input unless input.nil?
+          out = stdout.read
+        end
+      rescue Errno::EPIPE
+        ""
       end
 
     end
   end
 end