move clean logic to Application

lib/rscons.rb

@@ -57,25 +57,6 @@ module Rscons
       @application ||= Application.new
     end
 
-    # Remove all generated files.
-    #
-    # @return [void]
-    def clean
-      cache = Cache.instance
-      # remove all built files
-      cache.targets.each do |target|
-        FileUtils.rm_f(target)
-      end
-      # remove all created directories if they are empty
-      cache.directories.sort {|a, b| b.size <=> a.size}.each do |directory|
-        next unless File.directory?(directory)
-        if (Dir.entries(directory) - ['.', '..']).empty?
-          Dir.rmdir(directory) rescue nil
-        end
-      end
-      cache.clear
-    end
-
     # Return whether the given path is an absolute filesystem path.
     #
     # @param path [String] the path to examine.

lib/rscons/application.rb

@@ -29,11 +29,34 @@ module Rscons
     #   Process exit code (0 on success).
     def run(operation)
       # TODO
+      case operation
+      when "clean"
+        clean
+      end
       0
     end
 
     private
 
+    # Remove all generated files.
+    #
+    # @return [void]
+    def clean
+      cache = Cache.instance
+      # remove all built files
+      cache.targets.each do |target|
+        FileUtils.rm_f(target)
+      end
+      # remove all created directories if they are empty
+      cache.directories.sort {|a, b| b.size <=> a.size}.each do |directory|
+        next unless File.directory?(directory)
+        if (Dir.entries(directory) - ['.', '..']).empty?
+          Dir.rmdir(directory) rescue nil
+        end
+      end
+      cache.clear
+    end
+
     # Determine the number of threads to use by default.
     #
     # @return [Integer]