paths.rb in imw-0.2.0

- old
+ new
@@ -1,38 +1,29 @@
 module IMW
-
   class Dataset
     include IMW::Paths
 
-    # A dataset keeps track of its own collection of paths just like
-    # IMW itself.  When an IMW::Dataset is instantiated in a script,
-    # that script's directory becomes the dataset's +self+ path and
-    # the default workflow directories (see IMW::Workflow) are created
-    # within this directory.
+    protected
+    # Sets paths to the workflow directories for this dataset (+ripd+,
+    # +rawd+, +fixd+, +pkgd+) as well as the following paths:
     #
-    # You can change a dataset's paths the same way you can change
-    # IMW's paths; calling +add_path+ and +remove_path+ on the
-    # dataset.
+    # script::
+    #   The path to the file the dataset was initialized in.
     #
-    # To customize this behavior for all future datasets, created a
-    # subclass of IMW::Dataset and override the +set_paths+ method.
-    def paths
-      @paths
-    end
-    
-    protected
-    # Sets the roots of various paths relative to this dataset.
-    def set_root_paths
-      @paths = {}
-      add_path :script, File.expand_path(eval('__FILE__'))      
-      add_path :self,   File.dirname(path_to(:script))
-      IMW::Workflow::DIRS.each do |dir|
-        add_path dir, :self, dir.to_s
+    # root::
+    #   The parent directory of the file the dataset was initialized
+    #   in or the value of the <tt>:root</tt> key in
+    #   IMW::Dataset#options
+    #
+    def set_default_paths
+      add_path :script, File.expand_path(eval('__FILE__'))
+      add_path :root,   options[:root] || File.dirname(path_to(:script))
+      workflow_dirs.each do |dir|
+        add_path dir, :root, dir.to_s
       end
     end
 
     # Overwrite this method to set additional paths for the dataset.
     def set_paths
     end
   end
-    
 end