lib/dassets/source_file.rb in dassets-0.3.0 vs lib/dassets/source_file.rb in dassets-0.4.0

@@ -5,32 +5,31 @@
 
 module Dassets
 
   class SourceFile
 
+    def self.find_by_digest_path(path)
+      # always look at the freshest source list to make sure you get all sources
+      # not just the ones Dassets has cached
+      sources = Dassets::SourceList.new(Dassets.config).map{ |p| self.new(p) }
+
+      # get the last matching one in case two sources have the same digest path
+      # the last one *should* be correct since it was last to be digested
+      sources.select{ |s| s.digest_path == path }.last || NullSourceFile.new(path)
+    end
+
     attr_reader :file_path
 
     def initialize(file_path)
       @file_path = file_path
       @ext_list = File.basename(@file_path).split('.').reverse
     end
 
-    def exists?
-      File.file?(@file_path)
+    def asset_file
+      @asset_file ||= Dassets::AssetFile.new(self.digest_path)
     end
 
-    def digest
-      return if !self.exists?
-
-      Dassets::AssetFile.new(self.digest_path, self.fingerprint).tap do |asset_file|
-        FileUtils.mkdir_p(File.dirname(asset_file.output_path))
-        File.open(asset_file.output_path, "w"){ |f| f.write(self.compiled) }
-        Dassets.digests[self.digest_path] = self.fingerprint
-        Dassets.digests.save!
-      end
-    end
-
     def digest_path
       @digest_path ||= begin
         digest_basename = @ext_list.inject([]) do |digest_ext_list, ext|
           digest_ext_list << Dassets.config.engines[ext].ext(ext)
         end.reject{ |e| e.empty? }.reverse.join('.')
@@ -50,10 +49,22 @@
 
     def fingerprint
       @fingerprint ||= Digest::MD5.new.hexdigest(self.compiled)
     end
 
+    def exists?
+      File.file?(@file_path)
+    end
+
+    def mtime
+      File.mtime(@file_path).httpdate
+    end
+
+    def ==(other_source_file)
+      self.file_path == other_source_file.file_path
+    end
+
     private
 
     def digest_dirname(file_path, source_path)
       slash_path(File.dirname(file_path)).sub(slash_path(source_path), '')
     end
@@ -64,8 +75,21 @@
 
     def read_file(path)
       File.send(File.respond_to?(:binread) ? :binread : :read, path.to_s)
     end
 
+  end
+
+  class NullSourceFile < SourceFile
+    attr_reader :file_path, :digest_path, :compiled, :fingerprint
+    def initialize(digest_path)
+      @file_path = ''
+      @ext_list = []
+      @digest_path = digest_path
+    end
+    def digest; end
+    def ==(other_source_file)
+      self.file_path == other_source_file.file_path
+    end
   end
 
 end