Add directory path to sourcemap entries, fixes #10

Author: jonjaques

lib/index.js

@@ -36,10 +36,14 @@ function typescriptLoader(text) {
   this._compiler.typeScriptWebpackHost.emit(resolver, filename, text)
     .then(function(output) {
       var result = findResultFor(output, filename);
+      var sourceFilename = loaderUtils.getRemainingRequest(this);
+      var current = loaderUtils.getCurrentRequest(this);
       if (result.text === undefined) {
         throw new Error('no output found for ' + filename);
       }
       var sourceMap = JSON.parse(result.sourceMap);
+      sourceMap.sources = [sourceFilename];
+      sourceMap.file = current;
       sourceMap.sourcesContent = [text];
       cb(null, result.text, sourceMap);
     }.bind(this))