include support for baseURL configuration

lib/revvedfinder.js

@@ -9,14 +9,15 @@ var _ = require('lodash');
 //    - a hash mapping files with their revved versions
 //    - a function that will return a list of file matching a given pattern (for example grunt.file.expand)
 //
-var RevvedFinder = module.exports = function (locator) {
+var RevvedFinder = module.exports = function (locator, baseURL) {
   if (_.isFunction(locator)) {
     debug('using function locator');
     this.expandfn = locator;
   } else {
     debug('using file locator %s', locator);
     this.mapping = locator;
   }
+  this.baseURL = baseURL || '';
 };
 
 var regexpQuote = function (str) {
@@ -196,10 +197,12 @@ RevvedFinder.prototype.find = function find(ofile, searchDirs) {
   //   filename = [dirname, filename].join('/');
   // }
 
-  if (absolute) {
+  if (absolute && this.baseURL) {
+    filepath = prefix.substring(1) + filepath; // ignore the first slash
+  } else if (absolute) {
     filepath = prefix + filepath;
   }
 
   debug('Let\'s return %s', filepath);
-  return filepath;
+  return this.baseURL + filepath;
 };

tasks/usemin.js

@@ -122,7 +122,8 @@ module.exports = function (grunt) {
 
     // var locator = options.revmap ? grunt.file.readJSON(options.revmap) : function (p) { return grunt.file.expand({filter: 'isFile'}, p); };
     var locator = getLocator(grunt, options);
-    var revvedfinder = new RevvedFinder(locator);
+    var baseURL = options.baseURL || '';
+    var revvedfinder = new RevvedFinder(locator, baseURL);
     var handler = new FileProcessor(type, patterns, revvedfinder, function (msg) {
       grunt.verbose.writeln(msg);
     }, blockReplacements);

test/test-revvedfinder.js

@@ -223,7 +223,13 @@ describe('RevvedFinder', function () {
           var file = rf.find('../../images/misc/test.png', ['temp/foo', 'dist/bar']);
           assert.equal(file, '../../images/misc/test.34546.png');
         });
-
+        it('should return the corresponding file prepended with a base URL', function () {
+          var rf = new RevvedFinder(helpers.normalize({
+            'dist/images/misc/test.png': 'dist/images/misc/test.34546.png'
+          }), '/static/');
+          var file = rf.find('images/misc/test.png', ['temp', 'dist']);
+          assert.equal(file, '/static/images/misc/test.34546.png');
+        });
       });
       describe('absolute paths', function () {
         it('should return the corresponding file', function () {
@@ -233,8 +239,14 @@ describe('RevvedFinder', function () {
           var file = rf.find('/images/misc/test.png', ['temp', 'dist']);
           assert.equal(file, '/images/misc/test.34546.png');
         });
+        it('should return the corresponding file prepended with a base URL', function () {
+          var rf = new RevvedFinder(helpers.normalize({
+            'dist/images/misc/test.png': 'dist/images/misc/test.34546.png'
+          }), '/static/');
+          var file = rf.find('/images/misc/test.png', ['temp', 'dist']);
+          assert.equal(file, '/static/images/misc/test.34546.png');
+        });
       });
     });
-
   });
 });