From a74269b529606746489c7757e0d31ec2e1214b14 Mon Sep 17 00:00:00 2001
From: Bruno Baia <brbaia@gmail.com>
Date: Thu, 9 Jul 2015 11:21:11 +0200
Subject: [PATCH] Fix revved regex to support extensionless paths

I have an anchor with href='/admin'. I also have a file 'admin.css' in my assets directory.
After running `usemin`, it changed to '/admin.css' because revedRx regex in method `RevvedFinder.prototype.getCandidatesFromFS` matches.
Why ? Because css extension starts with an hex character.
---
 lib/revvedfinder.js       | 7 ++++---
 test/test-revvedfinder.js | 8 ++++++++
 2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/lib/revvedfinder.js b/lib/revvedfinder.js
index 29e33e1..6eff823 100644
--- a/lib/revvedfinder.js
+++ b/lib/revvedfinder.js
@@ -50,18 +50,19 @@ RevvedFinder.prototype.getCandidatesFromMapping = function (file, searchPaths) {
 
 RevvedFinder.prototype.getCandidatesFromFS = function (file, searchPaths) {
   var extname = path.extname(file);
+  var regExtname = extname || '.';
   var basename = path.basename(file, extname);
   var dirname = path.dirname(file);
   var hex = '[0-9a-fA-F]+';
   var regPrefix = '(' + hex + '\\.' + regexpQuote(basename) + ')';
-  var regSuffix = '(' + regexpQuote(basename) + '\\.' + hex + regexpQuote(extname) + ')';
+  var regSuffix = '(' + regexpQuote(basename) + '\\.' + hex + regexpQuote(regExtname) + ')';
   var revvedRx = new RegExp(regPrefix + '|' + regSuffix);
   var candidates = [];
   var self = this;
 
   searchPaths.forEach(function (sp) {
-    var searchString = path.join(sp, dirname, basename + '.*' + extname);
-    var prefixSearchString = path.join(sp, dirname, '*.' + basename + extname);
+    var searchString = path.join(sp, dirname, basename + '.*' + regExtname);
+    var prefixSearchString = path.join(sp, dirname, '*.' + basename + regExtname);
 
     if (searchString.indexOf('#') === 0) {
       // patterns starting with # are treated as comments by the glob implementation which returns undefined,
diff --git a/test/test-revvedfinder.js b/test/test-revvedfinder.js
index 5977b88..2a5b6c6 100644
--- a/test/test-revvedfinder.js
+++ b/test/test-revvedfinder.js
@@ -143,6 +143,14 @@ describe('RevvedFinder', function () {
         assert.equal(rfile, 'fred.html');
       });
 
+      it('should support extensionless paths', function () {
+        var rf = new RevvedFinder(function () {
+          return ['path.css'];
+        });
+        var rfile = rf.find('path', '.');
+        assert.equal(rfile, 'path');
+      });
+
       // it('should restrict to the furnished subdirectories', function () {
       //   var rf = new RevvedFinder(function (pattern) {
       //     assert.equal(pattern, '{temp,dist}/**/*fred\\.html');