From 4dd3d423c5277369df61d69062c0597fc78a25d6 Mon Sep 17 00:00:00 2001
From: Thomas Berger <thomas.berger@1und1.de>
Date: Fri, 17 Feb 2017 15:24:21 +0100
Subject: [PATCH] add support for autoExtensions

this allows us to use gulp-include with some sprockets based projects, like bootstrap-sass
---
 README.md |  5 +++++
 index.js  | 18 +++++++++++++++---
 2 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/README.md b/README.md
index fd2a31e..46015ed 100644
--- a/README.md
+++ b/README.md
@@ -41,6 +41,11 @@ gulp.task("default", ["scripts"]);
   eg: `"js"` or `["js", "coffee"]`
   * If set, all directives that does not match the extension(s) will be ignored  
 
+- `autoExtensions` (optional)
+  * Takes a `String` or an `Array` of extensions.  
+  eg: `"js"` or `["js", "coffee"]`
+  * If set, the extensions will be added to the search pattern when looking for files  
+  eg: `//= require ./somescript` will resolve to `./somescript{,.js,.coffee}`
 
 - `includePaths` (optional)
   * Takes a `String` or an `Array` of paths.  
diff --git a/index.js b/index.js
index b82001b..6348c96 100644
--- a/index.js
+++ b/index.js
@@ -15,7 +15,8 @@ module.exports = function (params) {
   var extensions = null, // The extension to be searched after
       includedFiles = [], // Keeping track of what files have been included
       includePaths = false, // The paths to be searched
-      hardFail = false; // Throw error when no match
+      hardFail = false, // Throw error when no match
+      autoExtensions = false; // additional extensions added to the filename for search
 
   // Check for includepaths in the params
   if (params.includePaths) {
@@ -37,6 +38,11 @@ module.exports = function (params) {
     extensions = typeof params.extensions === 'string' ? [params.extensions] : params.extensions;
   }
 
+  if (params.autoExtensions) {
+    autoExtensions = typeof params.autoExtensions === 'string' ? [params.autoExtensions] : params.autoExtensions;
+    autoExtensions = autoExtensions.map(function (ext) { return '.' + ext })
+  }
+
   function include(file, callback) {
     if (file.isNull()) {
       return callback(null, file);
@@ -136,22 +142,28 @@ module.exports = function (params) {
       // SEARCHING STARTS HERE
       // Split the directive and the path
       var includeType = split[0];
+      var fileName = split[1];
 
       // Use glob for file searching
       var fileMatches = [];
       var includePath = "";
 
+      // add the extensions from autoExtensions if any
+      if (autoExtensions != false) {
+        fileName = fileName + '{,' + autoExtensions.join(',') + '}';
+      }
+
       if (includePaths != false) {
         // If includepaths are set, search in those folders
         for (var y = 0; y < includePaths.length; y++) {
-          includePath = includePaths[y] + "/" + split[1];
+          includePath = includePaths[y] + "/" + fileName;
 
           var globResults = glob.sync(includePath, {mark: true});
           fileMatches = fileMatches.concat(globResults);
         }
       }else{
         // Otherwise search relatively
-        includePath = relativeBasePath + "/" + split[1];
+        includePath = relativeBasePath + "/" + fileName;
         var globResults = glob.sync(includePath, {mark: true});
         fileMatches = globResults;
       }