Enable additional instrumentation sources to be defined in "buster-istanbul" config section

README.md

@@ -71,6 +71,9 @@ You will need to handle this yourself. Defaults to `true`.
 This can be helpful if your sources include non-js files that needed to be excluded, such as .html or .json files.
 Consult [node-glob](https://github.com/isaacs/node-glob) for more information on globs.
 
+`sources` is an array of glob paths that will be instrumented in addition to paths supplied in global sources. This
+allows paths to be instrumented, but not automatically loaded. Note: This only has effect in a node environment
+
 Write your buster test as usual.
 
 Example project: [buster-istanbul-demo](https://github.com/kates/buster-istanbul-demo)

lib/buster-istanbul.js

@@ -68,15 +68,32 @@ var setup = {
     coverage.hookRequire();
     if (instrument === false) return;
     group.on('load:sources', function(rs){
-      var rootPath = rs.rootPath
-      rs.forEach(function(resource){
-        var resourcePath = resource.path.replace(/\//, '');
-        var excluded = isExcluded(resourcePath, excludes);
+      var rootPath = rs.rootPath,
+        additional = group.config['buster-istanbul'].sources;
 
+      if (Array.isArray(additional)) {
+          additional.forEach(processAdditional);
+      }
+      rs.forEach(processResource);
+      function processAdditional(a) {
+        glob(a, function (er, files) {
+          if (er) {
+            throw er;
+          } else {
+            files.forEach(processResource);
+          }
+        });
+      }
+      function processResource(resource) {
+        if (typeof resource === 'object') {
+          resource = resource.path;
+        }
+        var resourcePath = resource.replace(/^\//, '');
+        var excluded = isExcluded(resourcePath, excludes);
         if (!excluded) {
           coverage.addInstrumentCandidate(path.join(rootPath, resourcePath));
         }
-      });
+      }
     });
   },
 

package.json

@@ -1,7 +1,7 @@
 {
   "name": "buster-istanbul",
   "description": "buster extension for istanbul code coverage.",
-  "version": "0.1.15",
+  "version": "0.1.16",
   "homepage": "https://github.com/englishtown/buster-istanbul",
   "author": {
     "name": "kates",