Scan all descending directories for index.js with 'create index'; (fixes #2)

src/utilities/findIndexFiles.js

@@ -0,0 +1,28 @@
+import _ from 'lodash';
+import glob from 'glob';
+import path from 'path';
+import validateTargetDirectory from './validateTargetDirectory';
+
+export default (directoryPath) => {
+    let targetDirectories;
+
+    targetDirectories = glob.sync(path.join(directoryPath, './**/index.js'));
+
+    targetDirectories = _.filter(targetDirectories, (targetDirectoryPath) => {
+        try {
+            validateTargetDirectory(path.dirname(targetDirectoryPath));
+
+            return true;
+        /* eslint-disable no-empty */
+        } catch (error) {
+
+        }
+        /* eslint-enable no-empty */
+
+        return false;
+    });
+
+    targetDirectories = _.map(targetDirectories, path.dirname);
+
+    return targetDirectories;
+};