feat: tree path

Author: AndersDJohnson

index.js

@@ -33,7 +33,9 @@ module.exports = function(options) {
     return config.isListForm ? [] : {};
   }
 
-  const results = traverse(config);
+  const params = { treePath: [] };
+
+  const results = traverse(config, params);
   debug('traversal complete', results);
 
   dedupeNonExistent(config.nonExistent);
@@ -81,10 +83,11 @@ module.exports.toList = function(options) {
  * @param  {Config} config
  * @return {Array}
  */
-module.exports._getDependencies = function(config) {
+module.exports._getDependencies = function(config, params) {
   let dependencies;
   const precinctOptions = config.detectiveConfig;
   precinctOptions.includeCore = false;
+  precinctOptions.treePath = params.treePath;
 
   try {
     dependencies = precinct.paperwork(config.filename, precinctOptions);
@@ -136,9 +139,10 @@ module.exports._getDependencies = function(config) {
 
 /**
  * @param  {Config} config
+ * @param  {Object} params
  * @return {Object|Set}
  */
-function traverse(config) {
+function traverse(config, params) {
   let subTree = config.isListForm ? new Set() : {};
 
   debug('traversing ' + config.filename);
@@ -148,7 +152,7 @@ function traverse(config) {
     return config.visited[config.filename];
   }
 
-  let dependencies = module.exports._getDependencies(config);
+  let dependencies = module.exports._getDependencies(config, params);
 
   debug('cabinet-resolved all dependencies: ', dependencies);
   // Prevents cycles by eagerly marking the current file as read
@@ -169,12 +173,17 @@ function traverse(config) {
     const localConfig = config.clone();
     localConfig.filename = d;
 
+    const newParams = {
+      ...params,
+      treePath: [...(params.treePath ? params.treePath : []), config.filename]
+    }
+
     if (localConfig.isListForm) {
-      for (let item of traverse(localConfig)) {
+      for (let item of traverse(localConfig, newParams)) {
         subTree.add(item);
       }
     } else {
-      subTree[d] = traverse(localConfig);
+      subTree[d] = traverse(localConfig, newParams);
     }
   }