refactor: simplify configLoader call

src/commitizen.js

@@ -2,15 +2,13 @@
 import * as adapter from './commitizen/adapter';
 import * as cache from './commitizen/cache';
 import commit from './commitizen/commit';
-import * as configLoader from './commitizen/configLoader';
 import init from './commitizen/init';
 import * as staging from './commitizen/staging';
 
 export {
   adapter,
   cache,
   commit,
-  configLoader,
   init,
   staging
 };

src/commitizen/init.js

@@ -1,7 +1,7 @@
 import childProcess from 'child_process';
 import path from 'path';
-import * as configLoader from './configLoader';
 import * as adapter from './adapter';
+import * as configLoader from '../configLoader';
 
 let {
   addPathToAdapterConfig,
@@ -15,6 +15,9 @@ export default init;
 
 const CLI_PATH = path.normalize(path.join(__dirname, '../../'));
 
+/** Configuration sources in priority order. */
+const LOADER_CONFIGS = ['.czrc', '.cz.json', 'package.json'];
+
 /**
  * CZ INIT
  *
@@ -63,7 +66,7 @@ function init (repoPath, adapterNpmName, {
   checkRequiredArguments(repoPath, adapterNpmName);
 
   // Load the current adapter config
-  let adapterConfig = loadAdapterConfig(repoPath);
+  let adapterConfig = configLoader.loader(LOADER_CONFIGS, null, repoPath);
 
   // Get the npm string mappings based on the arguments provided
   let stringMappings = yarn ? getYarnAddStringMappings(dev, exact, force) : getNpmInstallStringMappings(save, saveDev, saveExact, force);
@@ -107,16 +110,3 @@ function checkRequiredArguments (path, adapterNpmName) {
     throw new Error("The adapter's npm name is required when running init.");
   }
 }
-
-/**
- * CONFIG
- * Loads and returns the adapter config at key config.commitizen, if it exists
- */
-function loadAdapterConfig (cwd) {
-  let config = configLoader.load(null, cwd);
-  if (config) {
-    return config;
-  } else {
-
-  }
-}

src/configLoader/loader.js

@@ -13,7 +13,7 @@ export default loader;
 
 /**
  * Get content of the configuration file
- * @param {String} config - partial path to configuration file
+ * @param {String|null} config - partial path to configuration file
  * @param {String} cwd - directory path which will be joined with config argument
  * @return {Object|undefined}
  */