feat(core): add babel configuration file

Author: 0vidiu

src/config/dependencies.ts

@@ -8,6 +8,8 @@
 export default {
   devDependencies: {
     '@babel/core': '^7.0.0-beta.47',
+    '@babel/plugin-proposal-object-rest-spread': '^7.0.0-beta.47',
+    '@babel/preset-env': '^7.0.0-beta.47',
     'babel-eslint': '^8.2.3',
     'babel-loader': '^8.0.0-beta.3',
     'eslint': '^4.19.1',

src/tasks/config.ts

@@ -16,14 +16,14 @@ import { existsAsync } from '../util/functions';
 
 // Custom messages
 const STRINGS = {
-  CONFIG_EXISTS: 'ESLint config file already exists',
-  COPYING_CONFIG: 'Copying ESLint config file to',
+  CONFIG_EXISTS: 'Config file already exists',
+  COPYING_CONFIG: 'Copying config files',
 };
 
 
 // Custom error messages
 const ERRORS = {
-  COPY_FAILED: 'Copying ESLint config file failed',
+  COPY_FAILED: 'Copying config file failed',
 };
 
 
@@ -33,27 +33,37 @@ const ERRORS = {
  * @param pluginProvider Plugin utilities provider
  */
 async function taskFn(done: any, { logger, paths, gulp }: any = {}): Promise<any> {
-  const configFilename = '.eslintrc';
+  const configFilenames: string[] = [
+    '.eslintrc',
+    '.babelrc',
+  ];
+
   const templateDir: string = path.join(paths.cwd, '/node_modules/@frontvue/plugin-js/template');
   const dest: string = path.join(paths.cwd);
 
   // Perform a directory check to avoid overwriting existing files
-  let isCopied: boolean = false;
+  let areCopied: boolean[] = [];
   try {
-    isCopied = await existsAsync(path.join(dest, configFilename));
+    for (const file of configFilenames) {
+      areCopied = [...areCopied, await existsAsync(path.join(dest, file))];
+    }
   } catch (error) {
     return Promise.reject(new Error(`${ERRORS.COPY_FAILED} ${error.message}`));
   }
 
   // If the config file are already copied, or folder already exists, exit
-  if (isCopied) {
+  if (areCopied.every(item => item)) {
     logger.debug(STRINGS.CONFIG_EXISTS);
     return Promise.resolve();
   }
 
-  logger.debug(`${STRINGS.COPYING_CONFIG} ${chalk.cyan.bold(path.join(dest, configFilename))}`);
+  const configSourcePaths = configFilenames.map(filename => path.join(templateDir, filename));
+
+  logger.debug(
+    `${STRINGS.COPYING_CONFIG} ${chalk.cyan.bold(configFilenames.join(', '))} to ${chalk.cyan.bold(dest)}`,
+  );
   return new Promise((resolve, reject) => {
-    gulp.src(path.join(templateDir, configFilename), { dot: true })
+    gulp.src(configSourcePaths, { dot: true })
       // Initialize gulp-plumber to prevent process termination in case of error
       .pipe(plumber({ errorHandler: error => logger.fatal(error.message) }))
       .on('error', (error: any) => {

template/.babelrc

@@ -0,0 +1,8 @@
+{
+  "presets": [
+    "@babel/preset-env"
+  ],
+  "plugins": [
+    "@babel/plugin-proposal-object-rest-spread"
+  ]
+}