fix: throw error if config file is not parsable

Author: Harrison Ifeanyichukwu

bin/index.js

@@ -1,6 +1,7 @@
 #!/usr/bin/env node
 const args = require('args');
-const { resolve } = require('path');
+const { existsSync } = require('fs');
+const { join } = require('path');
 const process = require('process');
 
 const parseBoolean = (value) => {
@@ -88,12 +89,12 @@ args.options([
 
 const run = () => {
  const entryPath = process.cwd();
- const configFilePath = resolve(entryPath, 'rollup.config.js');
+ const configFilePath = join(entryPath, 'rollup.config.js');
 
  // inspect package.json file
  let pkgFile;
  try {
- pkgFile = require(resolve(entryPath, 'package.json'));
+ pkgFile = require(join(entryPath, 'package.json'));
  } catch (ex) {
  console.error(
  'Build failed. cannot locate a package.json file in entry directory'
@@ -106,7 +107,7 @@ const run = () => {
  let camelCase;
 
  try {
- moduleExports = require(resolve(
+ moduleExports = require(join(
  __dirname,
  pkgFile.name === '@teclone/rollup-all'
  ? '../temp/index.js'
@@ -122,9 +123,9 @@ const run = () => {
 
  // resolve config
  let config = {};
- try {
+ if (existsSync(configFilePath)) {
  config = require(configFilePath);
- } catch (ex) {
+ } else {
  console.log(
  'Proceeding with no custom defined build config file (rollup.config.js)'
  );