vite.config.ts

import { defineConfig, loadEnv } from 'vite';
import vuePlugin from '@vitejs/plugin-vue';
import path from 'path';
import eslintPlugin from 'vite-plugin-eslint';
import istanbulPlugin from 'vite-plugin-istanbul';

export default ({ mode }) => {
  process.env = { ...process.env, ...loadEnv(mode, process.cwd()) };

  const isTest = process.env.NODE_ENV === 'test';

  const testPlugins = isTest ? [
    istanbulPlugin({
      include: 'src/*',
      exclude: ['node_modules', 'tests'],
      cypress: true,
      checkProd: false,
      // forceBuildInstrument: true, // Should be `true` on "build:test" and `false` on "serve:test"
    }),
  ] : [];

  return defineConfig({
    resolve: {
      alias: {
        '@': path.resolve(__dirname, './src'),
        'mirage-setup': isTest ? path.resolve(__dirname, './tests/mirage/index') : path.resolve(__dirname, './tests/mirage/stub'),
      },
      extensions: ['.mjs', '.js', '.ts', '.jsx', '.tsx', '.json', '.vue'],
    },
    build: {
      outDir: isTest ? 'dist-e2e' : 'dist',
      target: 'esnext',
      minify: false,
    },
    plugins: [
      vuePlugin(),
      eslintPlugin({
        cache: false,
      }),
      ...testPlugins,
    ],
    server: {
      watch: {
        ignored: [
          'coverage/**/*',
          'dist/**/*',
          'dist-e2e/**/*',
          '.nyc_output/**/*',
        ],
      },
    },
    optimizeDeps: {
      exclude: ['coverage'],
    },
  });
};