e2e-esbuild-workflow.yml

on:
  schedule:
  - cron: '0 */4 * * *'
  push:
    branches:
    - master
  pull_request:
    paths:
    - .github/actions/prepare/action.yml
    - .github/workflows/e2e-esbuild-workflow.yml
    - scripts/e2e-setup-ci.sh

name: 'E2E ESBuild'
jobs:
  chore:
    name: 'Validating ESBuild'
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v4

    - uses: ./.github/actions/prepare

    - name: 'Running the integration test'
      run: |
        source scripts/e2e-setup-ci.sh

        yarn init -p
        yarn add -D esbuild ts-node typescript

        echo "require('esbuild').build({bundle: true, format: 'cjs', target: 'node14', entryPoints: ['./src/main.js'], outfile: './dist/bundle.js'})" > build.js

        # Tree-shaking
        echo "export default {input: 'src/main.js', output: {file: 'dist/bundle.js', format: 'cjs'}};" | tee rollup.config.js

        mkdir src
        echo "export function square(x) {return x * x} export function cube(x) {return x * x * x}" | tee src/maths.js
        echo "import {cube} from './maths.js'; console.log(cube(5));" | tee src/main.js

        yarn ts-node --transpile-only build.js
        [[ "$(node dist/bundle.js)" = "125" ]]
        ! cat dist/bundle.js | grep "square"

        # With NPM packages
        yarn add lodash

        echo "import _ from 'lodash';function printHello() { console.log(_.join(['Hello', 'webpack'], ' '))}; printHello();" | tee src/main.js

        yarn ts-node --transpile-only build.js
        [[ "$(node dist/bundle.js)" = "Hello webpack" ]]

        # Make sure we play nicely with esbuild plugins that create virtual modules with resolveDirs
        echo "require('esbuild').build({bundle: true, format: 'cjs', target: 'node14', entryPoints: ['./src/main.js'], outfile: './dist/bundle.js', plugins: [require('./virtualModulePlugin')]})" > build.js
        cat <<- "EOF" | tee virtualModulePlugin.js
          const { resolve, dirname } = require('path');
          module.exports = {
            name: 'virtualModules',
            setup(build) {
              build.onResolve({ filter: /\?virtual$/ }, function({ path, importer }) {
                const resolveDir = dirname(resolve(dirname(importer), path));
                return { path, pluginData: { resolveDir }, namespace: 'virtual-module' };
              });
              build.onLoad({ filter: /\?virtual$/ }, function({ path, pluginData }) {
                const specifier = path.replace(/\?virtual/, '');
                return { resolveDir: pluginData.resolveDir, contents: `export * as virtual from ${JSON.stringify(specifier)}`, loader: 'js' };
              });
            }
          }
        EOF
        echo "import {virtual} from './maths.js?virtual'; console.log(virtual.cube(6));" | tee src/main.js

        yarn ts-node --transpile-only build.js
        [[ "$(node dist/bundle.js)" = "216" ]]