vscode-helix/build.mjs

const production = process.argv[2] === '--production';
import esbuild from 'esbuild';

const watch = process.argv[2] === '--watch';
const context = await esbuild
  .context({
    entryPoints: ['./src/index.ts'],
    bundle: true,
    outdir: 'dist',
    external: ['vscode'],
    format: 'cjs',
    sourcemap: !production,
    minify: production,
    platform: 'node',
    target: 'ES2022',
    plugins: [
      {
        name: 'watch',
        setup(build) {
          build.onEnd(() => {
            if (watch) console.log('build finished');
          });
          build.onStart(() => {
            if (watch) console.log('building');
          });
        },
      },
    ],
  })
  .catch((e) => {
    console.error(e);
    process.exit(1);
  });

if (watch) {
  await context.watch();
} else {
  context.rebuild();
  context.dispose();
}