esbuild.mjs

import esbuild from 'esbuild';

const prod = process.argv.includes('--production');
const watch = process.argv.includes('--watch');

// The shipped extension bundle: CommonJS, `vscode` external.
const extensionOpts = {
  entryPoints: ['src/extension.ts'],
  bundle: true,
  outfile: 'dist/extension.js',
  platform: 'node',
  format: 'cjs',
  target: 'node18',
  external: ['vscode'],
  sourcemap: !prod,
  minify: prod,
  logLevel: 'info',
};

// Pure-logic ESM builds so `node --test` can import the engines without the
// vscode extension host. Not shipped in the .vsix.
const pure = (entry, out) => ({
  entryPoints: [entry],
  bundle: true,
  outfile: out,
  platform: 'node',
  format: 'esm',
  target: 'node18',
  sourcemap: !prod,
  minify: false,
  logLevel: 'info',
});

const builds = [
  extensionOpts,
  pure('src/completion.ts', 'dist/completion.mjs'),
  pure('src/hover.ts', 'dist/hover.mjs'),
  pure('src/diagnostics.ts', 'dist/diagnostics.mjs'),
  pure('src/symbols.ts', 'dist/symbols.mjs'),
  pure('src/navigation.ts', 'dist/navigation.mjs'),
  pure('src/signature.ts', 'dist/signature.mjs'),
];

if (watch) {
  const ctxs = await Promise.all(builds.map((b) => esbuild.context(b)));
  await Promise.all(ctxs.map((c) => c.watch()));
} else {
  await Promise.all(builds.map((b) => esbuild.build(b)));
}