build: add building with esbuild

Signed-off-by: euberdeveloper <euberdeveloper@gmail.com>

build.mjs

@@ -0,0 +1,62 @@
+import fs from 'node:fs';
+import { build } from 'esbuild';
+import * as importMap from "esbuild-plugin-import-map";
+
+import packageJson from './package.json' assert { type: 'json' };
+
+importMap.load({
+    imports: {
+        './index': '../lib/esm/index.esm.js'
+    }
+});
+
+function getExternalDependencies(allow = []) {
+    const deps = packageJson.dependencies ? Object.keys(packageJson.dependencies).filter(dep => !allow.includes(dep)) : [];
+    const peerDeps = packageJson.peerDependencies ? Object.keys(packageJson.peerDependencies).filter(dep => !allow.includes(dep)) : [];
+    return [...deps, ...peerDeps];
+}
+
+async function buildModule() {
+    const shared = {
+        platform: 'node',
+        entryPoints: ['source/lib/index.ts'],
+        bundle: true,
+        minify: true,
+        treeShaking: true,
+        sourcemap: true
+    };
+
+    await build({
+        ...shared,
+        outfile: 'bundled/lib/commonjs/index.js',
+        format: 'cjs',
+        external: getExternalDependencies()
+    });
+
+    await build({
+        ...shared,
+        outfile: 'bundled/lib/esm/index.esm.js',
+        format: 'esm',
+        external: getExternalDependencies()
+    });
+
+    await build({
+        ...shared,
+        entryPoints: ['source/bin/index.ts'],
+        outfile: 'bundled/bin/index.js',
+        format: 'esm',
+        external: getExternalDependencies(),
+        plugins: [importMap.plugin()],
+        define: {
+            '__VERSION__': `"${packageJson.version}"`
+          }
+    });
+}
+
+function generateCommonjsPackageJson() {
+    const packageJsonCommonJs = JSON.stringify({ ...packageJson, type: undefined }, null, 2);
+    fs.writeFileSync('./bundled/lib/commonjs/package.json', packageJsonCommonJs);
+}
+
+await buildModule();
+generateCommonjsPackageJson();

package.json

@@ -18,7 +18,10 @@
     "pretranspile": "shx rm -rf dist",
     "transpile": "tsc -p source",
     "prebundle": "shx rm -rf dist bundled",
-    "bundle": "webpack",
+    "bundle:esm": "node build.mjs",
+    "bundle:dts": "dts-bundle-generator -o bundled/lib/commonjs/index.d.ts --project source/tsconfig.json source/lib/index.ts",
+    "bundle": "pnpm bundle:esm && pnpm bundle:dts",
+    "postbundle:dts": "cp bundled/lib/commonjs/index.d.ts bundled/lib/esm/index.d.ts",
     "script:getr:linux": "node scripts/generate-expected-tests-results linux",
     "script:getr:mac": "node scripts/generate-expected-tests-results mac",
     "script:getr:windows": "node scripts/generate-expected-tests-results windows",