From d1071f131f61e11bed041f7159b619678c3416a1 Mon Sep 17 00:00:00 2001
From: euberdeveloper <euberdeveloper@gmail.com>
Date: Tue, 11 Jun 2024 22:08:12 +0200
Subject: [PATCH] build: add building with esbuild

Signed-off-by: euberdeveloper <euberdeveloper@gmail.com>
---
 build.mjs         | 62 +++++++++++++++++++++++++++++++
 package.json      |  5 ++-
 webpack.config.js | 95 -----------------------------------------------
 3 files changed, 66 insertions(+), 96 deletions(-)
 create mode 100644 build.mjs
 delete mode 100644 webpack.config.js

diff --git a/build.mjs b/build.mjs
new file mode 100644
index 0000000..2e2c9f8
--- /dev/null
+++ b/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__': `"${packageJson.version}"`
+          }
+    });
+}
+
+function generateCommonjsPackageJson() {
+    const packageJsonCommonJs = JSON.stringify({ ...packageJson, type: undefined }, null, 2);
+    fs.writeFileSync('./bundled/lib/commonjs/package.json', packageJsonCommonJs);
+}
+
+await buildModule();
+generateCommonjsPackageJson();
\ No newline at end of file
diff --git a/package.json b/package.json
index e7fd0bb..6cd944d 100644
--- a/package.json
+++ b/package.json
@@ -18,7 +18,10 @@
     "pretranspile": "shx rm -rf dist",
     "transpile": "tsc -p source",
     "prebundle": "shx rm -rf dist bundled",
-    "bundle": "webpack",
+    "bundle:esm": "node build.mjs",
+    "bundle:dts": "dts-bundle-generator -o bundled/lib/commonjs/index.d.ts --project source/tsconfig.json source/lib/index.ts",
+    "bundle": "pnpm bundle:esm && pnpm bundle:dts",
+    "postbundle:dts": "cp bundled/lib/commonjs/index.d.ts bundled/lib/esm/index.d.ts",
     "script:getr:linux": "node scripts/generate-expected-tests-results linux",
     "script:getr:mac": "node scripts/generate-expected-tests-results mac",
     "script:getr:windows": "node scripts/generate-expected-tests-results windows",
diff --git a/webpack.config.js b/webpack.config.js
deleted file mode 100644
index 09e6cdd..0000000
--- a/webpack.config.js
+++ /dev/null
@@ -1,95 +0,0 @@
-const path = require('path');
-const webpack = require('webpack');
-const nodeExternals = require('webpack-node-externals');
-const { BundleDeclarationsWebpackPlugin } = require('bundle-declarations-webpack-plugin');
-
-const libConfig = {
-    target: 'node',
-    mode: 'production',
-    // devtool: 'source-map',
-    entry: {
-        index: './source/lib/index.ts'
-    },
-    resolve: {
-        extensions: ['.ts', '.js']
-    },
-    module: {
-        rules: [
-            {
-                test: /\.ts?$/,
-                include: path.resolve(__dirname, 'source', 'lib'),
-                use: [
-                    {
-                        loader: 'ts-loader'
-                    }
-                ]
-            }
-        ]
-    },
-    plugins: [
-        new BundleDeclarationsWebpackPlugin({
-            entry: "./source/lib/index.ts",
-            outFile: "./index.d.ts"
-        })
-    ],
-    externals: [nodeExternals()],
-    output: {
-        path: path.resolve(__dirname, 'bundled', 'lib'),
-        filename: 'index.js',
-        library: 'dree',
-        libraryTarget: 'umd',
-        globalObject: 'this',
-        umdNamedDefine: true,
-    }
-};
-
-const binConfig = {
-    target: 'node',
-    mode: 'production',
-    entry: {
-        index: './source/bin/index.ts',
-    },
-    resolve: {
-        extensions: ['.ts', '.js']
-    },
-    plugins: [
-        new webpack.BannerPlugin({ banner: '#!/usr/bin/env node', raw: true })
-    ],
-    module: {
-        rules: [
-            {
-                test: /\.ts?$/,
-                include: path.resolve(__dirname, 'source'),
-                use: [
-                    {
-                        loader: 'ts-loader'
-                    },
-                    {
-                        loader: 'shebang-loader'
-                    }
-                ]
-            }
-        ]
-    },
-    externals: [{
-        '../lib/index': {
-            amd: '../lib/index',
-            root: 'dree',
-            commonjs: '../lib/index',
-            commonjs2: '../lib/index'
-        }
-    }, nodeExternals()],
-    output: {
-        path: path.resolve(__dirname, 'bundled', 'bin'),
-        filename: 'index.js',
-        library: 'dree',
-        libraryTarget: 'umd',
-        globalObject: 'this',
-        umdNamedDefine: true,
-    }
-};
-
-module.exports = [
-    libConfig,
-    binConfig
-];