add tsup config

tsup.config.ts

@@ -0,0 +1,40 @@
+import { defineConfig } from 'tsup'
+import pkg from './package.json'
+const external = [...Object.keys(pkg.dependencies || {})]
+
+export default defineConfig(() => [
+  {
+    entryPoints: ['src/index.ts'],
+    outDir: 'lib',
+    target: 'node16',
+    format: ['esm', 'cjs'],
+    clean: true,
+    dts: true,
+    minify: true,
+    external,
+  },
+  {
+    entry: { bundle: 'src/index.ts' },
+    outDir: 'lib',
+    format: ['iife'],
+    globalName: 'authorizerdev',
+    clean: false,
+    minify: true,
+    platform: 'browser',
+    dts: false,
+    name: 'authorizer',
+    // esbuild `globalName` option generates `var authorizerdev = (() => {})()`
+    // and var is not guaranteed to assign to the global `window` object so we make sure to assign it
+    footer: {
+      js: 'window.__TAURI__ = authorizerdev',
+    },
+    outExtension({ format, options }) {
+      return {
+        js: '.min.js',
+      }
+    },
+    esbuildOptions(options, ctx) {
+      options.entryNames = 'authorizer'
+    },
+  },
+])