BREAKING: ship ESM only (#451)

Author: bartveneman

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "@projectwallace/css-analyzer",
-  "version": "6.0.0",
+  "version": "7.0.0-aplha.0",
   "author": "Bart Veneman",
   "repository": {
     "type": "git",
@@ -13,16 +13,12 @@
   "files": [
     "dist"
   ],
-  "source": "./src/index.js",
+  "main": "./dist/css-analyzer.js",
+  "types": "./dist/index.d.ts",
   "exports": {
     "types": "./dist/index.d.ts",
-    "require": "./dist/analyze-css.umd.cjs",
-    "default": "./dist/analyze-css.js"
+    "default": "./dist/css-analyzer.js"
   },
-  "types": "./dist/index.d.ts",
-  "main": "./dist/analyze-css.umd.cjs",
-  "module": "./dist/analyze-css.js",
-  "unpkg": "./dist/analyze-css.umd.cjs",
   "engines": {
     "node": ">=18.0.0"
   },

package.json

@@ -7,13 +7,16 @@ export default defineConfig({
 	build: {
 		lib: {
 			entry: resolve(__dirname, "src/index.js"),
-			name: "analyzeCss",
-			fileName: "analyze-css",
+			formats: ['es'],
 		},
 		rollupOptions: {
 			// make sure to externalize deps that shouldn't be bundled
 			// into your library
-			external: ["css-tree/parser", "css-tree/walker"],
+			external: [
+				"css-tree/parser",
+				"css-tree/walker",
+				"@bramus/specificity/core",
+			],
 		},
 	},
 	plugins: [