build: customize package process

Author: metonym

.github/workflows/release.yml

@@ -24,4 +24,6 @@ jobs:
         # https://docs.npmjs.com/generating-provenance-statements
         run: |
           npm install --force
+          npm run package
+          cd package
           npm publish --provenance --access public

.gitignore

@@ -4,3 +4,4 @@
 /test-results/
 /playwright-report/
 /playwright/.cache/
+/package

package.json

@@ -5,26 +5,27 @@
   "description": "Detect if an element is in the viewport using the Intersection Observer API",
   "author": "Eric Liu (https://github.com/metonym)",
   "type": "module",
-  "svelte": "./src/index.js",
-  "main": "./src/index.js",
-  "types": "./src/index.d.ts",
+  "svelte": "./index.js",
+  "main": "./index.js",
+  "types": "./index.d.ts",
   "exports": {
     ".": {
-      "types": "./types/index.d.ts",
-      "svelte": "./src/index.js"
+      "types": "./index.d.ts",
+      "svelte": "./index.js"
     },
-    "./src/*.svelte": {
-      "types": "./src/*.svelte.d.ts",
-      "import": "./src/*.svelte"
+    "./*.svelte": {
+      "types": "./*.svelte.d.ts",
+      "import": "./*.svelte"
     },
-    "./src/*": {
-      "types": "./src/*.d.ts",
-      "import": "./src/*.js"
+    "./*": {
+      "types": "./*.d.ts",
+      "import": "./*.js"
     }
   },
   "scripts": {
     "dev": "rollup -cw",
     "build": "rollup -c",
+    "package": "node scripts/npm-package",
     "test:types": "svelte-check --workspace tests",
     "test:e2e": "playwright test",
     "format": "prettier --write '.'"
@@ -54,9 +55,6 @@
     "lazy-loading",
     "conditional"
   ],
-  "files": [
-    "src"
-  ],
   "prettier": {
     "plugins": [
       "prettier-plugin-svelte"

scripts/npm-package.js

@@ -0,0 +1,34 @@
+// @ts-check
+
+import fs from "node:fs";
+import fsp from "node:fs/promises";
+
+(async () => {
+  console.time("package");
+
+  if (fs.existsSync("./package")) {
+    await fsp.rm("./package", { recursive: true });
+  }
+
+  await fsp.mkdir("./package");
+
+  await fsp.cp("./src", "./package", { recursive: true });
+  await fsp.copyFile("./package.json", "./package/package.json");
+  await fsp.copyFile("./README.md", "./package/README.md");
+  await fsp.copyFile("./LICENSE", "./package/LICENSE");
+
+  const pkgJson = JSON.parse(
+    fs.readFileSync("./package/package.json", "utf-8"),
+  );
+
+  delete pkgJson.scripts;
+  delete pkgJson.devDependencies;
+  delete pkgJson.prettier;
+
+  await fsp.writeFile(
+    "./package/package.json",
+    JSON.stringify(pkgJson, null, 2),
+  );
+
+  console.timeEnd("package");
+})();