fix: strip package fields w/releasing on npm

Author: ghiscoding

package.json

@@ -47,6 +47,8 @@
     "preview:copy": "node dist/cli.js test-copyin test-copyout --flat --stat",
     "preview:release": "release-it --only-version --dry-run",
     "release": "release-it --only-version",
+    "prepack": "node scripts/prepack.js",
+    "postpack": "node scripts/postpack.js",
     "test": "vitest --watch --config ./vitest.config.mts",
     "test:coverage": "vitest --coverage --config ./vitest.config.mts"
   },
@@ -69,4 +71,4 @@
   "engines": {
     "node": "^20.0.0 || >=22.0.0"
   }
-}
+}

scripts/postpack.js

@@ -0,0 +1,14 @@
+import { copyFile, unlink } from 'node:fs/promises';
+import path from 'node:path';
+
+const packageJsonPath = path.join(process.cwd(), 'package.json');
+const backupPath = path.join(process.cwd(), 'package.json.bak');
+
+async function main() {
+  // Restore the original package.json (with new version)
+  await copyFile(backupPath, packageJsonPath);
+  await unlink(backupPath);
+  console.log('postpack: Restored original package.json');
+}
+
+main();

scripts/prepack.js

@@ -0,0 +1,23 @@
+import { copyFile, readFile, writeFile } from 'node:fs/promises';
+import path from 'node:path';
+
+const fieldsToRemove = ['devDependencies', 'scripts'];
+const packageJsonPath = path.join(process.cwd(), 'package.json');
+const backupPath = path.join(process.cwd(), 'package.json.bak');
+
+async function main() {
+  // Backup the current package.json (with new version)
+  await copyFile(packageJsonPath, backupPath);
+
+  const content = await readFile(packageJsonPath, 'utf8');
+  const pkg = JSON.parse(content);
+
+  for (const field of fieldsToRemove) {
+    delete pkg[field];
+  }
+
+  await writeFile(packageJsonPath, JSON.stringify(pkg, null, 2));
+  console.log('prepack: Stripped dev fields from package.json for npm publish');
+}
+
+main();