Feat: Enforce pnpm usage

.github/workflows/enforce-pnpm.yml

@@ -0,0 +1,17 @@
+name: Enforce pnpm
+
+on:
+  pull_request:
+  push:
+
+jobs:
+  reject-npm-lockfile:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+      - name: Reject npm lockfiles
+        run: |
+          if git ls-files | grep -E '(^|/)package-lock\.json$'; then
+            echo "Remove package-lock.json and use pnpm."
+            exit 1
+          fi

.npmrc

@@ -1 +1,2 @@
 min-release-age=3 # days
+engine-strict=true

bindings/lingua-wasm/package.json

@@ -3,10 +3,19 @@
   "version": "0.1.0",
   "description": "WASM bindings for Lingua",
   "scripts": {
+    "preinstall": "node -e \"const userAgent = process.env.npm_config_user_agent || ''; if (process.env.INIT_CWD === process.cwd() && !userAgent.includes('pnpm/')) { console.error('Use pnpm in this repo.'); process.exit(1); }\"",
     "build": "pnpm run build:nodejs && pnpm run build:web",
     "build:nodejs": "cd ../../crates/lingua && wasm-pack build --target nodejs --release --out-dir ../../bindings/lingua-wasm/nodejs --no-pack",
     "build:web": "cd ../../crates/lingua && wasm-pack build --target web --release --out-dir ../../bindings/lingua-wasm/web --no-pack"
   },
+  "packageManager": "pnpm@10.33.0",
+  "devEngines": {
+    "packageManager": {
+      "name": "pnpm",
+      "version": ">=10.27.0",
+      "onFail": "error"
+    }
+  },
   "files": [
     "nodejs",
     "web"
@@ -35,6 +44,8 @@
     "./nodejs/lingua.js",
     "./web/lingua.js"
   ],
-  "license": "MIT"
+  "license": "MIT",
+  "engines": {
+    "pnpm": ">=10.27.0"
+  }
 }
-

bindings/typescript/package.json

@@ -3,13 +3,22 @@
   "version": "0.1.0",
   "description": "TypeScript bindings for Lingua - Universal message format for LLM APIs",
   "scripts": {
+    "preinstall": "node -e \"const userAgent = process.env.npm_config_user_agent || ''; if (process.env.INIT_CWD === process.cwd() && !userAgent.includes('pnpm/')) { console.error('Use pnpm in this repo.'); process.exit(1); }\"",
     "build": "rm -rf dist && tsup",
     "generate": "cd ../.. && cargo test --features ts-rs/export",
     "test": "vitest",
     "test:run": "pnpm build && vitest run",
     "typecheck": "tsc --noEmit",
     "prepublishOnly": "pnpm run build"
   },
+  "packageManager": "pnpm@10.33.0",
+  "devEngines": {
+    "packageManager": {
+      "name": "pnpm",
+      "version": ">=10.27.0",
+      "onFail": "error"
+    }
+  },
   "files": [
     "dist"
   ],
@@ -64,5 +73,8 @@
   "peerDependencies": {
     "@anthropic-ai/sdk": "^0.63.0",
     "openai": "^5.22.0"
+  },
+  "engines": {
+    "pnpm": ">=10.27.0"
   }
 }

examples/typescript/package.json

@@ -5,12 +5,26 @@
   "description": "Example demonstrating Lingua universal message format conversion",
   "type": "module",
   "scripts": {
+    "preinstall": "node -e \"const userAgent = process.env.npm_config_user_agent || ''; if (process.env.INIT_CWD === process.cwd() && !userAgent.includes('pnpm/')) { console.error('Use pnpm in this repo.'); process.exit(1); }\"",
     "start": "dotenv -e .env -- tsx index.ts",
     "watch": "dotenv -e .env -- tsx watch index.ts"
   },
+  "packageManager": "pnpm@10.33.0",
+  "engines": {
+    "pnpm": ">=10.27.0",
+    "npm": "please-use-pnpm",
+    "yarn": "please-use-pnpm"
+  },
+  "devEngines": {
+    "packageManager": {
+      "name": "pnpm",
+      "version": ">=10.27.0",
+      "onFail": "error"
+    }
+  },
   "dependencies": {
     "@anthropic-ai/sdk": "^0.63.0",
-    "@braintrust/lingua": "file:../../bindings/typescript",
+    "@braintrust/lingua": "workspace:*",
     "openai": "^5.22.0"
   },
   "devDependencies": {