build: migrate from npm to pnpm package manager

.github/workflows/ci.yml

@@ -14,23 +14,28 @@ jobs:
         with:
           fetch-depth: 0
 
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: 10.15.0
+
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
           node-version: 22.x
+          cache: pnpm
 
-      - name: Install commitlint
-        run: |
-          npm install --save-dev @commitlint/config-conventional @commitlint/cli
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile
 
       - name: Validate PR title
         run: |
-          echo "${{ github.event.pull_request.title }}" | npx commitlint
+          echo "${{ github.event.pull_request.title }}" | pnpm exec commitlint
 
       - name: Validate commits
         if: github.event.pull_request.commits > 1
         run: |
-          npx commitlint --from ${{ github.event.pull_request.base.sha }} --to ${{ github.event.pull_request.head.sha }} --verbose
+          pnpm exec commitlint --from ${{ github.event.pull_request.base.sha }} --to ${{ github.event.pull_request.head.sha }} --verbose
 
   lint:
     name: Lint

.github/workflows/example-angular.yml

@@ -10,17 +10,21 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/cache@v4
+      - uses: pnpm/action-setup@v4
         with:
-          path: ~/.npm
-          key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
-          restore-keys: |
-            ${{ runner.os }}-node-
+          version: 10.15.0
+
+      - name: Install Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: pnpm
+
       - name: build
         run: |
           cd example/angular
-          npm ci
-          npx ng build --prod
+          pnpm install --frozen-lockfile
+          pnpm exec ng build --prod
 
       - uses: ./
         id: vercel-action-staging

.github/workflows/example-nextjs.yml

@@ -11,16 +11,28 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: 10.15.0
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: pnpm
+
       - run: |
-          npm ci
-          npx vercel pull --yes --token=${VERCEL_TOKEN}
+          pnpm install --frozen-lockfile
+          pnpm exec vercel pull --yes --token=${VERCEL_TOKEN}
         working-directory: example/nextjs
         env:
           VERCEL_PROJECT_ID: ${{ secrets.VERCEL_PROJECT_ID_NEXTJS }}
           VERCEL_ORG_ID: ${{ secrets.VERCEL_ORG_ID }}
           VERCEL_TOKEN: ${{ secrets.VERCEL_TOKEN }}
       - run: |
-          npx vercel build
+          pnpm exec vercel build
         if: github.event_name == 'pull_request_target'
         working-directory: example/nextjs
         env:
@@ -51,7 +63,7 @@ jobs:
         env:
           REF: ${{ github.ref }}
       - run: |
-          npx vercel build --prod
+          pnpm exec vercel build --prod
         if: github.event_name == 'push'
         working-directory: example/nextjs
         env:

CLAUDE.md

@@ -6,24 +6,27 @@ This file provides guidance to Claude Code (claude.ai/code) when working with co
 
 ## Project Overview
 
-This is a GitHub Action that deploys projects to Vercel. It's an npm package that integrates with GitHub workflows to automate deployments, providing more control than Vercel's native GitHub integration.
+This is a GitHub Action that deploys projects to Vercel. It's a pnpm-based package that integrates with GitHub workflows to automate deployments, providing more control than Vercel's native GitHub integration.
+
+## Package Manager
+
+This project uses **pnpm** as its package manager. The project is configured as a monorepo with workspaces for the example projects. Make sure to use pnpm commands instead of npm.
 
 ## Essential Commands
 
 ### Development
 ```bash
-npm install              # Install dependencies
-npm start               # Run the action locally (node ./index.js)
-npm run lint            # Run ESLint on index.js
-npm run format          # Format code with Prettier
-npm run format-check    # Check code formatting
-npm test                # Run Jest tests
-npm run all             # Run format, lint, package, and test in sequence
+pnpm install            # Install dependencies
+pnpm start              # Run the action locally (node ./index.js)
+pnpm run lint           # Run ESLint
+pnpm run lint:fix       # Run ESLint and fix issues
+pnpm test               # Run Jest tests
+pnpm run all            # Run lint, package, and test in sequence
 ```
 
 ### Building for Distribution
 ```bash
-npm run package         # Build the action with ncc (outputs to dist/)
+pnpm run package        # Build the action with ncc (outputs to dist/)
 ```
 
 **Important**: The `dist/` folder must be committed when creating releases. This contains the bundled action code that GitHub Actions will execute.

DEVELOP.md

@@ -1,7 +1,7 @@
 # Package
 
 ```bash
-npm run package
+pnpm run package
 ```
 
 # Release