deploy-docs.yml

name: Deploy docs to Vercel

on:
  push:
    branches:
      - main
    paths:
      - "docs/**"
      - "package.json"
      - "pnpm-lock.yaml"
      - "vercel.json"
      - ".github/workflows/deploy-docs.yml"
  workflow_dispatch:

concurrency:
  group: docs-vercel-production
  cancel-in-progress: true

permissions:
  contents: read

env:
  VERCEL_ORG_ID: ${{ secrets.VERCEL_ORG_ID }}
  VERCEL_PROJECT_ID: ${{ secrets.VERCEL_PROJECT_ID }}
  VERCEL_TOKEN: ${{ secrets.VERCEL_TOKEN }}
  VERCEL_ALIAS_DOMAIN: bayes-second-brain.vercel.app

jobs:
  deploy:
    name: Build and deploy docs
    runs-on: ubuntu-latest

    steps:
      - name: Check out repository
        uses: actions/checkout@v4

      - name: Set up pnpm
        uses: pnpm/action-setup@v4

      - name: Set up Node.js
        uses: actions/setup-node@v4
        with:
          node-version: 22
          cache: pnpm

      - name: Install dependencies
        run: pnpm install --frozen-lockfile

      - name: Pull Vercel project settings
        run: pnpm vercel pull --yes --environment=production --token="$VERCEL_TOKEN"

      - name: Build with Vercel
        run: pnpm vercel build --prod --token="$VERCEL_TOKEN"

      - name: Deploy prebuilt output
        id: deploy
        shell: bash
        run: |
          set -euo pipefail
          deploy_output="$(pnpm vercel deploy --prebuilt --prod --token="$VERCEL_TOKEN")"
          echo "$deploy_output"

          deployment_url="$(echo "$deploy_output" | grep -oE 'https://[^[:space:]]+\.vercel\.app' | tail -1)"
          if [ -z "$deployment_url" ]; then
            echo "Could not find deployment URL in Vercel output." >&2
            exit 1
          fi

          echo "deployment_url=$deployment_url" >> "$GITHUB_OUTPUT"

      - name: Update production alias
        run: pnpm vercel alias set "${{ steps.deploy.outputs.deployment_url }}" "$VERCEL_ALIAS_DOMAIN" --token="$VERCEL_TOKEN"