name: build and deploy docs

on:
  schedule:
    - cron: '0 */2 * * *' # every 2 hours
  push:
  pull_request:

jobs:
  build:
    name: build and deploy docs
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repo
        uses: actions/checkout@v2

      - name: install elan
        run: |
          set -o pipefail
          curl https://raw.githubusercontent.com/leanprover/elan/master/elan-init.sh -sSf | sh -s -- --default-toolchain none -y
          ~/.elan/bin/lean --version
          echo "$HOME/.elan/bin" >> $GITHUB_PATH

      - name: compile doc-gen4
        run: |
          lake build

      - name: Checkout and compile mathlib4
        run: |
          cd ../
          git clone https://github.com/leanprover-community/mathlib4
          cd mathlib4
          lake build

      - name: generate and deploy docs
        run: |
          if [ "$github_repo" = "leanprover/doc-gen4" ] && [ "$github_ref" = "refs/heads/main" ]; then
            deploy="true"
          else
            deploy="false"
          fi
          cd ../
          ./doc-gen4/deploy_docs.sh "mathlib4" "doc-gen4" "$deploy"
        env:
          MATHLIB4_DOCS_KEY: ${{ secrets.MATHLIB4_DOCS_KEY }}
          github_repo: ${{ github.repository }}
          github_ref: ${{ github.ref }}