name: Release Documentation

permissions:
  contents: read

on:
  workflow_dispatch:
    inputs:
      release-version:
        description: 'Release Version'
        required: true
        type: string
      upload:
        description: 'Upload documentation'
        required: false
        type: boolean

  workflow_call:
    inputs:
      release-version:
        description: 'Release Version'
        required: true
        type: string
      upload:
        description: 'Upload documentation'
        required: false
        type: boolean
    secrets:
      LLVMBOT_WWW_RELEASES_PUSH:
        description: "Secret used to push changes to llvmbot www-releases fork."
        required: false
      WWW_RELEASES_TOKEN:
        description: "Secret used to create a PR with the documentation changes."
        required: false

jobs:
  release-documentation:
    name: Build and Upload Release Documentation
    environment: release
    runs-on: ubuntu-24.04
    env:
      upload: ${{ inputs.upload && !contains(inputs.release-version, 'rc') }}
    steps:
      - name: Checkout LLVM
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
        with:
          persist-credentials: false

      - name: Validate Input
        uses: ./.github/workflows/validate-release-version
        with:
          release-version: ${{ inputs.release-version }}

      - name: Setup Python env
        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
        with:
          cache: 'pip'
          cache-dependency-path: './llvm/docs/requirements.txt'

      - name: Install Dependencies
        run: |
          sudo apt-get update
          sudo apt-get install -y \
              graphviz \
              python3-github \
              ninja-build \
              texlive-font-utils
          pip3 install --require-hashes --user -r ./llvm/docs/requirements.txt

      - name: Build Documentation
        env:
          GITHUB_TOKEN: ${{ github.token }}
          INPUTS_RELEASE_VERSION: ${{ inputs.release-version }}
        run: |
          ./llvm/utils/release/build-docs.sh -release "$INPUTS_RELEASE_VERSION" -no-doxygen

      - name: Create Release Notes Artifact
        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
        with:
          name: release-notes
          path: docs-build/html-export/

      - name: Clone www-releases
        if: env.upload
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
        with:
          repository: ${{ github.repository_owner }}/www-releases
          ref: main
          fetch-depth: 0
          path: www-releases
          persist-credentials: false

      - name: Upload Release Notes
        if: env.upload
        env:
          PUSH_TOKEN: ${{ secrets.LLVMBOT_WWW_RELEASES_PUSH }}
          GH_TOKEN: ${{ secrets.WWW_RELEASES_TOKEN }}
          INPUTS_RELEASE_VERSION: ${{ inputs.release-version }}
        run: |
          mkdir -p www-releases/$INPUTS_RELEASE_VERSION
          mv ./docs-build/html-export/* www-releases/$INPUTS_RELEASE_VERSION
          cd www-releases
          git checkout -b $INPUTS_RELEASE_VERSION
          git add $INPUTS_RELEASE_VERSION
          git config user.email "llvmbot@llvm.org"
          git config user.name "llvmbot"
          git commit -a -m "Add $INPUTS_RELEASE_VERSION documentation"
          git push --force  "https://$PUSH_TOKEN@github.com/llvmbot/www-releases.git" HEAD:refs/heads/$INPUTS_RELEASE_VERSION
          gh pr create -f -B main -H llvmbot:$INPUTS_RELEASE_VERSION