name: Release Binaries

on:
  workflow_dispatch:
    inputs:
      release-version:
        description: 'Release Version'
        required: true
        type: string
      upload:
        description: 'Upload binaries to the release page'
        required: true
        default: false
        type: boolean

  workflow_call:
    inputs:
      release-version:
        description: 'Release Version'
        required: true
        type: string
      upload:
        description: 'Upload binaries to the release page'
        required: true
        default: false
        type: boolean
  schedule:
    # * is a special character in YAML so you have to quote this string
    - cron:  '0 8 1 * *'

permissions:
  contents: read # Default everything to read-only

jobs:
  prepare:
    name: Prepare to build binaries
    runs-on: ubuntu-22.04
    if: github.repository == 'llvm/llvm-project'
    outputs:
      release-version: ${{ steps.vars.outputs.release-version }}
      ref: ${{ steps.vars.outputs.ref }}
      upload: ${{ steps.vars.outputs.upload }}

    steps:
    - name: Checkout LLVM
      uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1

    - name: Install Dependencies
      run: |
        pip install -r ./llvm/utils/git/requirements.txt

    - name: Check Permissions
      env:
        GITHUB_TOKEN: ${{ github.token }}
        USER_TOKEN: ${{ secrets.RELEASE_TASKS_USER_TOKEN }}
      run: |
        ./llvm/utils/release/./github-upload-release.py --token "$GITHUB_TOKEN" --user ${{ github.actor }} --user-token "$USER_TOKEN" check-permissions

    - name: Collect Variables
      id: vars
      # In order for the test-release.sh script to run correctly, the LLVM
      # source needs to be at the following location relative to the build dir:
      # | X.Y.Z-rcN | ./rcN/llvm-project
      # | X.Y.Z     | ./final/llvm-project
      #
      # We also need to set divergent flags based on the release version:
      # | X.Y.Z-rcN | -rc N -test-asserts
      # | X.Y.Z     | -final
      run: |
        tag="${{ github.ref_name }}"
        trimmed=$(echo ${{ inputs.release-version }} | xargs)
        [[ "$trimmed" != "" ]] && tag="llvmorg-$trimmed"
        if [ "$tag" = "main" ]; then
          # If tag is main, then we've been triggered by a scheduled so pass so
          # use the head commit as the tag.
          tag=`git rev-parse HEAD`
        fi
        if [ -n "${{ inputs.upload }}" ]; then
          upload="${{ inputs.upload }}"
        else
          upload="false"
        fi
        bash .github/workflows/set-release-binary-outputs.sh "$tag" "$upload"

  build-stage1-linux:
    name: "Build Stage 1 Linux"
    needs: prepare
    runs-on: ubuntu-22.04
    if: github.repository == 'llvm/llvm-project'
    steps:
    - name: Checkout LLVM
      uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
      with:
        ref: ${{ needs.prepare.outputs.ref }}

    - name: Install Ninja
      uses: llvm/actions/install-ninja@22e9f909d35b50bd1181709564bfe816eaeaae81 # main

    - name: Setup sccache
      uses: hendrikmuhs/ccache-action@ca3acd2731eef11f1572ccb126356c2f9298d35e # v1.2.9
      with:
        max-size: 250M
        key: sccache-${{ runner.os }}-release
        variant: sccache

    - name: Build Stage 1 Clang
      run: |
        sudo chown $USER:$USER /mnt/
        cmake -G Ninja -C clang/cmake/caches/Release.cmake -DCMAKE_C_COMPILER_LAUNCHER=sccache -DCMAKE_CXX_COMPILER_LAUNCHER=sccache -S llvm -B /mnt/build
        ninja -v -C /mnt/build

    # We need to create an archive of the build directory, because it has too
    # many files to upload.
    - name: Package Build and Source Directories
      run: |
        tar -c . | zstd -T0 -c > llvm-project.tar.zst
        tar -C /mnt/ -c build/ | zstd -T0 -c > build.tar.zst

    - name: Upload Stage 1 Source
      uses: actions/upload-artifact@26f96dfa697d77e81fd5907df203aa23a56210a8 #v4.3.0
      with:
        name: stage1-source
        path: llvm-project.tar.zst
        retention-days: 2

    - name: Upload Stage 1 Build Dir
      uses: actions/upload-artifact@26f96dfa697d77e81fd5907df203aa23a56210a8 #v4.3.0
      with:
        name: stage1-build
        path: build.tar.zst
        retention-days: 2

  build-stage2-linux:
    name: "Build Stage 2 Linux"
    needs:
      - prepare
      - build-stage1-linux
    runs-on: ubuntu-22.04
    if: github.repository == 'llvm/llvm-project'
    steps:
    - name: Install Ninja
      uses: llvm/actions/install-ninja@22e9f909d35b50bd1181709564bfe816eaeaae81 # main

    - name: Download Stage 1 Artifacts
      uses: actions/download-artifact@6b208ae046db98c579e8a3aa621ab581ff575935 # v4.1.1
      with:
        pattern: stage1-*
        merge-multiple: true

    - name: Unpack Artifacts
      run: |
        tar --zstd -xf llvm-project.tar.zst
        rm llvm-project.tar.zst
        sudo chown $USER:$USER /mnt/
        tar --zstd -C /mnt -xf build.tar.zst
        rm build.tar.zst

    - name: Build Stage 2
      run: |
        ninja -C /mnt/build stage2-instrumented

    # We need to create an archive of the build directory, because it has too
    # many files to upload.
    - name: Save Build and Source Directories
      run: |
        tar -c . | zstd -T0 -c > llvm-project.tar.zst
        tar -C /mnt/ -c build/ | zstd -T0 -c > build.tar.zst

    - name: Upload Stage 2 Source
      uses: actions/upload-artifact@26f96dfa697d77e81fd5907df203aa23a56210a8 #v4.3.0
      with:
        name: stage2-source
        path: ${{ github.workspace }}/llvm-project.tar.zst
        retention-days: 2

    - name: Upload Stage 2 Build Dir
      uses: actions/upload-artifact@26f96dfa697d77e81fd5907df203aa23a56210a8 #v4.3.0
      with:
        name: stage2-build
        path: ${{ github.workspace }}/build.tar.zst
        retention-days: 2


  build-stage3-linux:
    name: "Build Stage 3 Linux"
    needs:
      - prepare
      - build-stage2-linux
    outputs:
      filename: ${{ steps.package-info.outputs.release-filename }}
    runs-on: ubuntu-22.04-16x64
    if: github.repository == 'llvm/llvm-project'
    steps:
    - name: Install Ninja
      uses: llvm/actions/install-ninja@22e9f909d35b50bd1181709564bfe816eaeaae81 # main

    - name: 'Download artifact'
      uses: actions/download-artifact@6b208ae046db98c579e8a3aa621ab581ff575935 # v4.1.1
      with:
        pattern: stage2-*
        merge-multiple: true

    - name: Unpack Artifact
      run: |
        tar --zstd -xf llvm-project.tar.zst
        rm llvm-project.tar.zst
        sudo chown $USER:$USER /mnt/
        tar --zstd -C /mnt -xf build.tar.zst
        rm build.tar.zst

    - name: Build Release Package
      run: |
        ninja -C /mnt/build stage2-package

    - id: package-info
      run: |
        filename="LLVM-${{ needs.prepare.outputs.release-version }}-Linux.tar.gz"
        echo "filename=$filename" >> $GITHUB_OUTPUT
        echo "path=/mnt/build/tools/clang/stage2-bins/$filename" >> $GITHUB_OUTPUT

    - uses: actions/upload-artifact@26f96dfa697d77e81fd5907df203aa23a56210a8 #v4.3.0
      if: always()
      with:
        name: release-binary
        path: ${{ steps.package-info.outputs.path }}

    # Clean up some build files to reduce size of artifact.
    - name: Clean Up Build Directory
      run: |
        find /mnt/build -iname ${{ steps.package-info.outputs.filename }} -delete

    # We need to create an archive of the build directory, because it has too
    # many files to upload.
    - name: Save Build and Source Directories
      run: |
        tar -c . | zstd -T0 -c > llvm-project.tar.zst
        tar -C /mnt/ -c build/ | zstd -T0 -c > build.tar.zst

    - name: Upload Stage 3 Source
      uses: actions/upload-artifact@26f96dfa697d77e81fd5907df203aa23a56210a8 #v4.3.0
      with:
        name: stage3-source
        path: llvm-project.tar.zst
        retention-days: 2

    - name: Upload Stage 3 Build Dir
      uses: actions/upload-artifact@26f96dfa697d77e81fd5907df203aa23a56210a8 #v4.3.0
      with:
        name: stage3-build
        path: build.tar.zst
        retention-days: 2

  upload-release-binaries-linux:
    name: "Upload Linux Release Binaries"
    needs:
      - prepare
      - build-stage3-linux
    if : ${{ needs.prepare.outputs.upload == 'true' }}
    runs-on: ubuntu-22.04
    permissions:
      contents: write # For release uploads

    steps:
    - name: 'Download artifact'
      uses: actions/download-artifact@6b208ae046db98c579e8a3aa621ab581ff575935 # v4.1.1
      with:
        name: release-binary

    - name: Upload Release
      run: |
        sudo apt install python3-github
        ./llvm-project/llvm/utils/release/github-upload-release.py \
        --token ${{ github.token }} \
        --release ${{ needs.prepare.outputs.release-version }} \
        upload \
        --files ${{ needs.build-stage3-linux.outputs.release-filename }}


  test-stage3-linux:
    name: "Test Stage 3 Linux"
    needs:
      - prepare
      - build-stage3-linux
    runs-on: ubuntu-22.04
    if: github.repository == 'llvm/llvm-project'
    steps:
    - name: Install Ninja
      uses: llvm/actions/install-ninja@22e9f909d35b50bd1181709564bfe816eaeaae81 # main

    - name: 'Download artifact'
      uses: actions/download-artifact@6b208ae046db98c579e8a3aa621ab581ff575935 # v4.1.1
      with:
        pattern: stage3-*
        merge-multiple: true

    - name: Unpack Artifact
      run: |
        tar --zstd -xf llvm-project.tar.zst
        rm llvm-project.tar.zst
        sudo chown $USER:$USER /mnt/
        tar --zstd -C /mnt -xf build.tar.zst
        rm build.tar.zst

    - name: Run Tests
      run: |
        ninja -C /mnt/build stage2-check-all