build-on-pull-request.yaml

name: Build FFmpeg on pull request
on:
  pull_request_target:
    paths:
      - ffmpeg-source
      - ffmpeg-windows-build-helpers
      - dependencies.sh
      - .github/workflows/build-on-push.yaml
      - .github/workflows/build-on-pull-request.yaml
      
jobs:
  build:
    runs-on: ubuntu-latest
    if: github.actor == 'dependabot[bot]' || github.actor == 'AnimMouse' || github.actor == 'samicrusader'
    strategy:
      matrix:
        os: [win64, win32]
        
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          submodules: true
          ref: ${{ github.event.pull_request.head.ref }}
          repository: ${{ github.event.pull_request.head.repo.full_name }}
          persist-credentials: false
          
      - name: Install dependencies
        run: ./dependencies.sh
        
      - name: Get current FFmpeg git commit SHA & date
        id: git-sha-date
        working-directory: ffmpeg-source
        run: |
          echo git-sha=$(git rev-parse --short HEAD) >> $GITHUB_OUTPUT
          echo git-date=$(git log -1 --format=%ci) >> $GITHUB_OUTPUT
          
      - name: Get current ffmpeg-windows-build-helpers git commit SHA
        id: helper-git-sha
        working-directory: ffmpeg-windows-build-helpers
        run: echo git-sha=$(git rev-parse --short HEAD) >> $GITHUB_OUTPUT
        
      - name: Move ffmpeg-windows-build-helpers
        run: mv -v ./ffmpeg-windows-build-helpers/* ./
        
      - name: Get current date & time before build
        id: date-time-before
        run: echo date-time=$(date +'%Y-%m-%d %H:%M') >> $GITHUB_OUTPUT
        
      - name: Compile FFmpeg using ffmpeg-windows-build-helpers
        run: ./cross_compile_ffmpeg.sh --build-ffmpeg-shared=y --build-ffmpeg-static=n --ffmpeg-source-dir=$GITHUB_WORKSPACE/ffmpeg-source --gcc-cpu-count=$(nproc) --disable-nonfree=n --sandbox-ok=y --compiler-flavors=${{ matrix.os }}
        
      - name: Get current date & time after build
        id: date-time-after
        run: |
          echo date-time=$(date +'%Y-%m-%d %H:%M') >> $GITHUB_OUTPUT
          echo date-time-tag=$(date +'%Y-%m-%d-%H-%M') >> $GITHUB_OUTPUT

      - name: Package output files for FFmpeg ${{ matrix.os }} nonfree
        run: 7z a ffmpeg-shared-${{ steps.git-sha-date.outputs.git-sha }}-${{ steps.helper-git-sha.outputs.git-sha }}-${{ matrix.os }}-nonfree.7z $GITHUB_WORKSPACE/ffmpeg-source/bin/*.dll $GITHUB_WORKSPACE/ffmpeg-source/bin/*.exe -mx9
          
      - name: Upload FFmpeg ${{ matrix.os }} nonfree
        uses: actions/upload-artifact@v3
        with:
          name: ffmpeg-shared-${{ steps.git-sha-date.outputs.git-sha }}-${{ steps.helper-git-sha.outputs.git-sha }}-${{ matrix.os }}-nonfree.7z
          path: ffmpeg-shared-${{ steps.git-sha-date.outputs.git-sha }}-${{ steps.helper-git-sha.outputs.git-sha }}-${{ matrix.os }}-nonfree.7z
          
    outputs:
      date-time-before: ${{ steps.date-time-before.outputs.date-time }}
      date-time-after: ${{ steps.date-time-after.outputs.date-time }}
      date-time-after-tag: ${{ steps.date-time-after.outputs.date-time-tag }}
      git-sha: ${{ steps.git-sha-date.outputs.git-sha }}
      git-date: ${{ steps.git-sha-date.outputs.git-date }}
      helper-git-sha: ${{ steps.helper-git-sha.outputs.git-sha }}
      
  release:
    needs: [build]
    runs-on: ubuntu-latest
    steps:
      - name: Download FFmpeg archive win64
        uses: actions/download-artifact@v3
        with:
          name: ffmpeg-shared-${{ needs.build.outputs.git-sha }}-${{ needs.build.outputs.helper-git-sha }}-win64-nonfree.7z
          
      - name: Download FFmpeg archive win32
        uses: actions/download-artifact@v3
        with:
          name: ffmpeg-shared-${{ needs.build.outputs.git-sha }}-${{ needs.build.outputs.helper-git-sha }}-win32-nonfree.7z
          
      - name: Release
        run: |
          gh release create "a-${{ needs.build.outputs.date-time-after-tag }}" \
          "ffmpeg-shared-${{ needs.build.outputs.git-sha }}-${{ needs.build.outputs.helper-git-sha }}-win64-nonfree.7z" \
          "ffmpeg-shared-${{ needs.build.outputs.git-sha }}-${{ needs.build.outputs.helper-git-sha }}-win32-nonfree.7z" \
          -n "FFmpeg shared nonfree git-${{ needs.build.outputs.git-sha }} in ${{ needs.build.outputs.git-date }} built on ${{ needs.build.outputs.date-time-after }} started at ${{ needs.build.outputs.date-time-before }}
          Using ffmpeg-windows-build-helpers git-${{ needs.build.outputs.helper-git-sha }}" \
          -p -t "Auto ${{ needs.build.outputs.date-time-after }} ${{ needs.build.outputs.git-sha }}"
        env:
          GITHUB_TOKEN: ${{ github.token }}
          GH_REPO: ${{ github.repository }}
          
  delete_old:
    name: Delete older pre-releases
    runs-on: ubuntu-latest
    steps:
      - name: Delete older pre-releases
        uses: dev-drprasad/delete-older-releases@v0.3.2
        with:
          keep_latest: 10
          delete_tags: true
          delete_tag_pattern: a
        env:
          GITHUB_TOKEN: ${{ github.token }}