release.yml

name: Release

on:
  push:
    tags:
      - "v[0-9]+.[0-9]+.[0-9]+" # Push events to matching v*, i.e. v1.0, v20.15.10
      - "v[0-9]+.[0-9]+.[0-9]+-rc*" # Push events to matching v*, i.e. v1.0-rc1, v20.15.10-rc5

jobs:
  release:
    env:
      GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
    if: startsWith(github.ref, 'refs/tags/')
    runs-on: ubuntu-latest
    steps:
      - name: Create release for ${{github.ref_name}}
        run: gh release create ${{github.ref_name}} --prerelease --generate-notes --repo ${{github.repository}}

  artifacts:
    if: startsWith(github.ref, 'refs/tags/')
    needs: release
    runs-on: ubuntu-latest
    env:
      GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
    strategy:
      matrix:
        build_type: ["build-release-arm64", "build-release-amd64"]
    steps:
      - name: Checkout
        uses: actions/checkout@v3
      - name: Set version tag
        run: echo "VERSION=$(echo ${{github.ref_name}} | sed 's/^v//')" >> $GITHUB_ENV
      - name: Build ${{matrix.build_type}}
        run: make ${{matrix.build_type}}
      - name: Upload the artifacts to release
        run: gh release upload ${{github.ref_name}} ./build/release/*

  calculate-checksums:
    needs: artifacts
    env:
      GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
    if: startsWith(github.ref, 'refs/tags/')
    runs-on: ubuntu-latest
    steps:
      - name: Create build directory
        run: mkdir -p build/release
      - name: Download artifacts
        run: gh release download ${{github.ref_name}} --pattern '*.tar.gz' --dir build/release --repo ${{github.repository}}
      - name: Create checksums
        run: |
          cd build/release
          sha256sum *.tar.gz > checksum.txt
      - name: Display checksums
        run: cat build/release/checksum.txt
      - name: Upload the checksum to release
        run: gh release upload ${{github.ref_name}} build/release/checksum.txt --repo ${{github.repository}}

  generate-json:
    needs: calculate-checksums
    env:
      GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
    if: startsWith(github.ref, 'refs/tags/')
    runs-on: ubuntu-latest
    steps:
      - name: Install jq
        run: sudo apt-get update && sudo apt-get install -y jq
      - name: Create build directory
        run: mkdir -p build/release
      - name: Download artifacts
        run: gh release download ${{github.ref_name}} --pattern '*.tar.gz' --dir build/release --repo ${{github.repository}}
      - name: Generate JSON file
        run: |
          cd build/release
          binaries=()
          for file in *.tar.gz; do
            checksum=$(sha256sum $file | awk '{print $1}')
            url="https://github.com/${{github.repository}}/releases/download/${{github.ref_name}}/$file?checksum=sha256:$checksum"
            declare -A TRANSLATION_MATRIX
            TRANSLATION_MATRIX=( ["Linux_x86_64"]="linux/amd64" ["Linux_arm64"]="linux/arm64" ["Darwin_arm64"]="darwin/arm64" )
            os_architecture_translated=""
            for key in "${!TRANSLATION_MATRIX[@]}"; do
              if [[ "$file" == *"$key"* ]]; then
                os_architecture_translated="${TRANSLATION_MATRIX[$key]}"
                break
              fi
            done
            if [ -z "$os_architecture_translated" ]
            then
              echo "Could not translate OS and architecture information from binary name: $file"
              exit 1
            fi
            binaries+=("    \"$os_architecture_translated\": \"$url\"")
          done
          binaries_json=$(IFS=$',\n'; echo "${binaries[*]}")
          cat << EOF > binaries.json.raw
          {
            "binaries": {
          $binaries_json
            }
          }
          EOF

      - name: Pretty-print JSON file using jq
        run: |
          cd build/release 
          jq . < binaries.json.raw > binaries.json && rm binaries.json.raw

      - name: Display JSON file
        run: cat build/release/binaries.json
      - name: Upload the JSON file to release
        run: gh release upload ${{github.ref_name}} build/release/binaries.json --repo ${{github.repository}}