update-formula.yml

name: Update Homebrew Formula

on:
  repository_dispatch:
    types: [update-formula]

jobs:
  update-formula:
    runs-on: ubuntu-latest
    steps:
    - name: Checkout homebrew-tap
      uses: actions/checkout@v4

    - name: Extract payload
      id: payload
      run: |
        echo "version=${{ github.event.client_payload.version }}" >> "$GITHUB_OUTPUT"
        echo "sha_macos_arm64=${{ github.event.client_payload.sha_macos_arm64 }}" >> "$GITHUB_OUTPUT"
        echo "sha_linux_x86=${{ github.event.client_payload.sha_linux_x86 }}" >> "$GITHUB_OUTPUT"
        echo "sha_jvm=${{ github.event.client_payload.sha_jvm }}" >> "$GITHUB_OUTPUT"

    - name: Generate formula
      env:
        TAG: ${{ steps.payload.outputs.version }}
        SHA_MACOS_ARM64: ${{ steps.payload.outputs.sha_macos_arm64 }}
        SHA_LINUX_X86: ${{ steps.payload.outputs.sha_linux_x86 }}
        SHA_JVM: ${{ steps.payload.outputs.sha_jvm }}
      run: |
        envsubst '$TAG $SHA_MACOS_ARM64 $SHA_LINUX_X86 $SHA_JVM' > Formula/riddlc.rb << 'FORMULA'
        # Homebrew formula for riddlc - the RIDDL compiler
        # To install: brew install ossuminc/tap/riddlc
        # Or add the tap first: brew tap ossuminc/tap && brew install riddlc
        # Auto-generated by update-formula.yml - do not edit manually

        class Riddlc < Formula
          desc "Compiler for RIDDL (Reactive Interface to Domain Definition Language)"
          homepage "https://github.com/ossuminc/riddl"
          version "${TAG}"
          license "Apache-2.0"

          if OS.mac? && Hardware::CPU.arm?
            url "https://github.com/ossuminc/riddl/releases/download/#{version}/riddlc-macos-arm64.zip"
            sha256 "${SHA_MACOS_ARM64}"
          elsif OS.linux? && Hardware::CPU.intel?
            url "https://github.com/ossuminc/riddl/releases/download/#{version}/riddlc-linux-x86_64.zip"
            sha256 "${SHA_LINUX_X86}"
          else
            url "https://github.com/ossuminc/riddl/releases/download/#{version}/riddlc.zip"
            sha256 "${SHA_JVM}"
            depends_on "openjdk@21"
          end

          def install
            if (OS.mac? && Hardware::CPU.arm?) || (OS.linux? && Hardware::CPU.intel?)
              # Native binary - Homebrew strips the single top-level "bin/" dir
              bin.install "riddlc"
            else
              # JVM version - needs wrapper script
              rm "bin/riddlc.bat"
              libexec.install "lib"
              libexec.install "bin"

              (bin/"riddlc").write <<~EOS
                #!/bin/bash
                export JAVA_HOME="#{Formula["openjdk@21"].opt_prefix}"
                exec "#{libexec}/bin/riddlc" "$@"
              EOS
            end
          end

          def caveats
            if (OS.mac? && Hardware::CPU.arm?) || (OS.linux? && Hardware::CPU.intel?)
              <<~EOS
                riddlc is installed as a native binary. No JDK required.

                To verify the installation:
                  riddlc version

                For help:
                  riddlc help
              EOS
            else
              <<~EOS
                riddlc requires Java 21. This formula uses openjdk@21.

                To verify the installation:
                  riddlc version

                For help:
                  riddlc help
              EOS
            end
          end

          test do
            assert_match "riddlc version", shell_output("#{bin}/riddlc version")
          end
        end
        FORMULA

    - name: Commit and push formula
      run: |
        git config user.name "github-actions[bot]"
        git config user.email "github-actions[bot]@users.noreply.github.com"
        TAG="${{ steps.payload.outputs.version }}"
        git add Formula/riddlc.rb
        git diff --cached --quiet || git commit -m "Update riddlc to ${TAG} with multi-platform native binaries"
        git push