update-formula.yml

name: "Update Formula"
on:
  workflow_dispatch:
    inputs:
      version:
        description: 'Version to update to (e.g., v1.2.5)'
        required: true
        type: string

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

      - name: Calculate new hashes
        id: hashes
        run: |
          # Get version from workflow dispatch input
          VERSION="${{ github.event.inputs.version }}"
          BASE_URL="https://github.com/interline-io/transitland-lib/releases/download/${VERSION}"
          
          # Create temporary directory
          TEMP_DIR=$(mktemp -d)
          cd "$TEMP_DIR"
          
          # Download and calculate hashes
          echo "Downloading files for version ${VERSION}..."
          
          # macOS Intel
          curl -L "${BASE_URL}/transitland-macos-intel" -o transitland-macos-intel
          MACOS_INTEL_HASH=$(sha256sum transitland-macos-intel | cut -d' ' -f1)
          echo "macos_intel_hash=${MACOS_INTEL_HASH}" >> $GITHUB_OUTPUT
          
          # macOS Apple Silicon
          curl -L "${BASE_URL}/transitland-macos-apple" -o transitland-macos-apple
          MACOS_APPLE_HASH=$(sha256sum transitland-macos-apple | cut -d' ' -f1)
          echo "macos_apple_hash=${MACOS_APPLE_HASH}" >> $GITHUB_OUTPUT
          
          # Linux
          curl -L "${BASE_URL}/transitland-linux" -o transitland-linux
          LINUX_HASH=$(sha256sum transitland-linux | cut -d' ' -f1)
          echo "linux_hash=${LINUX_HASH}" >> $GITHUB_OUTPUT
          
          # Store version for later use
          echo "version=${VERSION}" >> $GITHUB_OUTPUT
          
          # Clean up
          cd - > /dev/null
          rm -rf "$TEMP_DIR"
          
          echo "Calculated hashes:"
          echo "Version: ${VERSION}"
          echo "macOS Intel: ${MACOS_INTEL_HASH}"
          echo "macOS Apple: ${MACOS_APPLE_HASH}"
          echo "Linux: ${LINUX_HASH}"

      - name: Update Homebrew formula
        run: |
          VERSION="${{ steps.hashes.outputs.version }}"
          FORMULA_FILE="transitland-lib.rb"
          
          # Update version
          sed -i "s/version \"v[0-9.]*\"/version \"${VERSION}\"/" "$FORMULA_FILE"
          
          # Update hashes
          sed -i "s/sha256 \"[a-f0-9]\{64\}\" # macOS Intel/sha256 \"${{ steps.hashes.outputs.macos_intel_hash }}\" # macOS Intel/" "$FORMULA_FILE"
          sed -i "s/sha256 \"[a-f0-9]\{64\}\" # macOS Apple/sha256 \"${{ steps.hashes.outputs.macos_apple_hash }}\" # macOS Apple/" "$FORMULA_FILE"
          sed -i "s/sha256 \"[a-f0-9]\{64\}\" # Linux/sha256 \"${{ steps.hashes.outputs.linux_hash }}\" # Linux/" "$FORMULA_FILE"

      - name: Create Pull Request
        id: cpr
        uses: peter-evans/create-pull-request@v7
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          path: .
          branch: update-formula-${{ steps.hashes.outputs.version }}
          title: "Update transitland-lib to ${{ steps.hashes.outputs.version }}"
          body: |
            This PR updates the Homebrew formula for transitland-lib to version ${{ steps.hashes.outputs.version }}.
            
            ## Changes
            - Updated version to ${{ steps.hashes.outputs.version }}
            - Updated SHA256 hashes for all platform binaries:
              - macOS Intel: `${{ steps.hashes.outputs.macos_intel_hash }}`
              - macOS Apple Silicon: `${{ steps.hashes.outputs.macos_apple_hash }}`
              - Linux: `${{ steps.hashes.outputs.linux_hash }}`
            
            ## Release
            https://github.com/interline-io/transitland-lib/releases/tag/${{ steps.hashes.outputs.version }}
            
            ---
            *Auto-generated by GitHub Actions*
          commit-message: "Update transitland-lib to ${{ steps.hashes.outputs.version }}"
          delete-branch: true

      - name: Log PR creation results
        if: ${{ steps.cpr.outputs.pull-request-number }}
        run: |
          echo "✅ Pull Request created successfully!"
          echo "PR Number: ${{ steps.cpr.outputs.pull-request-number }}"
          echo "PR URL: ${{ steps.cpr.outputs.pull-request-url }}"
          echo "Branch: ${{ steps.cpr.outputs.pull-request-branch }}"