release.yml

name: Release

on:
  pull_request:
    types: [opened, synchronize, reopened]
    branches:
      - "main"

jobs:
  release:
    if: ${{  startsWith(github.event.pull_request.head.ref, 'release-') }}
    runs-on: macos-latest

    steps:
      - uses: actions/checkout@v3
        with:
          token: ${{ secrets.PAT_TOKEN }}
          ref: ${{ github.event.pull_request.head.ref }}

      - uses: actions-rust-lang/setup-rust-toolchain@v1
      
      - uses: actions-rust-lang/setup-rust-toolchain@v1
        with: 
            target: x86_64-apple-darwin aarch64-apple-ios x86_64-apple-ios aarch64-apple-ios-sim
      
      - name: Extract SEMVER from branch name
        id: extract_semver
        run: echo "SEMVER=$(echo ${{ github.head_ref }} | sed 's/^release-//')" >> $GITHUB_ENV
    
      - name: Make Install
        run: make install
        
      - name: Make Xcframework
        run: make xcframework

      - name: Compute SHA-256 checksum
        id: checksum
        run: echo "SHA256=$(shasum -a 256 products/libzcashlc.xcframework.zip | cut -d ' ' -f 1)" >> $GITHUB_ENV
        
      - name: Update Swift Package
        run: |
          RELEASE_URL="https://github.com/${{ github.repository }}/releases/download/${{ env.SEMVER }}/libzcashlc.xcframework.zip"
          CHECKSUM="${{ env.SHA256 }}"
          sed -i '' -e "s|url: .*|url: \"${RELEASE_URL}\",|g" \
                    -e "s|checksum: .*|checksum: \"${CHECKSUM}\"|g" Package.swift
  
      - name: Configure Git
        run: |
          git config --global user.name 'github-actions[bot]'
          git config --global user.email 'github-actions[bot]@users.noreply.github.com'
  
      - name: Commit and Push Changes
        env:
          PAT_TOKEN: ${{ secrets.PAT_TOKEN }}
        run: |
          git add Package.swift
          git commit -m "Update Swift package for release ${{ env.SEMVER }}"
          git push
  
      - name: Tag the Release
        env:
          PAT_TOKEN: ${{ secrets.PAT_TOKEN }}
        run: |
          TAG_NAME="${{ env.SEMVER }}"
          git tag $TAG_NAME
          git push https://x-access-token:${PAT_TOKEN}@github.com/${{ github.repository }} $TAG_NAME
    
      - name: Fetch all tags
        run: git fetch --tags
    
      - name: Generate Release Notes
        id: release_notes
        run: |
          TAG_NAME="${{ env.SEMVER }}"
          PREVIOUS_TAG=$(git tag --sort=-v:refname | grep -E 'v[0-9]+\.[0-9]+\.[0-9]+' | sed -n '2p')
          RELEASE_NOTES=$(git log ${PREVIOUS_TAG}..HEAD --pretty=format:"%h - %s (%an, %ad)" --date=short)
          echo "RELEASE_NOTES=${RELEASE_NOTES}" >> $GITHUB_ENV
    
      - name: Create Release
        id: create_release
        uses: actions/create-release@v1
        env:
          GITHUB_TOKEN: ${{ secrets.PAT_TOKEN }}
        with:
            tag_name: ${{ env.SEMVER }}
            release_name: Release ${{ env.SEMVER }}
            body: |
              ### Changes since last release
              ${{ env.RELEASE_NOTES }}
  
              ### Checksum
              ```plaintext
              ${{ env.SHA256 }}
              ```
            draft: false
            prerelease: false
  
      - name: Upload XCFramework to Release
        uses: actions/upload-release-asset@v1
        env:
          GITHUB_TOKEN: ${{ secrets.PAT_TOKEN }}
        with:
          upload_url: ${{ steps.create_release.outputs.upload_url }}
          asset_path: products/libzcashlc.xcframework.zip
          asset_name: libzcashlc.xcframework.zip
          asset_content_type: application/zip