release.yml

name: Release

# Automated release pipeline using Release Please.
#
# How it works:
#   1. You merge PRs to main with conventional commits
#   2. Release Please creates/updates a "Release PR" with version bump
#   3. You review and merge the Release PR
#   4. Tag created, release published, WASM built, notes rebuilt with
#      ALL commit types + contributors + full changelog link

on:
  push:
    branches: [main]

permissions:
  contents: write
  pull-requests: write

jobs:
  release-please:
    runs-on: ubuntu-latest
    outputs:
      release_created: ${{ steps.release.outputs.release_created }}
      tag_name: ${{ steps.release.outputs.tag_name }}
    steps:
      - uses: googleapis/release-please-action@v4
        id: release
        with:
          release-type: simple
          token: ${{ secrets.GITHUB_TOKEN }}

  build-artifacts:
    needs: release-please
    if: needs.release-please.outputs.release_created == 'true'
    runs-on: ubuntu-latest
    env:
      TAG: ${{ needs.release-please.outputs.tag_name }}
    steps:
      - uses: actions/checkout@v6
        with:
          fetch-depth: 0

      - name: Install stellar-cli
        run: |
          curl -fsSL https://github.com/stellar/stellar-cli/releases/download/v25.2.0/stellar-cli-25.2.0-x86_64-unknown-linux-gnu.tar.gz \
            | tar xz -C /usr/local/bin

      - uses: actions-rust-lang/setup-rust-toolchain@v1
        with:
          toolchain: stable
          target: wasm32-unknown-unknown,wasm32v1-none

      - name: Build optimized WASM contracts
        run: stellar contract build

      - name: Upload WASM binaries to release
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          for wasm in target/wasm32v1-none/release/*.wasm; do
            [ -f "$wasm" ] || continue
            gh release upload "$TAG" "$wasm" --clobber
            echo "Uploaded: $(basename $wasm)"
          done

      - name: Rebuild release notes
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          HEAD_SHA=$(git rev-parse HEAD)
          PREV_TAG=$(git tag --sort=-v:refname | grep -v "^${TAG}$" | head -1 2>/dev/null || echo "")

          if [ -n "$PREV_TAG" ]; then
            RANGE="${PREV_TAG}..${TAG}"
          else
            RANGE="${TAG}"
          fi

          # Build changelog using external script (avoids YAML escaping)
          git log "$RANGE" --pretty=format:"%s (%h)" --no-merges 2>/dev/null | \
            grep -v "^chore(main): release" > /tmp/commits.txt || true

          CHANGELOG=$(bash .github/scripts/categorize-commits.sh)

          # Resolve contributors
          cat > /tmp/contributors.jq << 'JQ_FILTER'
          [
            .[] |
            select(.author != null) |
            select(.author.login != "dependabot[bot]") |
            select(.author.login != "web-flow") |
            select(.author.login != "github-actions[bot]") |
            { login: .author.login, name: .commit.author.name }
          ] |
          unique_by(.login) |
          .[] |
          "- **\(.name)** ([@\(.login)](https://github.com/\(.login)))"
          JQ_FILTER

          gh api "repos/${GITHUB_REPOSITORY}/commits" \
            -X GET -f per_page=100 -f sha="${HEAD_SHA}" \
            > /tmp/commits_api.json 2>/dev/null || echo "[]" > /tmp/commits_api.json

          CONTRIBUTORS=$(jq -r -f /tmp/contributors.jq /tmp/commits_api.json 2>/dev/null || echo "")

          # Build release body
          {
            echo "## ${TAG}"
            echo ""
            echo "$CHANGELOG"
            if [ -n "$CONTRIBUTORS" ]; then
              echo "## Contributors"
              echo ""
              echo "Thank you to everyone who contributed to this release:"
              echo ""
              echo "$CONTRIBUTORS"
            fi
            echo ""
            echo "---"
            echo ""
            if [ -n "$PREV_TAG" ]; then
              echo "**[View all code changes since ${PREV_TAG}](https://github.com/${GITHUB_REPOSITORY}/compare/${PREV_TAG}...${TAG})**"
            else
              echo "**[View all commits](https://github.com/${GITHUB_REPOSITORY}/commits/${TAG})**"
            fi
          } > /tmp/release_body.md

          echo "=== Release notes ==="
          cat /tmp/release_body.md
          echo "=== End ==="

          gh release edit "$TAG" --notes-file /tmp/release_body.md