release-recipe.yml

name: Release Recipe

on:
  push:
    tags:
      - "rust-v*"
      - "rust-latest"
      - "motoko-v*"
      - "motoko-latest"
      - "asset-canister-v*"
      - "asset-canister-latest"
      - "prebuilt-v*"
      - "prebuilt-latest"

permissions:
  contents: write

jobs:
  release-recipe:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
        with:
          fetch-depth: 0  # Fetch all history and tags

      - name: Extract recipe and version from tag
        id: tag_info
        run: |
          TAG=${GITHUB_REF#refs/tags/}
          RECIPE=$(echo "$TAG" | sed 's/-[^-]*$//')
          VERSION=$(echo "$TAG" | sed 's/^.*-//')

          # Handle latest tags specially
          if [ "$VERSION" = "latest" ]; then
            echo "recipe=$RECIPE" >> "$GITHUB_OUTPUT"
            echo "version=latest" >> "$GITHUB_OUTPUT"
            echo "is_latest=true" >> "$GITHUB_OUTPUT"
          else
            echo "recipe=$RECIPE" >> "$GITHUB_OUTPUT"
            echo "version=$VERSION" >> "$GITHUB_OUTPUT"
            echo "is_latest=false" >> "$GITHUB_OUTPUT"
          fi

      - name: Package Recipe
        run: |
          mkdir -p release

          # Copy individual recipe files
          cp recipes/${{ steps.tag_info.outputs.recipe }}/recipe.hbs release/

          # Create archives
          tar -czf release/${{ steps.tag_info.outputs.recipe }}-${{ steps.tag_info.outputs.version }}.tar.gz recipes/${{ steps.tag_info.outputs.recipe }}/
          zip -r release/${{ steps.tag_info.outputs.recipe }}-${{ steps.tag_info.outputs.version }}.zip recipes/${{ steps.tag_info.outputs.recipe }}/

      - name: Generate Checksums
        run: |
          cd release
          sha256sum * > checksums.txt

      - name: Find previous recipe version
        id: prev_version
        run: |
          RECIPE="${{ steps.tag_info.outputs.recipe }}"
          CURRENT_TAG="${GITHUB_REF#refs/tags/}"
          IS_LATEST="${{ steps.tag_info.outputs.is_latest }}"

          if [ "$IS_LATEST" = "true" ]; then
            # For -latest tags: find the versioned tag pointing to the same commit
            CURRENT_COMMIT=$(git rev-parse HEAD)
            CURRENT_VERSION_TAG=$(git tag --sort=-version:refname -l "${RECIPE}-v*" | while read -r tag; do
              if [ "$(git rev-parse "$tag")" = "$CURRENT_COMMIT" ]; then
                echo "$tag"
                break
              fi
            done)

            if [ -z "$CURRENT_VERSION_TAG" ]; then
              echo "::error::No versioned tag found for this commit. A -latest tag must have a corresponding versioned tag (e.g., ${RECIPE}-v1.0.0) on the same commit."
              exit 1
            else
              echo "Found versioned tag for this commit: ${CURRENT_VERSION_TAG}"
              # Find the previous version before the current versioned tag
              PREV_TAG=$(git tag --sort=-version:refname -l "${RECIPE}-v*" | grep -v "${CURRENT_VERSION_TAG}" | head -n 1)
              echo "previous_tag=${PREV_TAG}" >> "$GITHUB_OUTPUT"
              echo "compare_tag=${CURRENT_VERSION_TAG}" >> "$GITHUB_OUTPUT"
            fi
          else
            # For versioned tags: find the previous version tag
            PREV_TAG=$(git tag --sort=-version:refname -l "${RECIPE}-v*" | grep -v "${CURRENT_TAG}" | head -n 1)

            if [ -z "$PREV_TAG" ]; then
              echo "No previous version found for ${RECIPE}"
              echo "previous_tag=" >> "$GITHUB_OUTPUT"
            else
              echo "Found previous tag: ${PREV_TAG}"
              echo "previous_tag=${PREV_TAG}" >> "$GITHUB_OUTPUT"
            fi
            echo "compare_tag=${CURRENT_TAG}" >> "$GITHUB_OUTPUT"
          fi

      - name: Generate Release Notes Body
        id: release_notes
        run: |
          RECIPE="${{ steps.tag_info.outputs.recipe }}"
          PREV_TAG="${{ steps.prev_version.outputs.previous_tag }}"
          COMPARE_TAG="${{ steps.prev_version.outputs.compare_tag }}"

          if [ -n "$PREV_TAG" ] && [ -n "$COMPARE_TAG" ]; then
            echo "## What's Changed" > release_notes.md
            echo "" >> release_notes.md

            # Get commits that affect this recipe's directory
            COMMITS=$(git log ${PREV_TAG}..${COMPARE_TAG} --pretty=format:"* %s (%h)" --no-merges -- recipes/${RECIPE}/)

            if [ -n "$COMMITS" ]; then
              echo "Changes since ${PREV_TAG}:" >> release_notes.md
              echo "" >> release_notes.md
              echo "$COMMITS" >> release_notes.md
              echo "" >> release_notes.md
            else
              echo "No changes to the ${RECIPE} recipe files." >> release_notes.md
              echo "" >> release_notes.md
            fi

            echo "" >> release_notes.md
            echo "**Full Changelog**: https://github.com/${{ github.repository }}/compare/${PREV_TAG}...${COMPARE_TAG}" >> release_notes.md
          else
            echo "## What's Changed" > release_notes.md
            echo "" >> release_notes.md
            echo "Initial release of the ${RECIPE} recipe." >> release_notes.md
          fi

      - name: Create Release
        uses: softprops/action-gh-release@aec2ec56f94eb8180ceec724245f64ef008b89f5 # v2.4.0
        with:
          tag_name: ${{ steps.tag_info.outputs.recipe }}-${{ steps.tag_info.outputs.version }}
          name: ${{ steps.tag_info.outputs.recipe }} ${{ steps.tag_info.outputs.version }}
          files: release/*
          body_path: release_notes.md
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - name: Update latest tag
        if: steps.tag_info.outputs.is_latest == 'false'
        run: |
          RECIPE="${{ steps.tag_info.outputs.recipe }}"
          CURRENT_TAG="${GITHUB_REF#refs/tags/}"

          echo "Updating ${RECIPE}-latest to point to ${CURRENT_TAG}"

          # Delete the old latest tag locally and remotely
          git tag -d ${RECIPE}-latest 2>/dev/null || true
          git push origin :refs/tags/${RECIPE}-latest 2>/dev/null || true

          # Create new latest tag pointing to current commit
          git tag ${RECIPE}-latest

          # Push the new latest tag
          git push origin ${RECIPE}-latest
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}