release.yml

name: Release
defaults:
  run:
    shell: bash

permissions:
  contents: write
  pull-requests: write

on:
  workflow_run: 
    workflows: [CI]
    types: [completed]
    branches: [main]

jobs:
  check_commit:
    name: Check Commit
    runs-on: ubuntu-latest
    outputs:
      IS_RELEASE: ${{ steps.check_msg.outputs.IS_RELEASE }}
    steps:
      - name: Check out Git repository
        uses: actions/checkout@v4

      - name: Check latest commit message
        id: check_msg
        run: |
          LATEST_COMMIT_MSG=$(git log -1 --pretty=%B | cat)
          if [[ ${LATEST_COMMIT_MSG} == *"[release]"* ]]; then
            echo "release message found - continuing with the release"
            IS_RELEASE="true"
          else
            echo "no release message found - skipping..."
            IS_RELEASE="false"
          fi
          echo "IS_RELEASE=${IS_RELEASE}" >> $GITHUB_OUTPUT
          
  release:
    name: Release
    needs: [check_commit]
    runs-on: ubuntu-latest
    if: ${{ needs.check_commit.outputs.IS_RELEASE == 'true' }}
    env:
      IS_RELEASE: ${{  needs.check_commit.outputs.IS_RELEASE }}
    steps:
      - name: Check out Git repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
          
      - name: Download artifact
        id: download-artifact
        uses: dawidd6/action-download-artifact@v6
        with:
          github_token: ${{secrets.GITHUB_TOKEN}}
          workflow: ci.yml
          workflow_conclusion: success
          name: wasm-file
          
      - name: Bump version
        run: |
          set -e
          LATEST_COMMIT_MSG=$(git log -1 --pretty=%B | cat)
          
          echo "Extract the latest tag version"
          LATEST_TAG=$(git describe --tags $(git rev-list --tags --max-count=1))
          
          BUMP_TYPE="patch" # Initialize the default version bump type to patch
          if [[ "${LATEST_COMMIT_MSG}" == *"[major]"* ]]; then
            BUMP_TYPE="major"
          elif [[ "${LATEST_COMMIT_MSG}" == *"[minor]"* ]]; then
            BUMP_TYPE="minor"
          fi

          case ${BUMP_TYPE} in
            "major")
              NEW_TAG=$(echo "${LATEST_TAG}" | awk -F. '{OFS="."; $1="v" substr($1,2)+1; $2="0"; $3="0"; print}')
              ;;
            "minor")
              NEW_TAG=$(echo "${LATEST_TAG}" | awk -F. '{OFS="."; $2=$2+1; $3="0"; print}')
              ;;
            "patch")
              NEW_TAG=$(echo "${LATEST_TAG}" | awk -F. '{OFS="."; $3=$3+1; print}')
              ;;
          esac
          
          echo "LATEST_TAG=${LATEST_TAG}" >> $GITHUB_ENV
          echo "NEW_TAG=${NEW_TAG}" >> $GITHUB_ENV

      - name: Push tag
        run: |
          NEW_TAG=${{ env.NEW_TAG }}
          
          git tag ${NEW_TAG}
          git push origin ${NEW_TAG}
          
      - name: Calculate sha256
        run: |
          SHA256_HASH=$(sha256sum plugin.wasm | awk '{ print $1 }')
          echo "SHA256_HASH=${SHA256_HASH}" >> $GITHUB_ENV
          echo "The calculated sha256 is $SHA256_HASH"

      - name: Create release draft
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          set -e
          
          LATEST_TAG=${{ env.LATEST_TAG }}
          NEW_TAG=${{ env.NEW_TAG }}
          SHA256_HASH=${{ env.SHA256_HASH }}

          CHANGE_LOG=$(git --no-pager log ${LATEST_TAG}..HEAD --pretty=format:'%h - %an, %ar : %s')

          # Define the release notes template
          RELEASE_NOTES=$(cat <<EOF
          ## Release version ${NEW_TAG}
          Release sha256 is \`${SHA256_HASH}\`

          ## Configuration example
          \`\`\`yaml
          version: '2'
          plugins:
          - name: csharp
            wasm:
              url: https://github.com/DaredevilOSS/sqlc-gen-csharp/releases/download/${NEW_TAG}/sqlc-gen-csharp.wasm
              sha256: ${SHA256_HASH}
          \`\`\`
          ## Changelog 
          ${CHANGE_LOG}

          ## Contributors
          * @SockworkOrange
          EOF
          )

          # change file name to convention
          mv plugin.wasm sqlc-gen-csharp.wasm

          # Create a draft release
          gh release create ${NEW_TAG} sqlc-gen-csharp.wasm \
          --draft \
          --title "${NEW_TAG}" \
          --notes "${RELEASE_NOTES}"