github-release.yml

name: Create release

on:
  push:
    branches:
      - main

jobs:
  github-release:
    name: Create GitHub Release
    runs-on: ubuntu-latest
    permissions:
      contents: write # IMPORTANT: mandatory for making GitHub Releases

    steps:
      - uses: actions/checkout@v4
        with:
          persist-credentials: false
      - name: Extract version from pyproject.toml
        id: get_version
        run: |
          VERSION=$(grep -m 1 'version = ' pyproject.toml | cut -d '"' -f 2)
          echo "VERSION=$VERSION" >> $GITHUB_ENV
      - name: Extract changelog notes for current version
        id: get_changelog
        run: |
          VERSION=${{ env.VERSION }}
          echo "Extracting changelog for version v$VERSION"
          
          # Find the start of the current version section
          START_LINE=$(grep -n "## \[v$VERSION\] - " CHANGELOG.md | cut -d: -f1)
          
          if [ -z "$START_LINE" ]; then
            echo "Warning: No changelog entry found for version v$VERSION"
            echo "CHANGELOG_NOTES=" >> $GITHUB_ENV
            exit 0
          fi
          
          # Find the start of the next version section (previous version)
          NEXT_VERSION_LINE=$(tail -n +$((START_LINE + 1)) CHANGELOG.md | grep -n "^## \[v.*\] - " | head -1 | cut -d: -f1)
          
          if [ -z "$NEXT_VERSION_LINE" ]; then
            # No next version found, extract from current version till end of file
            CHANGELOG_CONTENT=$(tail -n +$START_LINE CHANGELOG.md)
          else
            # Extract content from current version header to before next version
            END_LINE=$((START_LINE + NEXT_VERSION_LINE - 1))
            CHANGELOG_CONTENT=$(sed -n "$START_LINE,$((END_LINE - 1))p" CHANGELOG.md)
          fi
          
          # Clean up the content but preserve the blank line after the header
          # First, get the header line and add a blank line after it
          HEADER_LINE=$(echo "$CHANGELOG_CONTENT" | head -1)
          CONTENT_LINES=$(echo "$CHANGELOG_CONTENT" | tail -n +2 | sed '/^$/d' | sed 's/^[[:space:]]*//' | sed 's/[[:space:]]*$//')
          
          # Combine header + blank line + content
          CHANGELOG_CONTENT=$(printf "%s\n\n%s" "$HEADER_LINE" "$CONTENT_LINES")
          
          # Escape for GitHub Actions
          echo "CHANGELOG_NOTES<<EOF" >> $GITHUB_ENV
          echo "$CHANGELOG_CONTENT" >> $GITHUB_ENV
          echo "EOF" >> $GITHUB_ENV
      - name: Create GitHub Release
        env:
          GITHUB_TOKEN: ${{ github.token }}
        run: |
          if [ -n "$CHANGELOG_NOTES" ]; then
            gh release create "v$VERSION" \
              --repo "$GITHUB_REPOSITORY" \
              --title "v$VERSION" \
              --notes "$CHANGELOG_NOTES"
          else
            gh release create "v$VERSION" \
              --repo "$GITHUB_REPOSITORY" \
              --title "v$VERSION" \
              --notes "Release v$VERSION"
          fi