autorelease.yml

name: Auto-release on master

on:
  push:
    branches: [master]

permissions:
  contents: write

jobs:
  release:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0 # get full history so we can diff

      - name: Extract version from commit message
        id: get_version
        run: |
          msg='${{ github.event.head_commit.message }}'
          if [[ "$msg" =~ update[[:space:]]+to[[:space:]]+([0-9]+\.[0-9]+\.[0-9]+) ]]; then
            ver="${BASH_REMATCH[1]}"
            echo "version=$ver" >> $GITHUB_OUTPUT
          else
            echo "Commit message does not match pattern - skipping release."
            echo "version=" >> $GITHUB_OUTPUT
          fi

      - name: Skip when no version
        if: ${{ steps.get_version.outputs.version == '' }}
        run: echo "Nothing to do."

      - name: Get diff of README endpoint section
        if: ${{ steps.get_version.outputs.version != '' }}
        id: get_diff
        run: |
          # Get section from old commit
          git show HEAD^:README.md | awk '/^## Documentation for API endpoints/ {f=1; next} /^## / && f {exit} f' > old.txt || true

          # Get section from current commit
          awk '/^## Documentation for API endpoints/ {f=1; next} /^## / && f {exit} f' README.md > new.txt || true

          # Normalize and diff
          diff -u old.txt new.txt > endpoints.diff || true

          echo "diff written"
          cat endpoints.diff

      - name: Generate release notes
        if: ${{ steps.get_version.outputs.version != '' }}
        id: relnotes
        run: |
          ADD=()
          REMOVE=()

          # Extract only meaningful +/- lines (skip diff headers)
          while IFS= read -r line; do
            clean="${line:1}"  # strip leading + or -
            clean="${clean#*ManagementApi* | }"  # strip the prefix
            if [[ "$line" == +* ]]; then
              ADD+=("$clean")
            elif [[ "$line" == -* ]]; then
              REMOVE+=("$clean")
            fi
          done < <(grep '^[+-]' endpoints.diff | grep -v '^+++' | grep -v '^---')

          {
            echo "## Summary"
            echo "### Added endpoints"
            if [ ${#ADD[@]} -eq 0 ]; then
              echo "- None"
            else
              printf -- "- %s\n" "${ADD[@]}"
            fi

            echo ""
            echo "### Removed endpoints"
            if [ ${#REMOVE[@]} -eq 0 ]; then
              echo "- None"
            else
              printf -- "- %s\n" "${REMOVE[@]}"
            fi
          } > release-notes.md

          echo "notes_file=release-notes.md" >> "$GITHUB_OUTPUT"

      - name: Create Git tag
        if: ${{ steps.get_version.outputs.version != '' }}
        run: |
          ver="v${{ steps.get_version.outputs.version }}"
          git tag -f "$ver" "$GITHUB_SHA"
          git push -f origin "refs/tags/$ver"

      - name: Create GitHub release
        if: ${{ steps.get_version.outputs.version != '' }}
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          ver="${{ steps.get_version.outputs.version }}"
          notes_file="${{ steps.relnotes.outputs.notes_file }}"

          if gh release view "v$ver" &>/dev/null; then
            gh release delete "v$ver" --yes
          fi

          gh release create "v$ver" \
            --title "v$ver" \
            --notes-file "$notes_file" \
            --target "$GITHUB_SHA"