version-bump.yml

name: Bump package.json version

on:
  push:
    branches: [main]

permissions:
  contents: write

jobs:
  update-version:
    if: github.actor != 'github-actions[bot]'
    runs-on: ubuntu-latest

    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Bump package version and tag
        shell: bash
        run: |
          set -euo pipefail

          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git fetch --tags

          current_version="$(node -p "require('./package.json').version")"
          latest_tag="$(git tag -l 'v[0-9]*.[0-9]*.[0-9]*' --sort=-v:refname | head -n1 || true)"
          latest_tag_version="${latest_tag#v}"

          if [[ -z "${latest_tag_version}" || "${latest_tag_version}" == "${latest_tag}" ]]; then
            base_version="${current_version}"
          else
            highest_version="$(printf '%s\n%s\n' "${current_version}" "${latest_tag_version}" | sort -V | tail -n1)"
            base_version="${highest_version}"
          fi

          IFS='.' read -r major minor patch <<< "${base_version}"
          next_version="${major}.${minor}.$((patch + 1))"
          next_tag="v${next_version}"

          npm version "${next_version}" --no-git-tag-version
          git add package.json
          git commit -m "Bump version to ${next_tag}"
          git tag "${next_tag}"
          git push origin main --follow-tags