version-check.yml

name: Version Check

on:
  pull_request:
    branches:
      - main
    paths:
      - 'packages/**'

jobs:
  version-check:
    name: Check Package Versions
    runs-on: ubuntu-latest

    permissions: write-all

    steps:
      - name: Checkout PR branch
        uses: actions/checkout@v3
        with:
          ref: ${{ github.event.pull_request.head.sha }}
          fetch-depth: 0

      - name: Get PR package versions
        id: pr_versions
        run: |
          PR_VANILLA_VERSION=$(jq -r .version packages/vanilla/package.json)
          PR_REACT_VERSION=$(jq -r .version packages/react/package.json)
          echo "pr_vanilla=$PR_VANILLA_VERSION" >> $GITHUB_OUTPUT
          echo "pr_react=$PR_REACT_VERSION" >> $GITHUB_OUTPUT

      - name: Checkout main branch
        run: |
          git fetch origin main
          git checkout origin/main

      - name: Get main package versions
        id: main_versions
        run: |
          MAIN_VANILLA_VERSION=$(jq -r .version packages/vanilla/package.json)
          MAIN_REACT_VERSION=$(jq -r .version packages/react/package.json)
          echo "main_vanilla=$MAIN_VANILLA_VERSION" >> $GITHUB_OUTPUT
          echo "main_react=$MAIN_REACT_VERSION" >> $GITHUB_OUTPUT

      - name: Prepare comment message
        id: prepare_message
        if: steps.pr_versions.outputs.pr_vanilla == steps.main_versions.outputs.main_vanilla || steps.pr_versions.outputs.pr_react == steps.main_versions.outputs.main_react
        run: |
          MESSAGE="Found changes in \`packages/**\` but the version numbers remained the same.\n We ideally want to increment the version numbers when making changes to the packages.\n\n@${{ github.event.pull_request.user.login }}, please consider bumping the version of the following packages:"
          if [ "${{ steps.pr_versions.outputs.pr_vanilla }}" = "${{ steps.main_versions.outputs.main_vanilla }}" ]; then
            MESSAGE="$MESSAGE <br /> - \`packages/vanilla\`: Current version in main: \`${{ steps.main_versions.outputs.main_vanilla }}\`"
          fi
          if [ "${{ steps.pr_versions.outputs.pr_react }}" = "${{ steps.main_versions.outputs.main_react }}" ]; then
            MESSAGE="$MESSAGE <br /> - \`packages/react\`: Current version in main: \`${{ steps.main_versions.outputs.main_react }}\`"
          fi
          echo "message=$MESSAGE" >> $GITHUB_OUTPUT

      - name: Comment on PR
        if: steps.pr_versions.outputs.pr_vanilla == steps.main_versions.outputs.main_vanilla || steps.pr_versions.outputs.pr_react == steps.main_versions.outputs.main_react
        uses: thollander/actions-comment-pull-request@v2
        with:
          message: ${{ steps.prepare_message.outputs.message }}
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}