package_version_check.yml

name: Package Version Checker

on:
  pull_request:
    branches:
      - 'main'

jobs:
  compare-package-version-with-latest-release-version:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v2
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - name: List branches
        run: |
          git fetch --all
          release_branches=$(git branch -r | grep -E 'origin/release-[0-9]+\.[0-9]+' | sed 's/origin\///')
          echo "Release branches:"
          echo "$release_branches"
          echo "$release_branches" > release_branches.txt

      - name: Pick latest release branch
        run: |
          release_branches=$(cat release_branches.txt)
          latest_branch=$(echo "$release_branches" | sort -t. -k1,1 -k2,2 -Vr | head -n 1)
          echo "Latest release branch: $latest_branch"
          latest_version=$(echo "$latest_branch" | sed -E 's/release-([0-9]+\.[0-9]+)/\1/' | sed 's/^[ \t]*//')
          echo "Latest release version: $latest_version"
          echo "$latest_version" > latest_release_version.txt

      - name: Read Cargo.toml version
        run: |
          cargo_version=$(grep -oP '(?<=^version = ")[0-9]+\.[0-9]+' Cargo.toml)
          echo "Cargo.toml version: $cargo_version"
          echo "$cargo_version" > cargo_version.txt

      - name: Compare versions
        run: |
          latest_version=$(cat latest_release_version.txt)
          cargo_version=$(cat cargo_version.txt)

          latest_major=$(echo $latest_version | cut -d. -f1)
          latest_minor=$(echo $latest_version | cut -d. -f2)

          cargo_major=$(echo $cargo_version | cut -d. -f1)
          cargo_minor=$(echo $cargo_version | cut -d. -f2)

          if [ "$cargo_major" -lt "$latest_major" ] || { [ "$cargo_major" -eq "$latest_major" ] && [ "$cargo_minor" -le "$latest_minor" ]; }; then
            echo "Error: Cargo.toml package version $cargo_version is not larger than $latest_version"
            exit 1
          else
            echo "Cargo.toml version $cargo_version is larger than or equal to $latest_version"
          fi