name: Release Kata 2.x in snapcraft store
on:
  push:
    tags:
      - '2.*'
jobs:
  release-snap:
    runs-on: ubuntu-20.04
    steps:
      - name: Check out Git repository
        uses: actions/checkout@v2
        with:
          fetch-depth: 0

      - name: Install Snapcraft
        uses: samuelmeuli/action-snapcraft@v1
        with:
          snapcraft_token: ${{ secrets.snapcraft_token }}

      - name: Build snap
        run: |
          sudo apt-get install -y git git-extras
          kata_url="https://github.com/kata-containers/kata-containers"
          latest_version=$(git ls-remote --tags ${kata_url}  | egrep -o "refs.*" | egrep -v "\-alpha|\-rc|{}" | egrep -o "[[:digit:]]+\.[[:digit:]]+\.[[:digit:]]+" | sort -V -r | head -1)
          current_version="$(echo ${GITHUB_REF} | cut -d/ -f3)"
          # Check semantic versioning format (x.y.z) and if the current tag is the latest tag
          if echo "${current_version}" | grep -q "^[[:digit:]]\+\.[[:digit:]]\+\.[[:digit:]]\+$" && echo -e "$latest_version\n$current_version" | sort -C -V; then
            # Current version is the latest version, build it
            snapcraft -d snap --destructive-mode
          fi

      - name: Upload snap
        run: |
          snap_version="$(echo ${GITHUB_REF} | cut -d/ -f3)"
          snap_file="kata-containers_${snap_version}_amd64.snap"
          # Upload the snap if it exists
          if [ -f ${snap_file} ]; then
            snapcraft upload --release=stable ${snap_file}
          fi