on:
  release:
    types: [published, edited]

name: Check SemVer compliance

jobs:
  prepare:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - uses: actions-rs/toolchain@v1
        with:
          toolchain: nightly-2022-08-03
          override: true
          components: rustfmt, clippy

  semver:
    runs-on: ubuntu-latest
    steps:
      - uses: actions-rs/cargo@v1
        with:
          command: install
          args: --git https://github.com/rust-lang/rust-semverver
      - run: eval "current_version=$(grep -e '^version = .*$' Cargo.toml | cut -d ' ' -f 3)"
      - run: cargo semver | tee semver_out
      - run: (head -n 1 semver_out | grep "\-> $current_version") || (echo "versioning mismatch" && return 1)