name: Release

on:
  release:
    types: [published]

jobs:
  check-version:
    name: Check version

    runs-on: ubuntu-latest

    steps:
      - name: Checkout code
        uses: actions/checkout@v2

      - name: Check version
        run: |
          [[ $(grep -m 1 -oP 'version = "(.*)"' Cargo.toml | sed -rn 's/.*"(.*)"/v\1/p') == ${{ github.event.release.tag_name }} ]]

  publish:
    name: Publish release

    runs-on: ubuntu-latest
    needs: check-version

    steps:
      - name: Checkout code
        uses: actions/checkout@v2

      - name: Install Rust (stable)
        uses: actions-rs/toolchain@v1
        with:
          toolchain: stable

      - name: Login to crates.io
        env:
          TOKEN: ${{ secrets.CRATES_IO_TOKEN }}

        run: cargo login $TOKEN

      - name: Publish dry-run
        run: cargo publish --dry-run

      - name: Publish
        run: cargo publish