if_empty 0.3.0

Replace if/else checks for emptyness with a simple method call
Documentation
name: CD

on:
  release:
    types:
      - created

jobs:
  deploy:
    name: Deploy
    runs-on: ubuntu-latest
    steps:
      - name: Checkout sources
        uses: actions/checkout@v2

      - name: Install stable toolchain
        uses: actions-rs/toolchain@v1
        with:
          profile: minimal
          toolchain: stable
          override: true

      - name: Run cargo check
        uses: actions-rs/cargo@v1
        with:
          command: check

      - name: Publish derive macro
        continue-on-error: true
        uses: actions-rs/cargo@v1
        with:
          command: publish
          args: --manifest-path ./derive_macro/Cargo.toml
        env:
          CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_API_TOKEN }}

      - name: Publish if_empty
        uses: actions-rs/cargo@v1
        with:
          command: publish
        env:
          CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_API_TOKEN }}