release_rust.yaml

name: Release Rust Package

on:
  release:
    types:
      - created

jobs:
  release-rust:
    name: Build and publish on crates.io
    runs-on: ubuntu-latest
    steps:
    - name: Checkout
      uses: actions/checkout@v2

    - name: Bump Cargo version
      run: |
        python ./.github/scripts/cargo_version_bumper.py --target Cargo.toml "${{ github.ref_name }}"

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

    - name: Cache Cargo dependencies
      uses: actions/cache@v2
      with:
        path: |
          ~/.cargo/registry
          ~/.cargo/git
          target
        key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}

    - name: Check Cargo.toml version matches Release tag
      run: |
        CARGO_VERSION=$(grep '^version =' Cargo.toml | sed 's/.*"\(.*\)".*/\1/')
        if [ "${GITHUB_REF#refs/tags/}" != "$CARGO_VERSION" ]; then
          echo "Version mismatch: Cargo.toml ($CARGO_VERSION) doesn't match Release tag (${GITHUB_REF#refs/tags/})"
          exit 1
        fi

    - name: Publish to crates.io
      env:
        CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}
      run: cargo publish