publish.yml

name: Publish to crates.io

on:
  push:
    branches:
      - main
    paths:
      - "Cargo.toml"

jobs:
  publish:
    runs-on: [self-hosted, linux]

    steps:
    - name: Check out repository
      uses: actions/checkout@v3

    - name: Set up Rust
      uses: actions-rs/toolchain@v1
      with:
        toolchain: stable
        override: true

    - name: Check for version changes
      id: check_version
      run: |
        old_version=$(git show HEAD~1:Cargo.toml | grep '^version =' | sed 's/version = "\(.*\)"/\1/')
        new_version=$(grep '^version =' Cargo.toml | sed 's/version = "\(.*\)"/\1/')
        echo "Old version: $old_version"
        echo "New version: $new_version"
        if [ "$old_version" = "$new_version" ]; then
          echo "Version has not changed. Skipping publish."
          exit 0
        fi

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