ci.yml

name: CI

on:
  push:
    branches: [ main ]
  pull_request:
    branches: [ main ]
  release:
    types: [ published ]
  workflow_dispatch:

jobs:
  test:
    name: Test
    runs-on: ubuntu-latest
    steps:
      - uses: taiki-e/install-action@v2
        with: { tool: just }
      - uses: actions/checkout@v4
      - uses: Swatinem/rust-cache@v2
        if: github.event_name != 'release' && github.event_name != 'workflow_dispatch'
      - run: just ci-test
      - name: Check semver
        uses: obi1kenobi/cargo-semver-checks-action@v2
      - name: Get local and published versions
        id: get-versions
        run: |
          echo "local_version=$(grep '^version =' Cargo.toml | sed -E 's/version = "([^"]*)".*/\1/')" >> $GITHUB_OUTPUT
          CRATE_NAME=$(grep '^name =' Cargo.toml | head -1 | sed -E 's/name = "(.*)"/\1/')
          PUBLISHED_VERSION=$(cargo search ${CRATE_NAME} | grep "^${CRATE_NAME} =" | sed -E 's/.* = "(.*)".*/\1/')
          echo "published_version=${PUBLISHED_VERSION}" >> $GITHUB_OUTPUT
      - name: Test that we haven't published current version yet
        run: |
          LOCAL_VERSION=${{ steps.get-versions.outputs.local_version }}
          PUBLISHED_VERSION=${{ steps.get-versions.outputs.published_version }}
          if [ "$LOCAL_VERSION" = "$PUBLISHED_VERSION" ]; then
            echo "The current crate version ($LOCAL_VERSION) has already been published."
            exit 1
          else
            echo "The current crate version ($LOCAL_VERSION) has not been published yet."
          fi

  msrv:
    name: Test MSRV
    runs-on: ubuntu-latest
    steps:
      - uses: taiki-e/install-action@v2
        with: { tool: just }
      - uses: actions/checkout@v4
      - uses: Swatinem/rust-cache@v2
        if: github.event_name != 'release' && github.event_name != 'workflow_dispatch'
      - name: Read crate metadata
        id: metadata
        run: echo "rust-version=$(sed -ne 's/rust-version *= *\"\(.*\)\"/\1/p' Cargo.toml)" >> $GITHUB_OUTPUT
      - name: Install Rust
        uses: dtolnay/rust-toolchain@stable
        with:
          toolchain: ${{ steps.metadata.outputs.rust-version }}
      - run: just ci-test-msrv

  publish:
    name: Publish to crates.io
    if: startsWith(github.ref, 'refs/tags/')
    needs: [ test, msrv ]
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Publish to crates.io
        run: cargo publish
        env:
          CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}