rust.yml

name: rust

on:
  push:
    branches: ["master"]
  pull_request:

  workflow_dispatch:

concurrency:
  group: rust-${{ github.head_ref || github.ref || github.run_id }}
  cancel-in-progress: true

env:
  # Always colorize output.
  CARGO_TERM_COLOR: always
  # Disable incremental compilation.
  CARGO_INCREMENTAL: 0
  # Allow more retries for network requests in cargo (downloading crates).
  CARGO_NET_RETRY: 10
  # Allow more retries for network requests in rustup (downloading toolchains).
  RUSTUP_MAX_RETRIES: 10
  # Don't emit giant backtraces in the CI logs.
  RUST_BACKTRACE: short
  # RUSTFLAGS: -D warnings
  RUSTDOCFLAGS: -D warnings

jobs:
  just-lint:
    runs-on: ubuntu-latest
    steps:
      - name: Install Just
        uses: extractions/setup-just@v1

      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Install Rust toolchain
        run: |
          rustup toolchain install stable --profile minimal
          echo "RUST_VERSION_HASH=$(rustc --version | sha256sum | awk '{print $1}')" >> $GITHUB_ENV

      - name: Cache cargo
        uses: actions/cache@v3
        with:
          path: |
            ~/.cargo/
            ./target/debug/build/
          key: ${{ runner.os }}-rust-${{ env.RUST_VERSION_HASH }}-${{ hashFiles('./Cargo.lock') }}

      - name: Run linter
        run: just lint

  just-fmt:
    runs-on: ubuntu-latest
    steps:
      - name: Install Just
        uses: extractions/setup-just@v1

      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Install minimal nightly rustfmt
        uses: actions-rs/toolchain@v1
        with:
          profile: minimal
          toolchain: nightly
          components: rustfmt

      - name: Cache cargo
        uses: actions/cache@v3
        with:
          path: |
            ~/.cargo/
            ./target/debug/build/
          key: ${{ runner.os }}-rust-${{ env.RUST_VERSION_HASH }}-${{ hashFiles('./Cargo.lock') }}

      - name: Run formatter
        run: just fmt-check

  just-test:
    runs-on: ubuntu-latest
    needs: [just-lint, just-fmt]

    steps:
      - name: Install Just
        uses: extractions/setup-just@v1

      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Install Rust toolchain
        run: |
          rustup toolchain install stable --profile minimal
          echo "RUST_VERSION_HASH=$(rustc --version | sha256sum | awk '{print $1}')" >> $GITHUB_ENV

      - name: Cache cargo
        uses: actions/cache@v3
        with:
          path: |
            ~/.cargo/
            ./target/debug/build/
          key: ${{ runner.os }}-rust-${{ env.RUST_VERSION_HASH }}-${{ hashFiles('./Cargo.lock') }}

      - name: Install dependencies
        uses: taiki-e/install-action@v2
        with:
          tool: nextest

      - name: Run tests
        run: just test