name: CI

on:
  push:
    branches: [ "main" ]
  pull_request:
    branches: [ "main" ]
  workflow_dispatch:

env:
  # Show colored output in CI.
  CARGO_TERM_COLOR: always
  # Show full panics.
  RUST_BACKTRACE: "full"
  # Increase thread stack size to 8 megabytes.
  RUST_MIN_STACK: 8000000
  # Fail on documentation warnings.
  RUSTDOCFLAGS: '-D warnings'
  # Enable debug information generation for build dependencies.
  CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG: true

jobs:
  # Run format separately.
  #
  # This will fast-cancel other CI early if this fails.
  #
  # `cargo fmt` checks _all_ code, regardless of the OS
  # or any `#[cfg]`'s, so this only needs to run on Linux.
  fmt:
    runs-on: ubuntu-latest
    steps:
    - name: Checkout
      uses: actions/checkout@v4
      with:
        submodules: recursive
    - name: Format
      run: cargo fmt --all --check

  # Run typo checker separately.
  # This will fast-cancel other CI early if this fails.
  typo:
    runs-on: ubuntu-latest
    steps:
    - name: Checkout
      uses: actions/checkout@v4
    - name: Spell Check
      uses: crate-ci/typos@master

  # All other CI.
  ci:
    runs-on: ${{ matrix.os }}

    strategy:
      matrix:
        os: [windows-latest, macos-latest, ubuntu-latest]

    steps:
    - name: Checkout
      uses: actions/checkout@v4
      with:
        submodules: recursive

    - name: Install Rust
      uses: dtolnay/rust-toolchain@master
      with:
        toolchain: ${{ matrix.rust }}
        components: clippy

    - name: Cache
      uses: actions/cache@v4
      with:
        path: target
        key: ${{ matrix.os }}

    - name: Download monerod
      uses: ./.github/actions/monerod-download

    - name: Documentation
      run: cargo doc --workspace --all-features --no-deps

    - name: Clippy (fail on warnings)
      run: cargo clippy --workspace --all-features --all-targets -- -D warnings

    # HACK: how to test both DB backends that are feature-gated?
    - name: Test
      run: |
        cargo test --all-features --workspace
        cargo test --package cuprate-blockchain --no-default-features --features redb --features service

    # TODO: upload binaries with `actions/upload-artifact@v3`
    - name: Build
      run: cargo build --all-features --all-targets --workspace