checks.yml

name: Checks

# On Rust, GitHub Actions, and caching
# ===========
# Here's a list of things to keep in mind if you find yourself maintaining this
# CI:
#
# https://docs.github.com/en/actions/using-workflows/caching-dependencies-to-speed-up-workflows#matching-a-cache-key
#
# - Always install and select the desired Rust toolchain *before* running
#   `Swatinem/rust-cache`. This is because the active Rust toolchain is used as
#   a cache key.
# - You can use `rustup show` to install and select the right Rust toolchain if
#   you have a `rust-toolchain.toml` file:
#   https://github.com/rust-lang/rustup/issues/1397.
# - When caching Rust compilation artifacts, keep in mind that different `cargo`
#   commands will use different profiles
#   (https://doc.rust-lang.org/cargo/reference/profiles.html). Learn what you
#   can reuse between one job and another and don't assume two commands will
#   just share caches without conflicts.
# - Be extremely aware of cache thrashing a.k.a. churning. GitHub Actions' cache
#   allows for 10GiB of data which is easily exceeded if not careful.
#   Sometimes it's better not to cache than cache excessively.
#   Disabling cache writes for non-default branches altogether if cache churning
#   is unacceptably high is supposed to help with this.
# - Learn cache invalidation rules of `Swatinem/rust-cache` before making
#   changes, e.g. what happens when `rustc --version` changes or `Cargo.lock`
#   changes (or is missing).
# - The jobs dependency tree is the way it is to accommodate for sharing caches,
#   not necessarily because it makes logical sense to run one job after the
#   other. This is due to the fact that we can't share caches between jobs that
#   run in parallel.
# - `sccache` is a good alternative to `Swatinem/rust-cache`, but it behaves
#   poorly with GHA and often incurs into cache requests rate limits. We should
#   probably explore `sccache` with a different backend.
# - If a job makes good use of extra cores, consider give it a bigger machine.
#   GHA larger runners increase in cost linearly with the number of cores
#   (https://docs.github.com/en/billing/managing-billing-for-github-actions/about-billing-for-github-actions),
#   so you're not wasting money unless several cores are sitting idle for long.

on:
  merge_group:
    types: ["checks_requested"]
  push:
    branches: ["nightly", "stable"]
  pull_request:
    branches: ["nightly", "stable"]
    types: [opened, synchronize, reopened, ready_for_review]

env:
  CARGO_TERM_COLOR: always
  RUSTFLAGS: -D warnings
  FOUNDRY_PROFILE: ci

# Automatically cancels a job if a new commit if pushed to the same PR, branch, or tag.
# Source: <https://stackoverflow.com/a/72408109/5148606>
concurrency:
  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
  # Except in `nightly` and `stable` branches! Any cancelled job will cause the
  # CI run to fail, and we want to keep a clean history for major branches.
  cancel-in-progress: ${{ (github.ref != 'refs/heads/nightly') && (github.ref != 'refs/heads/stable') }}

jobs:
  check:
    name: check
    runs-on: ubicloud-standard-16
    timeout-minutes: 60
    if: github.event.pull_request.draft == false
    steps:
      - uses: actions/checkout@v4
      - uses: rui314/setup-mold@v1
      - name: Install Protoc
        uses: arduino/setup-protoc@v2
        with:
          version: "23.2"
          repo-token: ${{ secrets.GITHUB_TOKEN }}
      - name: Toolchain
        uses: actions-rs/toolchain@v1
        with:
          toolchain: stable
          override: true
          components: rustfmt, clippy
      - name: Install Rust
        run: rustup show && rustup install nightly && rustup component add rustfmt --toolchain nightly-x86_64-unknown-linux-gnu # Nightly is needed for our configuration of cargo fmt
      - name: Install cargo-risczero
        uses: taiki-e/install-action@v2
        with:
          tool: cargo-risczero@0.19
      - name: Install risc0-zkvm toolchain # Use the risc0 cargo extension to install the risc0 std library for the current toolchain
        run: cargo risczero install
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      - name: Run lint
        run: |
          if ! SKIP_GUEST_BUILD=1 make lint ; then
            echo "Linting or formatting errors detected, please run 'make lint-fix' to fix it";
            exit 1
          fi

  check_no_std:
    runs-on: ubicloud-standard-4
    if: github.event.pull_request.draft == false
    steps:
      - uses: actions/checkout@v4
      - name: Install Rust Bare Metal
        uses: actions-rs/toolchain@v1
        with:
          toolchain: stable
          target: thumbv6m-none-eabi
          override: true
      - name: Install Rust WASM
        uses: actions-rs/toolchain@v1
        with:
          toolchain: stable
          target: wasm32-unknown-unknown
          override: true
      - name: cargo install cargo-hack
        uses: taiki-e/install-action@cargo-hack
      - uses: Swatinem/rust-cache@v2
        with:
          save-if: ${{ github.ref == 'refs/heads/nightly' }}
      - name: Run check
        run: make check-no-std

  nextest:
    name: nextest
    runs-on: ubicloud-standard-16
    timeout-minutes: 60
    if: github.event.pull_request.draft == false
    steps:
      - uses: actions/checkout@v4
      - uses: rui314/setup-mold@v1
      - name: Install Protoc
        uses: arduino/setup-protoc@v2
        with:
          version: "23.2"
          repo-token: ${{ secrets.GITHUB_TOKEN }}
      - name: Toolchain
        uses: actions-rs/toolchain@v1
        with:
          toolchain: stable
          override: true
          components: rustfmt, clippy
      - name: Install Rust
        run: rustup show && rustup install nightly && rustup component add rustfmt --toolchain nightly-x86_64-unknown-linux-gnu # Nightly is needed for our configuration of cargo fmt
      - name: Install cargo-risczero
        uses: taiki-e/install-action@v2
        with:
          tool: cargo-risczero@0.19
      - name: Install risc0-zkvm toolchain # Use the risc0 cargo extension to install the risc0 std library for the current toolchain
        run: cargo risczero install
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        # `cargo-nextest` is much faster than standard `cargo test`.
      - uses: taiki-e/install-action@nextest
      - name: Install Rust
        run: rustup show
      - name: Run nextest
        run: SKIP_GUEST_BUILD=1 make test

  system-contracts:
    strategy:
      fail-fast: true

    name: Foundry project
    runs-on: ubicloud-standard-2
    if: github.event.pull_request.draft == false
    steps:
      - uses: actions/checkout@v4
        with:
          submodules: recursive

      - name: Install Foundry
        uses: foundry-rs/foundry-toolchain@v1
        with:
          version: nightly

      - name: Run Forge build
        run: |
          cd crates/evm/src/evm/system_contracts
          forge --version
          forge build --sizes
        id: build

      - name: Run Forge tests
        run: |
          cd crates/evm/src/evm/system_contracts
          forge test -vvv
        id: test