main.yml

name: CI

on:
  push:
    branches:
      - main
  pull_request:
    branches:
      - main

jobs:

  build_default:
    name: build with default features
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4.2.2
      - uses: actions-rs/toolchain@v1.0.7
        with:
          toolchain: beta
          override: true
      - uses: actions-rs/cargo@v1.0.3
        with:
          command: build

  build_msrv:
    name: build with MSRV (1.66.1)
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4.2.2
      # Re-resolve Cargo.lock with minimal versions.
      # This only works with nightly. We pin to a specific version because
      # newer versions use lock file version 4, but the MSRV cargo does not
      # support that.
      - uses: dtolnay/rust-toolchain@master
        with:
          toolchain: nightly-2024-09-20
      - run: cargo update -Z minimal-versions
      # Now check that `cargo build` works with respect to the oldest possible
      # deps and the stated MSRV
      - uses: dtolnay/rust-toolchain@1.66.1
      - run: cargo build --all-features

  # TODO: this is filling up the disk space in CI. See if there is a way to
  # workaround it.

  # build_all_features:
  #   name: build all features combinations
  #   runs-on: ubuntu-latest

  #   steps:
  #     - uses: actions/checkout@v4.2.2
  #     - uses: dtolnay/rust-toolchain@stable
  #     - run: cargo install cargo-all-features
  #     # We check and then test because some test dependencies could help
  #     # a bugged build work, while a regular build would fail.
  #     # Note that this also builds each crate separately, which also helps
  #     # catching some issues.
  #     - run: cargo check-all-features
  #     # Build all tests. We don't run them to save time, since it's unlikely
  #     # that tests would fail due to feature combinations.
  #     - run: cargo test-all-features --no-run

  build_no_std:
    name: build with no_std
    runs-on: ubuntu-latest
    # Skip ed448 which does not support it.
    strategy:
      matrix:
        crate: [ristretto255, ed25519, p256, secp256k1, secp256k1-tr, rerandomized]
    steps:
    - uses: actions/checkout@v4.2.2
    - uses: dtolnay/rust-toolchain@master
      with:
        toolchain: stable
        targets: thumbv6m-none-eabi
    - run: cargo build -p frost-${{ matrix.crate }} --no-default-features --target thumbv6m-none-eabi
    - run: cargo build -p frost-${{ matrix.crate }} --no-default-features --features serialization --target thumbv6m-none-eabi

  test_beta:
    name: test on beta
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4.2.2
      - uses: actions-rs/toolchain@v1.0.7
        with:
          toolchain: beta
          override: true
      - uses: actions-rs/cargo@v1.0.3
        with:
          command: test
          args: --release --all-features

  clippy:
    name: Clippy
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4.2.2
        with:
          persist-credentials: false

      - uses: actions-rs/toolchain@v1.0.7
        with:
          toolchain: stable
          override: true

      - name: Check workflow permissions
        id: check_permissions
        uses: scherermichael-oss/action-has-permission@1.0.6
        with:
          required-permission: write
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - name: Run clippy action to produce annotations
        uses: actions-rs/clippy-check@v1.0.7
        if: ${{ steps.check_permissions.outputs.has-permission }}
        with:
          # GitHub displays the clippy job and its results as separate entries
          name: Clippy (stable) Results
          token: ${{ secrets.GITHUB_TOKEN }}
          args: --all-features --all-targets -- -D warnings

      - name: Run clippy manually without annotations
        if: ${{ !steps.check_permissions.outputs.has-permission }}
        run: cargo clippy --all-features --all-targets -- -D warnings

  fmt:
    name: Rustfmt
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4.2.2
        with:
          persist-credentials: false

      - uses: actions-rs/toolchain@v1.0.7
        with:
          toolchain: stable
          components: rustfmt
          override: true

      - uses: Swatinem/rust-cache@v2

      - uses: actions-rs/cargo@v1.0.3
        with:
          command: fmt
          args: --all -- --check

  gencode:
    name: Check if automatically generated code is up to date
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4.2.2
        with:
          persist-credentials: false

      - uses: actions-rs/toolchain@v1.0.7
        with:
          toolchain: stable
          components: rustfmt
          override: true

      - uses: Swatinem/rust-cache@v2

      - uses: actions-rs/cargo@v1.0.3
        with:
          command: run
          args: --bin gencode -- --check

  docs:
    name: Check Rust doc
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4.2.2
        with:
          persist-credentials: false

      - uses: actions-rs/toolchain@v1.0.7
        with:
          toolchain: stable
          profile: minimal
          override: true

      - uses: actions-rs/cargo@v1.0.3
        with:
          command: doc
          args: --no-deps --document-private-items --all-features

  actionlint:
    runs-on: ubuntu-latest
    continue-on-error: true
    steps:
      - uses: actions/checkout@v4.2.2
      - uses: reviewdog/action-actionlint@v1.57.0
        with:
          level: warning
          fail_on_error: false