name: CI Check
on:
  merge_group:
  pull_request:
  push:
    branches:
      - main
env:
  CARGO_TERM_COLOR: always
  # Disable incremental compilation.
  #
  # Incremental compilation is useful as part of an edit-build-test-edit cycle,
  # as it lets the compiler avoid recompiling code that hasn't changed. However,
  # on CI, we're not making small edits; we're almost always building the entire
  # project from scratch. Thus, incremental compilation on CI actually
  # introduces *additional* overhead to support making future builds
  # faster...but no future builds will ever occur in any given CI environment.
  #
  # See https://matklad.github.io/2021/09/04/fast-rust-builds.html#ci-workflow
  # for details.
  CARGO_INCREMENTAL: 0
  # Allow more retries for network requests in cargo (downloading crates) and
  # rustup (installing toolchains). This should help to reduce flaky CI failures
  # from transient network timeouts or other issues.
  CARGO_NET_RETRY: 10
  RUSTUP_MAX_RETRIES: 10
  # Don't emit giant backtraces in the CI logs.
  RUST_BACKTRACE: short

# Jobs launched for a PR event cancel the ongoing one for the same workflow + PR,
# Only retries (of the same run) for a Push event cancel the prior one.
concurrency:
  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
  cancel-in-progress: true

jobs:
  test:
    if: github.event.pull_request.draft == false
    name: Test
    runs-on: ubuntu-latest
    strategy:
      matrix:
        feature_set: [basic]
        include:
          - feature_set: basic
            features: --features default,light-test
    steps:
      - uses: actions/checkout@v2
      - uses: actions-rs/toolchain@v1
      - uses: noir-lang/noirup@v0.1.3
        with:
          toolchain: nightly
      - name: Download Circom
        run: |
          mkdir -p $HOME/bin
          curl -sSfL https://github.com/iden3/circom/releases/download/v2.1.6/circom-linux-amd64 -o $HOME/bin/circom
          chmod +x $HOME/bin/circom
          echo "$HOME/bin" >> $GITHUB_PATH
      - name: Download solc
        run: |
          curl -sSfL https://github.com/ethereum/solidity/releases/download/v0.8.4/solc-static-linux -o /usr/local/bin/solc
          chmod +x /usr/local/bin/solc
      - name: Execute compile.sh to generate .r1cs and .wasm from .circom
        run: ./folding-schemes/src/frontend/circom/test_folder/compile.sh
      - name: Execute compile.sh to generate .json from noir
        run: ./folding-schemes/src/frontend/noir/test_folder/compile.sh
      - name: Run tests
        uses: actions-rs/cargo@v1
        with:
          command: test
          args: --release --workspace --no-default-features ${{ matrix.features }}
      - name: Run Doc-tests
        uses: actions-rs/cargo@v1
        with:
          command: test
          args: --doc

  build:
    if: github.event.pull_request.draft == false
    name: Build target ${{ matrix.target }}
    runs-on: ubuntu-latest
    strategy:
      matrix:
        target:
          - wasm32-unknown-unknown
          - wasm32-wasi
          # Ignoring until clear usage is required
          # - wasm32-unknown-emscripten

    steps:
      - uses: actions/checkout@v3
      - uses: actions-rs/toolchain@v1
        with:
          override: false
          default: true
      - name: Add target
        run: rustup target add ${{ matrix.target }}
      - name: Wasm-compat build
        uses: actions-rs/cargo@v1
        with:
          command: build
          args: -p folding-schemes --no-default-features --target ${{ matrix.target }} --features "wasm, parallel"
      - name: Run wasm-compat script
        run: |
          chmod +x .github/scripts/wasm-target-test-build.sh
          .github/scripts/wasm-target-test-build.sh
        shell: bash

  examples:
    if: github.event.pull_request.draft == false
    name: Run examples & examples tests
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - uses: actions-rs/toolchain@v1
      - uses: noir-lang/noirup@v0.1.3
        with:
          toolchain: nightly
      - name: Download Circom
        run: |
          mkdir -p $HOME/bin
          curl -sSfL https://github.com/iden3/circom/releases/download/v2.1.6/circom-linux-amd64 -o $HOME/bin/circom
          chmod +x $HOME/bin/circom
          echo "$HOME/bin" >> $GITHUB_PATH
      - name: Download solc
        run: |
          curl -sSfL https://github.com/ethereum/solidity/releases/download/v0.8.4/solc-static-linux -o /usr/local/bin/solc
          chmod +x /usr/local/bin/solc
      - name: Execute compile.sh to generate .r1cs and .wasm from .circom
        run: ./folding-schemes/src/frontend/circom/test_folder/compile.sh
      - name: Execute compile.sh to generate .json from noir
        run: ./folding-schemes/src/frontend/noir/test_folder/compile.sh
      - name: Run examples tests
        run: cargo test --examples
      - name: Run examples
        run: cargo run --release --example 2>&1 | grep -E '^ ' | xargs -n1 cargo run --release --example

  fmt:
    if: github.event.pull_request.draft == false
    name: Rustfmt
    timeout-minutes: 30
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - uses: actions-rs/toolchain@v1
      - uses: Swatinem/rust-cache@v2
      - run: rustup component add rustfmt
      - uses: actions-rs/cargo@v1
        with:
          command: fmt
          args: --all --check

  clippy:
    if: github.event.pull_request.draft == false
    name: Clippy lint checks
    runs-on: ubuntu-latest
    strategy:
      matrix:
        feature_set: [basic, wasm]
        include:
          - feature_set: basic
            features: --features default,light-test
            # We only want to test `folding-schemes` package with `wasm` feature.
          - feature_set: wasm
            features: -p folding-schemes --features wasm,parallel --target wasm32-unknown-unknown
    steps:
      - uses: actions/checkout@v2
      - uses: actions-rs/toolchain@v1
        with:
          components: clippy
      - uses: Swatinem/rust-cache@v2
      - name: Add target
        run: rustup target add wasm32-unknown-unknown
      - name: Run clippy
        uses: actions-rs/cargo@v1
        with:
          command: clippy
          args: --no-default-features ${{ matrix.features }} -- -D warnings

  typos:
    if: github.event.pull_request.draft == false
    name: Spell Check with Typos
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Use typos with config file
        uses: crate-ci/typos@master
        with:
          config: .github/workflows/typos.toml