version: 2

jobs:
  build:
    docker:
      - image: rustlang/rust:nightly-slim
    steps:
      - checkout
      - run:
          name: Version information
          command: rustc --version; cargo --version; rustup --version
      - run:
          name: Calculate dependencies
          command: cargo generate-lockfile
      - restore_cache:
          keys:
            - v4-cargo-cache-{{ arch }}-{{ checksum "Cargo.lock" }}
      - run:
          name: Build libsnark
          command: LIBSNARK_SOURCE_PATH=$HOME/libsnark ./build_libsnark.sh
      - run:
          name: Build
          command: WITH_LIBSNARK=1 LIBSNARK_SOURCE_PATH=$HOME/libsnark RUSTFLAGS="-D warnings" ./build.sh
      - save_cache:
          paths:
            - /usr/local/cargo/registry
            - target/debug/.fingerprint
            - target/debug/build
            - target/debug/deps
          key: v4-cargo-cache-{{ arch }}-{{ checksum "Cargo.lock" }}
  test:
    docker:
      - image: rustlang/rust:nightly-slim
    steps:
      - checkout
      - run:
          name: Version information
          command: rustc --version; cargo --version; rustup --version
      - run:
          name: Calculate dependencies
          command: cargo generate-lockfile
      - restore_cache:
          keys:
            - v4-cargo-cache-{{ arch }}-{{ checksum "Cargo.lock" }}
      - run:
          name: Check format
          command: rustup component add rustfmt-preview; cargo fmt --all -- --check
      - run:
          name: Build libsnark
          command: LIBSNARK_SOURCE_PATH=$HOME/libsnark ./build_libsnark.sh
      - run:
          name: Build
          command: WITH_LIBSNARK=1 LIBSNARK_SOURCE_PATH=$HOME/libsnark RUSTFLAGS="-D warnings" ./build.sh
      - run:
          name: Run tests
          command: WITH_LIBSNARK=1 LIBSNARK_SOURCE_PATH=$HOME/libsnark RUSTFLAGS="-D warnings" cargo test --release -- --test-threads=1
      - run:
          name: Generate code coverage report
          command: ./scripts/cov.sh
  wasm_test:
    docker:
      - image: rustlang/rust:nightly-slim
    steps:
      - checkout
      - run:
          name: Version information
          command: rustc --version; cargo --version; rustup --version
      - run:
          name: Calculate dependencies
          command: cargo generate-lockfile
      - restore_cache:
          keys:
            - v4-cargo-cache-{{ arch }}-{{ checksum "Cargo.lock" }}
      - run:
          name: Download wasm32 target
          command: rustup target add wasm32-unknown-unknown
      - run:
          name: Run tests with WASM enabled
          command: cd zokrates_core && cargo test --release --features wasm -- --test-threads=1
  integration_test:
    docker:
      - image: rustlang/rust:nightly-slim
    steps:
      - checkout
      - run:
          name: Version information
          command: rustc --version; cargo --version; rustup --version
      - run:
          name: Calculate dependencies
          command: cargo generate-lockfile
      - restore_cache:
          keys:
            - v4-cargo-cache-{{ arch }}-{{ checksum "Cargo.lock" }}
      - run:
          name: Build libsnark
          command: LIBSNARK_SOURCE_PATH=$HOME/libsnark ./build_libsnark.sh
      - run:
          name: Run integration tests
          command: WITH_LIBSNARK=1 LIBSNARK_SOURCE_PATH=$HOME/libsnark RUSTFLAGS="-D warnings" cargo test --release -- --ignored
  deploy:
    docker:
      - image: circleci/python
    steps:
      - checkout
      - setup_remote_docker:
          docker_layer_caching: true
      - run:
          name: Release
          command: ./scripts/release.sh

workflows:
  version: 2
  build-test-and-deploy:
    jobs:
      - build
      - test
      - wasm_test
      - integration_test
      - deploy:
          filters:
            branches:
              only:
                - master
          requires:
            - build
            - test
            - integration_test