version: 2
jobs:
  # Job used for testing
  test:
    docker:
      - image: circleci/rust:latest

    steps:
      - checkout
      - run:
          name: Pull submodules
          command: |
            # git pull --recurse-submodules
            git submodule sync --recursive
            git submodule update --recursive --init
      - restore_cache:
          keys:
            - v4-test-cargo-cache-linux-{{ arch }}-{{ checksum "Cargo.lock" }}
      - run: sudo apt-get install -y cmake
      - run: make test
      - save_cache:
          paths:
            - /usr/local/cargo/registry
            - target/debug/.fingerprint
            - target/debug/build
            - target/debug/deps
          key: v4-test-cargo-cache-linux-{{ arch }}-{{ checksum "Cargo.lock" }}

  test-and-build:
    docker:
      - image: circleci/rust:latest

    steps:
      - checkout
      - run:
          name: Pull submodules
          command: |
            # git pull --recurse-submodules
            git submodule sync --recursive
            git submodule update --recursive --init
      - restore_cache:
          keys:
            - v4-cargo-cache-linux-{{ arch }}-{{ checksum "Cargo.lock" }}
      - run: sudo apt-get install -y cmake
      - run:
          name: Execute tests
          command: make test
      - run:
          name: Make release build
          command: |
            make release
            mkdir -p artifacts
            VERSION=$(cargo pkgid | cut -d# -f2 | cut -d: -f2)
            GIT_VERSION=$(git describe --exact-match --tags)
            echo "${VERSION}" >> artifacts/version
            echo "${GIT_VERSION}" >> artifacts/git_version
            cp ./target/release/wasmer ./artifacts/$(./binary-name.sh)
      - persist_to_workspace:
          root: .
          paths:
            - artifacts
      - save_cache:
          paths:
            - /usr/local/cargo/registry
            - target/debug/.fingerprint
            - target/debug/build
            - target/debug/deps
            - target/release/.fingerprint
            - target/release/build
            - target/release/deps
          key: v4-cargo-cache-linux-{{ arch }}-{{ checksum "Cargo.lock" }}

  test-and-build-macos:
    macos:
      xcode: "9.0"

    steps:
      - checkout
      - run:
          name: Pull submodules
          command: |
            # git pull --recurse-submodules
            git submodule sync --recursive
            git submodule update --recursive --init
      - restore_cache:
          keys:
            - v4-cargo-cache-darwin-{{ arch }}-{{ checksum "Cargo.lock" }}
      - run:
          name: Install CMAKE
          command: |
            curl -O https://cmake.org/files/v3.4/cmake-3.4.1-Darwin-x86_64.tar.gz
            tar xf cmake-3.4.1-Darwin-x86_64.tar.gz
            export PATH="`pwd`/cmake-3.4.1-Darwin-x86_64/CMake.app/Contents/bin:$PATH"
      - run:
          name: Install Rust
          command: |
            curl https://sh.rustup.rs -sSf | sh -s -- -y
            export PATH="$HOME/.cargo/bin:$PATH"
            cargo --version
      - run:
          name: Execute tests
          command: |
            export PATH="`pwd`/cmake-3.4.1-Darwin-x86_64/CMake.app/Contents/bin:$PATH"
            export PATH="$HOME/.cargo/bin:$PATH"
            make test
      - run:
          name: Make release build
          command: |
            export PATH="`pwd`/cmake-3.4.1-Darwin-x86_64/CMake.app/Contents/bin:$PATH"
            export PATH="$HOME/.cargo/bin:$PATH"
            make release
            mkdir -p artifacts
            # VERSION=$(cargo pkgid | cut -d# -f2 | cut -d: -f2)
            # echo "${VERSION}" >> artifacts/version
            cp ./target/release/wasmer ./artifacts/$(./binary-name.sh)
      - persist_to_workspace:
          root: .
          paths:
            - artifacts
      - save_cache:
          paths:
            - /usr/local/cargo/registry
            - target/debug/.fingerprint
            - target/debug/build
            - target/debug/deps
            - target/release/.fingerprint
            - target/release/build
            - target/release/deps
          key: v4-cargo-cache-darwin-{{ arch }}-{{ checksum "Cargo.lock" }}

  publish-github-release:
    docker:
      - image: cibuilds/github
    steps:
      - attach_workspace:
          at: .
      - run:
          name: "Publish Release on GitHub"
          command: |
            # go get github.com/tcnksm/ghr
            # VERSION=$(git log -1 --pretty=%B)
            # VERSION=$(./artifacts/ --version)
            VERSION=$(cat ./artifacts/version)
            rm ./artifacts/version
            # VERSION_TAG=${CIRCLE_TAG}
            VERSION_TAG=$(cat ./artifacts/git_version)
            # VERSION_TAG=$(git describe --exact-match --tags)
            if [ "$VERSION" == "$VERSION_TAG" ]; then
                echo "Versions match, publishing to Github"
                ghr -t ${GITHUB_TOKEN} -u ${CIRCLE_PROJECT_USERNAME} -r ${CIRCLE_PROJECT_REPONAME} -c ${CIRCLE_SHA1} -delete ${VERSION} ./artifacts/
            else
                echo "Versions don't match. Wasmer output version (wasmer --version) is ${VERSION} while Git tag is ${VERSION_TAG}"
                exit 1
            fi

workflows:
  version: 2
  main:
    jobs:
      - test:
          filters:
            branches:
              ignore: master
      - test-and-build:
          filters:
            branches:
              only: master
      - test-and-build-macos:
          filters:
            branches:
              only: master
      # :
      #     filters:
      #       tags:
      #         only: /^\d+\.\d+\.\d+$/

      - publish-github-release:
          requires:
            - test-and-build
            - test-and-build-macos
          filters:
            tags:
              only: /^\d+\.\d+\.\d+$/