version: 2.1

commands:
  submodules:
    steps:
      - run:
          name: "Pull submodules"
          command: git submodule update --init
  install-xtensa-toolchain:
    parameters:
      variant:
        type: string
    steps:
      - run:
          name: "Install Xtensa toolchain"
          command: |
            curl -L https://github.com/espressif/crosstool-NG/releases/download/esp-2020r2/xtensa-esp32-elf-gcc8_2_0-esp-2020r2-<<parameters.variant>>.tar.gz -o xtensa-esp32-elf-gcc8_2_0-esp-2020r2-<<parameters.variant>>.tar.gz
            sudo tar -C /usr/local -xf xtensa-esp32-elf-gcc8_2_0-esp-2020r2-<<parameters.variant>>.tar.gz
            sudo ln -s /usr/local/xtensa-esp32-elf/bin/xtensa-esp32-elf-ld /usr/local/bin/xtensa-esp32-elf-ld
            rm xtensa-esp32-elf-gcc8_2_0-esp-2020r2-<<parameters.variant>>.tar.gz
  llvm-source-linux:
    steps:
      - restore_cache:
          keys:
            - llvm-source-12-v1
      - run:
          name: "Fetch LLVM source"
          command: make llvm-source
      - save_cache:
          key: llvm-source-12-v1
          paths:
            - llvm-project/clang/lib/Headers
            - llvm-project/clang/include
            - llvm-project/lld/include
            - llvm-project/llvm/include
  hack-ninja-jobs:
    steps:
      - run:
          name: "Hack Ninja to use less jobs"
          command: |
            echo -e '#!/bin/sh\n/usr/bin/ninja -j3 "$@"' > /go/bin/ninja
            chmod +x /go/bin/ninja
  build-binaryen-linux:
    steps:
      - restore_cache:
          keys:
            - binaryen-linux-v1
      - run:
          name: "Build Binaryen"
          command: |
            make binaryen
      - save_cache:
          key: binaryen-linux-v1
          paths:
            - build/wasm-opt
  test-linux:
    parameters:
      llvm:
        type: string
    steps:
      - checkout
      - submodules
      - run:
          name: "Install apt dependencies"
          command: |
            echo 'deb https://apt.llvm.org/buster/ llvm-toolchain-buster-<<parameters.llvm>> main' | sudo tee /etc/apt/sources.list.d/llvm.list
            wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add -
            sudo apt-get update
            sudo apt-get install --no-install-recommends \
                llvm-<<parameters.llvm>>-dev \
                clang-<<parameters.llvm>> \
                libclang-<<parameters.llvm>>-dev \
                lld-<<parameters.llvm>> \
                gcc-avr \
                avr-libc \
                cmake \
                ninja-build
      - hack-ninja-jobs
      - build-binaryen-linux
      - restore_cache:
          keys:
            - go-cache-v2-{{ checksum "go.mod" }}-{{ .Environment.CIRCLE_PREVIOUS_BUILD_NUM }}
            - go-cache-v2-{{ checksum "go.mod" }}
      - llvm-source-linux
      - run: go install -tags=llvm<<parameters.llvm>> .
      - restore_cache:
          keys:
            - wasi-libc-sysroot-systemclang-v3
      - run: make wasi-libc
      - save_cache:
          key: wasi-libc-sysroot-systemclang-v3
          paths:
            - lib/wasi-libc/sysroot
      - run: make gen-device -j4
      - run: make smoketest XTENSA=0
      - save_cache:
          key: go-cache-v2-{{ checksum "go.mod" }}-{{ .Environment.CIRCLE_BUILD_NUM }}
          paths:
            - ~/.cache/go-build
            - /go/pkg/mod
      - run: make fmt-check
  build-macos:
    steps:
      - checkout
      - submodules
      - run:
          name: "Install dependencies"
          command: |
            curl https://dl.google.com/go/go1.17.darwin-amd64.tar.gz -o go1.17.darwin-amd64.tar.gz
            sudo tar -C /usr/local -xzf go1.17.darwin-amd64.tar.gz
            ln -s /usr/local/go/bin/go /usr/local/bin/go
            HOMEBREW_NO_AUTO_UPDATE=1 brew install cmake ninja
      - install-xtensa-toolchain:
          variant: "macos"
      - restore_cache:
          keys:
            - go-cache-macos-v3-{{ checksum "go.mod" }}-{{ .Environment.CIRCLE_PREVIOUS_BUILD_NUM }}
            - go-cache-macos-v3-{{ checksum "go.mod" }}
      - restore_cache:
          keys:
            - llvm-source-12-macos-v1
      - run:
          name: "Fetch LLVM source"
          command: make llvm-source
      - save_cache:
          key: llvm-source-12-macos-v1
          paths:
            - llvm-project/clang/lib/Headers
            - llvm-project/clang/include
            - llvm-project/lld/include
            - llvm-project/llvm/include
      - restore_cache:
          keys:
            - llvm-build-12-macos-v1
      - run:
          name: "Build LLVM"
          command: |
            if [ ! -f llvm-build/lib/liblldELF.a ]
            then
              # fetch LLVM source (may only have headers right now)
              rm -rf llvm-project
              make llvm-source
              # build!
              make llvm-build
              find llvm-build -name CMakeFiles -prune -exec rm -r '{}' \;
            fi
      - save_cache:
          key: llvm-build-12-macos-v1
          paths:
            llvm-build
      - restore_cache:
          keys:
            - binaryen-macos-v1
      - run:
          name: "Build Binaryen"
          command: |
            if [ ! -f build/wasm-opt ]
            then
              make binaryen
            fi
      - save_cache:
          key: binaryen-macos-v1
          paths:
            - build/wasm-opt
      - restore_cache:
          keys:
            - wasi-libc-sysroot-macos-v4
      - run:
          name: "Build wasi-libc"
          command: make wasi-libc
      - save_cache:
          key: wasi-libc-sysroot-macos-v4
          paths:
            - lib/wasi-libc/sysroot
      - run:
          name: "Test TinyGo"
          command: make test GOTESTFLAGS="-v -short"
          no_output_timeout: 20m
      - run:
          name: "Build TinyGo release"
          command: |
            make release -j3
            cp -p build/release.tar.gz /tmp/tinygo.darwin-amd64.tar.gz
      - store_artifacts:
          path: /tmp/tinygo.darwin-amd64.tar.gz
      - run:
          name: "Extract release tarball"
          command: |
            mkdir -p ~/lib
            tar -C /usr/local/opt -xf /tmp/tinygo.darwin-amd64.tar.gz
            ln -s /usr/local/opt/tinygo/bin/tinygo /usr/local/bin/tinygo
            tinygo version
      - run: make tinygo-test
      - run: make smoketest AVR=0
      - save_cache:
          key: go-cache-macos-v3-{{ checksum "go.mod" }}-{{ .Environment.CIRCLE_BUILD_NUM }}
          paths:
            - ~/.cache/go-build
            - /go/pkg/mod

jobs:
  test-llvm11-go115:
    docker:
      - image: circleci/golang:1.15-buster
    steps:
      - test-linux:
          llvm: "11"
  test-llvm12-go116:
    docker:
      - image: circleci/golang:1.16-buster
    steps:
      - test-linux:
          llvm: "12"
  build-macos:
    macos:
      xcode: "11.1.0" # macOS 10.14
    steps:
      - build-macos



workflows:
  test-all:
    jobs:
      - test-llvm11-go115
      - test-llvm12-go116
      - build-macos