name: Continuous Integration

on:
  pull_request:
  push:
    branches:
      - master
      - 1.4.x
      - 1.3.x
      - 1.2.x

jobs:
  test:
    name: sbt test
    runs-on: ubuntu-latest
    strategy:
      matrix:
        scala: [2.13.4, 2.12.13]
    container:
      image: ucbbar/chisel3-tools
      options: --user github --entrypoint /bin/bash
    env:
      CONTAINER_HOME: /home/github

    steps:
      - name: Checkout
        uses: actions/checkout@v2
      - name: Setup Scala
        uses: olafurpg/setup-scala@v10
        with:
          java-version: adopt@1.8
      - name: Cache Scala
        uses: coursier/cache-action@v6
      - name: Check Formatting (Scala 2.12 only)
        if: startsWith(matrix.scala, '2.12')
        run: sbt ++${{ matrix.scala }} scalafmtCheckAll
      - name: Unidoc
        run: sbt ++${{ matrix.scala }} unidoc
      - name: Sanity check benchmarking scripts (Scala 2.13 only)
        if: startsWith(matrix.scala, '2.13')
        run: |
          benchmark/scripts/benchmark_cold_compile.py -N 2 --designs regress/ICache.fir --versions HEAD
          benchmark/scripts/find_heap_bound.py -- -cp firrtl*jar firrtl.stage.FirrtlMain -i regress/ICache.fir -o out -X verilog
      - name: Test
        run: sbt ++${{ matrix.scala }} test
      - name: Binary compatibility
        run: sbt ++${{ matrix.scala }} mimaReportBinaryIssues

  mill:
    name: Mill Sanity Check
    runs-on: ubuntu-latest
    strategy:
      matrix:
        scala: [2.13.4, 2.12.13]
    steps:
      - name: Checkout
        uses: actions/checkout@v2
      - name: Setup Scala
        uses: olafurpg/setup-scala@v10
      - name: Cache
        uses: coursier/cache-action@v5
      - name: Setup Mill
        uses: jodersky/setup-mill@v0.2.3
      - name: Mill sanity check
        run: mill _[${{ matrix.scala }}].compile

  # TODO find better way to express Ops and AddNot as single test
  equiv:
    name: formal equivalence
    runs-on: ubuntu-latest
    strategy:
      matrix:
        design: [RocketCore, FPU, ICache, Ops, AddNot]
    container:
      image: ucbbar/chisel3-tools
      options: --user github --entrypoint /bin/bash
    env:
      CONTAINER_HOME: /home/github

    steps:
      - name: Checkout
        uses: actions/checkout@v2
      - name: Setup Scala
        uses: olafurpg/setup-scala@v10
        with:
          java-version: adopt@1.8
      - name: Cache Scala
        uses: coursier/cache-action@v5
      - name: Run Formal Equivalence
        # This is here instead of on the whole job because if a job is skipped, so are dependent jobs
        # If this job were skipped, all_tests_passed would be skipped to
        # By having this "if" here, this job returns success so that all_tests_passed will succeed too
        if: github.event_name == 'pull_request' &&
            ! contains(github.event.pull_request.labels.*.name, 'Skip Formal CI')
        run: ./.run_formal_checks.sh ${{ matrix.design }}

  # Sentinel job to simplify how we specify which checks need to pass in branch
  # protection and in Mergify
  #
  # When adding new jobs, please add them to `needs` below
  all_tests_passed:
    name: "all tests passed"
    needs: [test, mill, equiv]
    runs-on: ubuntu-latest
    steps:
      - run: echo Success!

  # sbt ci-release publishes all cross versions so this job needs to be
  # separate from a Scala versions build matrix to avoid duplicate publishing
  publish:
    needs: [all_tests_passed]
    runs-on: ubuntu-latest
    if: github.event_name == 'push'

    steps:
      - name: Checkout
        uses: actions/checkout@v2
      - name: Setup Scala
        uses: olafurpg/setup-scala@v10
        with:
          java-version: adopt@1.8
      - name: Cache Scala
        uses: coursier/cache-action@v5
      - name: Setup GPG (for Publish)
        uses: olafurpg/setup-gpg@v3
      - name: Publish
        run: sbt ci-release
        env:
          PGP_PASSPHRASE: ${{ secrets.PGP_PASSPHRASE }}
          PGP_SECRET: ${{ secrets.PGP_SECRET }}
          SONATYPE_PASSWORD: ${{ secrets.SONATYPE_PASSWORD }}
          SONATYPE_USERNAME: ${{ secrets.SONATYPE_USERNAME }}

