# Azure Pipelines CI build configuration
# Documentation at https://aka.ms/yaml

variables:
  VERILATOR_VERSION: 4.010
  VERILATOR_PATH: /opt/buildcache/verilator/$(VERILATOR_VERSION)
  TOOLCHAIN_PATH: /opt/buildcache/riscv
  # Release tag from https://github.com/lowRISC/lowrisc-toolchains/releases
  TOOLCHAIN_VERSION: 20191010-1
  # This controls where builds happen, and gets picked up by build_consts.sh.
  BUILD_ROOT: $(Build.ArtifactStagingDirectory)

trigger:
  tags:
    include:
    - "*"
  # Combine builds on master as long as another build is running
  batch: true
  branches:
    include:
    - master

jobs:
- job: lint
  displayName: Run code quality checks (lint)
  pool:
    vmImage: ubuntu-16.04
  steps:
  - bash: |
      sudo apt-get remove -y clang-6.0 libclang-common-6.0-dev libclang1-6.0 libllvm6.0
    displayName: Remove existing Clang installation
  - template: ci/install-package-dependencies.yml
  - bash: |
      python3 --version
      yapf --version
      isort --version
      clang-format -version
      echo "PATH=$PATH"
    displayName: Display tool versions
  - bash: |
      find util -iname '*.py' -print0 \
        | xargs -0 -n1 $PWD/util/lintpy.py -f
    # XXX: Python lint checks are disabled until Issue #313 is resolved
    condition: False
    displayName: Run Python lint
  - bash: |
      make -C hw regs && git diff --exit-code
      if [[ $? != 0 ]]; then
        echo -n "##vso[task.logissue type=error]"
        echo "Register headers not up-to-date. Regenerate them with 'make -C hw regs'."
        exit 1
      fi
    condition: always()
    displayName: Ensure all generated files are clean and up-to-date
  - bash: |
      util/build_docs.py
    condition: always()
    displayName: Render documentation
  - bash: |
      cd site/landing
      ../../build/docs-hugo/hugo
    condition: always()
    displayName: Render landing site
  - bash: |
      # XXX: As of today, task.logissue comments with 'sourcepath' set don't
      # get reported to GitHub Checks annotations. Upstream bug report:
      # https://developercommunity.visualstudio.com/content/problem/689794/pipelines-logging-command-logissue-does-not-report.html
      #echo "##vso[task.issue type=error;sourcepath=/azure-pipelines.yml;linenumber=45;columnnumber=1;code=100;]Found something that could be a problem."
      fork_origin="$(git merge-base --fork-point origin/master)"
      changed_files="$(git diff --name-only "$fork_origin" | grep -v /vendor/ | grep -E '\.(cpp|cc|c|h)$')"
      if [[ -z "$changed_files" ]]; then
        xargs git diff -U0 "$fork_origin" <<< "$changed_files" \
          | clang-format-diff -p1 \
          | tee clang-format-output
        if [[ -s clang-format-output ]]; then
          echo -n "##vso[task.logissue type=error]"
          echo "C/C++ lint failed. Use 'git clang-format' with appropriate options to reformat the changed code."
          exit 1
        fi
      fi
    # This check is not idempotent, but checks changes to a base branch.
    # Run it only on pull requests.
    condition: eq(variables['Build.Reason'], 'PullRequest')
    displayName: Use clang-format to check C/C++ coding style
  - bash: |
      fork_origin="$(git merge-base --fork-point origin/master)"
      changed_files="$(git diff --name-only "$fork_origin")"
      if [[ -z "$changed_files" ]]; then
        xargs util/fix_include_guard.py --dry-run <<< "$changed_files" | tee fix-include-guard-output
        if [[ -s fix-include-guard-output ]]; then
          echo -n "##vso[task.logissue type=error]"
          echo "Include guard check failed. Please run util/fix_include_guard.py on the above files."
          exit 1
        fi
      fi
    condition: eq(variables['Build.Reason'], 'PullRequest')
    displayName: Check formatting on header guards
  - bash: |
      commit_range="$(git merge-base --fork-point origin/master)..HEAD"
      # Notes:
      # * Merge commits are not checked. We always use rebases instead of
      #   merges to keep a linear history, which makes merge commits disappear
      #   ultimately, making them only a CI artifact which should not be
      #   checked.
      # * 'type=error' is used even for warnings. Only "errors" are shown in
      #   the GitHub checks API. However, warnings don't return a non-zero
      #   error code and don't fail the build step.
      util/lint_commits.py \
        --no-merges \
        --error-msg-prefix="##vso[task.logissue type=error]" \
        --warning-msg-prefix="##vso[task.logissue type=error]" \
        "$commit_range"
    # Only run on pull requests to check new commits only
    condition: eq(variables['Build.Reason'], 'PullRequest')
    displayName: Check commit metadata
  - bash: |
      only_doc_changes=0
      if [[ "$(Build.Reason)" = "PullRequest" ]]; then
        # Conservative way of checking for documentation-only changes.
        # Only relevant for pipelines triggered from pull requests
        echo "Checking for doc-only changes in this pull request"
        fork_origin="$(git merge-base --fork-point origin/master)"
        only_doc_changes="$(git diff --name-only "$fork_origin" | grep -v '\.md$' -q; echo $?)"
      fi
      echo "##vso[task.setvariable variable=onlyDocChanges;isOutput=true]${only_doc_changes}"
    displayName: Check if the commit only contains documentation changes
    name: DetermineBuildType

- job: sw_build
  displayName: Build Software
  dependsOn: lint
  condition: and(succeeded(), eq(dependencies.lint.outputs['DetermineBuildType.onlyDocChanges'], '0'))
  pool:
    vmImage: ubuntu-16.04
  steps:
  - template: ci/install-package-dependencies.yml
  - bash: |
      set -x
      sudo util/get-toolchain.py \
        --target-dir="${TOOLCHAIN_PATH}" \
        --release-version="${TOOLCHAIN_VERSION}" \
        --update
    displayName: Install toolchain
  - bash: |
      . util/build_consts.sh
      ./meson_init.sh -A
      ninja -C "$OBJ_DIR" all
    displayName: Build embedded targets
  - template: ci/upload-artifacts-template.yml
    parameters:
      artifact: sw_build

- job: top_earlgrey_verilator
  displayName: Build Verilator simulation of the Earl Grey toplevel design
  dependsOn: lint
  condition: and(succeeded(), eq(dependencies.lint.outputs['DetermineBuildType.onlyDocChanges'], '0'))
  pool: Default
  steps:
  - template: ci/install-package-dependencies.yml
  - bash: |
      set -e
      if [[ ! -d "$(VERILATOR_PATH)" ]]; then
        echo "Building verilator (no cached build found)"

        mkdir -p build/verilator
        cd build/verilator
        curl -Ls -o verilator.tgz \
          "https://www.veripool.org/ftp/verilator-$(VERILATOR_VERSION).tgz"
        tar -xf verilator.tgz

        cd "verilator-$(VERILATOR_VERSION)"
        ./configure --prefix="$(VERILATOR_PATH)"
        make -j$(nproc)
        mkdir -p "$VERILATOR_PATH"
        make install
      else
        echo "Re-using cached verilator build"
      fi
    displayName: Build and install Verilator
  - bash: |
      export PATH="$VERILATOR_PATH/bin:$PATH"
      python3 --version
      fusesoc --version
      verilator --version
    displayName: Display environment
  - bash: |
      . util/build_consts.sh
      mkdir -p "$OBJ_DIR/hw"
      mkdir -p "$BIN_DIR/hw/top_earlgrey"

      export PATH="$VERILATOR_PATH/bin:$PATH"
      fusesoc --cores-root=. \
        run --target=sim --setup --build \
        --build-root="$OBJ_DIR/hw" \
        lowrisc:systems:top_earlgrey_verilator

      cp "$OBJ_DIR/hw/sim-verilator/Vtop_earlgrey_verilator" \
        "$BIN_DIR/hw/top_earlgrey"
    displayName: Build simulation with Verilator
  - template: ci/upload-artifacts-template.yml
    parameters:
      artifact: top_earlgrey_verilator

- job: execute_verilated_tests
  displayName: Execute tests on the Verilated system
  pool:
    vmImage: ubuntu-16.04
  dependsOn:
    - top_earlgrey_verilator
    - sw_build
  steps:
  - template: ci/install-package-dependencies.yml
  - template: ci/download-artifacts-template.yml
  - bash: |
      . util/build_consts.sh
      export VERILATED_SYSTEM_PATH="$BIN_DIR/hw/top_earlgrey/Vtop_earlgrey_verilator"
      pytest --version
      ci/run_verilator_pytest.sh
    displayName: Execute tests

- job: riscv_compliance_tests
  displayName: Execute RISC-V compliance tests
  pool:
    vmImage: ubuntu-16.04
  dependsOn:
    - top_earlgrey_verilator
    - execute_verilated_tests
  # TODO: re-enable this CI step once RISC-V compliance correctly calls into
  # Meson. See #1181.
  condition: False
  steps:
  - template: ci/install-package-dependencies.yml
  - template: ci/download-artifacts-template.yml
  - bash: |
      . util/build_consts.sh
      export TARGET_SIM="$BIN_DIR/hw/top_earlgrey/Vtop_earlgrey_verilator"
      export RISCV_DEVICE=rv32imc
      export RISCV_TARGET=opentitan
      export OT_TARGET=verilator
      export OT_TOOLS="$TOOLCHAIN_PATH/bin"
      cd sw/vendor/riscv_compliance

      # Only running base interger variant for now, others will be added later.
      make RISCV_ISA=rv32i
    displayName: Execute tests

- job: top_earlgrey_nexysvideo
  displayName: Build NexysVideo variant of the Earl Grey toplevel design using Vivado
  dependsOn:
    - lint
    # The bootrom is built into the FPGA image at synthesis time.
    - sw_build
  condition: and(succeeded(), eq(dependencies.lint.outputs['DetermineBuildType.onlyDocChanges'], '0'))
  pool: Default
  timeoutInMinutes: 120 # 2 hours
  steps:
  - template: ci/install-package-dependencies.yml
  - template: ci/download-artifacts-template.yml
  - bash: |
      set -e
      . util/build_consts.sh
      mkdir -p "$OBJ_DIR/hw"
      mkdir -p "$BIN_DIR/hw/top_earlgrey"

      BOOTROM_VMEM="$BIN_DIR/sw/device/boot_rom/boot_rom_fpga_nexysvideo.vmem"
      test -f "$BOOTROM_VMEM"

      . /opt/xilinx/Vivado/2018.3/settings64.sh
      fusesoc --cores-root=. \
        run --target=synth --setup --build \
        --build-root="$OBJ_DIR/hw" \
        lowrisc:systems:top_earlgrey_nexysvideo \
        --ROM_INIT_FILE="$BOOTROM_VMEM"

      cp "$OBJ_DIR/hw/synth-vivado/lowrisc_systems_top_earlgrey_nexysvideo_0.1.bit" \
        "$BIN_DIR/hw/top_earlgrey"
    displayName: Build bitstream with Vivado
  - template: ci/upload-artifacts-template.yml
    parameters:
      artifact: top_earlgrey_nexysvideo

- job: deploy_release_artifacts
  displayName: Package and deploy release distribution
  pool:
    vmImage: ubuntu-16.04
  dependsOn:
    - lint
    - sw_build
    - top_earlgrey_verilator
    - top_earlgrey_nexysvideo
  condition: eq(dependencies.lint.outputs['DetermineBuildType.onlyDocChanges'], '0')
  steps:
  - template: ci/install-package-dependencies.yml
  - template: ci/download-artifacts-template.yml
  - bash: |
      . util/build_consts.sh

      util/make_distribution.sh

      tar --list -f $BIN_DIR/opentitan-*.tar.xz
      # Put the resulting tar file into a directory the |publish| step below can reference.
      mkdir "$BUILD_ROOT/dist-final"
      mv $BIN_DIR/opentitan-*.tar.xz "$BUILD_ROOT/dist-final"
    displayName: Create final dist directory out of partial ones
  - publish: $(Build.ArtifactStagingDirectory)/dist-final
    artifact: opentitan-dist
    displayName: Upload release artifacts as Azure artifact
  - task: GithubRelease@0
    displayName: Upload to GitHub releases (only tags)
    condition: and(succeeded(), startsWith(variables['Build.SourceBranch'], 'refs/tags/'))
    inputs:
      gitHubConnection: opentitan-release-upload
      repositoryName: lowrisc/opentitan
      addChangeLog: false
      assets: |
          $(Build.ArtifactStagingDirectory)/dist-final/*