.github/workflows/lint.yml

# Copyright 2019 The IREE Authors
#
# Licensed under the Apache License v2.0 with LLVM Exceptions.
# See https://llvm.org/LICENSE.txt for license information.
# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception

# Keep this in sync with build_tools/scripts/lint.sh

name: Lint

on: [pull_request]

permissions:
  contents: read

jobs:
  pre-commit:
    runs-on: ubuntu-20.04
    steps:
      - name: Checking out repository
        uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # v3.5.0
      - name: Setting up python
        uses: actions/setup-python@d27e3f3d7c64b4bbf8e4abfb9b63b83e846e0435 # v4.5.0
      - name: Running pre-commit
        uses: pre-commit/action@2c7b3805fd2a0fd8c1884dcaebf91fc102a13ecd # v3.0.1

  buildifier:
    runs-on: ubuntu-20.04
    steps:
      - name: Checking out repository
        uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # v3.5.0
      - name: Fetching Base Branch
        # We have to explicitly fetch the base branch as well
        run: git fetch --no-tags --prune --depth=1 origin "${GITHUB_BASE_REF?}:${GITHUB_BASE_REF?}"
      - name: Downloading Buildifier
        run: |
          mkdir -p "${HOME?}/bin"
          wget https://github.com/bazelbuild/buildtools/releases/download/4.0.1/buildifier -O "${HOME?}/bin/buildifier"
          chmod +x "${HOME?}/bin/buildifier"
          echo "${HOME?}/bin" >> $GITHUB_PATH
      - name: Running buildifier on changed files
        run: |
          # Fail if the script fails (unfixable lint warnings) or it creates a
          # diff (fixable lint warnings or formatting).
          EXIT_CODE=0
          ./build_tools/scripts/run_buildifier.sh "${GITHUB_BASE_REF?}" || EXIT_CODE=1
          git diff --exit-code
          exit "${EXIT_CODE?}"

  pytype:
    runs-on: ubuntu-20.04
    steps:
      - name: Checking out repository
        uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # v3.5.0
      - name: Setting up python
        uses: actions/setup-python@d27e3f3d7c64b4bbf8e4abfb9b63b83e846e0435 # v4.5.0
      - name: Fetching Base Branch
        # We have to explicitly fetch the base branch as well
        run: git fetch --no-tags --prune --depth=1 origin "${GITHUB_BASE_REF?}:${GITHUB_BASE_REF?}"
      - name: Install pytype
        run: python3 -m pip install pytype
      - name: Run pytype on changed files
        run: ./build_tools/pytype/check_diff.sh "${GITHUB_BASE_REF?}"

  generated_cmake_files:
    runs-on: ubuntu-20.04
    steps:
      - name: Checking out repository
        uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # v3.5.0
      - name: Generating CMake files
        run: |
          ./build_tools/scripts/generate_cmake_files.sh
      - name: Checking Diff
        run: |
          # Make sure to run build_tools/scripts/generate_cmake_files.sh and
          # pick up new files that have been added.
          git add -A
          git diff HEAD --exit-code