lint.yml

name: lint

on:
  pull_request:
    branches:
      - '*'
  push:
    branches:
      - 'main'
    paths:
      - '**Dockerfile'
      - '**.sh'
      - '**.py'
  workflow_dispatch:

env:
  SHELLCHECK_URL: https://github.com/koalaman/shellcheck/releases/download/v0.9.0/shellcheck-v0.9.0.linux.x86_64.tar.xz

jobs:
  hadolint:
    name: 'hadolint (fail on error)'
    runs-on: ubuntu-20.04
    steps:
      - name: Checkout
        uses: actions/checkout@v3
      - name: Lint data_augmentation Dockerfile
        uses: hadolint/hadolint-action@v3.1.0
        with:
          dockerfile: data_augmentation/Dockerfile
          verbose: true
          failure-threshold: error
      - name: Lint feature_extraction Dockerfile
        uses: hadolint/hadolint-action@v3.1.0
        with:
          dockerfile: feature_extraction/Dockerfile
          verbose: true
          failure-threshold: error
  shellcheck:
    name: 'ShellCheck (fail on error)'
    runs-on: ubuntu-20.04
    steps:
      - name: Checkout
        uses: actions/checkout@v3
      - name: Install shellcheck
        run: wget -O- -q $SHELLCHECK_URL | sudo tar -xJ -C /usr/local/bin --strip-components=1 --wildcards --no-same-owner --no-same-permissions '*/shellcheck'
      - uses: liskin/gh-problem-matcher-wrap@v2
        with:
          action: add
          linters: gcc
      - name: Run shellcheck
        run: |
          run_shellcheck() {
            args=("$0" "$@")
            for arg in "${args[@]}"; do
              SHELLCHECK_OUT=$(/usr/local/bin/shellcheck --format=gcc "$arg") && :;
              if [ -n "$SHELLCHECK_OUT" ];then
                echo "$SHELLCHECK_OUT"
              fi
              # fail on error
              if (echo "$SHELLCHECK_OUT" | grep -q -P '^(.*):(\d+):(\d+):\s+(?:fatal\s+)?(error):\s+(.*)$' && :)
              then
                exit 1
              fi
            done
          }
          export -f run_shellcheck
          find . -name '*.sh' -exec bash -c 'set -e; run_shellcheck "$@"' {} +
      - uses: liskin/gh-problem-matcher-wrap@v2
        with:
          action: remove
          linters: gcc
  flake8:
    name: 'Flake8 (annotations only)'
    runs-on: ubuntu-20.04
    steps:
      - name: Checkout
        uses: actions/checkout@v3
      - name: Set up Python
        uses: actions/setup-python@v4
        with:
          python-version: 3.8
      - name: Install flake8
        run: pip install flake8~=6.0.0
      - name: Run flake8
        uses: liskin/gh-problem-matcher-wrap@v2
        with:
          linters: flake8
          run: flake8 --exit-zero .