.travis.yml

sudo: false
matrix:
  fast_finish: true
   # Note: Workaround travis-ci/travis-ci#4681
   # Exclude default job which lacks our included environment variables.
  exclude:
    - os: linux
    - env:
  include:
    - os: linux
      dist: xenial
      env: JOB=clang-format
      addons:
        apt:
          sources:
            - llvm-toolchain-xenial-8
          packages:
            - clang-format-8
      compiler: clang
      script: |
        if [ "$TRAVIS_PULL_REQUEST" != "false" ]; then
          BASE_COMMIT=$(git rev-parse $TRAVIS_BRANCH)
          echo "Running clang-format-8 against branch $TRAVIS_BRANCH, with hash $BASE_COMMIT"
          COMMIT_FILES=$(git diff --name-only $BASE_COMMIT | grep -ivE 'LinkDef|Utilities/PCG/')
          RESULT_OUTPUT="$(git-clang-format-8 --commit $BASE_COMMIT --diff --binary `which clang-format-8` $COMMIT_FILES)"

          for x in $COMMIT_FILES; do
            case $x in
              *.h|*.cxx)
                # We remove the header from the diff as it contains +++ then
                # we only select the added lines to check for the long ones.
                # We do not need to check for the lines which have been removed
                # and we do not want to check for the lines which were not changed
                # to avoid extra work.
                # 120 characters are allowed, meaning the error should start with 122,
                # to allow for the starting + at the end of the line.
                git diff $x | tail -n +5 | grep -e '^+' | grep '.\{122,\}' && { echo "Line longer than 120 chars in $x." && exit 1; } || true ;;
              *.hxx|*.cc|*.hpp) echo "$x uses non-allowed extension." && exit 1 ;;
              *) ;;
            esac
          done

          if [ "$RESULT_OUTPUT" == "no modified files to format" ] \
            || [ "$RESULT_OUTPUT" == "clang-format did not modify any files" ] ; then
            echo "clang-format passed."
            exit 0
          else
            echo "clang-format failed."
            echo "To reproduce it locally please run"
            echo -e "\tgit checkout $TRAVIS_BRANCH"
            echo -e "\tgit-clang-format --commit $BASE_COMMIT --diff --binary $(which clang-format)"
            echo "$RESULT_OUTPUT"
            exit 1
          fi
        fi
    - os: linux
      dist: bionic
      env: JOB=doxygen
      addons:
        apt:
          packages:
            - doxygen
            - doxygen-doc
            - doxygen-latex
            - doxygen-gui
            - graphviz
            - cmake
      script: |
        cat > CMakeLists.txt <<\EOF
        add_subdirectory(doc)
        EOF
        cmake .
        make doc
      deploy:
        provider: pages
        skip_cleanup: true
        github_token: $GITHUB_API_TOKEN # Set in travis-ci.org dashboard
        local_dir: doc/html
        on:
          branch: dev