.travis.yml

language: python
python:
    - 3.6
notifications:
    email: false

before_install:
    - sudo apt-get update
    - sudo apt-get -y install python-pip
    - sudo pip install --upgrade pip
    - pip install --upgrade pip
    - pip install pycodestyle
    - pip install autopep8

script:
    # Run pep8 on all .py files in all subfolders
    # We must ignore E402 module level import not at top of file
    # because of use case sys.path.append('..'); import <module>
    - num_errors_before=`find . -name \*.py -exec pycodestyle {} + | wc -l`
    - echo $num_errors_before

    - cd "$TRAVIS_BUILD_DIR"
    - git config --global user.email "schylarutley@hotmail.com"
    # From https://help.github.com/articles/setting-your-username-in-git/:
    # "Tip: You don't have to use your real name--any name works. Git 
    # actually associates commits by email address; the username is only 
    # used for identification. If you use your email address associated 
    # with a GitHub account, we'll use your GitHub username, instead of 
    # this name.
    - git config --global user.name "Schylar"
    - git checkout $TRAVIS_BRANCH

    - find . -name \*.py -exec autopep8 --recursive --aggressive --aggressive --in-place {} +
    - num_errors_after=`find . -name \*.py -exec pycodestyle --ignore=E402 {} + | wc -l`
    - echo $num_errors_after

    - |
        if (( $num_errors_after < $num_errors_before )); then
            git commit -a -m "PEP-8 Fix"
            git config --global push.default simple # Push only to the current branch.  
            # Make sure to make the output quiet, or else the API token will 
            # leak!  This works because the API key can replace your password.
            git push --quiet
        fi
    - cd "$TRAVIS_BUILD_DIR"

    # List the remaining errors - these will have to be fixed manually
    - find . -name \*.py -exec pycodestyle {} +