.travis.yml

# use Java and non-root
dist: trusty
sudo: false
language: Java
jdk: oraclejdk8

# ignore the virtualenv that Travis creates
env:
  global:
    - PIPENV_VENV_IN_PROJECT=1
    - PIPENV_IGNORE_VIRTUALENVS=1

# install the Markdown linting program called mdl
before_install:
  # download the markdown linting tool, mdl, as a Ruby gem
  - gem install mdl
  # download gradle as a zip file
  - wget https://services.gradle.org/distributions/gradle-4.6-bin.zip
  - unzip -d $HOME gradle-4.6-bin.zip
  # delete the downloaded file
  - rm -rf gradle-4.6-bin.zip
  # add gradle bin to path at the beginning to ensure it overwrites old gradle
  - export PATH="$HOME/gradle-4.6/bin:$PATH"
  # switch to Python 3.6.3 globally, install python dependencies
  - pyenv global 3.6.3
  - pip install --upgrade pip
  - pip install pipenv
  # do not allow Travis to use standard error for debugging purposes
  - unset _JAVA_OPTIONS

# cache to improve build speed
before_cache:
  - rm -f  $HOME/.gradle/caches/modules-2/modules-2.lock
  - rm -fr $HOME/.gradle/caches/*/plugin-resolution/
cache:
  directories:
    - $HOME/.pip-cache/
    - $HOME/.gradle/caches/
    - $HOME/.gradle/wrapper/

# delete any cached version of GatorGrader and require a fresh installation
before_script:
  - rm -rf $HOME/.local/share/gatorgrader

# run checks on the README file with mdl
# run checks on a student's Java code through gradle and GatorGrader
# run checks on a student's Markdown writing through GatorGrader
# Note: "gradle grade" automatically installs GatorGrader and runs all the checks
# Note: Although "gradle grade" runs in a Docker container,
# this is not done in CI because Travis CI does not currently support MacOS,
# which would limit the ability to do cross-platform runs of these checks.
script:
  # lint the assignment's documentation: see .mdlrc for modifications
  - mdl README.md
  # Java: see build.gradle for details about the build configuration
  - gradle --version
  - gradle clean
  - gradle check
  - gradle build
  - gradle run
  # GatorGrader: see config/gatorgrader.yml for details about all checks;
  # not that grading skips the build task since submitted code may not build
  - gradle grade -x build