Locally setup travis on docker. Taken from: https://github.com/travis-ci/travis-ci/issues/9709 Used for twentynineteen travis checks.

travis-local.txt

docker run --name travis-debug -dit travisci/ci-garnet:packer-1512502276-986baf0 /sbin/init
docker exec -it travis-debug bash -l
su - travis
rvm install 2.3.0
rvm use 2.3.0
cd builds
git clone --branch issue_9709_fix https://github.com/ekivolowitz/travis-build.git
cd travis-build
gem install travis
travis # to create ~/.travis
ln -s pwd ~/.travis/travis-build
bundle install
cd ..
rm -rf ~/.travis/travis-build && mv travis-build ~/.travis/
#Travis compile should now show up in the travis command list, but it's broken. 
git clone git@github.com:dingo-d/twentynineteen.git && cd twentynineteen && git checkout feature/add-wptrt-phpcs-check
# if you run travis compile here in your repo, you'll get an error about missing support libraries. Install them with the following. 
cd ~/.travis
git clone https://github.com/travis-ci/travis-support.git
git clone https://github.com/travis-ci/travis-rollout.git
git clone https://github.com/travis-ci/travis-github_apps.git
cd travis-github_apps && gem build travis-github_apps.gemspec && gem install travis-github_apps && cd ..
cd travis-rollout/ && gem build travis-rollout.gemspec && gem install travis-rollout && cd ..
cd travis-support/ && gem build travis-support.gemspec && gem install travis-support && cd ..
cd ~/builds/twentynineteen && travis compile > build.sh && chmod +x build.sh && ./build.sh

# In the last step don't run ./build.sh, but change the branch in the build.sh to feature branch, then save and then run the build.