.travis.yml

# Enable sudo for use of apt.
sudo: required
# Set this to w/e the latest ubuntu release is.
dist: bionic
language: c++
compiler:
  - g++

# Install a more recent version of g++.
install: export CXX="g++-8"
addons:
  apt:
    sources:
    - ubuntu-toolchain-r-test
    packages:
    - g++-8

# Notification settings.
notifications:
 email:
  on_success: never
  on_failure: always

# Update the system.
before_install: 
  - sudo apt-get update -qq
  # - sudo apt-get install -y catch2 # Oh you wish... manually built from source further down..

## The CMake version preinstalled on Travis is very old. Use the official Linux binaries to build with a newer version
## (Modded version of https://riptutorial.com/cmake/example/4723/configure-travis-ci-with-newest-cmake)
# The install step will take care of deploying a newer cmake version
install:    
  # first we create a directory for the CMake binaries
  - DEPS_DIR="${TRAVIS_BUILD_DIR}/deps"
  - mkdir ${DEPS_DIR} && cd ${DEPS_DIR}
  # we use wget to fetch the cmake binaries
  - travis_retry wget --no-check-certificate https://github.com/Kitware/CMake/releases/download/v3.15.0/cmake-3.15.0-Linux-x86_64.tar.gz
  # this is optional, but useful:
  # do a quick md5 check to ensure that the archive we downloaded did not get compromised
  - echo "5a681e37b142006ab44aef9b976db610dc5d94124da41743ff53412f4b36a7fe *cmake-3.15.0-Linux-x86_64.tar.gz" > cmake_sha256.txt
  - sha256sum -c cmake_sha256.txt
  # extract the binaries; the output here is quite lengthy,
  # so we swallow it to not clutter up the travis console
  - tar -xvf cmake-3.15.0-Linux-x86_64.tar.gz > /dev/null
  - mv cmake-3.15.0-Linux-x86_64 cmake-install
  # add both the top-level directory and the bin directory from the archive
  # to the system PATH. By adding it to the front of the path we hide the
  # preinstalled CMake with our own.
  - PATH=${DEPS_DIR}/cmake-install:${DEPS_DIR}/cmake-install/bin:$PATH
  # don't forget to switch back to the main build directory once you are done
  - cd ${TRAVIS_BUILD_DIR}
  
  # Build Catch2 from source as it is absent from ubuntu repos =/
  - git clone https://github.com/catchorg/Catch2.git
  - cd Catch2
  - cmake -Bbuild -H. -DBUILD_TESTING=OFF
  # sudo uses root's PATH so we need to carry over ours.
  - sudo env PATH="$PATH" cmake --build build/ --target install
  # don't forget to switch back to the main build directory once you are done
  - cd ${TRAVIS_BUILD_DIR}

#  # Build a more recent SQLite3 that supports things like UPSERT.
#  - wget https://www.sqlite.org/2019/sqlite-autoconf-3290000.tar.gz
#  - tar -xf sqlite-autoconf-3290000.tar.gz
#  - cd sqlite-autoconf-3290000
#  - ./configure
#  - make
#  - sudo make install
#  # don't forget to switch back to the main build directory once you are done
#  - cd ${TRAVIS_BUILD_DIR}

before_script:
  # Check sqlite version
  - sqlite3 --version
  # Set an env var to signal cmake that this is a Travis CI env (required for Travis specific build).
  - export THIS_IS_TRAVIS="TRUE"
  # create a build folder for the out-of-source build
  - mkdir sane-test-build
  # switch to build directory
  - cd sane-test-build
  # run cmake; here we assume that the project's
  # top-level CMakeLists.txt is located at '..'
  - cmake ..

script:
  ## once CMake has done its job we just build using make as usual
  ## - make
  - cmake --build . --config Release
  # Execute unit tests
#  - ctest -C Release -V -j
  - ctest -C travis_test_all -VV --output-on-failure