.travis.yml

language: swift
osx_image: xcode10
env:
  global:
    - SDK=iphoneos
    - TARGET=armv7-apple-ios10
  matrix:
    - PLAYGROUND_DIR="creational/Singleton.playground"
    - PLAYGROUND_DIR="creational/Factory.playground"
    - PLAYGROUND_DIR="creational/AbstractFactory.playground"
script:
  xcrun swift --version &&
  cd "${PLAYGROUND_DIR}" &&
  xcrun -sdk "${SDK}"
    swiftc -target "${TARGET}"
           -emit-library -emit-module -module-name AuxiliarySources
           Sources/*.swift &&
  if ! xcrun swiftc -emit-imported-modules Contents.swift |
        grep -q "PlaygroundSupport";
  then
  
    cat <(echo "import AuxiliarySources") Contents.swift > main.swift &&
    xcrun -sdk "${SDK}"
      swiftc -target "${TARGET}"
        -I "." -L "." -lAuxiliarySources -module-link-name AuxiliarySources
        -o Playground main.swift;
  fi