Travis CI configuration file to install OpenCV v3.0.0 (beta) for use with C++ projects. Modified for v3.0.0 from original scripts available at: https://github.com/jayrambhia/Install-OpenCV.

opencv_v3.0.0_install_c++_project_.travis.yml

language:
  - cpp

compiler:
  - gcc
  
before_install:
  - sudo apt-get update

install:

# OpenCV v3.0.0 (beta) install code (modified from orignal source: https://github.com/jayrambhia/Install-OpenCV)

  # OpenCV dependencies - Details available at: http://docs.opencv.org/trunk/doc/tutorials/introduction/linux_install/linux_install.html
  - sudo apt-get install -y build-essential
  - sudo apt-get install -y cmake git libgtk2.0-dev pkg-config libavcodec-dev libavformat-dev libswscale-dev
  - sudo apt-get install -y python-dev python-numpy libtbb2 libtbb-dev libjpeg-dev libpng-dev libtiff-dev libjasper-dev libdc1394-22-dev

  # Download v3.0.0 .zip file and extract.
  - curl -sL https://github.com/Itseez/opencv/archive/3.0.0-beta.zip > opencv.zip
  - unzip opencv.zip
  - cd opencv-3.0.0-beta
  
  # Create a new 'build' folder.
  - mkdir build
  - cd build
  
  # Set build instructions for Ubuntu distro.
  - cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D WITH_TBB=ON -D BUILD_NEW_PYTHON_SUPPORT=ON -D WITH_V4L=ON -D INSTALL_C_EXAMPLES=ON -D INSTALL_PYTHON_EXAMPLES=ON -D BUILD_EXAMPLES=ON -D WITH_QT=ON -D WITH_OPENGL=ON ..
  
  # Run 'make' with four threads.
  - make -j4
  
  # Install to OS.
  - sudo make install
  
  # Add configuration to OpenCV to tell it where the library files are located on the file system (/usr/local/lib)
  - sudo sh -c 'echo "/usr/local/lib" > /etc/ld.so.conf.d/opencv.conf'
  
  - sudo ldconfig
  - echo "OpenCV installed."
  
  # We need to return to the repo "root" folder, so we can then 'cd' into the C++ project folder.
  - cd ../../

script:
  - cd [project_dir]
  - cmake .
  - make
  - ./[application_name] [params]