Add installation and packaging targets

[zezl7]

Description

This PR enables the packaging and later installation of the CMake exercise with CPack.
To solely test the final version of the package, follow the instructions in the README.md.
To reproduce the entire workflow, follow the instructions in the Instructions section below.

Changes

Mandatory

1. Modified the CMakeLists.txt to have an install target.
2. Created cmake/CPackConfig.cmake and included it into the CMakeLists.txt.
3. Further modified the cmake/CPackConfig.cmake to generate debian packages.
4. Inspected the debian package using the linter.

Changes were done inside a Docker container.

Optional

1. Fixed several linter errors and warnings. This is the initial and final output.

• "extended-description-is-empty": set the CPACK_DEBIAN_PACKAGE_DESCRIPTION in the CPackConfig.cmake.
• "no-phrase": set the CPACK_DEBIAN_PACKAGE_MAINTAINER in the CPackConfig.cmake.
• "shared-library-lacks-version": added VERSION 0.1.0 and SOVERSION 1 to set_target_properties() in CMakeLists.txt.

Instructions

1. Build a docker image

docker build -t sse-cpack-image .

2. Create and run docker container in interactive mode and change into the desired directory

docker run --rm -it --mount type=bind,source="$(pwd)",target=/mnt/cpack-exercise sse-cpack-image
cd mnt/cpack-exercise

3. Create the CPackConfig.cmake

mkdir cmake && cd cmake
vim CPackConfig.cmake

4. After fully updating the CMakeLists.txt, build the code and create the package

mkdir build && cd build
cmake -DBUILD_SHARED_LIBS=ON -DCMAKE_BUILD_TYPE=Release ..
make -j && make install
cpack -G "TGZ;DEB"

5. Install the package, unpack it, and run the binary

apt install ./cpackexample_0.1.0_amd64.deb
dpkg-deb -R cpackexample_0.1.0_amd64.deb /mnt/cpack-exercise/build/cpackexample-debian
cd /cpackexample-debian/usr/bin && ./cpackexample

6. Run the linter

lintian ./cpackexample_0.1.0_amd64.deb

Hints

• GitLab username is @zlatanza.