C++ Library Template

A basic C++ library template utilizing CMake and Conan.

Features

• 🎣 Dependency management with Conan
• 🍭 Build configuration with CMake
• 🧩 Automatic publishing of artifacts to Artifactory with Github Actions
• 📑 Automatic publishing of Doxygen documentation with Github Actions
• 🚀 Preconfigured for Unit-Testing with Catch2

Installation

To use this library in you project, you can install it in the following ways:

Conan

# Add artifactory repository as remote:
conan remote add jothepro-conan-public https://jothepro.jfrog.io/artifactory/api/conan/conan-public
# Install  a release of `mylibrary`
conan install --remote jothepro-conan-public mylibrary/0.1.7@jothepro/stable

If you don't want to build & run tests when building from source, set the CONAN_RUN_TESTS variable:

install --remote jothepro-conan-public mylibrary/0.1.7@jothepro/stable -e CONAN_RUN_TESTS=0

Pre-Releases are available in the beta channel:

conan install --remote jothepro-conan-public mylibrary/0.1.8@jothepro/beta

Development

Build Requirements

• Conan >= 1.30
• CMake >= 3.15
• Doxygen 1.9.1 (optional)

Build

• Commandline:

  # Create build folder for out-of-source build
  mkdir build && cd build
  # Install Dependencies with Conan
  conan install ..
  # Configure, Build & Test
  conan build ..

• Clion: Install the Conan Plugin before configuring & building the project as usual.

Test

This template uses Catch2 for testing. The Unit-tests are defined in test.

• Commandline: To run just the unit-tests, you can run conan build .. --test.
• CLion: Execute the MyLibraryTest target

Documentation

This template uses Doxygen for documenation.

To generate the docs, run doxygen Doxyfile or execute the doxygen target defined in the CMakeLists.txt.

CI/CD

This template uses Github Actions for automating the release of a new library version.

• The workflow configureBuildTestCreateAndUpload.yaml configures, builds, tests the library automatically on each push. When a new release is created in Github, the resulting artifact is automatically uploaded to a public artifactory repository
• The workflow publish-pages.yaml automatically builds and publishes the documentation to Github Pages when a new release is created in Github.

Directory Structure

.
├── CMakeLists.txt (1)
├── Doxyfile (2)
├── LICENSE (3)
├── README.md (4)
├── conanfile.py (5)
├── docs (6)
│   ├── doxygen-awesome-css (7)
│   ├── doxygen-custom (8)
│   │   └── ...
│   ├── example-page.dox (9)
│   └── img (10)
│       └── ...
├── lib (11)
│   ├── CMakeLists.txt (12)
│   ├── src (13)
│   │   └── example.cpp (14)
│   └── include (15)
│       └── MyLibrary (16)
│           └── example.hpp (17)
├── test (18)
│   ├── CMakeLists.txt (19)
│   └── mylibrarytest.cpp (20)
└── test_package (21)
    ├── CMakeLists.txt (22)
    ├── conanfile.py (23)
    └── example.cpp (24)

1. Root CMakeLists.txt. Includes Library Sources (11) and unit tests (18).
2. Doxyfile for documentation generation. CMakeLists.txt (1) defines a target doxygen to build the documentation.
3. License file.
4. The Readme you currently read.
5. Conanfile. Used to install dependencies & publishing the package.
6. Documentation subdirectory. Generated docs will pe placed under docs/html.
7. Submodule containing the custom-css for doxygen.
8. Project-specific doxygen customizations.
9. Example documentation file. All .dox files in this dir will be automatically included in the documentation.
10. Images for documentation.
11. Library sources folder.
12. CMakeLists.txt for library.
13. Source files folder.
14. Private source file.
15. Public headers folder.
16. Library namespace.
17. Public header file example.
18. Unit tests folder.
19. CMakeLists.txt that defines unit tests.
20. Example unit test file.
21. Conan linking test directory.
22. CMakeLists.txt that defines an example project that links the library.
23. Conanfile that defines linking test.
24. Example sources that require the library to build & run successfully.

Credits

This template is inspired by these talks:

• C++Now 2017: Daniel Pfeifer “Effective CMake"

• CppCon 2018: Mateusz Pusz “Git, CMake, Conan - How to ship and reuse our C++ projects”