This repository contains the source code for the KDevelop IDE. It also includes KDevelop Platform (kdevplatform) and most of the plugins.
Other KDevelop plugins can be found in KDevelop Group of KDE GitLab instance.
User documentation is available from: https://userbase.kde.org/KDevelop5/Manual
KDevelop is built the same way as most KDE projects, using CMake to set up a build directory and build options. For detailed instructions how to compile KDevelop, please refer to the Wiki: https://community.kde.org/KDevelop/HowToCompile_v5 .
Most of KDevelop's optional dependencies are opportunistic under the assumption that the build should always use all available functionality, as well as the most recent version. CMake has a lesser known feature to control which of such dependencies is used.
For instance, to skip building the Subversion plugin, use
-DCMAKE_DISABLE_FIND_PACKAGE_SubversionLibrary=ON.
If you want to contribute to KDevelop, please read through: https://www.kdevelop.org/contribute-kdevelop