build: package with CPack

Such packages can be used by downstream projects in our CI. We directly create a new CI
job for that. It creates a Debian package and a simple tar archive.

CMakeLists.txt

@@ -7,7 +7,7 @@ set(KF6_MIN_VERSION "5.240.0")
 set(KDE_COMPILERSETTINGS_LEVEL "5.84")
 
 find_package(ECM ${KF6_MIN_VERSION} REQUIRED NO_MODULE)
-set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${ECM_MODULE_PATH} ${ECM_KDE_MODULE_DIR})
+set(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules ${ECM_MODULE_PATH})
 
 include(KDEInstallDirs)
 include(KDECMakeSettings)
@@ -80,3 +80,5 @@ add_custom_target(disman DEPENDS
 install(FILES disman.categories DESTINATION ${KDE_INSTALL_LOGGINGCATEGORIESDIR})
 
 feature_summary(WHAT ALL FATAL_ON_MISSING_REQUIRED_PACKAGES)
+
+include(Packing)

cmake/modules/Packing.cmake

@@ -0,0 +1,21 @@
+# SPDX-FileCopyrightText: 2024 Roman Gilg <[email protected]>
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+set(CPACK_PACKAGE_NAME disman CACHE STRING "Deb package name")
+set(CPACK_PACKAGE_VENDOR "WinFT")
+
+set(CPACK_PACKAGE_CONTACT "[email protected]")
+set(CPACK_DEBIAN_PACKAGE_MAINTAINER "Roman Gilg")
+
+set(CPACK_PACKAGE_VERSION_MAJOR ${PROJECT_VERSION_MAJOR})
+set(CPACK_PACKAGE_VERSION_MINOR ${PROJECT_VERSION_MINOR})
+set(CPACK_PACKAGE_VERSION_PATCH ${PROJECT_VERSION_PATCH})
+
+set(CPACK_RESOURCE_FILE_LICENSE "${CMAKE_CURRENT_SOURCE_DIR}/COPYING.LIB")
+set(CPACK_RESOURCE_FILE_README "${CMAKE_CURRENT_SOURCE_DIR}/README.md")
+
+set(CPACK_VERBATIM_VARIABLES YES)
+set(CPACK_PACKAGE_INSTALL_DIRECTORY ${CPACK_PACKAGE_NAME})
+set(CPACK_DEBIAN_FILE_NAME DEB-DEFAULT)
+
+include(CPack)