[dnf5 plugin] config-manager

Manage libdnf5 configuration.

Subcommands:
addrepo       Add a repository from the specified configuration file
              or create a new repository
setopts       Set configuration and repositories options
unsetopts     Uset/remove configuration and repositories options
setvars       Set variables
unsetvars     Unset/remove variables

Note:
Main configuration:
libdnf5 reads the distribution configuration from the drop-in directory
("/usr/share/dnf5/libdnf.conf.d") and system configuration from drop-in
directory ("/etc/dnf/libdnf5.conf.d"). Last, it loads the system
configuration file (by default "/etc/dnf/dnf.conf"). The latter has
the highest priority and is modified by config-manager.

Repository configuration:
Libdnf5 loads the repositories configuration and then loads the configuration
overrides. Configuration overrides are stored in files in
the "/usr/share/dnf5/repos.override.d" and "/etc/dnf/repos.override.d"
directories. The files are sorted alphabetically. The override from the next
file overrides the previous one - the last override value wins.
The config-manager writes the repositories configuration changes to the file
"/etc/dnf/repos.override.d/99-config-manager.repo".

dnf5-plugins/CMakeLists.txt

@@ -6,5 +6,6 @@ include_directories("${PROJECT_SOURCE_DIR}/dnf5/include/")
 
 add_subdirectory("builddep_plugin")
 add_subdirectory("changelog_plugin")
+add_subdirectory("config-manager_plugin")
 add_subdirectory("copr_plugin")
 add_subdirectory("repoclosure_plugin")

dnf5-plugins/config-manager_plugin/CMakeLists.txt

@@ -0,0 +1,18 @@
+# set gettext domain for translations
+add_definitions(-DGETTEXT_DOMAIN=\"dnf5_cmd_config-manager\")
+
+add_library(config-manager_cmd_plugin MODULE config-manager.cpp addrepo.cpp setopts.cpp unsetopts.cpp setvars.cpp unsetvars.cpp config-manager_cmd_plugin.cpp)
+
+# disable the 'lib' prefix in order to create changelog_cmd_plugin.so
+set_target_properties(config-manager_cmd_plugin PROPERTIES PREFIX "")
+
+pkg_check_modules(LIBFMT REQUIRED fmt)
+target_link_libraries(libdnf5-cli PUBLIC ${LIBFMT_LIBRARIES})
+
+find_package(CURL 7.62.0 REQUIRED)
+include_directories(${CURL_INCLUDE_DIR})
+
+target_link_libraries(config-manager_cmd_plugin PRIVATE libdnf5 libdnf5-cli)
+target_link_libraries(config-manager_cmd_plugin PRIVATE dnf5)
+
+install(TARGETS config-manager_cmd_plugin LIBRARY DESTINATION ${CMAKE_INSTALL_FULL_LIBDIR}/dnf5/plugins/)