[Feature] Add LOCAL_CONFDIR option

CMakeLists.txt

@@ -83,6 +83,7 @@ ENDIF()
 
 # Now CMAKE_INSTALL_PREFIX is a base prefix for everything
 # CONFDIR - for configuration
+# LOCAL_CONFDIR - for local configuration
 # MANDIR - for manual pages
 # RUNDIR - for runtime files
 # DBDIR - for static files
@@ -93,6 +94,10 @@ IF(NOT CONFDIR)
 	SET(CONFDIR "${CMAKE_INSTALL_PREFIX}/etc/rspamd")
 ENDIF(NOT CONFDIR)
 
+IF(NOT LOCAL_CONFDIR)
+	SET(LOCAL_CONFDIR "${CONFDIR}")
+ENDIF(NOT LOCAL_CONFDIR)
+
 IF(NOT MANDIR)
 	SET(MANDIR "${CMAKE_INSTALL_PREFIX}/share/man")
 ENDIF(NOT MANDIR)

config.h.in

@@ -174,6 +174,7 @@
 #define uthash_free(ptr,sz) g_slice_free1(sz, ptr)
 
 #define RSPAMD_CONFDIR "${CONFDIR}"
+#define RSPAMD_LOCAL_CONFDIR "${LOCAL_CONFDIR}"
 #define RSPAMD_RUNDIR "${RUNDIR}"
 #define RSPAMD_LOGDIR "${LOGDIR}"
 #define RSPAMD_DBDIR "${DBDIR}"

src/libserver/cfg_utils.c

@@ -927,6 +927,7 @@ rspamd_include_map_handler (const guchar *data, gsize len,
 /*
  * Variables:
  * $CONFDIR - configuration directory
+ * $LOCAL_CONFDIR - local configuration directory
  * $RUNDIR - local states directory
  * $DBDIR - databases dir
  * $LOGDIR - logs dir
@@ -936,6 +937,7 @@ rspamd_include_map_handler (const guchar *data, gsize len,
  */
 
 #define RSPAMD_CONFDIR_MACRO "CONFDIR"
+#define RSPAMD_LOCAL_CONFDIR_MACRO "LOCAL_CONFDIR"
 #define RSPAMD_RUNDIR_MACRO "RUNDIR"
 #define RSPAMD_DBDIR_MACRO "DBDIR"
 #define RSPAMD_LOGDIR_MACRO "LOGDIR"
@@ -958,6 +960,9 @@ rspamd_ucl_add_conf_variables (struct ucl_parser *parser, GHashTable *vars)
 	ucl_parser_register_variable (parser,
 			RSPAMD_CONFDIR_MACRO,
 			RSPAMD_CONFDIR);
+	ucl_parser_register_variable (parser,
+			RSPAMD_LOCAL_CONFDIR_MACRO,
+			RSPAMD_LOCAL_CONFDIR);
 	ucl_parser_register_variable (parser, RSPAMD_RUNDIR_MACRO,
 			RSPAMD_RUNDIR);
 	ucl_parser_register_variable (parser,  RSPAMD_DBDIR_MACRO,