Load D-Bus interface XML data during runtime

We already install the XML data anyway, so there is no reason to ship it
twice (once in the binary and once as a file).
Signed-off-by: Sebastian Ramacher <sebastian+dev@ramacher.at>

Makefile

@@ -6,8 +6,7 @@ include common.mk
 
 # source files
 OSOURCE    = $(sort $(wildcard ${PROJECT}/*.c) \
-						 ${PROJECT}/css-definitions.c \
-						 ${PROJECT}/dbus-interface-definitions.c)
+						 ${PROJECT}/css-definitions.c)
 
 ifneq (${WITH_SQLITE},0)
 INCS     += $(SQLITE_INC)
@@ -43,6 +42,13 @@ endif
 ifeq (,$(findstring -DLOCALEDIR,${CPPFLAGS}))
 CPPFLAGS += -DLOCALEDIR=\"${LOCALEDIR}\"
 endif
+ifeq (,$(findstring -DDBUSINTERFACEDIR,${CPPFLAGS}))
+ifneq ($(WITH_LOCAL_DBUS_XML),0)
+CPPFLAGS += -DDBUSINTERFACEDIR=\"${PWD}/data\"
+else
+CPPFLAGS += -DDBUSINTERFACEDIR=\"${DBUSINTERFACEDIR}\"
+endif
+endif
 
 OBJECTS       = $(addprefix ${BUILDDIR_RELEASE}/,${SOURCE:.c=.o})
 OBJECTS_DEBUG = $(addprefix ${BUILDDIR_DEBUG}/,${SOURCE:.c=.o})
@@ -78,13 +84,6 @@ ${PROJECT}/version.h: ${PROJECT}/version.h.in config.mk
 		-e 's/ZVABI/${ZATHURA_ABI_VERSION}/' ${PROJECT}/version.h.in > ${PROJECT}/version.h.tmp
 	$(QUIET)mv ${PROJECT}/version.h.tmp ${PROJECT}/version.h
 
-${PROJECT}/dbus-interface-definitions.c: data/org.pwmt.zathura.xml
-	$(QUIET)echo '#include "dbus-interface-definitions.h"' > $@.tmp
-	$(QUIET)echo 'const char* DBUS_INTERFACE_XML =' >> $@.tmp
-	$(QUIET)sed 's/^\(.*\)$$/"\1\\n"/' data/org.pwmt.zathura.xml >> $@.tmp
-	$(QUIET)echo ';' >> $@.tmp
-	$(QUIET)mv $@.tmp $@
-
 ${PROJECT}/css-definitions.c: data/zathura.css_t
 	$(QUIET)echo '#include "css-definitions.h"' > $@.tmp
 	$(QUIET)echo 'const char* CSS_TEMPLATE_INDEX =' >> $@.tmp
@@ -174,8 +173,6 @@ clean:
 		${PROJECT}.pc \
 		${PROJECT}/version.h \
 		${PROJECT}/version.h.tmp \
-		${PROJECT}/dbus-interface-definitions.c \
-		${PROJECT}/dbus-interface-definitions.c.tmp \
 		${PROJECT}/css-definitions.c \
 		${PROJECT}/css-definitions.c.tmp \
 		$(PROJECT).info \

config.mk

@@ -44,6 +44,11 @@ WITH_SYNCTEX ?= $(shell (${PKG_CONFIG} synctex && echo 1) || echo 0)
 # To disable support for mimetype detction with libmagic set WITH_MAGIC to 0.
 WITH_MAGIC ?= 1
 
+# use local D-Bus interface
+# Enable this if the D-Bus interface XML from data should be used (useful for
+# development).
+WITH_LOCAL_DBUS_XML ?= 0
+
 # paths
 PREFIX ?= /usr
 MANPREFIX ?= ${PREFIX}/share/man

zathura/dbus-interface-definitions.h

-/* See LICENSE file for license and copyright information */
-
-#ifndef ZATHURA_DBUS_INTERFACE_DEFINITIONS
-#define ZATHURA_DBUS_INTERFACE_DEFINITIONS
-
-const char* DBUS_INTERFACE_XML;
-
-#endif

zathura/dbus-interface.c

 /* See LICENSE file for license and copyright information */
 
 #include "dbus-interface.h"
-#include "dbus-interface-definitions.h"
 #include "synctex.h"
 #include "macros.h"
 #include "zathura.h"
@@ -17,6 +16,26 @@
 #include <string.h>
 #include <unistd.h>
 
+static const char DBUS_XML_FILENAME[] = "org.pwmt.zathura.xml";
+
+static char* load_xml_data(void)
+{
+#ifdef DBUSINTERFACEDIR
+  char* file_path = g_build_filename(DBUSINTERFACEDIR, DBUS_XML_FILENAME, NULL);
+  if (file_path == NULL) {
+    return NULL;
+  }
+
+  girara_debug("Loading D-Bus interface data from %s.", file_path);
+  char* content = girara_file_read(file_path);
+  g_free(file_path);
+  return content;
+#else
+  girara_error("DBUSINTERFACEDIR is not defined. D-Bus interface will not be available.");
+  return NULL;
+#endif
+}
+
 G_DEFINE_TYPE(ZathuraDbus, zathura_dbus, G_TYPE_OBJECT)
 
 /* template for bus name */
@@ -144,9 +163,18 @@ zathura_dbus_new(zathura_t* zathura)
   private_t* priv   = GET_PRIVATE(dbus);
   priv->zathura     = zathura;
 
+  char* xml_data = load_xml_data();
+  if (xml_data == NULL)
+  {
+    girara_warning("Failed to load introspection data.");
+    g_object_unref(obj);
+    return NULL;
+  }
+
   GError* error = NULL;
-  priv->introspection_data = g_dbus_node_info_new_for_xml(DBUS_INTERFACE_XML,
-                                                          &error);
+  priv->introspection_data = g_dbus_node_info_new_for_xml(xml_data, &error);
+  g_free(xml_data);
+
   if (priv->introspection_data == NULL) {
     girara_warning("Failed to parse introspection data: %s", error->message);
     g_error_free(error);