Retrieve config files for bundle in MacOS X

Author: BatchDrake

CMakeLists.txt

@@ -208,6 +208,11 @@ set_target_properties(suscan PROPERTIES COMPILE_FLAGS "${SIGUTILS_SPC_CFLAGS}")
 set_target_properties(suscan PROPERTIES LINK_FLAGS "${SIGUTILS_SPC_LDFLAGS}")
 
 # Required dependencies
+if(APPLE)
+  # Required to retrieve bundle path
+  target_link_libraries(suscan "-framework CoreFoundation")
+endif()
+
 target_link_libraries(suscan m ${SIGUTILS_LIBRARIES})
 
 target_include_directories(suscan SYSTEM PUBLIC ${SNDFILE_INCLUDE_DIRS})

util/confdb.c

@@ -26,23 +26,71 @@
 #include <sys/stat.h>
 #include <fcntl.h>
 
+#ifdef __APPLE__
+#  include <CoreFoundation/CoreFoundation.h>
+#endif /* __APPLE__ */
+
 #define SU_LOG_DOMAIN "confdb"
 
 #include <sigutils/log.h>
 #include "confdb.h"
 
 PTR_LIST(SUPRIVATE suscan_config_context_t, context);
 
-SUPRIVATE const char *confdb_system_path = PKGDATADIR "/config";
+SUPRIVATE const char *confdb_system_path;
 SUPRIVATE const char *confdb_user_path;
 
+#ifdef __APPLE__
 const char *
-suscan_confdb_get_system_path(void)
+suscan_confdb_get_bundle_path(void)
 {
+  CFBundleRef main_bundle = NULL;
+  CFURLRef dir_url = NULL;
+  CFStringRef dir_path = NULL;
+  CFStringEncoding encmethod;
   const char *path = NULL;
+  
+  if ((main_bundle = CFBundleGetMainBundle()) != NULL) {
+    SU_TRYCATCH(
+        dir_url = CFBundleCopyResourceURL(
+                  main_bundle,
+                  CFSTR("suscan/config"),
+                  NULL, /* resourceType */
+                  NULL /* dirName */),
+        goto done);
+    
+    SU_TRYCATCH(
+        dir_path = CFURLCopyFileSystemPath(dir_url, kCFURLPOSIXPathStyle),
+        goto done);
+    
+    encmethod = CFStringGetSystemEncoding();
+    path = CFStringGetCStringPtr(dir_path, encmethod);
+  }
+  
+done:
+  return path;
+}
+#endif /* __APPLE__ */
 
-  if ((path = getenv("SUSCAN_CONFIG_PATH")) != NULL)
-    confdb_system_path = path;
+const char *
+suscan_confdb_get_system_path(void)
+{
+  const char *path = NULL;
+  
+  if (confdb_system_path == NULL) {
+    if ((path = getenv("SUSCAN_CONFIG_PATH")) != NULL) {
+      confdb_system_path = path;
+    } else {
+      confdb_system_path = PKGDATADIR "/config";
+      
+      /* For MacOS there are better alternatives */
+#ifdef __APPLE__
+      path = suscan_confdb_get_bundle_path();
+      if (path != NULL)
+        confdb_system_path = path;
+#endif /* __APPLE__ */
+    }
+  }
 
   return confdb_system_path;
 }