Set everything to be able to update/rescan from kurisu

inc/lektor/repo.h

@@ -3,6 +3,8 @@
 #include <lektor/defines.h>
 #include <lektor/mkv.h>
 #include <lektor/thread.h>
+#include <lektor/uri.h>
+
 #include <curl/curl.h>
 #include <sqlite3.h>
 #include <json.h>
@@ -36,3 +38,9 @@ int repo_download_id_sync(struct lkt_repo *const repo, sqlite3 *db, const uint64
                           const char *kara_path, struct kara_metadata *mdt_ret);
 int repo_download_id_async(const size_t id);
 int repo_get_kara_async(struct kara **downloaded);
+
+/* Scan and update the DB.
+   If only update from the kurisu repo, rescan must be null, if you want to
+   also scan the directories, set rescan to a non zero value. If the uri is
+   null, will just update/rescan everything. */
+int repo_sync(struct lkt_uri_t *uri, int rescan);

meson.build

@@ -39,7 +39,8 @@ core_sources =  [ 'src/mkv/bufferfd.c'
                 , 'src/uri.c'
                 , 'src/ini/ini.c'
                 , 'src/repo/curl.c'
-                , 'src/repo/async.c'
+                , 'src/repo/downloader.c'
+                , 'src/repo/sync.c'
                 , 'src/thread.c'
                 ]
 

src/repo/sync.c

+#define _POSIX_C_SOURCE 200809L
+
+#include <lektor/repo.h>
+
+int
+repo_sync(struct lkt_uri_t *uri, int rescan)
+{
+    (void) rescan;
+    (void) uri;
+    return 1;
+}