fix: minor code refactor

src/cache.c

@@ -0,0 +1,17 @@
+#include <cache.h>
+#include <logger.h>
+
+
+sqlite3 *cache_database;
+
+void
+cache_init()
+{
+    int rc = sqlite3_open(":memory:", &cache_database);
+
+    if(rc)
+    {
+        LOGGER_CRIT("can't open cache database: %s\n", sqlite3_errmsg(cache_database));
+        return;
+    }
+}