walletutil: Wallets can also be sqlite

Author: achow101

src/wallet/walletutil.cpp

@@ -8,6 +8,7 @@
 #include <util/system.h>
 
 bool ExistsBerkeleyDatabase(const fs::path& path);
+bool ExistsSQLiteDatabase(const fs::path& path);
 
 fs::path GetWalletDir()
 {
@@ -48,7 +49,8 @@ std::vector<fs::path> ListWalletDir()
         // This can be replaced by boost::filesystem::lexically_relative once boost is bumped to 1.60.
         const fs::path path = it->path().string().substr(offset);
 
-        if (it->status().type() == fs::directory_file && ExistsBerkeleyDatabase(it->path())) {
+        if (it->status().type() == fs::directory_file &&
+            (ExistsBerkeleyDatabase(it->path()) || ExistsSQLiteDatabase(it->path()))) {
             // Found a directory which contains wallet.dat btree file, add it as a wallet.
             paths.emplace_back(path);
         } else if (it.level() == 0 && it->symlink_status().type() == fs::regular_file && ExistsBerkeleyDatabase(it->path())) {