rpc: Add listwalletdir RPC

Author: promag

src/wallet/rpcwallet.cpp

@@ -2450,6 +2450,38 @@ static UniValue getwalletinfo(const JSONRPCRequest& request)
     return obj;
 }
 
+static UniValue listwalletdir(const JSONRPCRequest& request)
+{
+    if (request.fHelp || request.params.size() != 0) {
+        throw std::runtime_error(
+            "listwalletdir\n"
+            "Returns a list of wallets in the wallet directory.\n"
+            "{\n"
+            "  \"wallets\" : [                (json array of objects)\n"
+            "    {\n"
+            "      \"name\" : \"name\"          (string) The wallet name\n"
+            "    }\n"
+            "    ,...\n"
+            "  ]\n"
+            "}\n"
+            "\nExamples:\n"
+            + HelpExampleCli("listwalletdir", "")
+            + HelpExampleRpc("listwalletdir", "")
+        );
+    }
+
+    UniValue wallets(UniValue::VARR);
+    for (const auto& path : ListWalletDir()) {
+        UniValue wallet(UniValue::VOBJ);
+        wallet.pushKV("name", path.string());
+        wallets.push_back(wallet);
+    }
+
+    UniValue result(UniValue::VOBJ);
+    result.pushKV("wallets", wallets);
+    return result;
+}
+
 static UniValue listwallets(const JSONRPCRequest& request)
 {
     if (request.fHelp || request.params.size() != 0)
@@ -4102,6 +4134,7 @@ static const CRPCCommand commands[] =
     { "wallet",             "listsinceblock",                   &listsinceblock,                {"blockhash","target_confirmations","include_watchonly","include_removed"} },
     { "wallet",             "listtransactions",                 &listtransactions,              {"dummy","count","skip","include_watchonly"} },
     { "wallet",             "listunspent",                      &listunspent,                   {"minconf","maxconf","addresses","include_unsafe","query_options"} },
+    { "wallet",             "listwalletdir",                    &listwalletdir,                 {} },
     { "wallet",             "listwallets",                      &listwallets,                   {} },
     { "wallet",             "loadwallet",                       &loadwallet,                    {"filename"} },
     { "wallet",             "lockunspent",                      &lockunspent,                   {"unlock","transactions"} },