copy qt/main.cpp and remove legacy GUI logic

Author: pinheadmz

main.cpp

@@ -0,0 +1,46 @@
+// Copyright (c) 2018-2022 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include <bitcoin-build-config.h> // IWYU pragma: keep
+
+#include <qml/bitcoin.h>
+
+#include <compat/compat.h>
+#include <interfaces/node.h>
+#include <logging.h>
+#include <noui.h>
+#include <util/translation.h>
+
+#include <QCoreApplication>
+
+#include <functional>
+#include <string>
+
+#if defined(QT_STATICPLUGIN)
+#include <QtPlugin>
+#if defined(QT_QPA_PLATFORM_XCB)
+Q_IMPORT_PLUGIN(QXcbIntegrationPlugin);
+#elif defined(QT_QPA_PLATFORM_WINDOWS)
+Q_IMPORT_PLUGIN(QWindowsIntegrationPlugin);
+#elif defined(QT_QPA_PLATFORM_COCOA)
+Q_IMPORT_PLUGIN(QCocoaIntegrationPlugin);
+#elif defined(QT_QPA_PLATFORM_ANDROID)
+Q_IMPORT_PLUGIN(QAndroidPlatformIntegrationPlugin)
+#endif
+#endif
+
+/** Translate string to current locale using Qt. */
+extern const TranslateFn G_TRANSLATION_FUN = [](const char* psz) {
+    return QCoreApplication::translate("bitcoin-core", psz).toStdString();
+};
+
+const std::function<std::string()> G_TEST_GET_FULL_NAME{};
+
+MAIN_FUNCTION
+{
+    // Subscribe to global signals from core.
+    noui_connect();
+
+    return QmlGuiMain(argc, argv);
+}