test/run_input: move code from Scan() to input/ScanTags.cxx

src/input/ScanTags.cxx

@@ -0,0 +1,40 @@
+/*
+ * Copyright 2003-2017 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+#include "ScanTags.hxx"
+#include "RemoteTagScanner.hxx"
+#include "InputPlugin.hxx"
+#include "Registry.hxx"
+
+std::unique_ptr<RemoteTagScanner>
+InputScanTags(const char *uri, RemoteTagHandler &handler)
+{
+	input_plugins_for_each_enabled(plugin) {
+		if (plugin->scan_tags == nullptr)
+			continue;
+
+		auto scanner = plugin->scan_tags(uri, handler);
+		if (scanner)
+			return scanner;
+	}
+
+	/* unsupported URI */
+	return nullptr;
+}

src/input/ScanTags.hxx

@@ -0,0 +1,42 @@
+/*
+ * Copyright 2003-2017 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef MPD_INPUT_SCAN_TAGS_HXX
+#define MPD_INPUT_SCAN_TAGS_HXX
+
+#include "check.h"
+
+#include <memory>
+
+class RemoteTagScanner;
+class RemoteTagHandler;
+
+/**
+ * Find an #InputPlugin which supports the given URI and let it create
+ * a #RemoteTagScanner.
+ *
+ * Throws exception on error
+ *
+ * @return a #RemoteTagScanner or nullptr if the URI is not supported
+ * by any (enabled) plugin
+ */
+std::unique_ptr<RemoteTagScanner>
+InputScanTags(const char *uri, RemoteTagHandler &handler);
+
+#endif