Implement "locate" action.

src/locate/main.cpp

@@ -0,0 +1,65 @@
+/* Copyright 2015, Michele Santullo
+ * This file is part of "dindexer".
+ *
+ * "dindexer" 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * "dindexer" 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 "dindexer".  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "commandline.hpp"
+#include "postgre_locate.hpp"
+#include "dindexer-common/settings.hpp"
+#include "dindexerConfig.h"
+#include <iostream>
+#include <ciso646>
+#include <iterator>
+#include <algorithm>
+
+namespace din {
+	std::ostream& operator<< (std::ostream& parStream, const LocatedItem& parItem) {
+		parStream << parItem.group_id << '\t' << parItem.id << '\t' << parItem.path;
+		return parStream;
+	}
+} //namespace din
+
+int main (int parArgc, char* parArgv[]) {
+	using boost::program_options::variables_map;
+
+	variables_map vm;
+	try {
+		if (din::parse_commandline(parArgc, parArgv, vm)) {
+			return 0;
+		}
+	}
+	catch (const std::invalid_argument& err) {
+		std::cerr << err.what() << "\nUse --help for help" << std::endl;
+		return 2;
+	}
+
+	if (not vm.count("substring")) {
+		std::cerr << "Missing search parameter, please use --help for usage instructions.\n";
+		return 2;
+	}
+
+	dinlib::Settings settings;
+	{
+		const bool loaded = dinlib::load_settings(CONFIG_FILE_PATH, settings);
+		if (not loaded) {
+			std::cerr << "Can't load settings from " << CONFIG_FILE_PATH << ", quitting\n";
+			return 1;
+		}
+	}
+
+	const auto results = din::locate_in_db(settings.db, vm["substring"].as<std::string>(), not not vm.count("case-insensitive"));
+	std::copy(results.begin(), results.end(), std::ostream_iterator<din::LocatedItem>(std::cout, "\n"));
+	return 0;
+}