Begin work on the new delete action.

CMakeLists.txt

@@ -49,6 +49,7 @@ add_subdirectory(src/scan)
 add_subdirectory(src/pq)
 add_subdirectory(src/main)
 add_subdirectory(src/common)
+add_subdirectory(src/delete)
 
 target_link_libraries(${PROJECT_NAME}
 	INTERFACE ${PostgreSQL_LIBRARIES}

src/delete/CMakeLists.txt

@@ -0,0 +1,21 @@
+project(${bare_name}-delete CXX C)
+
+add_executable(${PROJECT_NAME}
+	main.cpp
+	commandline.cpp
+)
+
+target_include_directories(${PROJECT_NAME}
+	PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/..
+)
+
+target_link_libraries(${PROJECT_NAME}
+	PRIVATE ${bare_name}-if
+	PRIVATE ${bare_name}-common
+)
+
+string(REPLACE "${bare_name}-" "" ACTION_NAME "${PROJECT_NAME}")
+target_compile_definitions(${PROJECT_NAME}
+	PRIVATE ACTION_NAME="${ACTION_NAME}"
+)
+

src/delete/commandline.cpp

@@ -0,0 +1,70 @@
+/* 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 "dindexer-common/commandline.hpp"
+#include <boost/program_options.hpp>
+#include <iostream>
+#include <cstdint>
+#include <vector>
+
+namespace po = boost::program_options;
+
+namespace din {
+	ValidationError::ValidationError (const po::validation_error& parOther) :
+		po::validation_error(parOther)
+	{
+	}
+
+	const std::string& ValidationError::raw_value() const {
+		auto it_ret = m_substitutions.find("value");
+		return it_ret->second;
+	}
+
+	bool parse_commandline (int parArgc, char* parArgv[], po::variables_map& parVarMap) {
+		po::options_description set_options(ACTION_NAME " options");
+		set_options.add_options()
+			("confirm,c", "Assume yes to all answers")
+			//("option,o", po::value<std::string>()->default_value("default_value"), "Help message")
+			//("option2", po::value<int>(), "Help message")
+		;
+
+		po::options_description positional_options("Positional options");
+		positional_options.add_options()
+			("groupid", po::value<std::vector<uint32_t>>(), "IDs to delete")
+		;
+		const auto desc = dinlib::get_default_commandline();
+		po::options_description all("Available options");
+		po::positional_options_description pd;
+		all.add(desc).add(positional_options).add(set_options);
+		pd.add("groupid", -1);//.add("pos_option2", 1);
+		try {
+			po::store(po::command_line_parser(parArgc, parArgv).options(all).positional(pd).run(), parVarMap);
+		}
+		catch (const po::validation_error& err) {
+			throw ValidationError(err);
+		}
+
+		po::notify(parVarMap);
+
+		if (dinlib::manage_common_commandline(std::cout, ACTION_NAME, "[options...] id [id...]", parVarMap, {std::cref(desc), std::cref(set_options)})) {
+			return true;
+		}
+
+		return false;
+	}
+} //namespace din

src/delete/commandline.hpp

@@ -0,0 +1,37 @@
+/* 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/>.
+ */
+
+#ifndef idB6191389C4AD4EE5862CCF1591BE6CE5
+#define idB6191389C4AD4EE5862CCF1591BE6CE5
+
+#include <boost/program_options/variables_map.hpp>
+#include <boost/program_options/errors.hpp>
+#include "dindexer-common/mediatypes.hpp"
+
+namespace din {
+	class ValidationError : boost::program_options::validation_error {
+	public:
+		explicit ValidationError ( const boost::program_options::validation_error& parOther );
+		~ValidationError ( void ) noexcept = default;
+
+		const std::string& raw_value ( void ) const;
+	};
+
+	bool parse_commandline ( int parArgc, char* parArgv[], boost::program_options::variables_map& parVarMap );
+} //namespace din
+
+#endif

src/delete/main.cpp

@@ -0,0 +1,49 @@
+/* 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 <iostream>
+#include <vector>
+#include <cstdint>
+
+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;
+	}
+	catch (const din::ValidationError& err) {
+		std::cerr << "Unrecognized id \"" << err.raw_value() << "\", see --help for usage details\n";
+		return 2;
+	}
+
+	auto ids = vm["groupid"].as<std::vector<uint32_t>>();
+	std::cout << "Would delete " << ids.size() << " ids: ";
+	for (auto n : ids) {
+		std::cout << n << ", ";
+	}
+	std::cout << std::endl;
+	return 0;
+}
+

src/scan/commandline.cpp

@@ -54,7 +54,7 @@ namespace din {
 			type_param_help = oss.str();
 		}
 
-		po::options_description set_options("Set options");
+		po::options_description set_options(ACTION_NAME " options");
 		set_options.add_options()
 			("ignore-errors", "Move on even if reading a file fails. Unreadable files are marked as such in the db.")
 #if defined(WITH_PROGRESS_FEEDBACK)