Split tawashi into lib+executable to enable unit testing

src/tawashi/CMakeLists.txt

@@ -0,0 +1,27 @@
+project(tawashi LANGUAGES CXX)
+
+set(CMAKE_CXX_STANDARD 14)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+add_executable(${PROJECT_NAME}
+	main.cpp
+)
+target_link_libraries(${PROJECT_NAME}
+	PRIVATE tawashi_implem
+)
+
+set_target_properties(
+	${PROJECT_NAME}
+	PROPERTIES SUFFIX .cgi
+)
+
+target_include_directories(${PROJECT_NAME}
+	PRIVATE ${TAWASHI_GEN_INCLUDE_DIR}
+	#hack - add duckhandy to the project instead of picking from inside redis
+	PRIVATE ${TAWASHI_SOURCE_ROOT}/lib/incredis/lib/duckhandy/include
+)
+install(TARGETS ${PROJECT_NAME}
+	LIBRARY DESTINATION lib
+	RUNTIME DESTINATION bin
+	ARCHIVE DESTINATION lib/static
+)

src/tawashi/main.cpp

@@ -0,0 +1,115 @@
+/* Copyright 2017, Michele Santullo
+ * This file is part of "tawashi".
+ *
+ * "tawashi" 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.
+ *
+ * "tawashi" 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 "tawashi".  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "tawashiConfig.h"
+#include "submit_paste_response.hpp"
+#include "pastie_response.hpp"
+#include "index_response.hpp"
+#include "response_factory.hpp"
+#include "cgi_env.hpp"
+#include "ini_file.hpp"
+#include "safe_stack_object.hpp"
+#include "pathname/pathname.hpp"
+#include "duckhandy/compatibility.h"
+#include "settings_bag.hpp"
+#include "logging_levels.hpp"
+#include <spdlog/spdlog.h>
+#include <string>
+#include <fstream>
+#include <iterator>
+#include <ciso646>
+
+//www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4150.pdf
+
+namespace {
+	std::string config_file_path() a_pure;
+
+	std::string config_file_path() {
+		mchlib::PathName config_path(TAWASHI_CONFIG_PATH);
+		mchlib::PathName full_path("");
+		if (config_path.is_absolute()) {
+			full_path = std::move(config_path);
+		}
+		else {
+			full_path = mchlib::PathName(TAWASHI_PATH_PREFIX);
+			full_path.join(config_path);
+		}
+		full_path.join(TAWASHI_CONFIG_FILE);
+		return full_path.path();
+	}
+
+	template <typename T>
+	std::unique_ptr<tawashi::Response> make_response (const Kakoune::SafePtr<tawashi::SettingsBag>& parSettings) {
+		return static_cast<std::unique_ptr<tawashi::Response>>(std::make_unique<T>(parSettings));
+	}
+
+	void fill_defaults (tawashi::SettingsBag& parSettings) {
+		parSettings.add_default("redis_server", "127.0.0.1");
+		parSettings.add_default("redis_port", "6379");
+		parSettings.add_default("redis_mode", "sock");
+		parSettings.add_default("redis_sock", "/tmp/redis.sock");
+		parSettings.add_default("redis_db", "0");
+		parSettings.add_default("base_uri", "http://127.0.0.1");
+		parSettings.add_default("website_root", "");
+		parSettings.add_default("langmap_dir", "/usr/share/source-highlight");
+		parSettings.add_default("min_pastie_size", "10");
+		parSettings.add_default("max_pastie_size", "10000");
+		parSettings.add_default("truncate_long_pasties", "false");
+		parSettings.add_default("logging_level", "err");
+	}
+} //unnamed namespace
+
+int main() {
+	using curry::SafeStackObject;
+	using tawashi::IndexResponse;
+	using tawashi::SubmitPasteResponse;
+	using tawashi::PastieResponse;
+	using tawashi::Response;
+
+	//Prepare the logger
+	spdlog::set_pattern("[%Y-%m-%d %T %z] - %v");
+	spdlog::set_level(spdlog::level::trace); //set to maximum possible here
+	auto statuslog = spdlog::stderr_logger_st("statuslog");
+
+	statuslog->info("Loading config: \"{}\"", config_file_path());
+
+	std::ifstream conf(config_file_path());
+	conf >> std::noskipws;
+	auto ini = SafeStackObject<tawashi::IniFile>(std::istream_iterator<char>(conf), std::istream_iterator<char>());
+	conf.close();
+
+	auto settings = SafeStackObject<tawashi::SettingsBag>(ini);
+	fill_defaults(*settings);
+
+	{
+		auto logging_level = tawashi::LoggingLevels::_from_string_nocase(settings->as<std::string>("logging_level").c_str());
+		spdlog::set_level(static_cast<decltype(spdlog::level::trace)>(logging_level._to_integral()));
+	}
+
+	tawashi::cgi::Env cgi_env;
+	tawashi::ResponseFactory resp_factory(settings);
+	SPDLOG_TRACE(statuslog, "Registering makers in the response factory");
+	resp_factory.register_maker("index.cgi", &make_response<IndexResponse>);
+	resp_factory.register_maker("", &make_response<IndexResponse>);
+	resp_factory.register_maker("paste.cgi", &make_response<SubmitPasteResponse>);
+	resp_factory.register_jolly_maker(&make_response<PastieResponse>);
+
+	std::unique_ptr<Response> response = resp_factory.make_response(cgi_env.path_info().substr(1));
+	response->send();
+
+	return 0;
+}