Move sources to ... well, src ;)

1 files changed, 316 insertions, 0 deletions

diff --git a/src/libcppbuild.cc b/src/libcppbuild.cc
new file mode 100644
index 0000000..d3d8a51
--- /dev/null
+++ b/src/libcppbuild.cc
@@ -0,0 +1,316 @@
+#include <vector>
+#include <string>
+#include <filesystem>
+#include <iostream>
+#include <utility>
+#include <list>
+#include <thread>
+#include <memory>
+#include <algorithm>
+#include <list>
+#include <array>
+#include <deque>
+#include <fstream>
+#include <cstdlib>
+#include <set>
+
+#include <getoptpp/getoptpp.hpp>
+
+#include "libcppbuild.h"
+#include "settings.h"
+#include "configure.h"
+#include "rebuild.h"
+#include "tasks.h"
+#include "build.h"
+int main(int argc, char* argv[])
+{
+	if(argc > 1 && std::string(argv[1]) == "configure")
+	{
+		return configure(argc, argv);
+	}
+
+	Settings settings{};
+
+	settings.builddir = getConfiguration(cfg::builddir, "build");
+	settings.parallel_processes =
+		std::max(1u, std::thread::hardware_concurrency() * 2 - 1);
+	settings.verbose = 0;
+
+	bool write_compilation_database{false};
+	std::string compilation_database;
+	bool print_configure_cmd{false};
+	bool print_configure_db{false};
+	std::vector<std::string> add_files;
+	std::vector<std::string> remove_files;
+	bool list_files{false};
+	bool list_targets{false};
+	bool no_relaunch{false}; // true means no re-launch after rebuild.
+
+	dg::Options opt;
+	int key{128};
+
+	opt.add("jobs", required_argument, 'j',
+	        "Number of parallel jobs. (default: cpucount * 2 - 1)",
+	        [&]() {
+		        try
+		        {
+			        settings.parallel_processes = std::stoi(optarg);
+		        }
+		        catch(...)
+		        {
+			        std::cerr << "Not a number\n";
+			        return 1;
+		        }
+		        return 0;
+	        });
+
+	opt.add("build-dir", required_argument, 'b',
+	        "Overload output directory for build files (default: '" +
+	        settings.builddir + "').",
+	        [&]() {
+		        settings.builddir = optarg;
+		        return 0;
+	        });
+
+	opt.add("verbose", no_argument, 'v',
+	        "Be verbose. Add multiple times for more verbosity.",
+	        [&]() {
+		        settings.verbose++;
+		        return 0;
+	        });
+
+	opt.add("add", required_argument, 'a',
+	        "Add specified file to the build configurations.",
+	        [&]() {
+		        no_relaunch = true;
+		        add_files.push_back(optarg);
+		        return 0;
+	        });
+
+	opt.add("remove", required_argument, 'r',
+	        "Remove specified file from the build configurations.",
+	        [&]() {
+		        no_relaunch = true;
+		        remove_files.push_back(optarg);
+		        return 0;
+	        });
+
+	opt.add("list-files", no_argument, 'L',
+	        "List files in the build configurations.",
+	        [&]() {
+		        no_relaunch = true;
+		        list_files = true;
+		        return 0;
+	        });
+
+	opt.add("list-targets", no_argument, 'l',
+	        "List targets.",
+	        [&]() {
+		        no_relaunch = true;
+		        list_targets = true;
+		        return 0;
+	        });
+
+	opt.add("configure-cmd", no_argument, key++,
+	        "Print commandline for last configure.",
+	        [&]() {
+		        no_relaunch = true;
+		        print_configure_cmd = true;
+		        return 0;
+	        });
+
+	opt.add("configure-db", no_argument, key++,
+	        "Print entire configure parameter database.",
+	        [&]() {
+		        no_relaunch = true;
+		        print_configure_db = true;
+		        return 0;
+	        });
+
+	opt.add("database", required_argument, 'd',
+	        "Write compilation database json file.",
+	        [&]() {
+		        no_relaunch = true;
+		        write_compilation_database = true;
+		        compilation_database = optarg;
+		        return 0;
+	        });
+
+	opt.add("help", no_argument, 'h',
+	        "Print this help text.",
+	        [&]() {
+		        std::cout << "Usage: " << argv[0] << " [options] [target] ...\n";
+		        std::cout <<
+R"_( where target can be either:
+   configure - run configuration step (cannot be used with other targets).
+   clean     - clean all generated files.
+   all       - build all targets (default)
+ or the name of a target which will be built along with its dependencies.
+ Use '-l' to see a list of possible target names.
+
+Options:
+)_";
+		        opt.help();
+		        exit(0);
+		        return 0;
+	        });
+
+	opt.process(argc, argv);
+
+	auto verbose_env = std::getenv("V");
+	if(verbose_env)
+	{
+		settings.verbose = std::atoi(verbose_env);
+	}
+
+	if(list_files)
+	{
+		std::set<std::string> files;
+		for(std::size_t i = 0; i < numConfigFiles; ++i)
+		{
+			files.insert(configFiles[i].file);
+		}
+
+		for(const auto& file : files)
+		{
+			std::cout << file << "\n";
+		}
+	}
+
+	if(!add_files.empty() || !remove_files.empty())
+	{
+		for(const auto& add_file : add_files)
+		{
+			reg(add_file.data(), [](){ return std::vector<BuildConfiguration>{};});
+		}
+
+		for(const auto& remove_file : remove_files)
+		{
+			unreg(remove_file.data());
+		}
+
+		// Force rebuild if files were added
+		recompileCheck(settings, 1, argv, true, no_relaunch == false);
+	}
+
+	recompileCheck(settings, argc, argv);
+
+	std::filesystem::path builddir(settings.builddir);
+	std::filesystem::create_directories(builddir);
+
+	auto all_tasks = getTasks(settings);
+
+	if(list_targets)
+	{
+		for(const auto& task : all_tasks)
+		{
+			if(task->targetType() != TargetType::Object)
+			{
+				std::cout << task->name() << "\n";
+			}
+		}
+	}
+
+	if(write_compilation_database)
+	{
+		std::ofstream istr(compilation_database);
+		istr << "[";
+		bool first{true};
+		for(auto task : all_tasks)
+		{
+			auto s = task->toJSON();
+			if(!s.empty())
+			{
+				if(!first)
+				{
+					istr << ",\n";
+				}
+				else
+				{
+					istr << "\n";
+				}
+				first = false;
+				istr << s;
+			}
+		}
+		istr << "\n]\n";
+	}
+
+	if(print_configure_cmd)
+	{
+		std::cout << getConfiguration("cmd") << "\n";
+	}
+
+	if(print_configure_db)
+	{
+		const auto& c = configuration();
+		for(const auto& config : c)
+		{
+			std::cout << config.first << ": " << config.second << "\n";
+		}
+	}
+
+	for(auto task : all_tasks)
+	{
+		if(task->registerDepTasks(all_tasks))
+		{
+			return 1;
+		}
+	}
+
+	bool build_all{true};
+	for(const auto& arg : opt.arguments())
+	{
+		if(arg == "configure")
+		{
+			std::cerr << "The 'configure' target must be the first argument.\n";
+			return 1;
+		}
+
+		if(arg == "clean")
+		{
+			build_all = false;
+
+			std::cout << "Cleaning\n";
+			for(auto& task : all_tasks)
+			{
+				if(task->clean() != 0)
+				{
+					return 1;
+				}
+			}
+		}
+		else
+		{
+			build_all = false;
+
+			if(arg == "all")
+			{
+				auto ret = build(settings, "all", all_tasks, all_tasks);
+				if(ret != 0)
+				{
+					return ret;
+				}
+			}
+			else
+			{
+				auto ret = build(settings, arg, all_tasks);
+				if(ret != 0)
+				{
+					return ret;
+				}
+			}
+		}
+	}
+
+	if(build_all)
+	{
+		auto ret = build(settings, "all", all_tasks, all_tasks);
+		if(ret != 0)
+		{
+			return ret;
+		}
+	}
+
+	return 0;
+}