Builder.h


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#pragma once

#include <filesystem>
#include <functional>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <vector>

#include <boost/property_tree/ptree.hpp>

#include "LanguageSettings.h"
#include "ProcessRunner.h"

class Builder
{
public:
 Builder(const boost::property_tree::ptree& ptree, const std::string& target);

 void build();
 void run_tests();

 void clean();

private:
 std::unordered_map<std::filesystem::path, std::vector<std::filesystem::path>> get_dependencies(const boost::property_tree::ptree& ptree, bool include_sources = true) const;
 std::vector<std::filesystem::path> dependencies_of(const std::filesystem::path& p) const;
 std::vector<std::filesystem::path> include_paths_of_object(const std::filesystem::path& p) const;
 std::filesystem::path target_from_object(const std::filesystem::path& object) const;
 std::vector<std::string> link_libs_of(const std::filesystem::path& p) const;
 bool is_outdated(const std::filesystem::path& p) const;
 bool is_outdated(const std::filesystem::path& p, const std::vector<std::filesystem::path> &dependencies) const;
 std::vector<std::filesystem::path> make_depfile_from(const std::filesystem::path& p) const;
 std::filesystem::path get_compile_unit_source_from_object(const std::filesystem::path& path);
 std::unordered_set<std::filesystem::path> get_buildlist(std::function<bool(const std::filesystem::path&)> outdated_pred);

 void build_file(const std::filesystem::path& p);
 void build_filelist();

 void cleanup_buildlist();

 const boost::property_tree::ptree _ptree;
 std::string _target;
 std::vector<std::filesystem::path> _all_targets;
 std::vector<std::filesystem::path> _all_objects;
 std::unordered_map<std::filesystem::path, std::vector<std::filesystem::path>> _dependencies;
 std::unordered_map<std::filesystem::path, std::vector<std::filesystem::path>> _include_paths;
 std::unordered_map<std::filesystem::path, std::vector<std::string>> _link_libs;

 LanguageSettings _lang;
 ProcessRunner _runner;

 std::unordered_set<std::filesystem::path> _buildlist; // build done
 std::unordered_set<std::filesystem::path> _activelist; // currently building
 std::unordered_set<std::filesystem::path> _donelist; // build done
};