file_searcher.hpp

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#pragma once
 
#include <filesystem>
#include <map>
#include <regex>
#include <string>
#include <string_view>
#include <vector>
 
namespace asmgrader {
 
class FileSearcher
{
public:
    static constexpr auto DEFAULT_SEARCH_DEPTH = 10;
 
    explicit FileSearcher(std::string expr, std::map<std::string, std::string> args = {});
 
    std::vector<std::filesystem::path> search(const std::filesystem::path& base);
 
    std::vector<std::filesystem::path> search_recursive(const std::filesystem::path& base,
                                                        int max_depth = DEFAULT_SEARCH_DEPTH);
 
protected:
    std::string set_arg(const std::string& key, std::string_view value);
 
    std::string get_expr() const;
 
private:
    std::string subst_args() const;
    static bool does_match(const std::regex& expr, std::string_view filename);
 
    std::string expr_;
    std::map<std::string, std::string> args_;
};
 
} // namespace asmgrader