| // |
| // Copyright(c) 2017 spdlog authors. |
| // Distributed under the MIT License (http://opensource.org/licenses/MIT) |
| // |
| |
| #pragma once |
| |
| #ifndef SPDLOG_H |
| #include "spdlog/spdlog.h" |
| #endif |
| |
| #include "spdlog/details/console_globals.h" |
| #include "spdlog/details/null_mutex.h" |
| #include "spdlog/details/os.h" |
| #include "spdlog/sinks/sink.h" |
| |
| #include <memory> |
| #include <mutex> |
| #include <string> |
| #include <unordered_map> |
| |
| namespace spdlog { |
| namespace sinks { |
| |
| /** |
| * This sink prefixes the output with an ANSI escape sequence color code |
| * depending on the severity |
| * of the message. |
| * If no color terminal detected, omit the escape codes. |
| */ |
| template<typename TargetStream, class ConsoleMutex> |
| class ansicolor_sink final : public sink |
| { |
| public: |
| using mutex_t = typename ConsoleMutex::mutex_t; |
| ansicolor_sink() |
| : target_file_(TargetStream::stream()) |
| , mutex_(ConsoleMutex::mutex()) |
| |
| { |
| should_do_colors_ = details::os::in_terminal(target_file_) && details::os::is_color_terminal(); |
| colors_[level::trace] = white; |
| colors_[level::debug] = cyan; |
| colors_[level::info] = green; |
| colors_[level::warn] = yellow + bold; |
| colors_[level::err] = red + bold; |
| colors_[level::critical] = bold + on_red; |
| colors_[level::off] = reset; |
| } |
| |
| ~ansicolor_sink() override = default; |
| |
| ansicolor_sink(const ansicolor_sink &other) = delete; |
| ansicolor_sink &operator=(const ansicolor_sink &other) = delete; |
| |
| void set_color(level::level_enum color_level, const std::string &color) |
| { |
| std::lock_guard<mutex_t> lock(mutex_); |
| colors_[color_level] = color; |
| } |
| |
| /// Formatting codes |
| const std::string reset = "\033[m"; |
| const std::string bold = "\033[1m"; |
| const std::string dark = "\033[2m"; |
| const std::string underline = "\033[4m"; |
| const std::string blink = "\033[5m"; |
| const std::string reverse = "\033[7m"; |
| const std::string concealed = "\033[8m"; |
| const std::string clear_line = "\033[K"; |
| |
| // Foreground colors |
| const std::string black = "\033[30m"; |
| const std::string red = "\033[31m"; |
| const std::string green = "\033[32m"; |
| const std::string yellow = "\033[33m"; |
| const std::string blue = "\033[34m"; |
| const std::string magenta = "\033[35m"; |
| const std::string cyan = "\033[36m"; |
| const std::string white = "\033[37m"; |
| |
| /// Background colors |
| const std::string on_black = "\033[40m"; |
| const std::string on_red = "\033[41m"; |
| const std::string on_green = "\033[42m"; |
| const std::string on_yellow = "\033[43m"; |
| const std::string on_blue = "\033[44m"; |
| const std::string on_magenta = "\033[45m"; |
| const std::string on_cyan = "\033[46m"; |
| const std::string on_white = "\033[47m"; |
| |
| void log(const details::log_msg &msg) override |
| { |
| // Wrap the originally formatted message in color codes. |
| // If color is not supported in the terminal, log as is instead. |
| std::lock_guard<mutex_t> lock(mutex_); |
| |
| fmt::memory_buffer formatted; |
| formatter_->format(msg, formatted); |
| if (should_do_colors_ && msg.color_range_end > msg.color_range_start) |
| { |
| // before color range |
| print_range_(formatted, 0, msg.color_range_start); |
| // in color range |
| print_ccode_(colors_[msg.level]); |
| print_range_(formatted, msg.color_range_start, msg.color_range_end); |
| print_ccode_(reset); |
| // after color range |
| print_range_(formatted, msg.color_range_end, formatted.size()); |
| } |
| else // no color |
| { |
| print_range_(formatted, 0, formatted.size()); |
| } |
| fflush(target_file_); |
| } |
| |
| void flush() override |
| { |
| std::lock_guard<mutex_t> lock(mutex_); |
| fflush(target_file_); |
| } |
| |
| void set_pattern(const std::string &pattern) final |
| { |
| std::lock_guard<mutex_t> lock(mutex_); |
| formatter_ = std::unique_ptr<spdlog::formatter>(new pattern_formatter(pattern)); |
| } |
| |
| void set_formatter(std::unique_ptr<spdlog::formatter> sink_formatter) override |
| { |
| std::lock_guard<mutex_t> lock(mutex_); |
| formatter_ = std::move(sink_formatter); |
| } |
| |
| bool should_color() |
| { |
| return should_do_colors_; |
| } |
| |
| private: |
| void print_ccode_(const std::string &color_code) |
| { |
| fwrite(color_code.data(), sizeof(char), color_code.size(), target_file_); |
| } |
| void print_range_(const fmt::memory_buffer &formatted, size_t start, size_t end) |
| { |
| fwrite(formatted.data() + start, sizeof(char), end - start, target_file_); |
| } |
| |
| FILE *target_file_; |
| mutex_t &mutex_; |
| |
| bool should_do_colors_; |
| std::unordered_map<level::level_enum, std::string, level::level_hasher> colors_; |
| }; |
| |
| using ansicolor_stdout_sink_mt = ansicolor_sink<details::console_stdout, details::console_mutex>; |
| using ansicolor_stdout_sink_st = ansicolor_sink<details::console_stdout, details::console_nullmutex>; |
| |
| using ansicolor_stderr_sink_mt = ansicolor_sink<details::console_stderr, details::console_mutex>; |
| using ansicolor_stderr_sink_st = ansicolor_sink<details::console_stderr, details::console_nullmutex>; |
| |
| } // namespace sinks |
| |
| } // namespace spdlog |