1 files changed, 150 insertions, 0 deletions
diff --git a/lib/spdlog/sinks/ansicolor_sink.h b/lib/spdlog/sinks/ansicolor_sink.h
new file mode 100644
index 0000000..e74389c
--- /dev/null
+++ b/lib/spdlog/sinks/ansicolor_sink.h
@@ -0,0 +1,150 @@
+//
+// Copyright(c) 2017 spdlog authors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#include "../common.h"
+#include "../details/os.h"
+#include "base_sink.h"
+
+#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<class Mutex>
+class ansicolor_sink : public base_sink<Mutex>
+{
+public:
+    explicit ansicolor_sink(FILE *file)
+        : target_file_(file)
+    {
+        should_do_colors_ = details::os::in_terminal(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
+    {
+        _flush();
+    }
+
+    void set_color(level::level_enum color_level, const std::string &color)
+    {
+        std::lock_guard<Mutex> lock(base_sink<Mutex>::_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";
+
+protected:
+    void _sink_it(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.
+        if (should_do_colors_ && msg.color_range_end > msg.color_range_start)
+        {
+            // before color range
+            _print_range(msg, 0, msg.color_range_start);
+            // in color range
+            _print_ccode(colors_[msg.level]);
+            _print_range(msg, msg.color_range_start, msg.color_range_end);
+            _print_ccode(reset);
+            // after color range
+            _print_range(msg, msg.color_range_end, msg.formatted.size());
+        }
+        else
+        {
+            _print_range(msg, 0, msg.formatted.size());
+        }
+        _flush();
+    }
+
+    void _flush() override
+    {
+        fflush(target_file_);
+    }
+
+private:
+    void _print_ccode(const std::string &color_code)
+    {
+        fwrite(color_code.data(), sizeof(char), color_code.size(), target_file_);
+    }
+    void _print_range(const details::log_msg &msg, size_t start, size_t end)
+    {
+        fwrite(msg.formatted.data() + start, sizeof(char), end - start, target_file_);
+    }
+    FILE *target_file_;
+    bool should_do_colors_;
+    std::unordered_map<level::level_enum, std::string, level::level_hasher> colors_;
+};
+
+template<class Mutex>
+class ansicolor_stdout_sink : public ansicolor_sink<Mutex>
+{
+public:
+    ansicolor_stdout_sink()
+        : ansicolor_sink<Mutex>(stdout)
+    {
+    }
+};
+
+using ansicolor_stdout_sink_mt = ansicolor_stdout_sink<std::mutex>;
+using ansicolor_stdout_sink_st = ansicolor_stdout_sink<details::null_mutex>;
+
+template<class Mutex>
+class ansicolor_stderr_sink : public ansicolor_sink<Mutex>
+{
+public:
+    ansicolor_stderr_sink()
+        : ansicolor_sink<Mutex>(stderr)
+    {
+    }
+};
+
+using ansicolor_stderr_sink_mt = ansicolor_stderr_sink<std::mutex>;
+using ansicolor_stderr_sink_st = ansicolor_stderr_sink<details::null_mutex>;
+
+} // namespace sinks
+} // namespace spdlog