logger: simplify debug log function name

src/Logger.hpp

@@ -25,6 +25,27 @@ enum class Level : uint8_t {
   Trace = 5,  // -vv
 };
 
+// FIXME: duplicate code in Rustify/Tests.hpp but don't want to include it here.
+// Maybe wait for modules to be stable?
+constexpr std::string_view
+prettifyFuncName(std::string_view func) noexcept {
+  if (func.empty()) {
+    return func;
+  }
+
+  const size_t end = func.find_last_of('(');
+  if (end == std::string_view::npos) {
+    return func;
+  }
+  func = func.substr(0, end);
+
+  const size_t start = func.find_last_of(' ');
+  if (start == std::string_view::npos) {
+    return func;
+  }
+  return func.substr(start + 1);
+}
+
 template <typename Fn>
 concept HeadProcessor = std::is_nothrow_invocable_v<Fn, std::string_view>
                         && Display<std::invoke_result_t<Fn, std::string_view>>;
@@ -118,7 +139,8 @@ class Logger {
         level,
         [lvlStr](const std::string_view func) noexcept {
           return fmt::format(
-              "{}Poac {} {}{} ", gray("["), lvlStr, func, gray("]")
+              "{}Poac {} {}{} ", gray("["), lvlStr, prettifyFuncName(func),
+              gray("]")
           );
         },
         func, fmt, std::forward<Args>(args)...