1#include "nix-eval/src/logging.rs"2#include "logging.hh"3#include <nix/util/logging.hh>45using namespace nix;67struct TracingLogger : Logger {8 TracingLogger() {}910 bool isVerbose() override { return true; }11 void log(Verbosity lvl, std::string_view s) override {12 rust::Str str(s.data(), s.size());13 emit_log(lvl, str);14 }15 void logEI(const ErrorInfo &ei) override { emit_log(ei.level, ei.msg.str()); }1617 void startActivity(ActivityId act, Verbosity lvl, ActivityType type,18 const std::string &s, const Fields &fields,19 ActivityId parent) override {20 auto b = new_start_activity(act, lvl, type);21 for (auto &f : fields) {22 if (f.type == Logger::Field::tInt) {23 b->add_int_field(f.i);24 } else if (f.type == Logger::Field::tString) {25 b->add_string_field(f.s);26 } else {27 unreachable();28 }29 }30 b->emit(parent, s);31 };3233 void stopActivity(ActivityId act) override { emit_stop(act); };3435 void result(ActivityId act, ResultType type, const Fields &fields) override {36 auto b = new_start_activity(act, 0, type);37 for (auto &f : fields) {38 if (f.type == Logger::Field::tInt) {39 b->add_int_field(f.i);40 } else if (f.type == Logger::Field::tString) {41 b->add_string_field(f.s);42 } else {43 unreachable();44 }45 }46 b->emit_result(type);47 };4849 void writeToStdout(std::string_view s) override {50 emit_warn("writeToStdout() called, but unsupported");51 }52 void warn(const std::string &msg) override { emit_warn(msg); }5354 virtual std::optional<char> ask(std::string_view s) {55 emit_warn("ask() called, but unsupported");56 return {};57 }58};5960extern "C" {61void apply_tracing_logger() {62 logger = std::make_unique<TracingLogger>();63 // verbosity = lvlVomit;64}65}