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logError, logWarning; Logger functions; switch to Verbosity enum

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This commit is contained in:
Ben Burdette 2020-04-17 15:07:44 -06:00
parent 12814806ef
commit 3d5b1032a1
7 changed files with 128 additions and 66 deletions
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67
src/error-demo/error-demo.cc
View file

@ -1,4 +1,4 @@
#include "error.hh"
#include "logging.hh"
#include "nixexpr.hh"
#include <iostream>
@ -8,24 +8,25 @@ int main()
{
using namespace nix;
std::unique_ptr<Logger> logger(makeDefaultLogger());
verbosity = lvlError;
// In each program where errors occur, this has to be set.
ErrorInfo::programName = std::optional("error-demo");
// Error in a program; no hint and no nix code.
printErrorInfo(
ErrorInfo { .level = elError,
.name = "name",
logError(
ErrorInfo { .name = "name",
.description = "error description",
});
// Warning with name, description, and hint.
// The hintfmt function makes all the substituted text yellow.
printErrorInfo(
ErrorInfo { .level = elWarning,
.name = "name",
logWarning(
ErrorInfo { .name = "name",
.description = "error description",
.hint = std::optional(
hintfmt("there was a %1%", "warning")),
.hint = hintfmt("there was a %1%", "warning"),
});
@ -34,32 +35,32 @@ int main()
SymbolTable testTable;
auto problem_file = testTable.create("myfile.nix");
printErrorInfo(
ErrorInfo{
.level = elWarning,
.name = "warning name",
.description = "warning description",
.hint = hintfmt("this hint has %1% templated %2%!!", "yellow", "values"),
.nixCode = NixCode {
.errPos = Pos(problem_file, 40, 13),
.prevLineOfCode = std::nullopt,
.errLineOfCode = "this is the problem line of code",
.nextLineOfCode = std::nullopt
}});
logWarning(
ErrorInfo { .name = "warning name",
.description = "warning description",
.hint = hintfmt("this hint has %1% templated %2%!!",
"yellow",
"values"),
.nixCode = NixCode {
.errPos = Pos(problem_file, 40, 13),
.prevLineOfCode = std::nullopt,
.errLineOfCode = "this is the problem line of code",
.nextLineOfCode = std::nullopt
}});
// Error with previous and next lines of code.
printErrorInfo(
ErrorInfo{
.level = elError,
.name = "error name",
.description = "error description",
.hint = hintfmt("this hint has %1% templated %2%!!", "yellow", "values"),
.nixCode = NixCode {
.errPos = Pos(problem_file, 40, 13),
.prevLineOfCode = std::optional("previous line of code"),
.errLineOfCode = "this is the problem line of code",
.nextLineOfCode = std::optional("next line of code"),
}});
logError(
ErrorInfo { .name = "error name",
.description = "error description",
.hint = hintfmt("this hint has %1% templated %2%!!",
"yellow",
"values"),
.nixCode = NixCode {
.errPos = Pos(problem_file, 40, 13),
.prevLineOfCode = std::optional("previous line of code"),
.errLineOfCode = "this is the problem line of code",
.nextLineOfCode = std::optional("next line of code"),
}});
return 0;

4
src/libstore/daemon.cc
View file

@ -73,6 +73,10 @@ struct TunnelLogger : public Logger
enqueueMsg(*buf.s);
}
void logEI(const ErrorInfo & ei) override
{
}
/* startWork() means that we're starting an operation for which we
want to send out stderr to the client. */
void startWork()

50
src/libutil/error.cc
View file

@ -2,6 +2,7 @@
#include <iostream>
#include <optional>
#include "serialise.hh"
namespace nix
{
@ -66,25 +67,45 @@ void printCodeLines(const string &prefix, const NixCode &nixCode)
}
}
void printErrorInfo(const ErrorInfo &einfo)
std::ostream& operator<<(std::ostream &out, const ErrorInfo &einfo)
{
int errwidth = 80;
string prefix = " ";
string levelString;
switch (einfo.level) {
case ErrLevel::elError: {
case Verbosity::lvlError: {
levelString = ANSI_RED;
levelString += "error:";
levelString += ANSI_NORMAL;
break;
}
case ErrLevel::elWarning: {
case Verbosity::lvlWarn: {
levelString = ANSI_YELLOW;
levelString += "warning:";
levelString += ANSI_NORMAL;
break;
}
case Verbosity::lvlInfo: {
levelString = ANSI_YELLOW;
levelString += "info:";
levelString += ANSI_NORMAL;
break;
}
case Verbosity::lvlTalkative:
case Verbosity::lvlChatty:
case Verbosity::lvlVomit: {
levelString = ANSI_GREEN;
levelString += "info:";
levelString += ANSI_NORMAL;
break;
}
case Verbosity::lvlDebug: {
levelString = ANSI_YELLOW;
levelString += "debug:";
levelString += ANSI_NORMAL;
break;
}
default: {
levelString = fmt("invalid error level: %1%", einfo.level);
break;
@ -99,7 +120,7 @@ void printErrorInfo(const ErrorInfo &einfo)
dashes.append("-");
// divider.
std::cout << fmt("%1%%2%" ANSI_BLUE " %3% %4% %5% %6%" ANSI_NORMAL,
out << fmt("%1%%2%" ANSI_BLUE " %3% %4% %5% %6%" ANSI_NORMAL,
prefix,
levelString,
"---",
@ -115,32 +136,33 @@ void printErrorInfo(const ErrorInfo &einfo)
? string(" ") + showErrPos(einfo.nixCode->errPos)
: "";
std::cout << fmt("%1%in file: " ANSI_BLUE "%2%%3%" ANSI_NORMAL,
out << fmt("%1%in file: " ANSI_BLUE "%2%%3%" ANSI_NORMAL,
prefix,
einfo.nixCode->errPos.nixFile,
eline) << std::endl;
std::cout << prefix << std::endl;
out << prefix << std::endl;
} else {
std::cout << fmt("%1%from command line argument", prefix) << std::endl;
std::cout << prefix << std::endl;
out << fmt("%1%from command line argument", prefix) << std::endl;
out << prefix << std::endl;
}
}
// description
std::cout << prefix << einfo.description << std::endl;
std::cout << prefix << std::endl;
out << prefix << einfo.description << std::endl;
out << prefix << std::endl;
// lines of code.
if (einfo.nixCode->errLineOfCode != "") {
printCodeLines(prefix, *einfo.nixCode);
std::cout << prefix << std::endl;
out << prefix << std::endl;
}
// hint
if (einfo.hint.has_value()) {
std::cout << prefix << *einfo.hint << std::endl;
std::cout << prefix << std::endl;
out << prefix << *einfo.hint << std::endl;
out << prefix << std::endl;
}
}
return out;
}
}

19
src/libutil/error.hh
View file

@ -11,9 +11,14 @@ namespace nix
{
typedef enum {
elWarning,
elError
} ErrLevel;
lvlError = 0,
lvlWarn,
lvlInfo,
lvlTalkative,
lvlChatty,
lvlDebug,
lvlVomit
} Verbosity;
struct ErrPos
{
@ -101,7 +106,7 @@ inline hintformat hintfmt(const std::string & fs, const Args & ... args)
// ErrorInfo.
struct ErrorInfo
{
ErrLevel level;
Verbosity level;
string name;
string description;
std::optional<hintformat> hint;
@ -110,11 +115,7 @@ struct ErrorInfo
static std::optional<string> programName;
};
// --------------------------------------------------------
// error printing
// just to cout for now.
void printErrorInfo(const ErrorInfo &einfo);
std::ostream& operator<<(std::ostream &out, const ErrorInfo &einfo);
}

18
src/libutil/logging.cc
View file

@ -3,6 +3,7 @@
#include <atomic>
#include <nlohmann/json.hpp>
#include <sstream>
namespace nix {
@ -57,6 +58,14 @@ public:
writeToStderr(prefix + filterANSIEscapes(fs.s, !tty) + "\n");
}
void logEI(const ErrorInfo & ei) override
{
std::stringstream oss;
oss << ei;
log(ei.level, oss.str());
}
void startActivity(ActivityId act, Verbosity lvl, ActivityType type,
const std::string & s, const Fields & fields, ActivityId parent)
override
@ -135,6 +144,15 @@ struct JSONLogger : Logger
write(json);
}
void logEI(const ErrorInfo & ei) override
{
// nlohmann::json json;
// json["action"] = "msg";
// json["level"] = lvl;
// json["msg"] = fs.s;
// write(json);
}
void startActivity(ActivityId act, Verbosity lvl, ActivityType type,
const std::string & s, const Fields & fields, ActivityId parent) override
{

30
src/libutil/logging.hh
View file

@ -1,19 +1,10 @@
#pragma once
#include "types.hh"
#include "error.hh"
namespace nix {
typedef enum {
lvlError = 0,
lvlWarn,
lvlInfo,
lvlTalkative,
lvlChatty,
lvlDebug,
lvlVomit
} Verbosity;
typedef enum {
actUnknown = 0,
actCopyPath = 100,
@ -70,6 +61,13 @@ public:
log(lvlInfo, fs);
}
virtual void logEI(const ErrorInfo &ei) = 0;
void logEI(Verbosity lvl, ErrorInfo ei) {
ei.level = lvl;
logEI(ei);
}
virtual void warn(const std::string & msg);
virtual void startActivity(ActivityId act, Verbosity lvl, ActivityType type,
@ -157,6 +155,18 @@ extern Verbosity verbosity; /* suppress msgs > this */
#define debug(args...) printMsg(lvlDebug, args)
#define vomit(args...) printMsg(lvlVomit, args)
#define logErrorInfo(level, errorInfo...) \
do { \
if (level <= nix::verbosity) { \
logger->logEI(level, errorInfo); \
} \
} while (0)
#define logError(errorInfo...) logErrorInfo(lvlError, errorInfo)
#define logWarning(errorInfo...) logErrorInfo(lvlWarn, errorInfo)
template<typename... Args>
inline void warn(const std::string & fs, const Args & ... args)
{

6
src/nix/progress-bar.cc
View file

@ -124,6 +124,12 @@ public:
log(*state, lvl, fs.s);
}
void logEI(const ErrorInfo &ei) override
{
auto state(state_.lock());
// log(*state, lvl, ei.as_str());
}
void log(State & state, Verbosity lvl, const std::string & s)
{
if (state.active) {