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#include "log.h"
#include <QString>
#include <QIODevice>
#include <QCoreApplication>
#include <iostream>
#include <unistd.h>
using namespace Sink::Log;
class DebugStream: public QIODevice
{
public:
QString m_location;
DebugStream()
: QIODevice()
{
open(WriteOnly);
}
virtual ~DebugStream();
bool isSequential() const { return true; }
qint64 readData(char *, qint64) { return 0; /* eof */ }
qint64 readLineData(char *, qint64) { return 0; /* eof */ }
qint64 writeData(const char *data, qint64 len)
{
const QByteArray buf = QByteArray::fromRawData(data, len);
// if (!qgetenv("IMAP_TRACE").isEmpty()) {
// qt_message_output(QtDebugMsg, buf.trimmed().constData());
std::cout << buf.trimmed().constData() << std::endl;
// }
return len;
}
private:
Q_DISABLE_COPY(DebugStream)
};
//Virtual method anchor
DebugStream::~DebugStream()
{}
class NullStream: public QIODevice
{
public:
NullStream()
: QIODevice()
{
open(WriteOnly);
}
virtual ~NullStream();
bool isSequential() const { return true; }
qint64 readData(char *, qint64) { return 0; /* eof */ }
qint64 readLineData(char *, qint64) { return 0; /* eof */ }
qint64 writeData(const char *data, qint64 len)
{
return len;
}
private:
Q_DISABLE_COPY(NullStream)
};
//Virtual method anchor
NullStream::~NullStream()
{}
/*
* ANSI color codes:
* 0: reset colors/style
* 1: bold
* 4: underline
* 30 - 37: black, red, green, yellow, blue, magenta, cyan, and white text
* 40 - 47: black, red, green, yellow, blue, magenta, cyan, and white background
*/
enum ANSI_Colors {
DoNothing = -1,
Reset = 0,
Bold = 1,
Underline = 4,
Black = 30,
Red = 31,
Green = 32,
Yellow = 33,
Blue = 34
};
static QString colorCommand(int colorCode)
{
return QString("\x1b[%1m").arg(colorCode);
}
static QString colorCommand(QList<int> colorCodes)
{
colorCodes.removeAll(ANSI_Colors::DoNothing);
if (colorCodes.isEmpty()) {
return QString();
}
QString string("\x1b[");
for (int code : colorCodes) {
string += QString("%1;").arg(code);
}
string.chop(1);
string += "m";
return string;
}
QByteArray Sink::Log::debugLevelName(DebugLevel debugLevel)
{
switch (debugLevel) {
case DebugLevel::Trace:
return "Trace";
case DebugLevel::Log:
return "Log";
case DebugLevel::Warning:
return "Warning";
case DebugLevel::Error:
return "Error";
default:
break;
};
Q_ASSERT(false);
return QByteArray();
}
DebugLevel Sink::Log::debugLevelFromName(const QByteArray &name)
{
const QByteArray lowercaseName = name.toLower();
if (lowercaseName == "trace")
return DebugLevel::Trace;
if (lowercaseName == "log")
return DebugLevel::Log;
if (lowercaseName == "warning")
return DebugLevel::Warning;
if (lowercaseName == "error")
return DebugLevel::Error;
return DebugLevel::Log;
}
void Sink::Log::setDebugOutputLevel(DebugLevel debugLevel)
{
qputenv("SINKDEBUGLEVEL", debugLevelName(debugLevel));
}
Sink::Log::DebugLevel Sink::Log::debugOutputLevel()
{
return debugLevelFromName(qgetenv("SINKDEBUGLEVEL"));
}
QDebug Sink::Log::debugStream(DebugLevel debugLevel, int line, const char* file, const char* function, const char* debugArea)
{
DebugLevel debugOutputLevel = debugLevelFromName(qgetenv("SINKDEBUGLEVEL"));
if (debugLevel < debugOutputLevel) {
static NullStream stream;
return QDebug(&stream);
}
static DebugStream stream;
QDebug debug(&stream);
static QByteArray programName;
if (programName.isEmpty()) {
if (QCoreApplication::instance())
programName = QCoreApplication::instance()->applicationName().toLocal8Bit();
else
programName = "<unknown program name>";
}
QString prefix;
int prefixColorCode = ANSI_Colors::DoNothing;
switch (debugLevel) {
case DebugLevel::Trace:
prefix = "Trace: ";
break;
case DebugLevel::Log:
prefix = "Log: ";
prefixColorCode = ANSI_Colors::Green;
break;
case DebugLevel::Warning:
prefix = "Warning:";
prefixColorCode = ANSI_Colors::Red;
break;
case DebugLevel::Error:
prefix = "Error: ";
prefixColorCode = ANSI_Colors::Red;
break;
};
bool showLocation = false;
bool showProgram = true;
const QString resetColor = colorCommand(ANSI_Colors::Reset);
QString output;
output += colorCommand(QList<int>() << ANSI_Colors::Bold << prefixColorCode) + prefix + resetColor;
if (showProgram) {
output += QString(" %1(%2)").arg(QString::fromLatin1(programName)).arg(unsigned(getpid()));
}
if (debugArea) {
output += colorCommand(QList<int>() << ANSI_Colors::Bold << prefixColorCode) + QString(" %1 ").arg(QString::fromLatin1(debugArea)) + resetColor;
}
if (showLocation) {
output += QString(" %3").arg(function);
output += QString("%1:%2").arg(file).arg(line);
}
output += ":";
debug << output;
return debug;
}
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