Mercurial > hg > easyhg
view debug.cpp @ 305:7708149d252a
Avoid exception when incremental log is called for in a situation where the heads have not actually been determined yet -- we could end up adding all existing history as an incremental update and getting a duplicate changeset error
author | Chris Cannam |
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date | Sat, 26 Feb 2011 23:04:05 +0000 |
parents | 8fd71f570884 |
children |
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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */ /* EasyMercurial Based on HgExplorer by Jari Korhonen Copyright (c) 2010 Jari Korhonen Copyright (c) 2011 Chris Cannam Copyright (c) 2011 Queen Mary, University of London This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. See the file COPYING included with this distribution for more information. */ #include "debug.h" #include <QString> #include <QUrl> #include <QMutex> #include <QMutexLocker> #include <QFile> #include <QDir> #include <QCoreApplication> #include <QDateTime> #include <cstdio> QDebug & getEasyHgDebug() { static QFile *logFile = 0; static QDebug *debug = 0; static QMutex mutex; static char *prefix; mutex.lock(); if (!debug) { prefix = new char[20]; sprintf(prefix, "[%lu]", (unsigned long)QCoreApplication::applicationPid()); logFile = new QFile(QDir::homePath() + "/.easyhg.log"); if (logFile->open(QIODevice::WriteOnly | QIODevice::Truncate)) { QDebug(QtDebugMsg) << (const char *)prefix << "Opened debug log file " << logFile->fileName(); debug = new QDebug(logFile); } else { QDebug(QtWarningMsg) << (const char *)prefix << "Failed to open debug log file " << logFile->fileName() << " for writing, using console debug instead"; debug = new QDebug(QtDebugMsg); delete logFile; logFile = 0; } *debug << endl << (const char *)prefix << "Log started at " << QDateTime::currentDateTime().toString(); } mutex.unlock(); QDebug &dref = *debug; return dref << endl << (const char *)prefix; } QDebug & operator<<(QDebug &dbg, const std::string &s) { dbg << QString::fromUtf8(s.c_str()); return dbg; } std::ostream & operator<<(std::ostream &target, const QString &str) { return target << str.toLocal8Bit().data(); } std::ostream & operator<<(std::ostream &target, const QUrl &u) { return target << "<" << u.toString() << ">"; }