diff debug.cpp @ 57:f583e44d9d31

* Update copyrights; add debug header

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/debug.cpp	Tue Nov 16 13:57:30 2010 +0000
@@ -0,0 +1,81 @@
+/* -*- 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) 2010 Chris Cannam
+    Copyright (c) 2010 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 <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)getpid());
+        logFile = new QFile(QDir::homePath() + "/.easyhg.log");
+        if (logFile->open(QIODevice::WriteOnly | QIODevice::Append)) {
+            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;
+        }
+    }
+    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() << ">";
+}
+