Mercurial > hg > easyhg
view src/versiontester.cpp @ 654:0693e1548d86
Add updated PyQt
author | Chris Cannam <chris.cannam@eecs.qmul.ac.uk> |
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date | Fri, 25 Jan 2013 14:55:38 +0000 |
parents | ae67ea0af696 |
children | f9b805d8cab4 |
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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) 2013 Chris Cannam Copyright (c) 2013 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 "versiontester.h" #include "debug.h" #include <iostream> #include <QHttp> VersionTester::VersionTester(QString hostname, QString versionFilePath, QString myVersion) : m_httpFailed(false), m_myVersion(myVersion) { QHttp *http = new QHttp(); connect(http, SIGNAL(responseHeaderReceived(const QHttpResponseHeader &)), this, SLOT(httpResponseHeaderReceived(const QHttpResponseHeader &))); connect(http, SIGNAL(done(bool)), this, SLOT(httpDone(bool))); http->setHost(hostname); http->get(versionFilePath); } VersionTester::~VersionTester() { } bool VersionTester::isVersionNewerThan(QString a, QString b) { QRegExp re("[._-]"); QStringList alist = a.split(re, QString::SkipEmptyParts); QStringList blist = b.split(re, QString::SkipEmptyParts); int ae = alist.size(); int be = blist.size(); int e = std::max(ae, be); for (int i = 0; i < e; ++i) { int an = 0, bn = 0; if (i < ae) { an = alist[i].toInt(); if (an == 0) an = -1; // non-numeric field -> "-pre1" etc } if (i < be) { bn = blist[i].toInt(); if (bn == 0) bn = -1; } if (an < bn) return false; if (an > bn) return true; } return false; } void VersionTester::httpResponseHeaderReceived(const QHttpResponseHeader &h) { if (h.statusCode() / 100 != 2) m_httpFailed = true; } void VersionTester::httpDone(bool error) { QHttp *http = const_cast<QHttp *>(dynamic_cast<const QHttp *>(sender())); if (!http) return; http->deleteLater(); if (error || m_httpFailed) return; QByteArray responseData = http->readAll(); QString str = QString::fromUtf8(responseData.data()); QStringList lines = str.split('\n', QString::SkipEmptyParts); if (lines.empty()) return; QString latestVersion = lines[0]; DEBUG << "Comparing current version \"" << m_myVersion << "\" with latest version \"" << latestVersion << "\"" << endl; if (isVersionNewerThan(latestVersion, m_myVersion)) { emit newerVersionAvailable(latestVersion); } }