Stable desktop version check

ChangeLog.md

@@ -4,7 +4,8 @@ Note: This file only contains high level features or important fixes.
 
 ## 3.4
 
-### 3.4.4 - Not yet released
+### 3.4.4
+* Stable desktop versions now inform user at boot if newer version is available.
 * Multi-Vehicle Start Mission and Pause now work correctly. Issue #6864.
 
 ### 3.4.3

src/QGCApplication.cc

@@ -24,6 +24,7 @@
 #include <QStyleFactory>
 #include <QAction>
 #include <QStringListModel>
+#include <QRegularExpression>
 
 #ifdef QGC_ENABLE_BLUETOOTH
 #include <QBluetoothLocalDevice>
@@ -86,6 +87,7 @@
 #include "EditPositionDialogController.h"
 #include "FactValueSliderListModel.h"
 #include "KMLFileHelper.h"
+#include "QGCFileDownload.h"
 
 #ifndef NO_SERIAL_LINK
 #include "SerialLink.h"
@@ -149,7 +151,7 @@ static QObject* kmlFileHelperSingletonFactory(QQmlEngine*, QJSEngine*)
 QGCApplication::QGCApplication(int &argc, char* argv[], bool unitTesting)
 #ifdef __mobile__
     : QGuiApplication           (argc, argv)
-    , _qmlAppEngine         (NULL)
+    , _qmlAppEngine             (nullptr)
 #else
     : QApplication              (argc, argv)
 #endif
@@ -157,10 +159,14 @@ QGCApplication::QGCApplication(int &argc, char* argv[], bool unitTesting)
     , _logOutput                (false)
     , _fakeMobile               (false)
     , _settingsUpgraded         (false)
+    , _majorVersion             (0)
+    , _minorVersion             (0)
+    , _buildVersion             (0)
+    , _currentVersionDownload   (nullptr)
 #ifdef QT_DEBUG
     , _testHighDPI              (false)
 #endif
-    , _toolbox              (NULL)
+    , _toolbox                  (nullptr)
     , _bluetoothAvailable       (false)
 {
     _app = this;
@@ -322,6 +328,8 @@ QGCApplication::QGCApplication(int &argc, char* argv[], bool unitTesting)
 
     _toolbox = new QGCToolbox(this);
     _toolbox->setChildToolboxes();
+
+    _checkForNewVersion();
 }
 
 void QGCApplication::_shutdown(void)
@@ -692,3 +700,64 @@ bool QGCApplication::isInternetAvailable()
 {
     return getQGCMapEngine()->isInternetActive();
 }
+
+void QGCApplication::_checkForNewVersion(void)
+{
+#ifndef __mobile__
+    if (!_runningUnitTests) {
+        if (_parseVersionText(applicationVersion(), _majorVersion, _minorVersion, _buildVersion)) {
+            QString versionCheckFile = toolbox()->corePlugin()->stableVersionCheckFileUrl();
+            if (!versionCheckFile.isEmpty()) {
+                _currentVersionDownload = new QGCFileDownload(this);
+                connect(_currentVersionDownload, &QGCFileDownload::downloadFinished, this, &QGCApplication::_currentVersionDownloadFinished);
+                connect(_currentVersionDownload, &QGCFileDownload::error, this, &QGCApplication::_currentVersionDownloadError);
+                _currentVersionDownload->download(versionCheckFile);
+            }
+        }
+    }
+#endif
+}
+
+void QGCApplication::_currentVersionDownloadFinished(QString remoteFile, QString localFile)
+{
+    Q_UNUSED(remoteFile);
+
+    QFile versionFile(localFile);
+    if (versionFile.open(QIODevice::ReadOnly)) {
+        QTextStream textStream(&versionFile);
+        QString version = textStream.readLine();
+
+        qDebug() << version;
+
+        int majorVersion, minorVersion, buildVersion;
+        if (_parseVersionText(version, majorVersion, minorVersion, buildVersion)) {
+            if (_majorVersion < majorVersion ||
+                    (_majorVersion == majorVersion && _minorVersion < minorVersion) ||
+                    (_majorVersion == majorVersion && _minorVersion == minorVersion && _buildVersion < buildVersion)) {
+                QGCMessageBox::information(tr("New Version Available"), tr("There is a newer version of %1 available. You can download it from %2.").arg(applicationName()).arg(toolbox()->corePlugin()->stableDownloadLocation()));
+            }
+        }
+    }
+
+    _currentVersionDownload->deleteLater();
+}
+
+void QGCApplication::_currentVersionDownloadError(QString errorMsg)
+{
+    Q_UNUSED(errorMsg);
+    _currentVersionDownload->deleteLater();
+}
+
+bool QGCApplication::_parseVersionText(const QString& versionString, int& majorVersion, int& minorVersion, int& buildVersion)
+{
+    QRegularExpression regExp("v(\\d+)\\.(\\d+)\\.(\\d+)");
+    QRegularExpressionMatch match = regExp.match(versionString);
+    if (match.hasMatch() && match.lastCapturedIndex() == 3) {
+        majorVersion = match.captured(1).toInt();
+        minorVersion = match.captured(2).toInt();
+        buildVersion = match.captured(3).toInt();
+        return true;
+    }
+
+    return false;
+}

src/QGCApplication.h

@@ -42,6 +42,7 @@
 class QGCSingleton;
 class MainWindow;
 class QGCToolbox;
+class QGCFileDownload;
 
 /**
  * @brief The main application and management class.
@@ -152,9 +153,13 @@ public:
 
 private slots:
     void _missingParamsDisplay(void);
+    void _currentVersionDownloadFinished(QString remoteFile, QString localFile);
+    void _currentVersionDownloadError(QString errorMsg);
+    bool _parseVersionText(const QString& versionString, int& majorVersion, int& minorVersion, int& buildVersion);
 
 private:
     QObject* _rootQmlObject(void);
+    void _checkForNewVersion(void);
 
 #ifdef __mobile__
     QQmlApplicationEngine* _qmlAppEngine;
@@ -170,6 +175,10 @@ private:
     QStringList         _missingParams;                                     ///< List of missing facts to be displayed
     bool				_fakeMobile;                                        ///< true: Fake ui into displaying mobile interface
     bool                _settingsUpgraded;                                  ///< true: Settings format has been upgrade to new version
+    int                 _majorVersion;
+    int                 _minorVersion;
+    int                 _buildVersion;
+    QGCFileDownload*    _currentVersionDownload;
 
 #ifdef QT_DEBUG
     bool _testHighDPI;  ///< true: double fonts sizes for simulating high dpi devices

src/api/QGCCorePlugin.h

@@ -112,6 +112,17 @@ public:
     /// should derive from QmlComponentInfo and set the url property.
     virtual QmlObjectListModel* customMapItems(void);
 
+    /// Returns the url to download the stable version check file. Return QString() to indicate no version check should be performed.
+    /// Default implemenentation returns QGC Stable file location. Custom builds must override to turn off or provide their own location.
+    /// The contents of this file should be a single line in the form:
+    ///     v3.4.4
+    /// This indicates the latest stable version number.
+    virtual QString stableVersionCheckFileUrl(void) { return QString("https://s3-us-west-2.amazonaws.com/qgroundcontrol/latest/QGC.version.txt"); }
+
+    /// Returns the user visible url to show user where to download new stable builds from.
+    /// Custom builds must override to provide their own location.
+    virtual QString stableDownloadLocation(void) { return QString("qgroundcontrol.com"); }
+
     bool showTouchAreas(void) const { return _showTouchAreas; }
     bool showAdvancedUI(void) const { return _showAdvancedUI; }
     void setShowTouchAreas(bool show);