Fix saving of XML configuration files

... when removing settings

Change-Id: If85061321082a8cd0e35752f71d2498fd4693dfd
Reviewed-by: Daniel Teske <daniel.teske@nokia.com>

src/libs/utils/persistentsettings.cpp

@@ -373,20 +373,12 @@ static void writeVariantValue(QXmlStreamWriter &w, const Context &ctx,
 }
 
 PersistentSettingsWriter::PersistentSettingsWriter(const FileName &fileName, const QString &docType) :
-    m_fileName(fileName), m_docType(docType), m_mustSave(false)
+    m_fileName(fileName), m_docType(docType)
 { }
 
-void PersistentSettingsWriter::saveValue(const QString &variable, const QVariant &value)
+bool PersistentSettingsWriter::save(const QVariantMap &data, QWidget *parent) const
 {
-    if (m_valueMap.contains(variable) && m_valueMap.value(variable) == value)
+    if (data == m_savedData)
-        return;
-    m_mustSave = true;
-    m_valueMap.insert(variable, value);
-}
-
-bool PersistentSettingsWriter::save(QWidget *parent) const
-{
-    if (!m_mustSave)
         return true;
 
     QDir tmp;
@@ -403,8 +395,8 @@ bool PersistentSettingsWriter::save(QWidget *parent) const
                        arg(QLatin1String(Core::Constants::IDE_VERSION_LONG),
                            QDateTime::currentDateTime().toString(Qt::ISODate)));
         w.writeStartElement(ctx.qtCreatorElement);
-        const QVariantMap::const_iterator cend = m_valueMap.constEnd();
+        const QVariantMap::const_iterator cend = data.constEnd();
-        for (QVariantMap::const_iterator it =  m_valueMap.constBegin(); it != cend; ++it) {
+        for (QVariantMap::const_iterator it =  data.constBegin(); it != cend; ++it) {
             w.writeStartElement(ctx.dataElement);
             w.writeTextElement(ctx.variableElement, it.key());
             writeVariantValue(w, ctx, it.value());
@@ -416,7 +408,7 @@ bool PersistentSettingsWriter::save(QWidget *parent) const
     }
     bool ok = saver.finalize(parent);
     if (ok)
-        m_mustSave = false;
+        m_savedData = data;
     return ok;
 }
 

src/libs/utils/persistentsettings.h

@@ -60,16 +60,14 @@ class QTCREATOR_UTILS_EXPORT PersistentSettingsWriter
 {
 public:
     PersistentSettingsWriter(const FileName &fileName, const QString &docType);
-    void saveValue(const QString &variable, const QVariant &value);
+    bool save(const QVariantMap &data, QWidget *parent) const;
-    bool save(QWidget *parent) const;
 
     Utils::FileName fileName() const;
 
 private:
-    QMap<QString, QVariant> m_valueMap;
     const Utils::FileName m_fileName;
     const QString m_docType;
-    mutable bool m_mustSave;
+    mutable QMap<QString, QVariant> m_savedData;
 };
 
 } // namespace Utils

src/plugins/projectexplorer/devicesupport/devicemanager.cpp

@@ -136,8 +136,9 @@ void DeviceManager::copy(const DeviceManager *source, DeviceManager *target, boo
 
 void DeviceManager::save()
 {
-    d->writer->saveValue(QLatin1String(DeviceManagerKey), toMap());
+    QVariantMap data;
-    d->writer->save(Core::ICore::mainWindow());
+    data.insert(QLatin1String(DeviceManagerKey), toMap());
+    d->writer->save(data, Core::ICore::mainWindow());
 }
 
 void DeviceManager::load()

src/plugins/projectexplorer/profilemanager.cpp

@@ -227,20 +227,21 @@ void ProfileManager::saveProfiles()
     if (!d->m_initialized) // ignore save requests while we are not initialized.
         return;
 
-    d->m_writer->saveValue(QLatin1String(PROFILE_FILE_VERSION_KEY), 1);
+    QVariantMap data;
+    data.insert(QLatin1String(PROFILE_FILE_VERSION_KEY), 1);
 
     int count = 0;
     foreach (Profile *p, profiles()) {
         QVariantMap tmp = p->toMap();
         if (tmp.isEmpty())
             continue;
-        d->m_writer->saveValue(QString::fromLatin1(PROFILE_DATA_KEY) + QString::number(count), tmp);
+        data.insert(QString::fromLatin1(PROFILE_DATA_KEY) + QString::number(count), tmp);
         ++count;
     }
-    d->m_writer->saveValue(QLatin1String(PROFILE_COUNT_KEY), count);
+    data.insert(QLatin1String(PROFILE_COUNT_KEY), count);
-    d->m_writer->saveValue(QLatin1String(PROFILE_DEFAULT_KEY),
+    data.insert(QLatin1String(PROFILE_DEFAULT_KEY),
                 d->m_defaultProfile ? QString::fromLatin1(d->m_defaultProfile->id().name()) : QString());
-    d->m_writer->save(Core::ICore::mainWindow());
+    d->m_writer->save(data, Core::ICore::mainWindow());
 }
 
 bool greaterPriority(ProfileInformation *a, ProfileInformation *b)

src/plugins/projectexplorer/session.cpp

@@ -312,9 +312,10 @@ bool SessionManager::save()
                                                        QLatin1String("QtCreatorSession"));
     }
 
+    QVariantMap data;
     // save the startup project
     if (m_startupProject)
-        m_writer->saveValue(QLatin1String("StartupProject"), m_startupProject->document()->fileName());
+        data.insert(QLatin1String("StartupProject"), m_startupProject->document()->fileName());
 
     QStringList projectFiles;
     foreach (Project *pro, m_projects)
@@ -326,7 +327,7 @@ bool SessionManager::save()
         if (!projectFiles.contains(failed))
             projectFiles << failed;
 
-    m_writer->saveValue(QLatin1String("ProjectList"), projectFiles);
+    data.insert(QLatin1String("ProjectList"), projectFiles);
 
     QMap<QString, QVariant> depMap;
     QMap<QString, QStringList>::const_iterator i = m_depMap.constBegin();
@@ -339,7 +340,7 @@ bool SessionManager::save()
         depMap.insert(key, values);
         ++i;
     }
-    m_writer->saveValue(QLatin1String("ProjectDependencies"), QVariant(depMap));
+    data.insert(QLatin1String("ProjectDependencies"), QVariant(depMap));
 
     int editorCount = 0;
     QList<Core::IEditor *> editors = ICore::editorManager()->openedEditors();
@@ -348,21 +349,20 @@ bool SessionManager::save()
         if (!editor->isTemporary())
             ++editorCount;
     }
-    m_writer->saveValue(QLatin1String("OpenEditors"), editorCount);
+    data.insert(QLatin1String("OpenEditors"), editorCount);
-    m_writer->saveValue(QLatin1String("EditorSettings"),
+    data.insert(QLatin1String("EditorSettings"), ICore::editorManager()->saveState().toBase64());
-                        ICore::editorManager()->saveState().toBase64());
 
     QMap<QString, QVariant>::const_iterator it, end;
     end = m_values.constEnd();
     QStringList keys;
     for (it = m_values.constBegin(); it != end; ++it) {
-        m_writer->saveValue(QLatin1String("value-") + it.key(), it.value());
+        data.insert(QLatin1String("value-") + it.key(), it.value());
         keys << it.key();
     }
 
-    m_writer->saveValue(QLatin1String("valueKeys"), keys);
+    data.insert(QLatin1String("valueKeys"), keys);
 
-    bool result = m_writer->save(Core::ICore::mainWindow());
+    bool result = m_writer->save(data, Core::ICore::mainWindow());
     if (!result) {
         QMessageBox::warning(0, tr("Error while saving session"),
                                 tr("Could not save session to file %1").arg(m_writer->fileName().toUserOutput()));

src/plugins/projectexplorer/settingsaccessor.cpp

@@ -936,18 +936,20 @@ bool SettingsAccessor::FileAccessor::writeFile(const SettingsData *settings) con
         m_writer = new Utils::PersistentSettingsWriter(settings->m_fileName, QLatin1String("QtCreatorProject"));
     }
 
+    QVariantMap data;
+
     for (QVariantMap::const_iterator i = settings->m_map.constBegin();
          i != settings->m_map.constEnd();
          ++i) {
-        m_writer->saveValue(i.key(), i.value());
+        data.insert(i.key(), i.value());
     }
 
-    m_writer->saveValue(QLatin1String(VERSION_KEY), m_accessor->m_lastVersion + 1);
+    data.insert(QLatin1String(VERSION_KEY), m_accessor->m_lastVersion + 1);
 
     if (m_environmentSpecific)
-        m_writer->saveValue(QLatin1String(ENVIRONMENT_ID_KEY),
+        data.insert(QLatin1String(ENVIRONMENT_ID_KEY),
                     ProjectExplorerPlugin::instance()->projectExplorerSettings().environmentId.toString());
-    return m_writer->save(Core::ICore::mainWindow());
+    return m_writer->save(data, Core::ICore::mainWindow());
 }
 
 // -------------------------------------------------------------------------

src/plugins/projectexplorer/toolchainmanager.cpp

@@ -209,7 +209,8 @@ ToolChainManager::~ToolChainManager()
 
 void ToolChainManager::saveToolChains()
 {
-    d->m_writer->saveValue(QLatin1String(TOOLCHAIN_FILE_VERSION_KEY), 1);
+    QVariantMap data;
+    data.insert(QLatin1String(TOOLCHAIN_FILE_VERSION_KEY), 1);
 
     int count = 0;
     foreach (ToolChain *tc, d->toolChains()) {
@@ -217,12 +218,12 @@ void ToolChainManager::saveToolChains()
             QVariantMap tmp = tc->toMap();
             if (tmp.isEmpty())
                 continue;
-            d->m_writer->saveValue(QString::fromLatin1(TOOLCHAIN_DATA_KEY) + QString::number(count), tmp);
+            data.insert(QString::fromLatin1(TOOLCHAIN_DATA_KEY) + QString::number(count), tmp);
             ++count;
         }
     }
-    d->m_writer->saveValue(QLatin1String(TOOLCHAIN_COUNT_KEY), count);
+    data.insert(QLatin1String(TOOLCHAIN_COUNT_KEY), count);
-    d->m_writer->save(Core::ICore::mainWindow());
+    d->m_writer->save(data, Core::ICore::mainWindow());
 
     // Do not save default debuggers! Those are set by the SDK!
 }

src/plugins/qtsupport/qtversionmanager.cpp

@@ -364,7 +364,9 @@ void QtVersionManager::saveQtVersions()
     if (!m_writer)
         m_writer = new Utils::PersistentSettingsWriter(settingsFileName(QLatin1String(QTVERSION_FILENAME)),
                                                        QLatin1String("QtCreatorQtVersions"));
-    m_writer->saveValue(QLatin1String(QTVERSION_FILE_VERSION_KEY), 1);
+
+    QVariantMap data;
+    data.insert(QLatin1String(QTVERSION_FILE_VERSION_KEY), 1);
 
     int count = 0;
     foreach (BaseQtVersion *qtv, m_versions) {
@@ -372,11 +374,11 @@ void QtVersionManager::saveQtVersions()
         if (tmp.isEmpty())
             continue;
         tmp.insert(QLatin1String(QTVERSION_TYPE_KEY), qtv->type());
-        m_writer->saveValue(QString::fromLatin1(QTVERSION_DATA_KEY) + QString::number(count), tmp);
+        data.insert(QString::fromLatin1(QTVERSION_DATA_KEY) + QString::number(count), tmp);
         ++count;
 
     }
-    m_writer->save(Core::ICore::mainWindow());
+    m_writer->save(data, Core::ICore::mainWindow());
 }
 
 void QtVersionManager::findSystemQt()

src/plugins/texteditor/codestylepool.cpp

@@ -286,9 +286,11 @@ void CodeStylePool::exportCodeStyle(const Utils::FileName &fileName, ICodeStyleP
 {
     QVariantMap map;
     codeStyle->toMap(QString::null, &map);
+
+    QVariantMap tmp;
+    tmp.insert(QLatin1String(displayNameKey), codeStyle->displayName());
+    tmp.insert(QLatin1String(codeStyleDataKey), map);
     Utils::PersistentSettingsWriter writer(fileName, QLatin1String(codeStyleDocKey));
-    writer.saveValue(QLatin1String(displayNameKey), codeStyle->displayName());
+    writer.save(map, 0);
-    writer.saveValue(QLatin1String(codeStyleDataKey), map);
-    writer.save(0);
 }