VcsBase & dependent: Fix const correctness

And some minor cleanups.

Change-Id: Id0c2df6865ba84c054f0fb97c0ac42a76a128355
Reviewed-by: Orgad Shaneh <orgads@gmail.com>

src/plugins/bazaar/bazaarclient.cpp

@@ -164,10 +164,7 @@ FilePath BazaarClient::findTopLevelForFile(const FilePath &file) const
 
 bool BazaarClient::managesFile(const FilePath &workingDirectory, const QString &fileName) const
 {
-    QStringList args(QLatin1String("status"));
+    const CommandResult result = vcsSynchronousExec(workingDirectory, {"status", fileName});
-    args << fileName;
-
-    const CommandResult result = vcsSynchronousExec(workingDirectory, args);
     if (result.result() != ProcessResult::FinishedWithSuccess)
         return false;
     return result.rawStdOut().startsWith("unknown");
@@ -190,7 +187,7 @@ Utils::Id BazaarClient::vcsEditorKind(VcsCommandTag cmd) const
     case LogCommand:
         return Constants::FILELOG_ID;
     default:
-        return Utils::Id();
+        return {};
     }
 }
 

src/plugins/bazaar/bazaarplugin.cpp

@@ -460,8 +460,7 @@ void BazaarPluginPrivate::logCurrentFile()
 {
     const VcsBasePluginState state = currentState();
     QTC_ASSERT(state.hasFile(), return);
-    m_client.log(state.currentFileTopLevel(), QStringList(state.relativeCurrentFile()),
+    m_client.log(state.currentFileTopLevel(), QStringList(state.relativeCurrentFile()), {}, true);
-                  QStringList(), true);
 }
 
 void BazaarPluginPrivate::revertCurrentFile()

src/plugins/clearcase/clearcaseeditor.cpp

@@ -33,7 +33,7 @@ QString ClearCaseEditorWidget::changeUnderCursor(const QTextCursor &c) const
     cursor.select(QTextCursor::BlockUnderCursor);
     if (!cursor.hasSelection())
         return QString();
-    QString change = cursor.selectedText();
+    const QString change = cursor.selectedText();
     // Annotation output has number, log output has revision numbers
     // as r1, r2...
     const QRegularExpressionMatch match = m_versionNumberPattern.match(change);

src/plugins/clearcase/clearcaseplugin.cpp

@@ -892,7 +892,7 @@ void ClearCasePluginPrivate::updateStatusActions()
     FileStatus fileStatus = FileStatus::Unknown;
     bool hasFile = currentState().hasFile();
     if (hasFile) {
-        QString absoluteFileName = currentState().currentFile();
+        const QString absoluteFileName = currentState().currentFile();
         checkAndReIndexUnknownFile(absoluteFileName);
         fileStatus = vcsStatus(absoluteFileName);
 
@@ -1027,7 +1027,7 @@ void ClearCasePluginPrivate::undoCheckOutCurrent()
 {
     const VcsBasePluginState state = currentState();
     QTC_ASSERT(state.hasFile(), return);
-    QString file = state.relativeCurrentFile();
+    const QString file = state.relativeCurrentFile();
     const QString fileName = QDir::toNativeSeparators(file);
 
     QStringList args(QLatin1String("diff"));
@@ -1219,7 +1219,7 @@ void ClearCasePluginPrivate::diffActivity()
         return;
     }
     FilePath topLevel = state.topLevel();
-    QString activity = QInputDialog::getText(ICore::dialogParent(), Tr::tr("Enter Activity"),
+    const QString activity = QInputDialog::getText(ICore::dialogParent(), Tr::tr("Enter Activity"),
                                              Tr::tr("Activity Name"), QLineEdit::Normal, m_activity);
     if (activity.isEmpty())
         return;
@@ -1233,7 +1233,7 @@ void ClearCasePluginPrivate::diffActivity()
         QString shortver = version.mid(topLevelLen + 1);
         int atatpos = shortver.indexOf(QLatin1String("@@"));
         if (atatpos != -1) {
-            QString file = shortver.left(atatpos);
+            const QString file = shortver.left(atatpos);
             // latest version - updated each line
             filever[file].second = shortver;
 
@@ -1251,7 +1251,7 @@ void ClearCasePluginPrivate::diffActivity()
     }
 
     if ((m_settings.diffType == GraphicalDiff) && (filever.count() == 1)) {
-        QStringPair pair(filever.first());
+        const QStringPair pair(filever.first());
         diffGraphical(pair.first, pair.second);
         return;
     }
@@ -1282,8 +1282,7 @@ void ClearCasePluginPrivate::startCheckInCurrentFile()
 {
     const VcsBasePluginState state = currentState();
     QTC_ASSERT(state.hasFile(), return);
-    QString nativeFile = QDir::toNativeSeparators(state.relativeCurrentFile());
+    startCheckIn(state.currentFileTopLevel(), {QDir::toNativeSeparators(state.relativeCurrentFile())});
-    startCheckIn(state.currentFileTopLevel(), QStringList(nativeFile));
 }
 
 void ClearCasePluginPrivate::startCheckInAll()
@@ -1330,7 +1329,7 @@ void ClearCasePluginPrivate::startCheckInActivity()
     for (const QString &version : versions) {
         int atatpos = version.indexOf(QLatin1String("@@"));
         if ((atatpos != -1) && (version.indexOf(QLatin1String("CHECKEDOUT"), atatpos) != -1)) {
-            QString file = version.left(atatpos);
+            const QString file = version.left(atatpos);
             if (file != last)
                 files.append(file.mid(topLevelLen+1));
             last = file;
@@ -1380,10 +1379,8 @@ void ClearCasePluginPrivate::startCheckIn(const FilePath &workingDir, const QStr
     setSubmitEditor(editor);
     editor->setStatusList(files);
 
-    if (m_viewData.isUcm && (files.size() == 1)) {
+    if (m_viewData.isUcm && (files.size() == 1))
-        QString activity = ccGetFileActivity(workingDir, files.first());
+        editor->submitEditorWidget()->setActivity(ccGetFileActivity(workingDir, files.first()));
-        editor->submitEditorWidget()->setActivity(activity);
-    }
 }
 
 void ClearCasePluginPrivate::historyCurrentFile()
@@ -1516,7 +1513,7 @@ void ClearCasePluginPrivate::vcsAnnotateHelper(const FilePath &workingDir, const
     if (lineNumber <= 0)
         lineNumber = VcsBaseEditor::lineNumberOfCurrentEditor(source);
 
-    QString headerSep(QLatin1String("-------------------------------------------------"));
+    const QString headerSep(QLatin1String("-------------------------------------------------"));
     int pos = qMax(0, result.cleanedStdOut().indexOf(headerSep));
     // there are 2 identical headerSep lines - skip them
     int dataStart = result.cleanedStdOut().indexOf(QLatin1Char('\n'), pos) + 1;
@@ -1549,13 +1546,12 @@ void ClearCasePluginPrivate::vcsDescribe(const FilePath &source, const QString &
     if (Constants::debug)
         qDebug() << Q_FUNC_INFO << source << topLevel << changeNr;
     QString description;
-    QString relPath = QDir::toNativeSeparators(QDir(topLevel.toString()).relativeFilePath(source.toString()));
+    const QString relPath = QDir::toNativeSeparators(QDir(topLevel.toString())
-    QString id = QString::fromLatin1("%1@@%2").arg(relPath).arg(changeNr);
+                                                         .relativeFilePath(source.toString()));
+    const QString id = QString::fromLatin1("%1@@%2").arg(relPath).arg(changeNr);
 
-    QStringList args(QLatin1String("describe"));
-    args.push_back(id);
     QTextCodec *codec = VcsBaseEditor::getCodec(source.toString());
-    const CommandResult result = runCleartool(topLevel, args, RunFlags::None, codec);
+    const CommandResult result = runCleartool(topLevel, {"describe", id}, RunFlags::None, codec);
     description = result.cleanedStdOut();
     if (m_settings.extDiffAvailable)
         description += diffExternal(id);
@@ -1655,9 +1651,9 @@ bool ClearCasePluginPrivate::vcsOpen(const FilePath &workingDir, const QString &
     if (Constants::debug)
         qDebug() << Q_FUNC_INFO << workingDir << fileName;
 
-    QFileInfo fi(workingDir.toString(), fileName);
+    const QFileInfo fi(workingDir.toString(), fileName);
-    FilePath topLevel = currentState().topLevel();
+    const FilePath topLevel = currentState().topLevel();
-    QString absPath = fi.absoluteFilePath();
+    const QString absPath = fi.absoluteFilePath();
 
     if (!m_settings.disableIndexer &&
             (fi.isWritable() || vcsStatus(absPath).status == FileStatus::Unknown))
@@ -1809,9 +1805,9 @@ bool ClearCasePluginPrivate::vcsCheckIn(const FilePath &messageFile, const QStri
     bool anySucceeded = false;
     int offset = match.capturedStart();
     while (match.hasMatch()) {
-        QString file = match.captured(1);
+        const QString file = match.captured(1);
-        QFileInfo fi(m_checkInView.toString(), file);
+        const QFileInfo fi(m_checkInView.toString(), file);
-        QString absPath = fi.absoluteFilePath();
+        const QString absPath = fi.absoluteFilePath();
 
         if (!m_settings.disableIndexer)
             setStatus(QDir::fromNativeSeparators(absPath), FileStatus::CheckedIn);
@@ -1856,11 +1852,12 @@ bool ClearCasePluginPrivate::ccFileOp(const FilePath &workingDir, const QString
     if (!fileOpDlg.exec())
         return false;
 
-    QString comment = commentEdit->toPlainText();
+    const QString comment = commentEdit->toPlainText();
     if (m_viewData.isUcm && actSelector->changed())
         vcsSetActivity(workingDir, fileOpDlg.windowTitle(), actSelector->activity());
 
-    QString dirName = QDir::toNativeSeparators(QFileInfo(workingDir.toString(), fileName).absolutePath());
+    const QString dirName = QDir::toNativeSeparators(QFileInfo(workingDir.toString(),
+                                                               fileName).absolutePath());
     QStringList commentArg;
     if (comment.isEmpty())
         commentArg << QLatin1String("-nc");
@@ -1909,7 +1906,7 @@ static QString baseName(const QString &fileName)
 bool ClearCasePluginPrivate::vcsAdd(const FilePath &workingDir, const QString &fileName)
 {
     return ccFileOp(workingDir, Tr::tr("ClearCase Add File %1").arg(baseName(fileName)),
-                    QStringList({"mkelem", "-ci"}), fileName);
+                    {"mkelem", "-ci"}, fileName);
 }
 
 bool ClearCasePluginPrivate::vcsDelete(const FilePath &workingDir, const QString &fileName)
@@ -1920,14 +1917,13 @@ bool ClearCasePluginPrivate::vcsDelete(const FilePath &workingDir, const QString
         return true;
 
     return ccFileOp(workingDir, Tr::tr("ClearCase Remove File %1").arg(baseName(fileName)),
-                    QStringList({"rmname", "-force"}), fileName);
+                    {"rmname", "-force"}, fileName);
 }
 
 bool ClearCasePluginPrivate::vcsMove(const FilePath &workingDir, const QString &from, const QString &to)
 {
     return ccFileOp(workingDir, Tr::tr("ClearCase Rename File %1 -> %2")
-                    .arg(baseName(from)).arg(baseName(to)),
+                    .arg(baseName(from),baseName(to)), {"move"}, from, to);
-                    QStringList("move"), from, to);
 }
 
 ///
@@ -1937,9 +1933,9 @@ bool ClearCasePluginPrivate::managesDirectory(const FilePath &directory, FilePat
 {
 #ifdef WITH_TESTS
     // If running with tests and fake ClearTool is enabled, then pretend we manage every directory
-    QString topLevelFound = m_fakeClearTool ? directory.toString() : findTopLevel(directory);
+    const QString topLevelFound = m_fakeClearTool ? directory.toString() : findTopLevel(directory);
 #else
-    QString topLevelFound = findTopLevel(directory);
+    const QString topLevelFound = findTopLevel(directory);
 #endif
 
     if (topLevel)
@@ -1964,10 +1960,10 @@ QList<QStringPair> ClearCasePluginPrivate::ccGetActivities() const
                              {"lsactivity", "-fmt", "%n\\t%[headline]p\\n"}).cleanedStdOut();
     const QStringList acts = response.split(QLatin1Char('\n'), Qt::SkipEmptyParts);
     for (const QString &activity : acts) {
-        QStringList act = activity.split(QLatin1Char('\t'));
+        const QStringList act = activity.split(QLatin1Char('\t'));
         if (act.size() >= 2)
         {
-            QString actName = act.at(0);
+            const QString actName = act.at(0);
             // include only latest deliver/rebase activities. Activities are sorted
             // by creation time
             if (actName.startsWith(QLatin1String("rebase.")))
@@ -2023,8 +2019,8 @@ bool ClearCasePluginPrivate::newActivity()
     QStringList args;
     args << QLatin1String("mkactivity") << QLatin1String("-f");
     if (!m_settings.autoAssignActivityName) {
-        QString headline = QInputDialog::getText(ICore::dialogParent(), Tr::tr("Activity Headline"),
+        const QString headline = QInputDialog::getText(ICore::dialogParent(),
-                                                 Tr::tr("Enter activity headline"));
+                                 Tr::tr("Activity Headline"), Tr::tr("Enter activity headline"));
         if (headline.isEmpty())
             return false;
         args << QLatin1String("-headline") << headline;
@@ -2049,7 +2045,7 @@ bool ClearCasePluginPrivate::ccCheckUcm(const QString &viewname, const FilePath
 
 bool ClearCasePluginPrivate::managesFile(const FilePath &workingDirectory, const QString &fileName) const
 {
-    QString absFile = QFileInfo(QDir(workingDirectory.toString()), fileName).absoluteFilePath();
+    const QString absFile = QFileInfo(QDir(workingDirectory.toString()), fileName).absoluteFilePath();
     const FileStatus::Status status = getFileStatus(absFile);
     return status != FileStatus::NotManaged && status != FileStatus::Derived;
 }
@@ -2099,8 +2095,8 @@ void ClearCasePluginPrivate::projectChanged(Project *project)
     m_intStream.clear();
     ProgressManager::cancelTasks(ClearCase::Constants::TASK_INDEX);
     if (project) {
-        FilePath projDir = project->projectDirectory();
+        const FilePath projDir = project->projectDirectory();
-        QString topLevel = findTopLevel(projDir);
+        const QString topLevel = findTopLevel(projDir);
         m_topLevel = FilePath::fromString(topLevel);
         if (topLevel.isEmpty())
             return;
@@ -2148,7 +2144,7 @@ QString ClearCasePluginPrivate::getFile(const QString &nativeFile, const QString
     tempDir.mkdir(QLatin1String("ccdiff"));
     tempDir.cd(QLatin1String("ccdiff"));
     int atatpos = nativeFile.indexOf(QLatin1String("@@"));
-    QString file = QDir::fromNativeSeparators(nativeFile.left(atatpos));
+    const QString file = QDir::fromNativeSeparators(nativeFile.left(atatpos));
     if (prefix.isEmpty()) {
         tempFile = tempDir.absoluteFilePath(QString::number(QUuid::createUuid().data1, 16));
     } else {
@@ -2180,7 +2176,7 @@ QString ClearCasePluginPrivate::diffExternal(QString file1, QString file2, bool
 
     // if file2 is empty, we should compare to predecessor
     if (file2.isEmpty()) {
-        QString predVer = ccGetPredecessor(file1);
+        const QString predVer = ccGetPredecessor(file1);
         return (predVer.isEmpty() ? QString() : diffExternal(predVer, file1, keep));
     }
 
@@ -2219,9 +2215,8 @@ QString ClearCasePluginPrivate::diffExternal(QString file1, QString file2, bool
     }
     if (diffResponse.isEmpty())
         return QLatin1String("Files are identical");
-    QString header = QString::fromLatin1("diff %1 old/%2 new/%2\n")
+    const QString header = QString::fromLatin1("diff %1 old/%2 new/%2\n").arg(m_settings.diffArgs,
-            .arg(m_settings.diffArgs)
+                  QDir::fromNativeSeparators(file2.left(file2.indexOf(QLatin1String("@@")))));
-            .arg(QDir::fromNativeSeparators(file2.left(file2.indexOf(QLatin1String("@@")))));
     return header + diffResponse;
 }
 

src/plugins/clearcase/clearcasesettings.cpp

@@ -49,7 +49,8 @@ void ClearCaseSettings::fromSettings(QSettings *settings)
     autoCheckOut = settings->value(QLatin1String(autoCheckOutKeyC), false).toBool();
     noComment = settings->value(QLatin1String(noCommentKeyC), false).toBool();
     keepFileUndoCheckout = settings->value(QLatin1String(keepFileUndoCheckoutKeyC), true).toBool();
-    QString sDiffType = settings->value(QLatin1String(diffTypeKeyC), QLatin1String("Graphical")).toString();
+    const QString sDiffType = settings->value(QLatin1String(diffTypeKeyC),
+                                              QLatin1String("Graphical")).toString();
     switch (sDiffType[0].toUpper().toLatin1()) {
         case 'G': diffType = GraphicalDiff; break;
         case 'E': diffType = ExternalDiff; break;

src/plugins/clearcase/clearcasesync.cpp

@@ -127,16 +127,16 @@ void ClearCaseSync::updateTotalFilesCount(const QString &view, ClearCaseSettings
 void ClearCaseSync::updateStatusForNotManagedFiles(const QStringList &files)
 {
     for (const QString &file : files) {
-       QString absFile = QFileInfo(file).absoluteFilePath();
+        const QString absFile = QFileInfo(file).absoluteFilePath();
-       if (!m_statusMap->contains(absFile))
+        if (!m_statusMap->contains(absFile))
-           ClearCasePlugin::setStatus(absFile, FileStatus::NotManaged, false);
+            ClearCasePlugin::setStatus(absFile, FileStatus::NotManaged, false);
     }
 }
 
 void ClearCaseSync::syncSnapshotView(QFutureInterface<void> &future, QStringList &files,
                                      const ClearCaseSettings &settings)
 {
-    QString view = ClearCasePlugin::viewData().name;
+    const QString view = ClearCasePlugin::viewData().name;
 
     int totalFileCount = files.size();
     const bool hot = (totalFileCount < 10);
@@ -184,7 +184,7 @@ void ClearCaseSync::syncSnapshotView(QFutureInterface<void> &future, QStringList
 
 void ClearCaseSync::processCleartoolLscheckoutLine(const QString &buffer)
 {
-    QString absFile = buffer.trimmed();
+    const QString absFile = buffer.trimmed();
     ClearCasePlugin::setStatus(absFile, FileStatus::CheckedOut, true);
 }
 
@@ -218,7 +218,7 @@ void ClearCaseSync::run(QFutureInterface<void> &future, QStringList &files)
     if (ClearCasePlugin::viewData().isUcm)
         ClearCasePlugin::refreshActivities();
 
-    QString view = ClearCasePlugin::viewData().name;
+    const QString view = ClearCasePlugin::viewData().name;
     if (view.isEmpty())
         emit updateStreamAndView();
 
@@ -294,7 +294,7 @@ void ClearCaseSync::verifyFileCheckedOutDynamicView()
 {
     QCOMPARE(m_statusMap->count(), 0);
 
-    QString fileName("/hello.C");
+    const QString fileName("/hello.C");
     processCleartoolLscheckoutLine(fileName);
 
     QCOMPARE(m_statusMap->count(), 1);
@@ -309,7 +309,7 @@ void ClearCaseSync::verifyFileCheckedInDynamicView()
 {
     QCOMPARE(m_statusMap->count(), 0);
 
-    QString fileName("/hello.C");
+    const QString fileName("/hello.C");
 
     // checked in files are not kept in the index
     QCOMPARE(m_statusMap->count(), 0);

src/plugins/cvs/cvsplugin.cpp

@@ -149,9 +149,8 @@ public:
 
     QStringList arguments() const override
     {
-        QStringList args = m_settings.diffOptions.value().split(' ', Qt::SkipEmptyParts);
+        return m_settings.diffOptions.value().split(' ', Qt::SkipEmptyParts)
-        args += VcsBaseEditorConfig::arguments();
+               + VcsBaseEditorConfig::arguments();
-        return args;
     }
 
 private:

src/plugins/git/branchmodel.cpp

@@ -441,7 +441,7 @@ bool BranchModel::refresh(const FilePath &workingDirectory, QString *errorMessag
 
 void BranchModel::setCurrentBranch()
 {
-    QString currentBranch = d->client->synchronousCurrentLocalBranch(d->workingDirectory);
+    const QString currentBranch = d->client->synchronousCurrentLocalBranch(d->workingDirectory);
     if (currentBranch.isEmpty())
         return;
 
@@ -563,7 +563,7 @@ bool BranchModel::isTag(const QModelIndex &idx) const
 
 void BranchModel::removeBranch(const QModelIndex &idx)
 {
-    QString branch = fullName(idx);
+    const QString branch = fullName(idx);
     if (branch.isEmpty())
         return;
 
@@ -579,7 +579,7 @@ void BranchModel::removeBranch(const QModelIndex &idx)
 
 void BranchModel::removeTag(const QModelIndex &idx)
 {
-    QString tag = fullName(idx);
+    const QString tag = fullName(idx);
     if (tag.isEmpty())
         return;
 
@@ -608,7 +608,7 @@ void BranchModel::checkoutBranch(const QModelIndex &idx, const QObject *context,
 
 bool BranchModel::branchIsMerged(const QModelIndex &idx)
 {
-    QString branch = fullName(idx);
+    const QString branch = fullName(idx);
     if (branch.isEmpty())
         return false;
 
@@ -622,9 +622,9 @@ bool BranchModel::branchIsMerged(const QModelIndex &idx)
 
     const QStringList lines = output.split('\n', Qt::SkipEmptyParts);
     for (const QString &l : lines) {
-        QString currentBranch = l.mid(2); // remove first letters (those are either
+        const QString currentBranch = l.mid(2); // remove first letters (those are either
-                                          // "  " or "* " depending on whether it is
+                                                // "  " or "* " depending on whether it is
-                                          // the currently checked out branch or not)
+                                                // the currently checked out branch or not)
         if (currentBranch != branch)
             return true;
     }
@@ -745,7 +745,7 @@ void BranchModel::Private::parseOutputLine(const QString &line, bool force)
         return;
 
     // objectname, refname, upstream:short, *objectname, committerdate:raw, *committerdate:raw
-    QStringList lineParts = line.split('\t');
+    const QStringList lineParts = line.split('\t');
     const QString shaDeref = lineParts.at(3);
     const QString sha = shaDeref.isEmpty() ? lineParts.at(0) : shaDeref;
     const QString fullName = lineParts.at(1);
@@ -907,9 +907,7 @@ QString BranchModel::toolTip(const QString &sha) const
     // Show the sha description excluding diff as toolTip
     QString output;
     QString errorMessage;
-    QStringList arguments("-n1");
+    if (!d->client->synchronousLog(d->workingDirectory, {"-n1", sha}, &output, &errorMessage,
-    arguments << sha;
-    if (!d->client->synchronousLog(d->workingDirectory, arguments, &output, &errorMessage,
                                    RunFlags::SuppressCommandLogging)) {
         return errorMessage;
     }

src/plugins/git/branchview.cpp

@@ -448,7 +448,7 @@ bool BranchView::remove()
     const QModelIndex selected = selectedIndex();
     QTC_CHECK(selected != m_model->currentBranch());
 
-    QString branchName = m_model->fullName(selected);
+    const QString branchName = m_model->fullName(selected);
     if (branchName.isEmpty())
         return false;
 
@@ -480,7 +480,7 @@ bool BranchView::rename()
     const bool isTag = m_model->isTag(selected);
     QTC_CHECK(m_model->isLocal(selected) || isTag);
 
-    QString oldName = m_model->fullName(selected);
+    const QString oldName = m_model->fullName(selected);
     QStringList localNames;
     if (!isTag)
         localNames = m_model->localBranchNames();

src/plugins/git/gerrit/gerritmodel.cpp

@@ -782,9 +782,8 @@ static bool parseOutput(const QSharedPointer<GerritParameters> &parameters,
     QJsonParseError error;
     const QJsonDocument doc = QJsonDocument::fromJson(adaptedOutput, &error);
     if (doc.isNull()) {
-        QString errorMessage = Git::Tr::tr("Parse error: \"%1\" -> %2")
+        const QString errorMessage = Git::Tr::tr("Parse error: \"%1\" -> %2")
-                .arg(QString::fromUtf8(output))
+                                         .arg(QString::fromUtf8(output), error.errorString());
-                .arg(error.errorString());
         qWarning() << errorMessage;
         VcsOutputWindow::appendError(errorMessage);
         res = false;
@@ -919,9 +918,8 @@ void GerritModel::resultRetrieved(const QByteArray &output)
                 // too-deeply nested items.
                 for (; changeFromItem(parent)->depth >= 1; parent = parent->parent()) {}
                 parent->appendRow(newRow);
-                QString parentFilterString = parent->data(FilterRole).toString();
+                const QString parentFilterString = parent->data(FilterRole).toString() + ' '
-                parentFilterString += ' ';
+                                                   + newRow.first()->data(FilterRole).toString();
-                parentFilterString += newRow.first()->data(FilterRole).toString();
                 parent->setData(QVariant(parentFilterString), FilterRole);
             } else {
                 appendRow(newRow);

src/plugins/git/gerrit/gerritpushdialog.cpp

@@ -86,7 +86,7 @@ void GerritPushDialog::initRemoteBranches()
     QString output;
     const QString head = "/HEAD";
 
-    QString remotesPrefix("refs/remotes/");
+    const QString remotesPrefix("refs/remotes/");
     if (!GitClient::instance()->synchronousForEachRefCmd(
                 m_workingDir, {"--format=%(refname)\t%(committerdate:raw)", remotesPrefix}, &output)) {
         return;
@@ -94,7 +94,7 @@ void GerritPushDialog::initRemoteBranches()
 
     const QStringList refs = output.split("\n");
     for (const QString &reference : refs) {
-        QStringList entries = reference.split('\t');
+        const QStringList entries = reference.split('\t');
         if (entries.count() < 2 || entries.first().endsWith(head))
             continue;
         const QString ref = entries.at(0).mid(remotesPrefix.size());
@@ -194,16 +194,11 @@ QString GerritPushDialog::selectedCommit() const
 
 QString GerritPushDialog::calculateChangeRange(const QString &branch)
 {
-    QString remote = selectedRemoteName();
+    const QString remote = selectedRemoteName() + '/' + selectedRemoteBranchName();
-    remote += '/';
-    remote += selectedRemoteBranchName();
-
     QString number;
     QString error;
-
     GitClient::instance()->synchronousRevListCmd(
                 m_workingDir, { remote + ".." + branch, "--count" }, &number, &error);
-
     number.chop(1);
     return number;
 }
@@ -376,7 +371,7 @@ void GerritPushDialog::updateCommits(int index)
 {
     const QString branch = m_localBranchComboBox->itemText(index);
     m_hasLocalCommits = m_commitView->init(m_workingDir, branch, LogChangeWidget::Silent);
-    QString topic = GitClient::instance()->readConfigValue(
+    const QString topic = GitClient::instance()->readConfigValue(
                 m_workingDir, QString("branch.%1.topic").arg(branch));
     if (!topic.isEmpty())
         m_topicLineEdit->setText(topic);

src/plugins/git/gitclient.cpp

@@ -1194,7 +1194,7 @@ void GitClient::archive(const FilePath &workingDirectory, QString commit)
     FilePath repoDirectory = VcsManager::findTopLevelForDirectory(workingDirectory);
     if (repoDirectory.isEmpty())
         repoDirectory = workingDirectory;
-    QString repoName = repoDirectory.fileName();
+    const QString repoName = repoDirectory.fileName();
 
     QHash<QString, QString> filters;
     QString selectedFilter;
@@ -1222,7 +1222,7 @@ void GitClient::archive(const FilePath &workingDirectory, QString commit)
                 &selectedFilter);
     if (archiveName.isEmpty())
         return;
-    QString extension = filters.value(selectedFilter);
+    const QString extension = filters.value(selectedFilter);
     QFileInfo archive(archiveName.toString());
     if (extension != "." + archive.completeSuffix()) {
         archive = QFileInfo(archive.filePath() + extension);
@@ -1691,7 +1691,7 @@ bool GitClient::synchronousHeadRefs(const FilePath &workingDirectory, QStringLis
 QString GitClient::synchronousTopic(const FilePath &workingDirectory) const
 {
     // First try to find branch
-    QString branch = synchronousCurrentLocalBranch(workingDirectory);
+    const QString branch = synchronousCurrentLocalBranch(workingDirectory);
     if (!branch.isEmpty())
         return branch;
 
@@ -2000,10 +2000,10 @@ SubmoduleDataMap GitClient::submoduleList(const FilePath &workingDirectory) cons
         if (!configLine.startsWith(submoduleLineStart))
             continue;
 
-        int nameStart = submoduleLineStart.size();
+        const int nameStart = submoduleLineStart.size();
-        int nameEnd   = configLine.indexOf('.', nameStart);
+        const int nameEnd   = configLine.indexOf('.', nameStart);
 
-        QString submoduleName = configLine.mid(nameStart, nameEnd - nameStart);
+        const QString submoduleName = configLine.mid(nameStart, nameEnd - nameStart);
 
         SubmoduleData submoduleData;
         if (result.contains(submoduleName))
@@ -2032,7 +2032,7 @@ SubmoduleDataMap GitClient::submoduleList(const FilePath &workingDirectory) cons
             } else {
                 SubmoduleData &submoduleRef = result[submoduleName];
                 submoduleRef.dir = path;
-                QString ignore = gitmodulesFile.value("ignore").toString();
+                const QString ignore = gitmodulesFile.value("ignore").toString();
                 if (!ignore.isEmpty() && submoduleRef.ignore.isEmpty())
                     submoduleRef.ignore = ignore;
             }
@@ -2130,7 +2130,7 @@ bool GitClient::synchronousApplyPatch(const FilePath &workingDirectory,
 Environment GitClient::processEnvironment() const
 {
     Environment environment = VcsBaseClientImpl::processEnvironment();
-    QString gitPath = settings().path.value();
+    const QString gitPath = settings().path.value();
     environment.prependOrSetPath(FilePath::fromUserInput(gitPath));
     if (HostOsInfo::isWindowsHost() && settings().winSetHomeEnvironment.value()) {
         QString homePath;
@@ -2594,7 +2594,7 @@ FilePath GitClient::vcsBinary() const
 
 QTextCodec *GitClient::encoding(const FilePath &workingDirectory, const QString &configVar) const
 {
-    QString codecName = readConfigValue(workingDirectory, configVar).trimmed();
+    const QString codecName = readConfigValue(workingDirectory, configVar).trimmed();
     // Set default commit encoding to 'UTF-8', when it's not set,
     // to solve displaying error of commit log with non-latin characters.
     if (codecName.isEmpty())
@@ -2671,7 +2671,7 @@ bool GitClient::getCommitData(const FilePath &workingDirectory,
 
     commitData.panelInfo.repository = repoDirectory;
 
-    QString gitDir = findGitDirForRepository(repoDirectory);
+    const QString gitDir = findGitDirForRepository(repoDirectory);
     if (gitDir.isEmpty()) {
         *errorMessage = Tr::tr("The repository \"%1\" is not initialized.").arg(repoDirectory.toString());
         return false;
@@ -2818,7 +2818,7 @@ bool GitClient::addAndCommit(const FilePath &repositoryDirectory,
 
     for (int i = 0; i < model->rowCount(); ++i) {
         const FileStates state = static_cast<FileStates>(model->extraData(i).toInt());
-        QString file = model->file(i);
+        const QString file = model->file(i);
         const bool checked = model->checked(i);
 
         if (checked)
@@ -3004,7 +3004,7 @@ void GitClient::revertFiles(const QStringList &files, bool revertStaging)
 
 void GitClient::fetch(const FilePath &workingDirectory, const QString &remote)
 {
-    QStringList const arguments = {"fetch", (remote.isEmpty() ? "--all" : remote)};
+    const QStringList arguments{"fetch", (remote.isEmpty() ? "--all" : remote)};
     const auto commandHandler = [workingDirectory](const CommandResult &result) {
         if (result.result() == ProcessResult::FinishedWithSuccess)
             GitPlugin::updateBranches(workingDirectory);
@@ -3050,7 +3050,7 @@ void GitClient::synchronousAbortCommand(const FilePath &workingDir, const QStrin
     if (abortCommand.isEmpty()) {
         // no abort command - checkout index to clean working copy.
         synchronousCheckoutFiles(VcsManager::findTopLevelForDirectory(workingDir),
-                                 QStringList(), QString(), nullptr, false);
+                                 {}, {}, nullptr, false);
         return;
     }
 
@@ -3064,15 +3064,15 @@ QString GitClient::synchronousTrackingBranch(const FilePath &workingDirectory, c
     QString remote;
     QString localBranch = branch.isEmpty() ? synchronousCurrentLocalBranch(workingDirectory) : branch;
     if (localBranch.isEmpty())
-        return QString();
+        return {};
     localBranch.prepend("branch.");
     remote = readConfigValue(workingDirectory, localBranch + ".remote");
     if (remote.isEmpty())
-        return QString();
+        return {};
     const QString rBranch = readConfigValue(workingDirectory, localBranch + ".merge")
             .replace("refs/heads/", QString());
     if (rBranch.isEmpty())
-        return QString();
+        return {};
     return remote + '/' + rBranch;
 }
 
@@ -3252,7 +3252,7 @@ void GitClient::push(const FilePath &workingDirectory, const QStringList &pushAr
 bool GitClient::synchronousMerge(const FilePath &workingDirectory, const QString &branch,
                                  bool allowFastForward)
 {
-    QString command = "merge";
+    const QString command = "merge";
     QStringList arguments = {command};
     if (!allowFastForward)
         arguments << "--no-ff";

src/plugins/git/gitplugin.cpp

@@ -1634,8 +1634,8 @@ bool GitPluginPrivate::activateCommit()
         return true;
 
     auto model = qobject_cast<SubmitFileModel *>(editor->fileModel());
-    CommitType commitType = editor->commitType();
+    const CommitType commitType = editor->commitType();
-    QString amendSHA1 = editor->amendSHA1();
+    const QString amendSHA1 = editor->amendSHA1();
     if (model->hasCheckedFiles() || !amendSHA1.isEmpty()) {
         // get message & commit
         if (!DocumentManager::saveDocument(editorDocument))

src/plugins/git/gitsubmiteditor.cpp

@@ -245,7 +245,7 @@ GitSubmitEditorPanelData GitSubmitEditor::panelData() const
 
 QString GitSubmitEditor::amendSHA1() const
 {
-    QString commit = submitEditorWidget()->amendSHA1();
+    const QString commit = submitEditorWidget()->amendSHA1();
     return commit.isEmpty() ? m_amendSHA1 : commit;
 }
 

src/plugins/git/logchangedialog.cpp

@@ -125,7 +125,7 @@ void LogChangeWidget::setItemDelegate(QAbstractItemDelegate *delegate)
 void LogChangeWidget::emitCommitActivated(const QModelIndex &index)
 {
     if (index.isValid()) {
-        QString commit = index.sibling(index.row(), Sha1Column).data().toString();
+        const QString commit = index.sibling(index.row(), Sha1Column).data().toString();
         if (!commit.isEmpty())
             emit commitActivated(commit);
     }

src/plugins/mercurial/mercurialclient.cpp

@@ -58,11 +58,9 @@ void MercurialDiffEditorController::runCommand(const QList<QStringList> &args, Q
 
 QStringList MercurialDiffEditorController::addConfigurationArguments(const QStringList &args) const
 {
-    QStringList configArgs{ "-g", "-p" };
+    QStringList configArgs{"-g", "-p", "-U", QString::number(contextLineCount())};
-    configArgs << "-U" << QString::number(contextLineCount());
+    if (ignoreWhitespace())
-    if (ignoreWhitespace()) {
         configArgs << "-w" << "-b" << "-B" << "-Z";
-    }
     return args + configArgs;
 }
 
@@ -103,16 +101,13 @@ bool MercurialClient::synchronousClone(const FilePath &workingDirectory,
 
     if (workingDirectory.exists()) {
         // Let's make first init
-        QStringList arguments(QLatin1String("init"));
+        if (vcsSynchronousExec(workingDirectory, QStringList{"init"}).result()
-        if (vcsSynchronousExec(workingDirectory, arguments).result()
                 != ProcessResult::FinishedWithSuccess) {
             return false;
         }
 
         // Then pull remote repository
-        arguments.clear();
+        if (vcsSynchronousExec(workingDirectory, {"pull", dstLocation}, flags).result()
-        arguments << QLatin1String("pull") << dstLocation;
-        if (vcsSynchronousExec(workingDirectory, arguments, flags).result()
                 != ProcessResult::FinishedWithSuccess) {
             return false;
         }
@@ -127,13 +122,10 @@ bool MercurialClient::synchronousClone(const FilePath &workingDirectory,
         }
 
         // And last update repository
-        arguments.clear();
+        return vcsSynchronousExec(workingDirectory, QStringList{"update"}, flags).result()
-        arguments << QLatin1String("update");
-        return vcsSynchronousExec(workingDirectory, arguments, flags).result()
                 == ProcessResult::FinishedWithSuccess;
     } else {
-        QStringList arguments(QLatin1String("clone"));
+        const QStringList arguments{"clone", dstLocation, workingDirectory.parentDir().toString()};
-        arguments << dstLocation << workingDirectory.parentDir().toString();
         return vcsSynchronousExec(workingDirectory.parentDir(), arguments, flags).result()
                 == ProcessResult::FinishedWithSuccess;
     }
@@ -198,7 +190,7 @@ user: ...
                                         msgParseParentsOutputFailed(result.cleanedStdOut())));
         return {};
     }
-    QStringList changeSets = lines.front().simplified().split(QLatin1Char(' '));
+    const QStringList changeSets = lines.front().simplified().split(QLatin1Char(' '));
     if (changeSets.size() < 2) {
         VcsOutputWindow::appendSilently(msgParentRevisionFailed(workingDirectory, revision,
                                         msgParseParentsOutputFailed(result.cleanedStdOut())));
@@ -206,8 +198,8 @@ user: ...
     }
     // Remove revision numbers
     const QChar colon = QLatin1Char(':');
-    const QStringList::iterator end = changeSets.end();
+    const auto end = changeSets.cend();
-    QStringList::iterator it = changeSets.begin();
+    auto it = changeSets.cbegin();
     for (++it; it != end; ++it) {
         const int colonIndex = it->indexOf(colon);
         if (colonIndex != -1)

src/plugins/mercurial/mercurialplugin.cpp

@@ -365,8 +365,7 @@ void MercurialPluginPrivate::logCurrentFile()
 {
     const VcsBasePluginState state = currentState();
     QTC_ASSERT(state.hasFile(), return);
-    m_client.log(state.currentFileTopLevel(), QStringList(state.relativeCurrentFile()),
+    m_client.log(state.currentFileTopLevel(), QStringList(state.relativeCurrentFile()), {}, true);
-                 QStringList(), true);
 }
 
 void MercurialPluginPrivate::revertCurrentFile()

src/plugins/mercurial/srcdestdialog.cpp

@@ -89,13 +89,13 @@ QString SrcDestDialog::getRepositoryString() const
             if (authDialog->exec()== 0)
                 return repoUrl.toString();
 
-            QString user = authDialog->getUserName();
+            const QString user = authDialog->getUserName();
             if (user.isEmpty())
                 return repoUrl.toString();
             if (user != repoUrl.userName())
                 repoUrl.setUserName(user);
 
-            QString pass = authDialog->getPassword();
+            const QString pass = authDialog->getPassword();
             if (!pass.isEmpty() && pass != repoUrl.password())
                 repoUrl.setPassword(pass);
         }

src/plugins/perforce/perforcechecker.cpp

@@ -118,22 +118,22 @@ void PerforceChecker::slotDone()
 static inline QString findTerm(const QString& in, const QLatin1String& term)
 {
     QRegularExpression regExp(QString("(\\n|\\r\\n|\\r)%1\\s*(.*)(\\n|\\r\\n|\\r)").arg(term));
-    QTC_ASSERT(regExp.isValid(), return QString());
+    QTC_ASSERT(regExp.isValid(), return {});
     QRegularExpressionMatch match = regExp.match(in);
     if (match.hasMatch())
         return match.captured(2).trimmed();
-    return QString();
+    return {};
 }
 
 // Parse p4 client output for the top level
 static inline QString clientRootFromOutput(const QString &in)
 {
-    QString root = findTerm(in, QLatin1String("Root:"));
+    const QString root = findTerm(in, QLatin1String("Root:"));
     if (!root.isNull()) {
         // Normalize slashes and capitalization of Windows drive letters for caching.
         return QFileInfo(root).absoluteFilePath();
     }
-    return QString();
+    return {};
 }
 
 // When p4 port and p4 user is set a preconfigured Root: is given, which doesn't relate with
@@ -141,9 +141,8 @@ static inline QString clientRootFromOutput(const QString &in)
 // invalid case.
 static inline bool clientAndHostAreEqual(const QString &in)
 {
-    QString client = findTerm(in, QLatin1String("Client:"));
+    const QString client = findTerm(in, QLatin1String("Client:"));
-    QString host = findTerm(in, QLatin1String("Host:"));
+    const QString host = findTerm(in, QLatin1String("Host:"));
-
     return client == host;
 }
 

src/plugins/perforce/perforceplugin.cpp

@@ -589,7 +589,7 @@ void PerforcePluginPrivate::revertCurrentFile()
     args << QLatin1String("diff") << QLatin1String("-sa") << state.relativeCurrentFile();
     PerforceResponse result = runP4Cmd(state.currentFileTopLevel(), args,
                                        RunFullySynchronous|CommandToWindow|StdErrToWindow|ErrorToWindow,
-                                       QStringList(), QByteArray(), codec);
+                                       {}, {}, codec);
     if (result.error)
         return;
     // "foo.cpp - file(s) not opened on this client."
@@ -692,9 +692,8 @@ void PerforcePluginPrivate::updateCheckout(const FilePath &workingDir, const QSt
 
 void PerforcePluginPrivate::printOpenedFileList()
 {
-    const PerforceResponse perforceResponse
+    const PerforceResponse perforceResponse = runP4Cmd(m_settings.topLevel(), {"opened"},
-            = runP4Cmd(m_settings.topLevel(), QStringList(QLatin1String("opened")),
+                                              CommandToWindow|StdErrToWindow|ErrorToWindow);
-                       CommandToWindow|StdErrToWindow|ErrorToWindow);
     if (perforceResponse.error || perforceResponse.stdOut.isEmpty())
         return;
     // reformat "//depot/file.cpp#1 - description" into "file.cpp # - description"
@@ -845,7 +844,7 @@ void PerforcePluginPrivate::annotate(const FilePath &workingDir,
         args << (fileName + QLatin1Char('@') + changeList);
     const PerforceResponse result = runP4Cmd(workingDir, args,
                                              CommandToWindow|StdErrToWindow|ErrorToWindow,
-                                             QStringList(), QByteArray(), codec);
+                                             {}, {}, codec);
     if (!result.error) {
         if (lineNumber < 1)
             lineNumber = VcsBaseEditor::lineNumberOfCurrentEditor();
@@ -897,7 +896,7 @@ void PerforcePluginPrivate::filelog(const FilePath &workingDir, const QString &f
         args.append(fileName);
     const PerforceResponse result = runP4Cmd(workingDir, args,
                                              CommandToWindow|StdErrToWindow|ErrorToWindow,
-                                             QStringList(), QByteArray(), codec);
+                                             {}, {}, codec);
     if (!result.error) {
         const QString source = VcsBaseEditor::getSource(workingDir, fileName);
         IEditor *editor = showOutputInEditor(tr("p4 filelog %1").arg(id), result.stdOut,
@@ -919,7 +918,7 @@ void PerforcePluginPrivate::changelists(const FilePath &workingDir, const QStrin
         args.append(fileName);
     const PerforceResponse result = runP4Cmd(workingDir, args,
                                              CommandToWindow|StdErrToWindow|ErrorToWindow,
-                                             QStringList(), QByteArray(), codec);
+                                             {}, {}, codec);
     if (!result.error) {
         const QString source = VcsBaseEditor::getSource(workingDir, fileName);
         IEditor *editor = showOutputInEditor(tr("p4 changelists %1").arg(id), result.stdOut,
@@ -1475,8 +1474,7 @@ void PerforcePluginPrivate::p4Diff(const PerforceDiffParameters &p)
     else
         args.append(p.files);
     const unsigned flags = CommandToWindow|StdErrToWindow|ErrorToWindow|OverrideDiffEnvironment;
-    const PerforceResponse result = runP4Cmd(p.workingDir, args, flags,
+    const PerforceResponse result = runP4Cmd(p.workingDir, args, flags, extraArgs, {}, codec);
-                                             extraArgs, QByteArray(), codec);
     if (result.error)
         return;
 
@@ -1509,7 +1507,7 @@ void PerforcePluginPrivate::vcsDescribe(const FilePath &source, const QString &n
     QStringList args;
     args << QLatin1String("describe") << QLatin1String("-du") << n;
     const PerforceResponse result = runP4Cmd(m_settings.topLevel(), args, CommandToWindow|StdErrToWindow|ErrorToWindow,
-                                             QStringList(), QByteArray(), codec);
+                                             {}, {}, codec);
     if (!result.error)
         showOutputInEditor(tr("p4 describe %1").arg(n), result.stdOut, diffEditorParameters.id, source.toString(), codec);
 }
@@ -1550,7 +1548,7 @@ bool PerforcePluginPrivate::activateCommit()
     submitArgs << QLatin1String("submit") << QLatin1String("-i");
     const PerforceResponse submitResponse = runP4Cmd(m_settings.topLevelSymLinkTarget(), submitArgs,
                                                      LongTimeOut|RunFullySynchronous|CommandToWindow|StdErrToWindow|ErrorToWindow|ShowBusyCursor,
-                                                     QStringList(), reader.data());
+                                                     {}, reader.data());
     if (submitResponse.error) {
         VcsOutputWindow::appendError(tr("p4 submit failed: %1").arg(submitResponse.message));
         return false;

src/plugins/subversion/subversioneditor.cpp

@@ -46,7 +46,7 @@ QString SubversionEditorWidget::changeUnderCursor(const QTextCursor &c) const
     cursor.select(QTextCursor::LineUnderCursor);
     if (!cursor.hasSelection())
         return QString();
-    QString change = cursor.selectedText();
+    const QString change = cursor.selectedText();
     const int pos = c.position() - cursor.selectionStart() + 1;
     // Annotation output has number, log output has revision numbers,
     // both at the start of the line.

src/plugins/subversion/subversionplugin.cpp

@@ -695,16 +695,14 @@ void SubversionPluginPrivate::diffProject()
     QTC_ASSERT(state.hasProject(), return);
     const QString relativeProject = state.relativeCurrentProject();
     m_client->diff(state.currentProjectTopLevel(),
-                   relativeProject.isEmpty() ? QStringList() : QStringList(relativeProject),
+                   relativeProject.isEmpty() ? QStringList() : QStringList(relativeProject), {});
-                   QStringList());
 }
 
 void SubversionPluginPrivate::diffCurrentFile()
 {
     const VcsBasePluginState state = currentState();
     QTC_ASSERT(state.hasFile(), return);
-    m_client->diff(state.currentFileTopLevel(), QStringList(state.relativeCurrentFile()),
+    m_client->diff(state.currentFileTopLevel(), QStringList(state.relativeCurrentFile()), {});
-                   QStringList());
 }
 
 void SubversionPluginPrivate::startCommitCurrentFile()
@@ -1049,8 +1047,8 @@ bool SubversionPluginPrivate::vcsMove(const FilePath &workingDir, const QString
 bool SubversionPluginPrivate::vcsCheckout(const FilePath &directory, const QByteArray &url)
 {
     QUrl tempUrl = QUrl::fromEncoded(url);
-    QString username = tempUrl.userName();
+    const QString username = tempUrl.userName();
-    QString password = tempUrl.password();
+    const QString password = tempUrl.password();
     QStringList args = QStringList(QLatin1String("checkout"));
     args << QLatin1String(Constants::NON_INTERACTIVE_OPTION) ;
 
@@ -1060,7 +1058,7 @@ bool SubversionPluginPrivate::vcsCheckout(const FilePath &directory, const QByte
         // authentication will always fail (if the username and password data are not stored locally),
         // if for example we are logging into a new host for the first time using svn. There seems to
         // be a bug in subversion, so this might get fixed in the future.
-        tempUrl.setUserInfo(QString());
+        tempUrl.setUserInfo({});
         args << QLatin1String("--username") << username;
         if (!password.isEmpty())
             args << QLatin1String("--password") << password;

src/plugins/vcsbase/vcsbaseclient.cpp

@@ -588,9 +588,9 @@ void VcsBaseClient::statusParser(const QString &text)
 {
     QList<VcsBaseClient::StatusItem> lineInfoList;
 
-    QStringList rawStatusList = text.split(QLatin1Char('\n'));
+    const QStringList rawStatusList = text.split(QLatin1Char('\n'));
 
-    for (const QString &string : std::as_const(rawStatusList)) {
+    for (const QString &string : rawStatusList) {
         const VcsBaseClient::StatusItem lineInfo = parseStatusLine(string);
         if (!lineInfo.flags.isEmpty() && !lineInfo.file.isEmpty())
             lineInfoList.append(lineInfo);

src/plugins/vcsbase/vcsbaseeditor.cpp

@@ -1510,7 +1510,7 @@ QString VcsBaseEditorWidget::fileNameFromDiffSpecification(const QTextBlock &inB
         const QString line = block.text();
         const QRegularExpressionMatch match = d->m_diffFilePattern.match(line);
         if (match.hasMatch()) {
-            QString cap = match.captured(1);
+            const QString cap = match.captured(1);
             if (header)
                 header->prepend(line + QLatin1String("\n"));
             if (fileName.isEmpty() && !cap.isEmpty())

src/plugins/vcsbase/vcsoutputwindow.cpp

@@ -125,7 +125,7 @@ QString OutputWindowPlainTextEdit::identifierUnderCursor(const QPoint &widgetPos
     cursor.select(QTextCursor::BlockUnderCursor);
     if (!cursor.hasSelection())
         return QString();
-    QString block = cursor.selectedText();
+    const QString block = cursor.selectedText();
     // Determine cursor position within line and find blank-delimited word
     const int cursorPos = cursorDocumentPos - cursor.block().position();
     const int blockSize = block.size();

src/plugins/vcsbase/wizard/vcscommandpage.cpp

@@ -328,7 +328,7 @@ void VcsCommandPage::delayedInitialize()
         if (!JsonWizard::boolFromVariant(job.condition, wiz->expander()))
             continue;
 
-        QString commandString = wiz->expander()->expand(job.job.at(0));
+        const QString commandString = wiz->expander()->expand(job.job.at(0));
         if (commandString.isEmpty())
             continue;