Perforce: Modernize

* use pragma once
* remove debug code
* Remove some "slots"
* Use Qt5 style connects (almost everywhere)

Change-Id: Iaa9c3bbacbb2be3c96502c52cc169ad4ec7015a5
Reviewed-by: Orgad Shaneh <orgads@gmail.com>

24 files changed, 113 insertions, 298 deletions

diff --git a/src/plugins/perforce/annotationhighlighter.cpp b/src/plugins/perforce/annotationhighlighter.cpp
index e36d21c0b38..e57f52af46e 100644
--- a/src/plugins/perforce/annotationhighlighter.cpp
+++ b/src/plugins/perforce/annotationhighlighter.cpp
@@ -30,14 +30,12 @@ namespace Internal {
 
 PerforceAnnotationHighlighter::PerforceAnnotationHighlighter(const ChangeNumbers &changeNumbers,
                                                              QTextDocument *document) :
-    VcsBase::BaseAnnotationHighlighter(changeNumbers, document),
-    m_colon(QLatin1Char(':'))
-{
-}
+    VcsBase::BaseAnnotationHighlighter(changeNumbers, document)
+{ }
 
 QString PerforceAnnotationHighlighter::changeNumber(const QString &block) const
 {
-    const int pos = block.indexOf(m_colon);
+    const int pos = block.indexOf(QLatin1Char(':'));
     return pos > 1 ? block.left(pos) : QString();
 }
 
diff --git a/src/plugins/perforce/annotationhighlighter.h b/src/plugins/perforce/annotationhighlighter.h
index 5bd3b989f0f..68d626c274f 100644
--- a/src/plugins/perforce/annotationhighlighter.h
+++ b/src/plugins/perforce/annotationhighlighter.h
@@ -23,8 +23,7 @@
 **
 ****************************************************************************/
 
-#ifndef ANNOTATIONHIGHLIGHTER_H
-#define ANNOTATIONHIGHLIGHTER_H
+#pragma once
 
 #include <vcsbase/baseannotationhighlighter.h>
 
@@ -37,15 +36,11 @@ class PerforceAnnotationHighlighter : public VcsBase::BaseAnnotationHighlighter
     Q_OBJECT
 public:
     explicit PerforceAnnotationHighlighter(const ChangeNumbers &changeNumbers,
-                                           QTextDocument *document = 0);
+                                           QTextDocument *document = nullptr);
 
 private:
-    QString changeNumber(const QString &block) const;
-
-    const QChar m_colon;
+    QString changeNumber(const QString &block) const override;
 };
 
 } // namespace Perforce
 } // namespace Internal
-
-#endif // ANNOTATIONHIGHLIGHTER_H
diff --git a/src/plugins/perforce/changenumberdialog.cpp b/src/plugins/perforce/changenumberdialog.cpp
index 50e2cc87f6e..9978c959339 100644
--- a/src/plugins/perforce/changenumberdialog.cpp
+++ b/src/plugins/perforce/changenumberdialog.cpp
@@ -29,8 +29,7 @@
 
 using namespace Perforce::Internal;
 
-ChangeNumberDialog::ChangeNumberDialog(QWidget *parent)
-    : QDialog(parent)
+ChangeNumberDialog::ChangeNumberDialog(QWidget *parent) : QDialog(parent)
 {
     m_ui.setupUi(this);
     m_ui.numberLineEdit->setValidator(new QIntValidator(0, 1000000, this));
diff --git a/src/plugins/perforce/changenumberdialog.h b/src/plugins/perforce/changenumberdialog.h
index 2e4d3781408..43cef0d8897 100644
--- a/src/plugins/perforce/changenumberdialog.h
+++ b/src/plugins/perforce/changenumberdialog.h
@@ -23,8 +23,7 @@
 **
 ****************************************************************************/
 
-#ifndef CHANGENUMBERDIALOG_H
-#define CHANGENUMBERDIALOG_H
+#pragma once
 
 #include <QDialog>
 
@@ -38,7 +37,7 @@ class ChangeNumberDialog : public QDialog
 {
     Q_OBJECT
 public:
-    ChangeNumberDialog(QWidget *parent = 0);
+    ChangeNumberDialog(QWidget *parent = nullptr);
     int number() const;
 
 private:
@@ -48,5 +47,3 @@ private:
 
 } // namespace Perforce
 } // namespace Internal
-
-#endif // CHANGENUMBERDIALOG_H
diff --git a/src/plugins/perforce/pendingchangesdialog.cpp b/src/plugins/perforce/pendingchangesdialog.cpp
index fcd4539d5a9..e70dc9f4c8e 100644
--- a/src/plugins/perforce/pendingchangesdialog.cpp
+++ b/src/plugins/perforce/pendingchangesdialog.cpp
@@ -30,8 +30,7 @@
 
 using namespace Perforce::Internal;
 
-PendingChangesDialog::PendingChangesDialog(const QString &data, QWidget *parent)
-    : QDialog(parent)
+PendingChangesDialog::PendingChangesDialog(const QString &data, QWidget *parent) : QDialog(parent)
 {
     m_ui.setupUi(this);
     if (!data.isEmpty()) {
diff --git a/src/plugins/perforce/pendingchangesdialog.h b/src/plugins/perforce/pendingchangesdialog.h
index 859d9188491..0fca396c732 100644
--- a/src/plugins/perforce/pendingchangesdialog.h
+++ b/src/plugins/perforce/pendingchangesdialog.h
@@ -23,8 +23,7 @@
 **
 ****************************************************************************/
 
-#ifndef PENDINGCHANGESDIALOG_H
-#define PENDINGCHANGESDIALOG_H
+#pragma once
 
 #include <QDialog>
 
@@ -38,7 +37,7 @@ class PendingChangesDialog : public QDialog
     Q_OBJECT
 
 public:
-    explicit PendingChangesDialog(const QString &data, QWidget *parent = 0);
+    explicit PendingChangesDialog(const QString &data, QWidget *parent = nullptr);
     int changeNumber() const;
 
 private:
@@ -47,6 +46,3 @@ private:
 
 } // namespace Perforce
 } // namespace Internal
-
-#endif // PENDINGCHANGESDIALOG_H
-
diff --git a/src/plugins/perforce/perforce.pro b/src/plugins/perforce/perforce.pro
index 796a0c7a67d..9f7b07f58bd 100644
--- a/src/plugins/perforce/perforce.pro
+++ b/src/plugins/perforce/perforce.pro
@@ -8,7 +8,6 @@ HEADERS += \
     changenumberdialog.h \
     perforcesubmiteditor.h \
     pendingchangesdialog.h \
-    perforceconstants.h \
     perforceversioncontrol.h \
     perforcesettings.h \
     annotationhighlighter.h \
diff --git a/src/plugins/perforce/perforce.qbs b/src/plugins/perforce/perforce.qbs
index 1f5136c65cf..26ca73698d8 100644
--- a/src/plugins/perforce/perforce.qbs
+++ b/src/plugins/perforce/perforce.qbs
@@ -22,7 +22,6 @@ QtcPlugin {
         "perforce.qrc",
         "perforcechecker.cpp",
         "perforcechecker.h",
-        "perforceconstants.h",
         "perforceeditor.cpp",
         "perforceeditor.h",
         "perforceplugin.cpp",
diff --git a/src/plugins/perforce/perforcechecker.cpp b/src/plugins/perforce/perforcechecker.cpp
index b0e0f67449f..7c8c27e780d 100644
--- a/src/plugins/perforce/perforcechecker.cpp
+++ b/src/plugins/perforce/perforcechecker.cpp
@@ -24,7 +24,6 @@
 ****************************************************************************/
 
 #include "perforcechecker.h"
-#include "perforceconstants.h"
 
 #include <utils/qtcassert.h>
 #include <utils/synchronousprocess.h>
@@ -40,12 +39,7 @@
 namespace Perforce {
 namespace Internal {
 
-PerforceChecker::PerforceChecker(QObject *parent) :
-    QObject(parent),
-    m_timeOutMS(-1),
-    m_timedOut(false),
-    m_useOverideCursor(false),
-    m_isOverrideCursor(false)
+PerforceChecker::PerforceChecker(QObject *parent) : QObject(parent)
 {
     connect(&m_process, static_cast<void (QProcess::*)(QProcess::ProcessError)>(&QProcess::error),
             this, &PerforceChecker::slotError);
diff --git a/src/plugins/perforce/perforcechecker.h b/src/plugins/perforce/perforcechecker.h
index 180f8b96b62..b8680959833 100644
--- a/src/plugins/perforce/perforcechecker.h
+++ b/src/plugins/perforce/perforcechecker.h
@@ -23,8 +23,7 @@
 **
 ****************************************************************************/
 
-#ifndef PERFORCECHECKER_H
-#define PERFORCECHECKER_H
+#pragma once
 
 #include <QObject>
 #include <QProcess>
@@ -40,10 +39,9 @@ class PerforceChecker : public QObject
 {
     Q_OBJECT
 public:
-    explicit PerforceChecker(QObject *parent = 0);
+    explicit PerforceChecker(QObject *parent = nullptr);
     ~PerforceChecker();
 
-public slots:
     void start(const QString &binary,
                const QString &workingDirectory,
                const QStringList &basicArgs = QStringList(),
@@ -72,13 +70,11 @@ private:
 
     QProcess m_process;
     QString m_binary;
-    int m_timeOutMS;
-    bool m_timedOut;
-    bool m_useOverideCursor;
-    bool m_isOverrideCursor;
+    int m_timeOutMS = -1;
+    bool m_timedOut = false;
+    bool m_useOverideCursor = false;
+    bool m_isOverrideCursor = false;
 };
 
-}
-}
-
-#endif // PERFORCECHECKER_H
+} // namespace Internal
+} // namespace Perforce
diff --git a/src/plugins/perforce/perforceconstants.h b/src/plugins/perforce/perforceconstants.h
deleted file mode 100644
index e1733673ed0..00000000000
--- a/src/plugins/perforce/perforceconstants.h
+++ /dev/null
@@ -1,39 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of Qt Creator.
-**
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 3 as published by the Free Software
-** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-3.0.html.
-**
-****************************************************************************/
-
-#ifndef PERFORCE_CONSTANTS_H
-#define PERFORCE_CONSTANTS_H
-
-#include <QtGlobal>
-
-namespace Perforce {
-namespace Constants {
-
-enum { debug = 0 };
-
-} // Constants
-} // Perforce
-
-#endif // PERFORCE_CONSTANTS_H
diff --git a/src/plugins/perforce/perforceeditor.cpp b/src/plugins/perforce/perforceeditor.cpp
index f31fec8b5f0..e686d4e427b 100644
--- a/src/plugins/perforce/perforceeditor.cpp
+++ b/src/plugins/perforce/perforceeditor.cpp
@@ -26,7 +26,6 @@
 #include "perforceeditor.h"
 
 #include "annotationhighlighter.h"
-#include "perforceconstants.h"
 #include "perforceplugin.h"
 
 #include <coreplugin/editormanager/editormanager.h>
@@ -85,8 +84,6 @@ QSet<QString> PerforceEditorWidget::annotationChanges() const
             changes.insert(r.cap(1));
         }
     }
-    if (Perforce::Constants::debug)
-        qDebug() << "PerforceEditor::annotationChanges() returns #" << changes.size();
     return changes;
 }
 
diff --git a/src/plugins/perforce/perforceeditor.h b/src/plugins/perforce/perforceeditor.h
index 91896d15033..2a91373aacd 100644
--- a/src/plugins/perforce/perforceeditor.h
+++ b/src/plugins/perforce/perforceeditor.h
@@ -23,8 +23,7 @@
 **
 ****************************************************************************/
 
-#ifndef PERFORCEEDITOR_H
-#define PERFORCEEDITOR_H
+#pragma once
 
 #include <vcsbase/vcsbaseeditor.h>
 
@@ -53,5 +52,3 @@ private:
 
 } // namespace Perforce
 } // namespace Internal
-
-#endif // PERFORCEEDITOR_H
diff --git a/src/plugins/perforce/perforceplugin.cpp b/src/plugins/perforce/perforceplugin.cpp
index 25d5180f231..5696e55760b 100644
--- a/src/plugins/perforce/perforceplugin.cpp
+++ b/src/plugins/perforce/perforceplugin.cpp
@@ -27,7 +27,6 @@
 
 #include "changenumberdialog.h"
 #include "pendingchangesdialog.h"
-#include "perforceconstants.h"
 #include "perforceeditor.h"
 #include "perforcesubmiteditor.h"
 #include "perforceversioncontrol.h"
@@ -115,11 +114,6 @@ static inline const VcsBaseEditorParameters *findType(int ie)
     return VcsBaseEditor::findType(editorParameters, sizeof(editorParameters)/sizeof(editorParameters[0]), et);
 }
 
-static inline QString debugCodec(const QTextCodec *c)
-{
-    return c ? QString::fromLatin1(c->name()) : QString::fromLatin1("Null codec");
-}
-
 // Ensure adding "..." to relative paths which is p4's convention
 // for the current directory
 static inline QString perforceRelativeFileArguments(const QString &args)
@@ -177,37 +171,6 @@ PerforceResponse::PerforceResponse() :
 
 PerforcePlugin *PerforcePlugin::m_instance = NULL;
 
-PerforcePlugin::PerforcePlugin() :
-    m_commandLocator(0),
-    m_editAction(0),
-    m_addAction(0),
-    m_deleteAction(0),
-    m_openedAction(0),
-    m_revertFileAction(0),
-    m_diffFileAction(0),
-    m_diffProjectAction(0),
-    m_updateProjectAction(0),
-    m_revertProjectAction(0),
-    m_revertUnchangedAction(0),
-    m_diffAllAction(0),
-    m_submitProjectAction(0),
-    m_pendingAction(0),
-    m_describeAction(0),
-    m_annotateCurrentAction(0),
-    m_annotateAction(0),
-    m_filelogCurrentAction(0),
-    m_filelogAction(0),
-    m_logProjectAction(0),
-    m_logRepositoryAction(0),
-    m_submitCurrentLogAction(0),
-    m_updateAllAction(0),
-    m_submitActionTriggered(false),
-    m_diffSelectedFiles(0),
-    m_undoAction(0),
-    m_redoAction(0)
-{
-}
-
 static const VcsBaseSubmitEditorParameters submitParameters = {
     SUBMIT_MIMETYPE,
     PERFORCE_SUBMIT_EDITOR_ID,
@@ -890,10 +853,6 @@ bool PerforcePlugin::managesDirectoryFstat(const QString &directory)
         const PerforceResponse result = runP4Cmd(m_settings.topLevel(), args,
                                                  RunFullySynchronous);
 
-        if (Perforce::Constants::debug)
-            qDebug() << "Perforce result:\n" << result.stdOut << "\n---\n" << result.stdErr
-                     << "\n---\n" << result.message;
-
         managed = result.stdOut.contains(QLatin1String("depotFile"))
                   || result.stdErr.contains(QLatin1String("... - no such file(s)"));
     } while (false);
@@ -904,8 +863,6 @@ bool PerforcePlugin::managesDirectoryFstat(const QString &directory)
 
 bool PerforcePlugin::vcsOpen(const QString &workingDir, const QString &fileName, bool silently)
 {
-    if (Perforce::Constants::debug)
-        qDebug() << "PerforcePlugin::vcsOpen" << workingDir << fileName;
     QStringList args;
     args << QLatin1String("edit") << QDir::toNativeSeparators(fileName);
 
@@ -1053,12 +1010,8 @@ PerforceResponse PerforcePlugin::synchronousProcess(const QString &workingDir,
             connect(&process, SIGNAL(stdOutBuffered(QString,bool)), outputWindow, SLOT(append(QString)));
         }
     }
-    if (Perforce::Constants::debug)
-        qDebug() << "PerforcePlugin::run syncp actual args [" << process.workingDirectory() << ']' << args;
     process.setTimeOutMessageBoxEnabled(true);
     const SynchronousProcessResponse sp_resp = process.run(settings().p4BinaryPath(), args);
-    if (Perforce::Constants::debug)
-        qDebug() << sp_resp;
 
     PerforceResponse response;
     response.error = true;
@@ -1100,9 +1053,6 @@ PerforceResponse PerforcePlugin::fullySynchronousProcess(const QString &workingD
     if (!workingDir.isEmpty())
         process.setWorkingDirectory(workingDir);
 
-    if (Perforce::Constants::debug)
-        qDebug() << "PerforcePlugin::run fully syncp actual args [" << process.workingDirectory() << ']' << args;
-
     PerforceResponse response;
     process.start(settings().p4BinaryPath(), args);
     if (stdInput.isEmpty())
@@ -1162,9 +1112,6 @@ PerforceResponse PerforcePlugin::runP4Cmd(const QString &workingDir,
                                           const QByteArray &stdInput,
                                           QTextCodec *outputCodec)
 {
-    if (Perforce::Constants::debug)
-        qDebug() << "PerforcePlugin::runP4Cmd [" << workingDir << ']' << args << extraArgs << stdInput << debugCodec(outputCodec);
-
     if (!settings().isValid()) {
         PerforceResponse invalidConfigResponse;
         invalidConfigResponse.error = true;
@@ -1198,12 +1145,8 @@ PerforceResponse PerforcePlugin::runP4Cmd(const QString &workingDir,
     if (flags & ShowBusyCursor)
         QApplication::restoreOverrideCursor();
 
-    if (response.error) {
-        if (Perforce::Constants::debug)
-            qDebug() << response.message;
-        if (flags & ErrorToWindow)
-            VcsOutputWindow::appendError(response.message);
-    }
+    if (response.error && (flags & ErrorToWindow))
+        VcsOutputWindow::appendError(response.message);
     return response;
 }
 
@@ -1216,12 +1159,9 @@ IEditor *PerforcePlugin::showOutputInEditor(const QString &title,
     const VcsBaseEditorParameters *params = findType(editorType);
     QTC_ASSERT(params, return 0);
     const Id id = params->id;
-    if (Perforce::Constants::debug)
-        qDebug() << "PerforcePlugin::showOutputInEditor" << title << id.name()
-                 <<  "Size= " << output.size() <<  " Type=" << editorType << debugCodec(codec);
     QString s = title;
     QString content = output;
-    const int maxSize = EditorManager::maxTextFileSize() / 2  - 1000; // ~25 MB, 600000 lines
+    const int maxSize = int(EditorManager::maxTextFileSize() / 2  - 1000L); // ~25 MB, 600000 lines
     if (content.size() >= maxSize) {
         content = content.left(maxSize);
         content += QLatin1Char('\n') + tr("[Only %n MB of output shown]", 0, maxSize / 1024 / 1024);
@@ -1230,7 +1170,7 @@ IEditor *PerforcePlugin::showOutputInEditor(const QString &title,
     QTC_ASSERT(editor, return 0);
     connect(editor, SIGNAL(annotateRevisionRequested(QString,QString,QString,int)),
             this, SLOT(vcsAnnotate(QString,QString,QString,int)));
-    PerforceEditorWidget *e = qobject_cast<PerforceEditorWidget*>(editor->widget());
+    auto e = qobject_cast<PerforceEditorWidget*>(editor->widget());
     if (!e)
         return 0;
     e->setForceReadOnly(true);
@@ -1326,12 +1266,12 @@ void PerforcePlugin::p4Diff(const PerforceDiffParameters &p)
                                          VcsBaseEditor::getSource(p.workingDir, p.files),
                                          codec);
     VcsBaseEditor::tagEditor(editor, tag);
-    VcsBaseEditorWidget *diffEditorWidget = qobject_cast<VcsBaseEditorWidget *>(editor->widget());
+    auto diffEditorWidget = qobject_cast<VcsBaseEditorWidget *>(editor->widget());
     // Wire up the parameter widget to trigger a re-run on
     // parameter change and 'revert' from inside the diff editor.
     auto pw = new PerforceDiffParameterWidget(p);
-    connect(pw, SIGNAL(reRunDiff(Perforce::Internal::PerforceDiffParameters)),
-            this, SLOT(p4Diff(Perforce::Internal::PerforceDiffParameters)));
+    connect(pw, &PerforceDiffParameterWidget::reRunDiff,
+            this, [this](const PerforceDiffParameters &p) { p4Diff(p); });
     connect(diffEditorWidget, &VcsBaseEditorWidget::diffChunkReverted,
             pw, &PerforceDiffParameterWidget::triggerReRun);
     diffEditorWidget->setConfigurationWidget(pw);
@@ -1372,7 +1312,7 @@ bool PerforcePlugin::submitEditorAboutToClose()
 {
     if (!isCommitEditorOpen())
         return true;
-    PerforceSubmitEditor *perforceEditor = qobject_cast<PerforceSubmitEditor *>(submitEditor());
+    auto perforceEditor = qobject_cast<PerforceSubmitEditor *>(submitEditor());
     QTC_ASSERT(perforceEditor, return true);
     IDocument *editorDocument = perforceEditor->document();
     QTC_ASSERT(editorDocument, return true);
@@ -1437,10 +1377,7 @@ QString PerforcePlugin::clientFilePath(const QString &serverFilePath)
 
     QRegExp r(QLatin1String("\\.\\.\\.\\sclientFile\\s(.+)\n"));
     r.setMinimal(true);
-    const QString path = r.indexIn(response.stdOut) != -1 ? r.cap(1).trimmed() : QString();
-    if (Perforce::Constants::debug)
-        qDebug() << "clientFilePath" << serverFilePath << path;
-    return path;
+    return r.indexIn(response.stdOut) != -1 ? r.cap(1).trimmed() : QString();
 }
 
 QString PerforcePlugin::pendingChangesData()
@@ -1466,10 +1403,6 @@ QString PerforcePlugin::pendingChangesData()
     return dataResponse.error ? QString() : dataResponse.stdOut;
 }
 
-PerforcePlugin::~PerforcePlugin()
-{
-}
-
 const PerforceSettings& PerforcePlugin::settings()
 {
     return m_instance->m_settings;
@@ -1526,10 +1459,7 @@ QString PerforcePlugin::fileNameFromPerforceName(const QString& perforceName,
         return QString();
     }
     const QString p4fileSpec = output.mid(output.lastIndexOf(QLatin1Char(' ')) + 1);
-    const QString rc = m_instance->m_settings.mapToFileSystem(p4fileSpec);
-    if (Perforce::Constants::debug)
-        qDebug() << "fileNameFromPerforceName" << perforceName << p4fileSpec << rc;
-    return rc;
+    return m_instance->m_settings.mapToFileSystem(p4fileSpec);
 }
 
 PerforceVersionControl *PerforcePlugin::perforceVersionControl()
@@ -1546,15 +1476,11 @@ void PerforcePlugin::setTopLevel(const QString &topLevel)
 
     const QString msg = tr("Perforce repository: %1").arg(QDir::toNativeSeparators(topLevel));
     VcsOutputWindow::appendSilently(msg);
-    if (Perforce::Constants::debug)
-        qDebug() << "P4: " << topLevel;
 }
 
 void PerforcePlugin::slotTopLevelFailed(const QString &errorMessage)
 {
     VcsOutputWindow::appendSilently(tr("Perforce: Unable to determine the repository: %1").arg(errorMessage));
-    if (Perforce::Constants::debug)
-        qDebug() << errorMessage;
 }
 
 void PerforcePlugin::getTopLevel(const QString &workingDirectory, bool isSync)
diff --git a/src/plugins/perforce/perforceplugin.h b/src/plugins/perforce/perforceplugin.h
index 7c105cdc547..616a1f52047 100644
--- a/src/plugins/perforce/perforceplugin.h
+++ b/src/plugins/perforce/perforceplugin.h
@@ -23,8 +23,7 @@
 **
 ****************************************************************************/
 
-#ifndef PERFORCEPLUGIN_H
-#define PERFORCEPLUGIN_H
+#pragma once
 
 #include "perforcesettings.h"
 
@@ -76,8 +75,7 @@ class PerforcePlugin : public VcsBase::VcsBasePlugin
     Q_PLUGIN_METADATA(IID "org.qt-project.Qt.QtCreatorPlugin" FILE "Perforce.json")
 
 public:
-    PerforcePlugin();
-    ~PerforcePlugin();
+    PerforcePlugin() = default;
 
     bool initialize(const QStringList &arguments, QString *errorMessage);
     void extensionsInitialized();
@@ -105,19 +103,19 @@ public slots:
     void describe(const QString &source, const QString &n);
     void vcsAnnotate(const QString &workingDirectory, const QString &file,
                      const QString &revision, int lineNumber);
-    void p4Diff(const Perforce::Internal::PerforceDiffParameters &p);
-
-#ifdef WITH_TESTS
-private slots:
-    void testLogResolving();
-#endif
 
 protected:
     void updateActions(VcsBase::VcsBasePlugin::ActionState);
     bool submitEditorAboutToClose();
 
+#ifdef WITH_TESTS
+private slots:
+    void testLogResolving();
+#endif
 
 private:
+    void p4Diff(const PerforceDiffParameters &p);
+
     void openCurrentFile();
     void addCurrentFile();
     void revertCurrentFile();
@@ -149,8 +147,7 @@ private:
     public:
         DirectoryCacheEntry(bool isManaged, const QString &topLevel):
             m_isManaged(isManaged), m_topLevel(topLevel)
-        {
-        }
+        { }
 
         bool m_isManaged;
         QString m_topLevel;
@@ -216,36 +213,36 @@ private:
 
     static PerforceVersionControl *perforceVersionControl();
 
-    Core::CommandLocator *m_commandLocator;
-    Utils::ParameterAction *m_editAction;
-    Utils::ParameterAction *m_addAction;
-    Utils::ParameterAction *m_deleteAction;
-    QAction *m_openedAction;
-    Utils::ParameterAction *m_revertFileAction;
-    Utils::ParameterAction *m_diffFileAction;
-    Utils::ParameterAction *m_diffProjectAction;
-    Utils::ParameterAction *m_updateProjectAction;
-    Utils::ParameterAction *m_revertProjectAction;
-    Utils::ParameterAction *m_revertUnchangedAction;
-    QAction *m_diffAllAction;
-    Utils::ParameterAction *m_submitProjectAction;
-    QAction *m_pendingAction;
-    QAction *m_describeAction;
-    Utils::ParameterAction *m_annotateCurrentAction;
-    QAction *m_annotateAction;
-    Utils::ParameterAction *m_filelogCurrentAction;
-    QAction *m_filelogAction;
-    Utils::ParameterAction *m_logProjectAction;
-    QAction *m_logRepositoryAction;
-    QAction *m_submitCurrentLogAction;
-    QAction *m_updateAllAction;
-    bool m_submitActionTriggered;
-    QAction *m_diffSelectedFiles;
+    Core::CommandLocator *m_commandLocator = nullptr;
+    Utils::ParameterAction *m_editAction = nullptr;
+    Utils::ParameterAction *m_addAction = nullptr;
+    Utils::ParameterAction *m_deleteAction = nullptr;
+    QAction *m_openedAction = nullptr;
+    Utils::ParameterAction *m_revertFileAction = nullptr;
+    Utils::ParameterAction *m_diffFileAction = nullptr;
+    Utils::ParameterAction *m_diffProjectAction = nullptr;
+    Utils::ParameterAction *m_updateProjectAction = nullptr;
+    Utils::ParameterAction *m_revertProjectAction = nullptr;
+    Utils::ParameterAction *m_revertUnchangedAction = nullptr;
+    QAction *m_diffAllAction = nullptr;
+    Utils::ParameterAction *m_submitProjectAction = nullptr;
+    QAction *m_pendingAction = nullptr;
+    QAction *m_describeAction = nullptr;
+    Utils::ParameterAction *m_annotateCurrentAction = nullptr;
+    QAction *m_annotateAction = nullptr;
+    Utils::ParameterAction *m_filelogCurrentAction = nullptr;
+    QAction *m_filelogAction = nullptr;
+    Utils::ParameterAction *m_logProjectAction = nullptr;
+    QAction *m_logRepositoryAction = nullptr;
+    QAction *m_submitCurrentLogAction = nullptr;
+    QAction *m_updateAllAction = nullptr;
+    bool m_submitActionTriggered = false;
+    QAction *m_diffSelectedFiles = nullptr;
     QString m_commitMessageFileName;
     mutable QString m_tempFilePattern;
-    QAction *m_undoAction;
-    QAction *m_redoAction;
-    QAction *m_menuAction;
+    QAction *m_undoAction = nullptr;
+    QAction *m_redoAction = nullptr;
+    QAction *m_menuAction = nullptr;
 
     static PerforcePlugin *m_instance;
 
@@ -255,5 +252,3 @@ private:
 
 } // namespace Perforce
 } // namespace Internal
-
-#endif // PERFORCEPLUGIN_H
diff --git a/src/plugins/perforce/perforcesettings.cpp b/src/plugins/perforce/perforcesettings.cpp
index 0b7f656655b..116861034e7 100644
--- a/src/plugins/perforce/perforcesettings.cpp
+++ b/src/plugins/perforce/perforcesettings.cpp
@@ -25,13 +25,11 @@
 
 #include "perforcesettings.h"
 #include "perforceplugin.h"
-#include "perforceconstants.h"
 
 #include <utils/qtcassert.h>
 #include <utils/environment.h>
 #include <utils/hostosinfo.h>
 
-#include <QDebug>
 #include <QSettings>
 #include <QStringList>
 #include <QCoreApplication>
@@ -59,14 +57,8 @@ static QString defaultCommand()
 namespace Perforce {
 namespace Internal {
 
-Settings::Settings() :
-    logCount(defaultLogCount),
-    defaultEnv(true),
-    timeOutS(defaultTimeOutS),
-    promptToSubmit(true),
-    autoOpen(true)
-{
-}
+Settings::Settings() : logCount(defaultLogCount), timeOutS(defaultTimeOutS)
+{ }
 
 bool Settings::equals(const Settings &rhs) const
 {
@@ -93,12 +85,9 @@ QStringList Settings::commonP4Arguments() const
 }
 
 // --------------------PerforceSettings
-PerforceSettings::PerforceSettings()
-{
-}
-
 PerforceSettings::~PerforceSettings()
 {
+    delete m_topLevelDir;
 }
 
 void PerforceSettings::fromSettings(QSettings *settings)
@@ -220,21 +209,20 @@ void PerforceSettings::setTopLevel(const QString &t)
         } else {
             m_topLevelSymLinkTarget = m_topLevel = t;
         }
-        m_topLevelDir.reset(new QDir(m_topLevelSymLinkTarget));
-        if (Perforce::Constants::debug)
-            qDebug() << "PerforceSettings::setTopLevel" << m_topLevel << m_topLevelSymLinkTarget;
+        m_topLevelDir =  new QDir(m_topLevelSymLinkTarget);
     }
 }
 
 void PerforceSettings::clearTopLevel()
 {
-    m_topLevelDir.reset();
+    delete m_topLevelDir;
+    m_topLevelDir = nullptr;
     m_topLevel.clear();
 }
 
 QString PerforceSettings::relativeToTopLevel(const QString &dir) const
 {
-    QTC_ASSERT(!m_topLevelDir.isNull(), return QLatin1String("../") + dir);
+    QTC_ASSERT(m_topLevelDir, return QLatin1String("../") + dir);
     return m_topLevelDir->relativeFilePath(dir);
 }
 
diff --git a/src/plugins/perforce/perforcesettings.h b/src/plugins/perforce/perforcesettings.h
index b0a9b4725b7..e782c14c2ff 100644
--- a/src/plugins/perforce/perforcesettings.h
+++ b/src/plugins/perforce/perforcesettings.h
@@ -23,11 +23,9 @@
 **
 ****************************************************************************/
 
-#ifndef PERFORCESETTINGS_H
-#define PERFORCESETTINGS_H
+#pragma once
 
 #include <QString>
-#include <QScopedPointer>
 
 QT_BEGIN_NAMESPACE
 class QSettings;
@@ -55,10 +53,10 @@ struct Settings {
     QString p4User;
     QString errorString;
     int logCount;
-    bool defaultEnv;
+    bool defaultEnv = true;
     int timeOutS;
-    bool promptToSubmit;
-    bool autoOpen;
+    bool promptToSubmit = true;
+    bool autoOpen = true;
 };
 
 inline bool operator==(const Settings &s1, const Settings &s2) { return s1.equals(s2); }
@@ -80,11 +78,10 @@ inline bool operator!=(const Settings &s1, const Settings &s2) { return !s1.equa
 
 class PerforceSettings
 {
-    Q_DISABLE_COPY(PerforceSettings)
-
 public:
-    PerforceSettings();
+    PerforceSettings() = default;
     ~PerforceSettings();
+    PerforceSettings(const PerforceSettings &other) = delete;
 
     inline bool isValid() const
     {
@@ -139,10 +136,8 @@ private:
     Settings m_settings;
     QString m_topLevel;
     QString m_topLevelSymLinkTarget;
-    QScopedPointer<QDir> m_topLevelDir;
+    QDir *m_topLevelDir = nullptr;
 };
 
-} // Internal
-} // Perforce
-
-#endif // PERFORCESETTINGS_H
+} // namespace Internal
+} // namespace Perforce
diff --git a/src/plugins/perforce/perforcesubmiteditor.cpp b/src/plugins/perforce/perforcesubmiteditor.cpp
index e447a7e4809..38b1a04f1ac 100644
--- a/src/plugins/perforce/perforcesubmiteditor.cpp
+++ b/src/plugins/perforce/perforcesubmiteditor.cpp
@@ -26,14 +26,11 @@
 #include "perforcesubmiteditor.h"
 #include "perforcesubmiteditorwidget.h"
 #include "perforceplugin.h"
-#include "perforceconstants.h"
 
 #include <coreplugin/idocument.h>
 #include <vcsbase/submitfilemodel.h>
 #include <utils/qtcassert.h>
 
-#include <QDebug>
-
 namespace Perforce {
 namespace Internal {
 
@@ -62,15 +59,11 @@ QByteArray PerforceSubmitEditor::fileContents() const
         it.next();
         out << it.key() << ":" << it.value();
     }
-    if (Perforce::Constants::debug)
-        qDebug() << Q_FUNC_INFO << text;
     return text.toLocal8Bit();
 }
 
 bool PerforceSubmitEditor::setFileContents(const QByteArray &contents)
 {
-    if (Perforce::Constants::debug)
-        qDebug() << Q_FUNC_INFO << contents;
     if (!parseText(QString::fromUtf8(contents)))
         return false;
     updateFields();
diff --git a/src/plugins/perforce/perforcesubmiteditor.h b/src/plugins/perforce/perforcesubmiteditor.h
index 33b21719034..cff9b05bc71 100644
--- a/src/plugins/perforce/perforcesubmiteditor.h
+++ b/src/plugins/perforce/perforcesubmiteditor.h
@@ -23,8 +23,7 @@
 **
 ****************************************************************************/
 
-#ifndef PERFORCESUBMITEDITOR_H
-#define PERFORCESUBMITEDITOR_H
+#pragma once
 
 #include <vcsbase/vcsbasesubmiteditor.h>
 
@@ -75,5 +74,3 @@ private:
 
 } // namespace Internal
 } // namespace Perforce
-
-#endif // PERFORCESUBMITEDITOR_H
diff --git a/src/plugins/perforce/perforcesubmiteditorwidget.h b/src/plugins/perforce/perforcesubmiteditorwidget.h
index 14ef9f2a194..15b81befe9e 100644
--- a/src/plugins/perforce/perforcesubmiteditorwidget.h
+++ b/src/plugins/perforce/perforcesubmiteditorwidget.h
@@ -23,8 +23,7 @@
 **
 ****************************************************************************/
 
-#ifndef PERFORCESUBMITEDITORWIDGET_H
-#define PERFORCESUBMITEDITORWIDGET_H
+#pragma once
 
 #include "ui_submitpanel.h"
 #include <vcsbase/submiteditorwidget.h>
@@ -48,5 +47,3 @@ private:
 
 } // namespace Internal
 } // namespace Perforce
-
-#endif // PERFORCESUBMITEDITORWIDGET_H
diff --git a/src/plugins/perforce/perforceversioncontrol.cpp b/src/plugins/perforce/perforceversioncontrol.cpp
index fc84372ee7d..d436991b0f0 100644
--- a/src/plugins/perforce/perforceversioncontrol.cpp
+++ b/src/plugins/perforce/perforceversioncontrol.cpp
@@ -25,7 +25,6 @@
 
 #include "perforceversioncontrol.h"
 #include "perforceplugin.h"
-#include "perforceconstants.h"
 #include "perforcesettings.h"
 
 #include <vcsbase/vcsbaseconstants.h>
@@ -38,8 +37,7 @@ namespace Internal {
 
 PerforceVersionControl::PerforceVersionControl(PerforcePlugin *plugin) :
     m_plugin(plugin)
-{
-}
+{ }
 
 QString PerforceVersionControl::displayName() const
 {
@@ -140,14 +138,7 @@ QString PerforceVersionControl::vcsMakeWritableText() const
 
 bool PerforceVersionControl::managesDirectory(const QString &directory, QString *topLevel) const
 {
-    const bool rc = m_plugin->managesDirectory(directory, topLevel);
-    if (Perforce::Constants::debug) {
-        QDebug nsp = qDebug().nospace();
-        nsp << "managesDirectory" << directory << rc;
-        if (topLevel)
-            nsp << topLevel;
-    }
-    return rc;
+    return m_plugin->managesDirectory(directory, topLevel);
 }
 
 bool PerforceVersionControl::managesFile(const QString &workingDirectory, const QString &fileName) const
diff --git a/src/plugins/perforce/perforceversioncontrol.h b/src/plugins/perforce/perforceversioncontrol.h
index 155b514eaed..5ca6c7b20e8 100644
--- a/src/plugins/perforce/perforceversioncontrol.h
+++ b/src/plugins/perforce/perforceversioncontrol.h
@@ -23,8 +23,7 @@
 **
 ****************************************************************************/
 
-#ifndef PERFORCEVERSIONCONTROL_H
-#define PERFORCEVERSIONCONTROL_H
+#pragma once
 
 #include <coreplugin/iversioncontrol.h>
 
@@ -66,7 +65,5 @@ private:
     PerforcePlugin *m_plugin;
 };
 
-} // Internal
-} // Perforce
-
-#endif // PERFORCEVERSIONCONTROL_H
+} // namespace Internal
+} // namespace Perforce
diff --git a/src/plugins/perforce/settingspage.cpp b/src/plugins/perforce/settingspage.cpp
index 3e89ad64014..4a9678901c3 100644
--- a/src/plugins/perforce/settingspage.cpp
+++ b/src/plugins/perforce/settingspage.cpp
@@ -49,13 +49,18 @@ SettingsPageWidget::SettingsPageWidget(QWidget *parent) :
     connect(m_ui.testPushButton, &QPushButton::clicked, this, &SettingsPageWidget::slotTest);
 }
 
+SettingsPageWidget::~SettingsPageWidget()
+{
+    delete m_checker;
+}
+
 void SettingsPageWidget::slotTest()
 {
     if (!m_checker) {
         m_checker = new PerforceChecker(this);
         m_checker->setUseOverideCursor(true);
-        connect(m_checker.data(), &PerforceChecker::failed, this, &SettingsPageWidget::setStatusError);
-        connect(m_checker.data(), &PerforceChecker::succeeded, this, &SettingsPageWidget::testSucceeded);
+        connect(m_checker, &PerforceChecker::failed, this, &SettingsPageWidget::setStatusError);
+        connect(m_checker, &PerforceChecker::succeeded, this, &SettingsPageWidget::testSucceeded);
     }
 
     if (m_checker->isRunning())
@@ -118,6 +123,11 @@ SettingsPage::SettingsPage()
     setDisplayName(tr("Perforce"));
 }
 
+SettingsPage::~SettingsPage()
+{
+    delete m_widget;
+}
+
 QWidget *SettingsPage::widget()
 {
     if (!m_widget) {
@@ -135,4 +145,5 @@ void SettingsPage::apply()
 void SettingsPage::finish()
 {
     delete m_widget;
+    m_widget = nullptr;
 }
diff --git a/src/plugins/perforce/settingspage.h b/src/plugins/perforce/settingspage.h
index 67b8fa35123..4fb6dc903b3 100644
--- a/src/plugins/perforce/settingspage.h
+++ b/src/plugins/perforce/settingspage.h
@@ -23,10 +23,8 @@
 **
 ****************************************************************************/
 
-#ifndef SETTINGSPAGE_H
-#define SETTINGSPAGE_H
+#pragma once
 
-#include <QPointer>
 #include <QWidget>
 
 #include <vcsbase/vcsbaseoptionspage.h>
@@ -46,6 +44,7 @@ class SettingsPageWidget : public QWidget
 
 public:
     explicit SettingsPageWidget(QWidget *parent = 0);
+    ~SettingsPageWidget() override;
 
     void setSettings(const PerforceSettings &);
     Settings settings() const;
@@ -57,7 +56,7 @@ private:
     void testSucceeded(const QString &repo);
 
     Ui::SettingsPage m_ui;
-    QPointer<PerforceChecker> m_checker;
+    PerforceChecker *m_checker = nullptr;
 };
 
 class SettingsPage : public VcsBase::VcsBaseOptionsPage
@@ -66,16 +65,15 @@ class SettingsPage : public VcsBase::VcsBaseOptionsPage
 
 public:
     SettingsPage();
+    ~SettingsPage() override;
 
-    QWidget *widget();
-    void apply();
-    void finish();
+    QWidget *widget() override;
+    void apply() override;
+    void finish() override;
 
 private:
-    QPointer<SettingsPageWidget> m_widget;
+    SettingsPageWidget *m_widget = nullptr;
 };
 
 } // namespace Internal
 } // namespace Perforce
-
-#endif // SETTINGSPAGE_H