Terminal: use shell name as terminal tab name

This way cmd, bash, powershell are more descriptive than "Terminal"

Change-Id: I19310f423cd4188ecc48580a30ed414833a15aee
Reviewed-by: Marcus Tillmanns <marcus.tillmanns@qt.io>

src/plugins/terminal/terminalpane.cpp

@@ -74,8 +74,9 @@ TerminalPane::TerminalPane(QObject *parent)
 void TerminalPane::openTerminal(const Utils::Terminal::OpenTerminalParameters &parameters)
 {
     showPage(0);
-    m_tabWidget->setCurrentIndex(
-        m_tabWidget->addTab(new TerminalWidget(m_tabWidget, parameters), Tr::tr("Terminal")));
+    auto terminalWidget = new TerminalWidget(m_tabWidget, parameters);
+    m_tabWidget->setCurrentIndex(m_tabWidget->addTab(terminalWidget, Tr::tr("Terminal")));
+    setupTerminalWidget(terminalWidget);
 
     m_tabWidget->currentWidget()->setFocus();
 
@@ -87,6 +88,7 @@ void TerminalPane::addTerminal(TerminalWidget *terminal, const QString &title)
 {
     showPage(0);
     m_tabWidget->setCurrentIndex(m_tabWidget->addTab(terminal, title));
+    setupTerminalWidget(terminal);
 
     m_closeTerminal.setEnabled(m_tabWidget->count() > 1);
     emit navigateStateUpdate();
@@ -106,7 +108,10 @@ QWidget *TerminalPane::outputWidget(QWidget *parent)
             removeTab(index);
         });
 
-        m_tabWidget->addTab(new TerminalWidget(parent), Tr::tr("Terminal"));
+        auto terminalWidget = new TerminalWidget(parent);
+        m_tabWidget->addTab(terminalWidget, Tr::tr("Terminal"));
+        setupTerminalWidget(terminalWidget);
+
     }
 
     return m_tabWidget;
@@ -127,6 +132,24 @@ void TerminalPane::removeTab(int index)
     emit navigateStateUpdate();
 }
 
+void TerminalPane::setupTerminalWidget(TerminalWidget *terminal)
+{
+    if (!terminal)
+        return;
+
+    auto setTabText = [this](TerminalWidget * terminal) {
+        auto index = m_tabWidget->indexOf(terminal);
+        m_tabWidget->setTabText(index, terminal->shellName());
+    };
+
+    connect(terminal, &TerminalWidget::started, [setTabText, terminal](qint64 /*pid*/) {
+        setTabText(terminal);
+    });
+
+    if (!terminal->shellName().isEmpty())
+        setTabText(terminal);
+}
+
 QList<QWidget *> TerminalPane::toolBarWidgets() const
 {
     return {m_newTerminalButton, m_closeTerminalButton};

src/plugins/terminal/terminalpane.h

@@ -43,6 +43,7 @@ private:
     TerminalWidget *currentTerminal() const;
 
     void removeTab(int index);
+    void setupTerminalWidget(TerminalWidget *terminal);
 
 private:
     QTabWidget *m_tabWidget{nullptr};

src/plugins/terminal/terminalwidget.cpp

@@ -162,6 +162,10 @@ void TerminalWidget::setupPty()
     });
 
     connect(m_process.get(), &QtcProcess::started, this, [this] {
+        m_shellName = m_process->commandLine().executable().fileName();
+        if (HostOsInfo::isWindowsHost() && m_shellName.endsWith(QTC_WIN_EXE_SUFFIX))
+            m_shellName.chop(QStringLiteral(QTC_WIN_EXE_SUFFIX).size());
+
         applySizeChange();
         emit started(m_process->processId());
     });
@@ -463,6 +467,11 @@ void TerminalWidget::setSelection(const std::optional<Selection> &selection)
     m_selection = selection;
 }
 
+QString TerminalWidget::shellName() const
+{
+    return m_shellName;
+}
+
 const VTermScreenCell *TerminalWidget::fetchCell(int x, int y) const
 {
     QTC_ASSERT(y >= 0, return nullptr);

src/plugins/terminal/terminalwidget.h

@@ -52,6 +52,8 @@ public:
         QPoint end;
     };
 
+    QString shellName() const;
+
 signals:
     void started(qint64 pid);
 
@@ -119,6 +121,8 @@ protected:
 private:
     std::unique_ptr<Utils::QtcProcess> m_process;
 
+    QString m_shellName;
+
     std::unique_ptr<VTerm, void (*)(VTerm *)> m_vterm;
     VTermScreen *m_vtermScreen;
     QSize m_vtermSize;