VcsBase: Add a button to reset VCS information cache

Task-number: QTCREATORBUG-14454
Change-Id: I958f58b8b19a8a9453e869daaf0a25ccf6fe57b3
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@theqtcompany.com>
Reviewed-by: Orgad Shaneh <orgads@gmail.com>

src/plugins/vcsbase/commonsettingspage.cpp

@@ -65,6 +65,8 @@ CommonSettingsWidget::CommonSettingsWidget(QWidget *parent) :
 
     connect(Core::VcsManager::instance(), &Core::VcsManager::configurationChanged,
             this, &CommonSettingsWidget::updatePath);
+    connect(m_ui->cacheResetButton, &QPushButton::clicked,
+            this, [] { Core::VcsManager::clearVersionControlCache(); });
 }
 
 CommonSettingsWidget::~CommonSettingsWidget()

src/plugins/vcsbase/commonsettingspage.ui

@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>322</width>
+    <width>350</width>
-    <height>180</height>
+    <height>212</height>
    </rect>
   </property>
   <layout class="QFormLayout" name="formLayout">
@@ -119,6 +119,32 @@ should a repository require SSH-authentication (see documentation on SSH and the
    <item row="5" column="1">
     <widget class="Utils::PathChooser" name="sshPromptChooser" native="true"/>
    </item>
+   <item row="6" column="0">
+    <spacer name="verticalSpacer">
+     <property name="orientation">
+      <enum>Qt::Vertical</enum>
+     </property>
+     <property name="sizeType">
+      <enum>QSizePolicy::Fixed</enum>
+     </property>
+     <property name="sizeHint" stdset="0">
+      <size>
+       <width>20</width>
+       <height>20</height>
+      </size>
+     </property>
+    </spacer>
+   </item>
+   <item row="7" column="1">
+    <widget class="QPushButton" name="cacheResetButton">
+     <property name="toolTip">
+      <string>Reset information about which version control system handles which directory.</string>
+     </property>
+     <property name="text">
+      <string>Reset VCS Cache</string>
+     </property>
+    </widget>
+   </item>
   </layout>
  </widget>
  <customwidgets>