Add isModuleEnabled function

src/libcalamares/Settings.cpp

@@ -269,13 +269,26 @@ Settings::Settings( const QString& settingsFilePath, bool debugMode )
     s_instance = this;
 }
 
+bool
+Settings::isModuleEnabled( QString module )
+{
+    // Iterate over the list of modules searching for a match
+    for ( const auto& moduleInstance : Calamares::Settings::instance()->moduleInstances() )
+    {
+        if ( moduleInstance.key().first == module )
+            return true;
+    }
+
+    return false;
+}
+
 void
 Settings::reconcileInstancesAndSequence()
 {
     // Since moduleFinder captures targetKey by reference, we can
     //   update targetKey to change what the finder lambda looks for.
     Calamares::ModuleSystem::InstanceKey targetKey;
-    auto moduleFinder = [&targetKey]( const InstanceDescription& d ) { return d.isValid() && d.key() == targetKey; };
+    auto moduleFinder = [ &targetKey ]( const InstanceDescription& d ) { return d.isValid() && d.key() == targetKey; };
 
     // Check the sequence against the existing instances (which so far are only custom)
     for ( const auto& step : m_modulesSequence )

src/libcalamares/Settings.h

@@ -152,8 +152,12 @@ public:
      */
     bool isSetupMode() const { return m_isSetupMode; }
 
+    /** @brief Returns true if the named module is enabled */
+    bool isModuleEnabled( QString module );
+
     /** @brief Global setting of disable-cancel: can't cancel ever. */
     bool disableCancel() const { return m_disableCancel; }
+
     /** @brief Temporary setting of disable-cancel: can't cancel during exec. */
     bool disableCancelDuringExec() const { return m_disableCancelDuringExec; }