Revert "Deploy platformthemes/libqgtk2.so, styles/libqgtk2style.so, iconengines and imageformats (#352)"

This reverts commit aa78a03de0.

tools/linuxdeployqt/shared.cpp

@@ -1217,7 +1217,26 @@ void deployPlugins(const AppDirInfo &appDirInfo, const QString &pluginSourcePath
 
     // Plugin white list:
     QStringList pluginList;
-		
+
+    // Make the bundled application look good on, e.g., Xfce
+    // Note: http://code.qt.io/qt/qtstyleplugins.git must be compiled (using libgtk2.0-dev)
+    // https://askubuntu.com/a/910143
+    // https://askubuntu.com/a/748186
+    // This functionality used to come as part of Qt by default in earlier versions
+    // At runtime, export QT_QPA_PLATFORMTHEME=gtk2 (Xfce does this itself)
+    pluginList.append("platformthemes/libqgtk2.so");
+    pluginList.append("styles/libqgtk2style.so");
+	
+    // Always bundle iconengines,imageformats
+    // https://github.com/probonopd/linuxdeployqt/issues/82
+    // https://github.com/probonopd/linuxdeployqt/issues/325
+    // FIXME
+    // The following does NOT work;
+    // findDependencyInfo: "ldd: /usr/local/Qt-5.9.3/plugins/iconengines: not regular file"
+    // pluginList.append("iconengines");
+    // pluginList.append("imageformats");
+    // TODO: Need to traverse the directories and add each contained plugin individually
+
     LogDebug() << "deploymentInfo.deployedLibraries before attempting to bundle required plugins:" << deploymentInfo.deployedLibraries;
 
     // Platform plugin:
@@ -1238,42 +1257,16 @@ void deployPlugins(const AppDirInfo &appDirInfo, const QString &pluginSourcePath
             pluginList.append(QStringLiteral("platformthemes/") + plugin);
         }
 	*/
-
-        // Make the bundled application look good on, e.g., Xfce
-        // Note: http://code.qt.io/qt/qtstyleplugins.git must be compiled (using libgtk2.0-dev)
-        // https://askubuntu.com/a/910143
-        // https://askubuntu.com/a/748186
-        // This functionality used to come as part of Qt by default in earlier versions
-        // At runtime, export QT_QPA_PLATFORMTHEME=gtk2 (Xfce does this itself)
-        QStringList extraQtPluginsAdded = { "platformthemes/libqgtk2.so", "styles/libqgtk2style.so" };
-        foreach (const QString &plugin, extraQtPluginsAdded) {
-            if (QFile::exists(pluginSourcePath + "/" + plugin)) {
-                pluginList.append(plugin);
-                LogDebug() << plugin << "appended";
+        // All image formats (svg if QtSvg library is used)
+        QStringList imagePlugins = QDir(pluginSourcePath +  QStringLiteral("/imageformats")).entryList(QStringList() << QStringLiteral("*.so"));
+        foreach (const QString &plugin, imagePlugins) {
+            if (plugin.contains(QStringLiteral("qsvg"))) {
+                if (containsHowOften(deploymentInfo.deployedLibraries, "libQt5Svg")) {
+                    pluginList.append(QStringLiteral("imageformats/") + plugin);
+                }
             } else {
-                LogWarning() <<"Plugin" << pluginSourcePath + "/" + plugin << "not found, skipping";
-	    }
+                pluginList.append(QStringLiteral("imageformats/") + plugin);
         }
-	// Always bundle iconengines,imageformats
-        // https://github.com/probonopd/linuxdeployqt/issues/82
-        // https://github.com/probonopd/linuxdeployqt/issues/325
-        // FIXME
-        // The following does NOT work;
-        // findDependencyInfo: "ldd: /usr/local/Qt-5.9.3/plugins/iconengines: not regular file"
-        // pluginList.append("iconengines");
-        // pluginList.append("imageformats");
-        // TODO: Need to traverse the directories and add each contained plugin individually
-        QStringList extraQtPluginDirs = { "iconengines", "imageformats" };
-        foreach (const QString &plugin, extraQtPluginDirs) {
-            QDir pluginDirectory(pluginSourcePath + "/" + plugin);
-            if (pluginDirectory.exists()) {
-                //If it is a plugin directory we will deploy the entire directory
-                QStringList plugins = pluginDirectory.entryList(QStringList() << QStringLiteral("*.so"));
-                foreach (const QString &pluginFile, plugins) {
-                    pluginList.append(plugin + "/" + pluginFile);
-                    LogDebug() << plugin + "/" + pluginFile << "appended";
-                }
-            }
         }
     }