Added settings override

Author: Stefterv

app/src/processing/app/Base.java

@@ -2221,7 +2221,10 @@ static public File getSettingsFolder() {
 
     try {
       settingsFolder = Platform.getSettingsFolder();
-
+        var settingsOverride = System.getProperty("processing.settings.folder");
+        if (settingsOverride != null && !settingsOverride.isEmpty()) {
+            settingsFolder = new File(settingsOverride);
+        }
       // create the folder if it doesn't exist already
       if (!settingsFolder.exists()) {
         if (!settingsFolder.mkdirs()) {

app/test/processing/app/SketchbookTest.kt

@@ -13,9 +13,13 @@ class SketchbookTest {
     @Test
     fun sketchbookIsOverridableTest() {
         val directory = createTempDirectory("scaffolding")
+        val preferences = directory.resolve("preferences")
+        preferences.toFile().mkdirs()
         val sketchbook = directory.resolve("sketchbook")
         sketchbook.toFile().mkdirs()
+
         System.setProperty("processing.sketchbook.folder", sketchbook.toAbsolutePath().toString())
+        System.setProperty("processing.settings.folder", preferences.toAbsolutePath().toString())
 
         val result = Base.getSketchbookFolder()
         assert(result.absolutePath == sketchbook.toAbsolutePath().toString())