Option of using curent working dir if default save not provided

Refs #16248

Framework/PythonInterface/plugins/algorithms/WorkflowAlgorithms/Quest.py

@@ -81,6 +81,10 @@ class Quest(PythonAlgorithm):
         saveOp = self.getProperty('Save').value
 
         workdir = config['defaultsave.directory']
+        if not os.path.isdir(workdir):
+            workdir = os.getcwd()
+            logger.information('Default Save directory is not set. Defaulting to current working Directory: ' + workdir)
+
         if inType == 'File':
             spath = os.path.join(workdir, sname+'.nxs')        # path name for sample nxs file
             LoadNexusProcessed(Filename=spath, OutputWorkspace=sname)

MantidQt/CustomInterfaces/src/Indirect/Stretch.cpp

@@ -83,6 +83,23 @@ bool Stretch::validate() {
 void Stretch::run() {
   using namespace Mantid::API;
 
+  auto saveDirectory = Mantid::Kernel::ConfigService::Instance().getString(
+      "defaultsave.directory");
+  if (saveDirectory.compare("") == 0) {
+    const char *textMessage =
+        "BayesStretch requires a default save directory and "
+        "one is not currently set."
+        " If run, the algorithm will default to saving files "
+        "to the current working directory."
+        " Would you still like to run the algorithm?";
+    int result = QMessageBox::question(NULL, tr("Save Directory"),
+                                       tr(textMessage), QMessageBox::Yes,
+                                       QMessageBox::No, QMessageBox::NoButton);
+    if (result == QMessageBox::No) {
+      return;
+    }
+  }
+
   QString save("False");
 
   QString elasticPeak("False");

scripts/Inelastic/IndirectBayes.py

@@ -506,7 +506,10 @@ def QuestRun(samWS,resWS,nbs,erange,nbins,Fit,Loop,Plot,Save):
 
     fitOp = [o_el, o_bgd, o_w1, o_res]
 
-    workdir = getDefaultWorkingDirectory()
+    workdir = config['defaultsave.directory']
+    if not os.path.isdir(workdir):
+        workdir = os.getcwd()
+        logger.information('Default Save directory is not set. Defaulting to current working Directory: ' + workdir)
 
     array_len = 4096                           # length of array in Fortran
     CheckXrange(erange,'Energy')