RF: Handle cases where in/out/bm dirs are not set

pyfeeds/main.py

@@ -234,12 +234,15 @@ class Pyfeeds:
 
         # Do not consider anything within the
         # input, benchmark, or output directories
-        indir    = pl.Path(op.abspath(self.inputDir))
-        bmdir    = pl.Path(op.abspath(self.benchmarkDir))
-        outdir   = pl.Path(op.abspath(self.outputDir))
-        testDirs = [td for td in testDirs if indir  not in pl.Path(td).parents]
-        testDirs = [td for td in testDirs if bmdir  not in pl.Path(td).parents]
-        testDirs = [td for td in testDirs if outdir not in pl.Path(td).parents]
+        def filterOut(dirs, filterDir):
+            if filterDir is None:
+                return
+            fdir = pl.Path(op.abspath(filterDir))
+            return [td for td in dirs if pdir not in pl.Path(td).parents]
+
+        testDirs = filterOut(testDirs, self.outputDir)
+        testDirs = filterOut(testDirs, self.benchmarkDir)
+        testDirs = filterOut(testDirs, self.inputDir)
 
         # Find the deepest directory in
         # the file system which contains