Filter common parent for PATH and custom sources

Author: VictoriousRaptor

Plugins/Flow.Launcher.Plugin.Program/Programs/Win32.cs

@@ -414,7 +414,7 @@ private static IEnumerable<Win32> StartMenuPrograms(string[] suffixes, string[]
             return programs;
         }
 
-        private static IEnumerable<Win32> PATHPrograms(string[] suffixes, string[] protocols)
+        private static IEnumerable<Win32> PATHPrograms(string[] suffixes, string[] protocols, List<string> commonParents)
         {
             var pathEnv = Environment.GetEnvironmentVariable("Path");
             if (String.IsNullOrEmpty(pathEnv)) 
@@ -424,6 +424,8 @@ private static IEnumerable<Win32> PATHPrograms(string[] suffixes, string[] proto
 
             var paths = pathEnv.Split(";", StringSplitOptions.RemoveEmptyEntries).DistinctBy(p => p.ToLowerInvariant());
 
+            paths = paths.Where(x => commonParents.All(parent => !x.StartsWith(parent, StringComparison.OrdinalIgnoreCase)));
+
             var toFilter = paths.AsParallel().SelectMany(p => EnmuerateProgramsInDir(p, suffixes, recursive: false));
 
             var programs = ExceptDisabledSource(toFilter.Distinct())
@@ -592,8 +594,8 @@ public static Win32[] All(Settings settings)
 
                 if (settings.EnablePATHSource)
                 {
-                    var path = PATHPrograms(settings.GetSuffixes(), protocols);
-                    autoIndexPrograms = autoIndexPrograms.Concat(path);
+                    var path = PATHPrograms(settings.GetSuffixes(), protocols, commonParents);
+                    programs = programs.Concat(path);
                 }
 
                 autoIndexPrograms = ProgramsHasher(autoIndexPrograms).ToArray();