Release Select destination tracks of selected tracks sends recursivel…

…y v1.2.1 (ReaTeam#187)

Fix crash when encountering feedback routings

Tracks Properties/cfillion_Select destination tracks of selected tracks sends recursively.lua

@@ -1,15 +1,10 @@
 -- @description Select destination tracks of selected tracks sends recursively
--- @version 1.2
 -- @author cfillion
--- @changelog
---   Fix a bug causing some tracks to not be selected in a single shot
---   Ignore muted sends
---   Select tracks up the folder hierarchy (obeying parent send)
+-- @version 1.2.1
+-- @changelog Fix crash when encountering feedback routings
+-- @provides [main] . > cfillion_Select destination tracks of selected tracks sends recursively (background).lua
 -- @link Forum thread https://forum.cockos.com/showthread.php?t=183638
 -- @donation https://www.paypal.me/cfillion
--- @provides
---   [main] .
---   [main] . > cfillion_Select destination tracks of selected tracks sends recursively (background).lua
 
 -- This file is also used by cfillion_Select source tracks of selected tracks sends recursively.lua
 
@@ -19,9 +14,9 @@ local destination = scriptName:match("destination")
 
 local selected = {}
 
-local function wasSelected(match)
-  for i,track in ipairs(selected) do
-    if track == match then
+local function inArray(haystack, match)
+  for i,item in ipairs(haystack) do
+    if item == match then
       return true
     end
   end
@@ -70,12 +65,16 @@ local function enumDirectChildTracks(track)
   end
 end
 
-local function highlight(track, select)
+local function highlight(track, select, seenTracks)
+  if not seenTracks then seenTracks = {} end
+  if inArray(seenTracks, track) then return end
+  table.insert(seenTracks, track)
+
   for target in enumSendTracks(track) do
     reaper.SetTrackSelected(target, select)
 
     if select then
-      highlight(target, select)
+      highlight(target, select, seenTracks)
     end
   end
 
@@ -84,12 +83,12 @@ local function highlight(track, select)
     local parent = parentSend and reaper.GetParentTrack(track)
     if parent then
       reaper.SetTrackSelected(parent, select)
-      highlight(parent, select)
+      highlight(parent, select, seenTracks)
     end
   else
     for child in enumDirectChildTracks(track) do
       reaper.SetTrackSelected(child, select)
-      highlight(child, select)
+      highlight(child, select, seenTracks)
     end
   end
 end
@@ -98,7 +97,7 @@ local function main()
   for i=0,reaper.CountSelectedTracks(0)-1 do
     local track = reaper.GetSelectedTrack(0, i)
 
-    if not wasSelected(track) then
+    if not inArray(selected, track) then
       table.insert(selected, track)
     end
   end