Initial commit of working RSS Aggregator build

node_modules/bullmq/dist/esm/commands/moveToWaitingChildren-4.lua

@@ -0,0 +1,62 @@
+--[[
+  Moves job from active to waiting children set.
+
+  Input:
+    KEYS[1] lock key
+    KEYS[2] active key
+    KEYS[3] waitChildrenKey key
+    KEYS[4] job key
+
+    ARGV[1] token
+    ARGV[2] child key
+    ARGV[3] timestamp
+    ARGV[4] the id of the job
+    
+  Output:
+    0 - OK
+    1 - There are not pending dependencies.
+   -1 - Missing job.
+   -2 - Missing lock
+   -3 - Job not in active set
+]]
+local rcall = redis.call
+
+local function moveToWaitingChildren (activeKey, waitingChildrenKey, jobId, timestamp, lockKey, token)
+  if token ~= "0" then
+    if rcall("GET", lockKey) == token then
+      rcall("DEL", lockKey)
+    else
+      return -2
+    end
+  end
+
+  local score = tonumber(timestamp)
+
+  local numRemovedElements = rcall("LREM", activeKey, -1, jobId)
+
+  if(numRemovedElements < 1) then
+    return -3
+  end
+
+  rcall("ZADD", waitingChildrenKey, score, jobId)
+
+  return 0
+end
+
+if rcall("EXISTS", KEYS[4]) == 1 then
+  if ARGV[2] ~= "" then
+    if rcall("SISMEMBER", KEYS[4] .. ":dependencies", ARGV[2]) ~= 0 then
+      return moveToWaitingChildren(KEYS[2], KEYS[3], ARGV[4], ARGV[3], KEYS[1], ARGV[1])
+    end
+
+    return 1
+  else
+    if rcall("SCARD", KEYS[4] .. ":dependencies") ~= 0 then 
+      return moveToWaitingChildren(KEYS[2], KEYS[3], ARGV[4], ARGV[3], KEYS[1], ARGV[1])
+    end
+
+    return 1
+  end
+end
+
+return -1