initial commit: fork

apps/bot/scripts/audio/lmove.lua

@@ -0,0 +1,20 @@
+local KEY = KEYS[1]
+local FROM = tonumber(ARGV[1])
+local TO = tonumber(ARGV[2])
+
+if FROM == nil then return redis.redis_error('origin must be a number') end
+if TO == nil then return redis.redis_error('destination must be a number') end
+
+local list = redis.call('lrange', KEY, 0, -1)
+
+if FROM == TO then return 'OK' end
+if FROM < 0 then FROM = #list + FROM end
+if TO < 0 then TO = #list + TO end
+
+-- provided indexes are 0-based
+local val = table.remove(list, FROM + 1)
+table.insert(list, TO + 1, val)
+
+redis.call('del', KEY)
+redis.call('rpush', KEY, unpack(list))
+return 'OK'