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Make tp tubes use mod storage with prefixed keys (#179)

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* Make tp tubes use mod storage with prefixed keys

* Move migration code to `migrate_tube_db`

* Fix precision loss when converting hashes to string
This commit is contained in:
Watilin
2025-12-25 17:21:16 +01:00
committed by GitHub
parent c9c6f2cdaf
commit 62b966ab6c
1 changed files with 32 additions and 12 deletions
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44
tubes/teleport.lua
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@@ -2,6 +2,7 @@
local S = core.get_translator("pipeworks")
local filename = core.get_worldpath().."/teleport_tubes" -- Only used for backward-compat
local storage = core.get_mod_storage()
local STORAGE_PREFIX = "tptube_"
local enable_logging = core.settings:get_bool("pipeworks_log_teleport_tubes", false)
@@ -36,17 +37,24 @@ end
local function save_tube_db()
receiver_cache = {}
local fields = {version = tube_db_version}
storage:set_string("version", "") -- cleanup prefix-less entry
storage:set_int(STORAGE_PREFIX.."version", tube_db_version)
for key, val in pairs(tube_db) do
fields[key] = serialize_tube(val)
storage:set_string(key, "")
storage:set_string(
string.format("%s%.0f", STORAGE_PREFIX, key),
serialize_tube(val)
)
end
storage:from_table({fields = fields})
end
local function save_tube(hash)
local tube = tube_db[hash]
receiver_cache[tube.channel] = nil
storage:set_string(hash, serialize_tube(tube))
storage:set_string(
string.format("%s%.0f", STORAGE_PREFIX, hash),
serialize_tube(tube)
)
end
local function remove_tube(pos)
@@ -54,17 +62,26 @@ local function remove_tube(pos)
if tube_db[hash] then
receiver_cache[tube_db[hash].channel] = nil
tube_db[hash] = nil
storage:set_string(hash, "")
storage:set_string(string.format("%s%.0f", STORAGE_PREFIX, hash), "")
end
end
local function migrate_tube_db()
-- check prefix-less version number
if storage:get_int("version") == 4 then
for key, val in pairs(storage:to_table().fields) do
if tonumber(key) then
tube_db[key] = deserialize_tube(key, val)
end
-- ignore other keys
end
save_tube_db()
return
end
if storage:get_int("version") == 3 then
for key, val in pairs(storage:to_table().fields) do
if tonumber(key) then
tube_db[key] = core.deserialize(val)
elseif key ~= "version" then
error("Unknown field in teleport tube database: "..key)
end
end
save_tube_db()
@@ -93,17 +110,20 @@ local function migrate_tube_db()
end
local function read_tube_db()
local version = storage:get_int("version")
local version = storage:get_int(STORAGE_PREFIX.."version")
if version < tube_db_version then
migrate_tube_db()
elseif version > tube_db_version then
error("Cannot read teleport tube database of version "..version)
else
for key, val in pairs(storage:to_table().fields) do
if tonumber(key) then
tube_db[key] = deserialize_tube(key, val)
elseif key ~= "version" then
error("Unknown field in teleport tube database: "..key)
local short_key = string.match(key, "^"..STORAGE_PREFIX.."(.+)")
if short_key then -- only handle keys relevant to tp tubes
if tonumber(short_key) then
tube_db[short_key] = deserialize_tube(short_key, val)
elseif short_key ~= "version" then
error("Unknown field in teleport tube database: "..short_key)
end
end
end
end