77 lines
2.5 KiB
Lua
77 lines
2.5 KiB
Lua
-- serialize_lib
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--[[
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Copyright (C) 2020 Moritz Blei (orwell96) and contributors
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as
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published by the Free Software Foundation, either version 3 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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]]--
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serialize_lib = {}
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--[[ Configuration table
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Whenever asked for a "config", the following table structure is expected:
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config = {
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skip_empty_tables = false -- if true, does not store empty tables
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-- On next read, keys that mapped to empty tables resolve to nil
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-- Used by: write_table_to_file
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}
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Not all functions use all of the parameters, so you can simplify your config sometimes
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]]
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-- log utils
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-- =========
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function serialize_lib.log_error(text)
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minetest.log("error", "[serialize_lib] ("..(minetest.get_current_modname() or "?").."): "..(text or "<nil>"))
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end
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function serialize_lib.log_warn(text)
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minetest.log("warning", "[serialize_lib] ("..(minetest.get_current_modname() or "?").."): "..(text or "<nil>"))
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end
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function serialize_lib.log_info(text)
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minetest.log("action", "[serialize_lib] ("..(minetest.get_current_modname() or "?").."): "..(text or "<nil>"))
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end
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function serialize_lib.log_debug(text)
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minetest.log("action", "[serialize_lib] ("..(minetest.get_current_modname() or "?")..") DEBUG: "..(text or "<nil>"))
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end
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-- basic serialization/deserialization
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-- ===================================
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local mp = minetest.get_modpath(minetest.get_current_modname())
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serialize_lib.serialize = dofile(mp.."/serialize.lua")
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dofile(mp.."/atomic.lua")
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local ser = serialize_lib.serialize
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-- Opens the passed filename, and returns deserialized table
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-- When an error occurs, logs an error and returns false
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function serialize_lib.read_table_from_file(filename)
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local succ, ret = pcall(ser.read_from_file, filename)
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if not succ then
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serialize_lib.log_error(ret)
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return false,ret
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end
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return ret
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end
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-- Writes table into file
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-- When an error occurs, logs an error and returns false
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function serialize_lib.write_table_to_file(root_table, filename)
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local succ, ret = pcall(ser.write_to_file, root_table, filename)
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if not succ then
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serialize_lib.log_error(ret)
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return false,ret
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end
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return true
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end
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