modlib/init.lua

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-- Lua version check
if _VERSION then
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-- TODO get rid of this string version checking
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if _VERSION < "Lua 5" then
error("Outdated Lua version! modlib requires Lua 5 or greater.")
end
if _VERSION > "Lua 5.1" then
-- not throwing error("Too new Lua version! modlib requires Lua 5.1 or smaller.") anymore
unpack = unpack or table.unpack -- unpack was moved to table.unpack in Lua 5.2
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loadstring = loadstring or load
setfenv = setfenv or function(fn, env)
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local i = 1
while true do
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local name = debug.getupvalue(fn, i)
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if name == "_ENV" then
debug.setupvalue(fn, i, env)
break
elseif not name then
break
end
end
return fn
end
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getfenv = getfenv or function(fn)
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local i = 1
local name, val
repeat
name, val = debug.getupvalue(fn, i)
if name == "_ENV" then
return val
end
i = i + 1
until not name
end
end
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end
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local modules = {}
for _, file in pairs{
"schema",
"file",
"func",
"math",
"table",
"text",
"vector",
"quaternion",
"trie",
"kdtree",
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"hashlist",
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"heap",
"ranked_set",
"binary",
"b3d",
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"json",
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"luon",
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"bluon",
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"persistence",
"debug"
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} do
modules[file] = file
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end
if minetest then
for _, file in pairs{
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"minetest",
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"log",
"player",
-- deprecated
"conf"
} do
modules[file] = file
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end
end
-- aliases
modules.string = "text"
modules.number = "math"
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local parent_dir
if not minetest then
local init_path = arg and arg[0]
parent_dir = init_path and init_path:match"^.[/\\]" or ""
end
-- only used if Minetest is available
local function get_resource(modname, resource, ...)
if not resource then
resource = modname
modname = minetest.get_current_modname()
end
return table.concat({minetest.get_modpath(modname), resource, ...}, modlib.dir_delim)
end
local rawget, rawset = rawget, rawset
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modlib = setmetatable({
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-- TODO bump on release
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version = 73,
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modname = minetest and minetest.get_current_modname(),
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-- TODO
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dir_delim = rawget(_G, "DIR_DELIM") or "/",
_RG = setmetatable({}, {
__index = function(_, index)
return rawget(_G, index)
end,
__newindex = function(_, index, value)
return rawset(_G, index, value)
end
}),
assertdump = minetest and function(v, value)
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if not v then
error(dump(value), 2)
end
end
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}, {
__index = function(self, module_name_or_alias)
local module_name = modules[module_name_or_alias]
if not module_name then
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-- module not available, return nil
return
end
local environment
if module_name ~= module_name_or_alias then
-- alias handling
environment = self[module_name]
else
environment = dofile(minetest
and get_resource(self.modname, module_name .. ".lua")
or (parent_dir .. module_name .. ".lua"))
end
self[module_name_or_alias] = environment
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return environment
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end
})
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if minetest then
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modlib.mod = dofile(get_resource(modlib.modname, "mod.lua"))
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modlib.mod.get_resource = get_resource
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-- HACK force load minetest/gametime.lua to ensure that the globalstep is registered earlier than globalsteps of mods depending on modlib
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dofile(get_resource(modlib.modname, "minetest", "gametime.lua"))
local ie = minetest.request_insecure_environment()
if ie then
-- Force load persistence namespace to pass insecure require
-- TODO currently no need to set _G.require, lsqlite3 loads no dependencies that way
modlib.persistence = assert(loadfile(get_resource"persistence.lua"))(ie.require)
end
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modlib.conf.build_setting_tree()
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end
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--[[
--modlib.mod.include"test.lua"
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]]
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-- TODO verify localizations suffice
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return modlib