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Experimental lazy loading

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This commit is contained in:
Lars Mueller 2021-03-29 14:37:57 +02:00
parent 82f0e2942a
commit 10ad1270e8
1 changed files with 68 additions and 55 deletions
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123
init.lua
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@ -34,9 +34,51 @@ if _VERSION then
end
end
modlib = {
local modules = {}
for _, file in pairs{
"schema",
"file",
"func",
"math",
"table",
"text",
"vector",
"quaternion",
"trie",
"kdtree",
"heap",
"ranked_set",
"binary",
"b3d",
"bluon"
} do
modules[file] = file
end
if minetest then
modules.minetest = {
"misc",
"collisionboxes",
"liquid",
"raycast",
"wielditem_change",
"colorspec"
}
for _, file in pairs{
"data",
"log",
"player",
-- deprecated
"conf"
} do
modules[file] = file
end
end
local load_module, get_resource, loadfile_exports
modlib = setmetatable({
-- TODO bump on release
version = 55,
modname = minetest and minetest.get_current_modname(),
dir_delim = rawget(_G, "DIR_DELIM") or "/",
_RG = setmetatable({}, {
__index = function(_, index)
@ -51,9 +93,24 @@ modlib = {
error(dump(value), 2)
end
end
}
}, {
__index = function(self, module_name)
local files = modules[module_name]
local module
if type(files) == "string" then
module = load_module(files)
elseif files then
module = loadfile_exports(get_resource(self.modname, module_name, files[1] .. ".lua"))
for index = 2, #files do
self.mod.include_env(get_resource(self.modname, module_name, files[index] .. ".lua"), module)
end
end
self[module_name] = module
return module
end
})
local function get_resource(modname, resource, ...)
function get_resource(modname, resource, ...)
if not resource then
resource = modname
modname = minetest.get_current_modname()
@ -61,7 +118,7 @@ local function get_resource(modname, resource, ...)
return table.concat({minetest.get_modpath(modname), resource, ...}, modlib.dir_delim)
end
local function loadfile_exports(filename)
function loadfile_exports(filename)
local env = setmetatable({}, {__index = _G})
local file = assert(loadfile(filename))
setfenv(file, env)
@ -69,59 +126,15 @@ local function loadfile_exports(filename)
return env
end
local minetest_only = {
mod = true,
minetest = true,
data = true,
log = true,
player = true,
-- not actually minetest-only, but a deprecated component
conf = true
}
for _, component in ipairs{
"mod",
"conf",
"schema",
"data",
"file",
"func",
"log",
"math",
"player",
"table",
"text",
"vector",
"quaternion",
{
name = "minetest",
"misc",
"collisionboxes",
"liquid",
"raycast",
"wielditem_change",
"colorspec"
},
"trie",
"kdtree",
"heap",
"ranked_set",
"binary",
"b3d",
"bluon"
} do
if component.name then
if minetest then
modlib[component.name] = loadfile_exports(get_resource(minetest.get_current_modname(), component.name, component[1] .. ".lua"))
for index = 2, #component do
modlib.mod.include_env(get_resource(minetest.get_current_modname(), component.name, component[index] .. ".lua"), modlib[component.name])
end
end
elseif minetest or not minetest_only[component] then
local path = minetest and get_resource(component .. ".lua") or component .. ".lua"
modlib[component] = loadfile_exports(path)
end
local init_path = arg and arg[0]
local parent_dir = init_path and init_path:match"^.[/\\]" or ""
function load_module(module_name)
local file = module_name .. ".lua"
return loadfile_exports(minetest and get_resource(modlib.modname, file) or (parent_dir .. file))
end
modlib.mod = minetest and loadfile_exports(get_resource(modlib.modname, "mod.lua"))
-- Aliases
modlib.string = modlib.text
modlib.number = modlib.math