mirror of
https://github.com/appgurueu/modlib.git
synced 2024-07-02 14:20:25 +02:00
148 lines
3.6 KiB
Lua
148 lines
3.6 KiB
Lua
local modules = {}
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for _, file in pairs{
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"schema",
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"file",
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"func",
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"less_than",
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"iterator",
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"math",
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"table",
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"vararg",
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"text",
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"utf8",
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"vector",
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"matrix4",
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"quaternion",
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"trie",
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"kdtree",
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"hashlist",
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"hashheap",
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"heap",
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"binary",
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"b3d",
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"json",
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"luon",
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"bluon",
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"base64",
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"persistence",
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"debug",
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"web",
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"tex"
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} do
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modules[file] = file
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end
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if minetest then
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modules.minetest = "minetest"
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end
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-- modlib.mod is an alias for modlib.minetest.mod
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modules.string = "text"
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modules.number = "math"
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local parent_dir
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if not minetest then
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-- TOFIX
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local init_path = arg and arg[0]
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parent_dir = init_path and init_path:match"^.[/\\]" or ""
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end
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local dir_delim = rawget(_G, "DIR_DELIM") -- Minetest
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or (rawget(_G, "package") and package.config and assert(package.config:match("^(.-)[\r\n]"))) or "/"
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local function concat_path(path)
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return table.concat(path, dir_delim)
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end
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-- only used if Minetest is available
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local function get_resource(modname, resource, ...)
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if not resource then
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resource = modname
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modname = minetest.get_current_modname()
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end
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return concat_path{minetest.get_modpath(modname), resource, ...}
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end
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local function load_module(self, module_name_or_alias)
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local module_name = modules[module_name_or_alias]
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if not module_name then
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-- no such module
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return
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end
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local environment
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if module_name ~= module_name_or_alias then
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-- alias handling
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environment = self[module_name]
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else
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environment = dofile(minetest
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and get_resource(self.modname, module_name .. ".lua")
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or (parent_dir .. module_name .. ".lua"))
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end
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self[module_name_or_alias] = environment
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return environment
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end
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local rawget, rawset = rawget, rawset
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modlib = setmetatable({}, { __index = load_module })
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-- TODO bump on release
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modlib.version = 102
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if minetest then
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modlib.modname = minetest.get_current_modname()
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end
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-- Raw globals
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modlib._RG = setmetatable({}, {
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__index = function(_, index)
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return rawget(_G, index)
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end,
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__newindex = function(_, index, value)
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return rawset(_G, index, value)
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end
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})
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-- Globals merged with modlib
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modlib.G = setmetatable({}, {__index = function(self, module_name)
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local module = load_module(self, module_name)
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if module == nil then
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return _G[module_name]
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end
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if _G[module_name] then
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setmetatable(module, {__index = _G[module_name]})
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end
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return module
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end})
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-- "Imports" modlib by changing the environment of the calling function
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--! This alters environments at the expense of performance. Use with caution.
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--! Prefer localizing modlib library functions or API tables if possible.
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function modlib.set_environment()
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setfenv(2, setmetatable({}, {__index = modlib.G}))
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end
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-- Force load file module to pass dir_delim & to set concat_path
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modlib.file = assert(loadfile(get_resource"file.lua"))(dir_delim)
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modlib.file.concat_path = concat_path
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if minetest then
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-- Force-loading of the minetest & mod modules
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-- Also sets modlib.mod -> modlib.minetest.mod alias.
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local ml_mt = modlib.minetest
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ml_mt.mod.get_resource = get_resource
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modlib.mod = ml_mt.mod
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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"))
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local ie = minetest.request_insecure_environment()
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if ie then
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-- Force load persistence namespace to pass insecure require
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-- TODO currently no need to set _G.require, lsqlite3 loads no dependencies that way
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modlib.persistence = assert(loadfile(get_resource"persistence.lua"))(ie.require)
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end
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end
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-- Run build scripts
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-- dofile(modlib.mod.get_resource("modlib", "build", "html_entities.lua"))
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-- TODO verify localizations suffice
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return modlib
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