mirror of
https://github.com/minetest-mods/carpets.git
synced 2024-08-20 12:34:05 +02:00
77 lines
1.6 KiB
Lua
77 lines
1.6 KiB
Lua
local modutils = {}
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-- class methods
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function modutils.get_modname_by_itemname(itemname)
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local def = minetest.registered_items[itemname]
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if def then
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return def.mod_origin
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else --not loaded item
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local delimpos = string.find(itemname, ":")
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if delimpos then
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return string.sub(itemname, 1, delimpos - 1)
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else
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return nil
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end
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end
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end
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-- object methods
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local function check_depend(this, modname, deptype)
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local depends = this.depends
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if depends[modname] then
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if not deptype then --"required" or "optional" only
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return true
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else
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return (depends[modname] == deptype)
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end
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else
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return false
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end
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end
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local function check_depend_by_itemname(this, itemname, deptype)
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local modname = modutils.get_modname_by_itemname(itemname)
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if modname then
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return this:check_depend(modname, deptype)
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else
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return false
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end
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end
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function modutils.get_depend_checker(modname)
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-- Definition of returning object attributes
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local this = { }
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this.modname = modname
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this.depends = {} -- depends.txt parsed
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this.check_depend = check_depend
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this.check_depend_by_itemname = check_depend_by_itemname
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-- get module path
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local modpath = minetest.get_modpath(modname)
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if not modpath then
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return nil -- module not found
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end
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-- read the depends file
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local dependsfile = io.open(modpath .. "/depends.txt")
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if not dependsfile then
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return nil
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end
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-- parse the depends file
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for line in dependsfile:lines() do
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if line:sub(-1) == "?" then
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line = line:sub(1, -2)
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this.depends[line] = "optional"
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else
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this.depends[line] = "required"
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end
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end
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return this
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end
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return modutils
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