uniham/system/registry.lua

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-- Localize & Initialize
local register_hammer = uniham.register_hammer
local modpath = uniham.modpath
local registry = modpath..DIR_DELIM..'registry'
local depends = io.open(modpath..DIR_DELIM..'depends.txt', 'rb')
local log_prefix = '['..minetest.get_current_modname()..'] '
-- Check if a file exists
--
-- This function validates the existence of a file by trying to open the file
-- for reading. If this succeeds the file is present.
--
-- @param file_name The file name (path) to be checked
local file_exists = function (file_name)
local f = io.open(file_name ,'r')
if f ~= nil then
io.close(f)
return true
else
return false
end
end
-- Check if the depends.txt file was read properly
-- Iterate over all lines
-- Check if the mod exists
-- Check if a registry file exists
-- dofile() the file and print a log message
if depends ~= nil then
local lines = {}
for line in depends:lines() do
local modname = line:gsub('?', '')
if minetest.get_modpath(modname) then
local registry_file = registry..DIR_DELIM..modname..'.lua'
if file_exists(registry_file) then
dofile(registry_file)
local message = 'Loaded built-in '..modname..' support'
minetest.log('action', log_prefix..message)
end
end
end
end