[crush] Update crush.lua.

master
Lorenzo Cogotti 2 years ago
parent 2ab4ac44fc
commit 4cd4450352

@ -2,11 +2,39 @@
--
-- Author: Lorenzo Cogotti
-- Copyright: 2022 The DoubleFourteen Code Forge
-- License: MIT (see LICENSE file for details)
-- Home: https://gitea.it/1414codeforge/crush
-- License: MIT
local io = require 'io'
local os = require 'os'
-- Lua version check
local function check_version()
-- Generic Lua version check - 5.2 required
if _VERSION then
local maj, min = _VERSION:match("Lua (%d+)%.(%d+)")
if maj and min then
maj, min = tonumber(maj), tonumber(min)
if maj > 5 or (maj == 5 and min >= 2) then
return true
end
end
end
-- LuaJIT check - 2.0.0 required (technically 2.0.0_beta11)
if jit and jit.version_num and jit.version_num >= 20000 then
return true
end
return false
end
if not check_version() then
error("Unsupported Lua version!\nSorry, crush requires Lua 5.2 or LuaJIT 2.0.0.")
end
-- System specific functions
--
-- Portions of this code are based on work from the LuaRocks project.
@ -24,10 +52,6 @@ local chdir
local mkdir
if is_windows then
-- ---------------
-- NOTE: untested!
-- ---------------
-- local
function is_directory(path)
local fh, _, code = io.open(path, 'r')
@ -178,7 +202,11 @@ local function fetch(dep)
fullcmd = chdir("lib", quiet(cmd))
end
if not os.execute(fullcmd) then
-- On success, os.execute() returns:
-- true on regular Lua
-- 0 on LuaJIT (actual OS error code)
local code = os.execute(fullcmd)
if code ~= true and code ~= 0 then
error(dep.name..": Dependency fetch failed ("..cmd..").")
end
end

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