[crush] Add Lua version compatibility check.

master
Lorenzo Cogotti 2 years ago
parent 7687b1d06e
commit 1e19ea0290

@ -7,6 +7,33 @@
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.

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