Files
rojo/plugin/src/Version.lua
2018-04-01 23:22:04 -07:00

41 lines
632 B
Lua

local function compare(a, b)
if a > b then
return 1
elseif a < b then
return -1
end
return 0
end
local Version = {}
--[[
Compares two versions of the form {major, minor, revision}.
If a is newer than b, 1.
If a is older than b, -1.
If a and b are the same, 0.
]]
function Version.compare(a, b)
local major = compare(a[1], b[1])
local minor = compare(a[2] or 0, b[2] or 0)
local revision = compare(a[3] or 0, b[3] or 0)
if major ~= 0 then
return major
end
if minor ~= 0 then
return minor
end
return revision
end
function Version.display(version)
return table.concat(version, ".")
end
return Version