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--!A cross-platform build utility based on Lua
--
-- Licensed to the Apache Software Foundation (ASF) under one
-- or more contributor license agreements. See the NOTICE file
-- distributed with this work for additional information
-- regarding copyright ownership. The ASF licenses this file
-- to you under the Apache License, Version 2.0 (the
-- "License"); you may not use this file except in compliance
-- with the License. You may obtain a copy of the License at
--
-- http://www.apache.org/licenses/LICENSE-2.0
--
-- Unless required by applicable law or agreed to in writing, software
-- distributed under the License is distributed on an "AS IS" BASIS,
-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-- See the License for the specific language governing permissions and
-- limitations under the License.
--
-- Copyright (C) 2015 - 2018, TBOOX Open Source Group.
--
-- @author ruki
-- @file macos.lua
--
-- define module: macos
local macos = macos or {}
-- load modules
local os = require("base/os")
local semver = require("base/semver")
-- get system version
function macos.version()
-- get it from cache first
if macos._VERSION ~= nil then
return macos._VERSION
end
-- get macver
local macver = nil
local ok, verstr = os.iorun("sw_vers -productVersion")
if ok and verstr then
macver = verstr:match("%d+%.%d+%.%d+")
if macver then
macver = macver:trim()
end
macver = semver.new(macver)
end
-- save to cache
macos._VERSION = macver or false
-- done
return macver
end
-- return module: macos
return macos
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