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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 environment.lua
--
-- define module
local environment = environment or {}
-- load modules
local os = require("base/os")
local platform = require("platform/platform")
local sandbox = require("sandbox/sandbox")
local package = require("package/package")
-- enter the toolchains environment
function environment._enter_toolchains()
-- save the toolchains environment
environment._PATH = os.getenv("PATH")
-- add global search binary pathes
local globaldir = package.prefixdir(true, false, os.host(), os.arch())
for _, dir in ipairs(table.wrap(package.getenv(true, false, os.host(), os.arch(), "PATH"))) do
os.addenv("PATH", path.join(globaldir, dir))
end
os.addenv("PATH", path.join(globaldir, "bin"))
-- add local search binary pathes
local localdir = package.prefixdir(false, false, os.host(), os.arch())
for _, dir in ipairs(table.wrap(package.getenv(false, false, os.host(), os.arch(), "PATH"))) do
os.addenv("PATH", path.join(localdir, dir))
end
os.addenv("PATH", path.join(localdir, "bin"))
end
-- leave the toolchains environment
function environment._leave_toolchains()
-- leave the toolchains environment
os.setenv("PATH", environment._PATH)
end
-- enter the running environment
function environment._enter_run()
-- save the running environment
environment._PATH = os.getenv("PATH")
environment._LD_LIBRARY_PATH = os.getenv("LD_LIBRARY_PATH")
-- add global search library pathes of pathes
local globaldir = package.prefixdir(true, false, os.host(), os.arch())
if os.host() == "windows" then
os.addenv("PATH", path.join(globaldir, "lib"))
else
os.addenv("LD_LIBRARY_PATH", path.join(globaldir, "lib"))
end
-- add local search library pathes of pathes
local localdir = package.prefixdir(false, false, os.host(), os.arch())
if os.host() == "windows" then
os.addenv("PATH", path.join(localdir, "lib"))
else
os.addenv("LD_LIBRARY_PATH", path.join(localdir, "lib"))
end
end
-- leave the running environment
function environment._leave_run()
-- leave the running environment
os.setenv("PATH", environment._PATH)
os.setenv("LD_LIBRARY_PATH", environment._LD_LIBRARY_PATH)
end
-- enter the environment for the current platform
function environment.enter(name)
-- the maps
local maps = {toolchains = environment._enter_toolchains, run = environment._enter_run}
-- enter the common environment
local func = maps[name]
if func then
func()
end
-- enter the environment of the given platform
local module = platform.get("environment")
if module then
local ok, errors = sandbox.load(module.enter, name)
if not ok then
return false, errors
end
end
-- ok
return true
end
-- leave the environment for the current platform
function environment.leave(name)
-- leave the environment of the given platform
local module = platform.get("environment")
if module then
local ok, errors = sandbox.load(module.leave, name)
if not ok then
return false, errors
end
end
-- the maps
local maps = {toolchains = environment._leave_toolchains, run = environment._enter_run}
-- leave the common environment
local func = maps[name]
if func then
func()
end
-- ok
return true
end
-- return module
return environment
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