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--!A cross-platform build utility based on Lua
--
-- Licensed 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) 2015-2020, TBOOX Open Source Group.
--
-- @author ruki
-- @file environment.lua
--
-- define module
local environment = environment or {}
-- load modules
local os = require("base/os")
local table = require("base/table")
local global = require("base/global")
local platform_core = require("platform/platform")
local sandbox = require("sandbox/sandbox")
local package = require("package/package")
local import = require("sandbox/modules/import")
-- enter the toolchains environment
function environment._enter_toolchains()
-- get the current platform
local platform, errors = platform_core.load()
if not platform then
return false, errors
end
-- add $programdir/winenv/bin to $path
local oldenvs = {}
oldenvs.PATH = os.getenv("PATH")
if os.host() == "windows" then
os.addenv("PATH", path.join(os.programdir(), "winenv", "bin"))
end
environment._OLDENVS_TOOLCHAINS = oldenvs
return true
end
-- leave the toolchains environment
function environment._leave_toolchains()
local oldenvs = environment._OLDENVS_TOOLCHAINS
for name, values in pairs(oldenvs) do
os.setenv(name, values)
end
return true
end
-- enter the running environment
function environment._enter_run()
local oldenvs = {}
oldenvs.PATH = os.getenv("PATH")
oldenvs.LD_LIBRARY_PATH = os.getenv("LD_LIBRARY_PATH")
environment._OLDENVS_RUN = oldenvs
return true
end
-- leave the running environment
function environment._leave_run()
local oldenvs = environment._OLDENVS_RUN
for name, values in pairs(oldenvs) do
os.setenv(name, values)
end
return true
end
-- enter the environment for the current platform
function environment.enter(name)
-- need enter?
local entered = environment._ENTERED or {}
environment._ENTERED = entered
if entered[name] then
entered[name] = entered[name] + 1
return true
else
entered[name] = 1
end
-- do enter
local maps = {toolchains = environment._enter_toolchains, run = environment._enter_run}
local func = maps[name]
if func then
local ok, errors = func()
if not ok then
return false, errors
end
end
return true
end
-- leave the environment for the current platform
function environment.leave(name)
-- need leave?
local entered = environment._ENTERED or {}
if entered[name] then
entered[name] = entered[name] - 1
end
if entered[name] == 0 then
entered[name] = nil
else
return true
end
-- do leave
local maps = {toolchains = environment._leave_toolchains, run = environment._leave_run}
local func = maps[name]
if func then
local ok, errors = func()
if not ok then
return false, errors
end
end
return true
end
-- return module
return environment
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