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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 - 2019, TBOOX Open Source Group.
--
-- @author ruki
-- @file environment.lua
--
-- imports
import("core.project.config")
import("core.platform.environment")
import("core.package.package", {alias = "core_package"})
import("lib.detect.find_tool")
import("package")
-- enter the package environments
function _enter_package(package_name, envs, installdir)
-- save the old environments
_g._OLDENVS = _g._OLDENVS or {}
local oldenvs = _g._OLDENVS[package_name]
if not oldenvs then
oldenvs = {}
_g._OLDENVS[package_name] = oldenvs
end
-- add the new environments
oldenvs.PATH = os.getenv("PATH")
for name, values in pairs(envs) do
oldenvs[name] = oldenvs[name] or os.getenv(name)
if name == "PATH" then
for _, value in ipairs(values) do
if path.is_absolute(value) then
os.addenv(name, value)
else
os.addenv(name, path.join(installdir, value))
end
end
else
os.addenv(name, unpack(table.wrap(values)))
end
end
end
-- leave the package environments
function _leave_package(package_name)
_g._OLDENVS = _g._OLDENVS or {}
local oldenvs = _g._OLDENVS[package_name]
if oldenvs then
for name, values in pairs(oldenvs) do
os.setenv(name, values)
end
_g._OLDENVS[package_name] = nil
end
end
-- enter environment of the given binary packages, git, 7z, ..
function _enter_packages(...)
for _, name in ipairs({...}) do
for _, manifest_file in ipairs(os.files(path.join(core_package.installdir(), name:sub(1, 1), name, "*", "*", "manifest.txt"))) do
local manifest = io.load(manifest_file)
if manifest and manifest.plat == os.host() and manifest.arch == os.arch() then
_enter_package(name, manifest.envs, path.directory(manifest_file))
end
end
end
end
-- leave environment of the given binary packages, git, 7z, ..
function _leave_packages(...)
for _, name in ipairs({...}) do
_leave_package(name)
end
end
-- enter environment
--
-- ensure that we can find some basic tools: git, unzip, ...
--
-- If these tools not exist, we will install it first.
--
function enter()
-- set search pathes of toolchains
environment.enter("toolchains")
-- unzip is necessary
if not find_tool("unzip") then
raise("unzip not found! we need install it first")
end
-- enter the environments of git and 7z
_enter_packages("git", "7z")
-- git not found? install it first
local packages = {}
if not find_tool("git") then
table.join2(packages, package.install_packages("git"))
end
-- missing the necessary unarchivers for *.gz, *.7z? install them first, e.g. gzip, 7z, tar ..
if not ((find_tool("gzip") and find_tool("tar")) or find_tool("7z")) then
table.join2(packages, package.install_packages("7z"))
end
-- enter the environments of installed packages
for _, instance in ipairs(packages) do
instance:envs_enter()
end
_g._PACKAGES = packages
end
-- leave environment
function leave()
-- leave the environments of installed packages
for _, instance in irpairs(_g._PACKAGES) do
instance:envs_leave()
end
_g._PACKAGES = nil
-- leave the environments of git and 7z
_leave_packages("7z", "git")
-- restore search pathes of toolchains
environment.leave("toolchains")
end
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