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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-present, Xmake Open Source Community.
--
-- @author ruki
-- @file gn.lua
--
-- imports
import("core.base.option")
import("core.tool.toolchain")
import("lib.detect.find_tool")
import("package.tools.ninja")
-- get build directory
function _get_builddir(opt)
if opt and (opt.builddir or opt.buildir) then
if opt.buildir then
wprint("{buildir = } has been deprecated, please use {builddir = } in gn.install")
end
return opt.builddir or opt.buildir
else
_g.builddir = _g.builddir or ("build_" .. hash.uuid4():split('%-')[1])
return _g.builddir
end
end
-- get configs
function _get_configs(package, configs, opt)
configs = configs or {}
if not package:is_plat("windows") then
configs.cc = package:build_getenv("cc")
configs.cxx = package:build_getenv("cxx")
end
if package:is_plat("macosx") then
configs.extra_ldflags = {"-lstdc++"}
local xcode = toolchain.load("xcode", {plat = package:plat(), arch = package:arch()})
configs.xcode_sysroot = xcode:config("xcode_sysroot")
end
if package:is_plat("linux") then
configs.target_os = "linux"
elseif package:is_plat("macosx") then
configs.target_os = "mac"
elseif package:is_plat("windows") then
configs.target_os = "win"
elseif package:is_plat("iphoneos") then
configs.target_os = "ios"
elseif package:is_plat("android") then
configs.target_os = "android"
end
if package:is_arch("x86", "i386") then
configs.target_cpu = "x86"
elseif package:is_arch("x64", "x86_64") then
configs.target_cpu = "x64"
elseif package:is_arch("arm64", "arm64-v8a") then
configs.target_cpu = "arm64"
elseif package:is_arch("arm.*") then
configs.target_cpu = "arm"
end
if configs.is_debug == nil then
configs.is_debug = package:is_debug() and true or false
end
return configs
end
-- get msvc
function _get_msvc(package)
local msvc = package:toolchain("msvc")
assert(msvc:check(), "vs not found!") -- we need to check vs envs if it has been not checked yet
return msvc
end
-- get the build environments
function buildenvs(package, opt)
local envs = {}
if package:is_plat("windows") then
envs = os.joinenvs(_get_msvc(package):runenvs())
end
return envs
end
-- generate build files for ninja
function generate(package, configs, opt)
-- init options
opt = opt or {}
-- pass configurations
local argv = {}
local args = {}
table.insert(argv, "gen")
table.insert(argv, _get_builddir(opt))
for name, value in pairs(_get_configs(package, configs, opt)) do
if type(value) == "string" then
table.insert(args, name .. "=\"" .. value .. "\"")
elseif type(value) == "table" then
table.insert(args, name .. "=[\"" .. table.concat(value, "\",\"") .. "\"]")
else
table.insert(args, name .. "=" .. tostring(value))
end
end
table.insert(argv, "--args=" .. table.concat(args, ' '))
-- do configure
local gn = assert(find_tool("gn"), "gn not found!")
os.vrunv(gn.program, argv, {envs = opt.envs or buildenvs(package)})
end
-- build package
function build(package, configs, opt)
-- generate build files
opt = opt or {}
generate(package, configs, opt)
-- do build
local builddir = _get_builddir(opt)
local targets = table.wrap(opt.targets or opt.target)
ninja.build(package, targets, {builddir = builddir, envs = opt.envs or buildenvs(package, opt)})
end
-- install package
function install(package, configs, opt)
-- generate build files
opt = opt or {}
generate(package, configs, opt)
-- do build and install
local builddir = _get_builddir(opt)
local targets = table.wrap(opt.targets or opt.target)
ninja.install(package, targets, {builddir = builddir, envs = opt.envs or buildenvs(package, opt)})
end
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