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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, TBOOX Open Source Group.
--
-- @author ruki
-- @file find_link.lua
--
-- imports
import("lib.detect.find_program")
import("lib.detect.find_programver")
import("lib.detect.find_tool")
-- find link
--
-- @param opt the argument options, e.g. {version = true}
--
-- @return program, version
--
-- @code
--
-- local link = find_link()
--
-- @endcode
--
function main(opt)
-- init version info first
local version = nil
local verinfo = nil
-- init options
opt = opt or {}
opt.check = opt.check or function (program)
local toolchain = opt.toolchain
if toolchain and toolchain:name() == "masm32" then
-- if this link.exe is from masm32 sdk, we just pass it fastly
-- because it does not contain cl.exe
--
-- TODO maybe we can use ml to improve it
else
local is_clang_cl = toolchain and toolchain:name() == "clang-cl"
local cl = assert(find_tool(is_clang_cl and "clang-cl" or "cl", {envs = opt.envs}))
-- make an stub source file
local binaryfile = os.tmpfile() .. ".exe"
local objectfile = os.tmpfile() .. ".obj"
local sourcefile = os.tmpfile() .. ".c"
-- compile sourcefile first
io.writefile(sourcefile, "int main(int argc, char** argv)\n{return 0;}\n")
os.runv(cl.program, {"-c", "-Fo" .. objectfile, sourcefile}, {envs = opt.envs})
-- do link
verinfo = os.iorunv(program, {"-lib", "-out:" .. binaryfile, objectfile}, {envs = opt.envs})
-- remove files
os.rm(objectfile)
os.rm(sourcefile)
os.rm(binaryfile)
end
end
opt.command = opt.command or function () return verinfo end
opt.parse = opt.parse or function (output) return output:match("Version (%d+%.?%d*%.?%d*.-)%s") end
-- find program
local program = find_program(opt.program or "link.exe", opt)
-- find program version
if program and opt and opt.version then
version = find_programver(program, opt)
end
return program, version
end
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