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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_tool.lua
--
-- imports
import("lib.detect.find_program")
import("lib.detect.find_programver")
import("lib.detect.find_toolname")
import("core.base.semver")
import("core.tool.toolchain")
-- find tool from modules
function _find_from_modules(name, opt)
local find_tool = import("detect.tools.find_" .. name, {try = true})
if find_tool then
local program, version, toolname = find_tool(opt)
if program then
return {name = toolname or name, program = program, version = version}
end
end
end
-- find tool
function _find_tool(name, opt)
local toolname = find_toolname(name or opt.program)
if toolname then
local tool = _find_from_modules(toolname, opt)
if tool then
return tool
end
end
opt.program = opt.program or name
local program = find_program(opt.program, opt)
if not program then
return
end
local version = nil
if program and opt.version then
version = find_programver(program, opt)
end
return {name = toolname, program = program, version = version}
end
-- find tool
--
-- @param name the tool name
-- @param opt the options, e.g. {program = "xcrun -sdk macosx clang", paths = {"/usr/bin"},
-- check = function (tool) os.run("%s -h", tool) end, version = true
-- force = true, cachekey = "xxx", envs = {PATH = "xxx"}, system = false}
--
-- @return {name = "", program = "", version = ""} or nil
--
-- @code
--
-- local tool = find_tool("clang")
-- local tool = find_tool("clang", {program = "xcrun -sdk macosx clang"})
-- local tool = find_tool("clang", {paths = {"/usr/bin", "/usr/local/bin"}})
-- local tool = find_tool("clang", {check = "--help"}) -- simple check command: ccache --help
-- local tool = find_tool("clang", {check = function (tool) os.run("%s -h", tool) end})
-- local tool = find_tool("clang", {paths = {"$(env PATH)", "$(reg HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\AeDebug;Debugger)"}})
-- local tool = find_tool("clang", {paths = {"$(env PATH)", function () return "/usr/bin"end}})
-- local tool = find_tool("ccache", {version = true})
--
-- @endcode
--
function main(name, opt)
opt = opt or {}
if opt.require_version then
opt.version = true
end
local result = _find_tool(name, opt)
if opt.require_version and opt.require_version:find('.', 1, true) and result then
if not (result.version and (result.version == opt.require_version or semver.satisfies(result.version, opt.require_version))) then
result = nil
end
end
return result
end
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