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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 pkg_config.lua
--
-- imports
import("core.base.global")
import("core.project.target")
import("core.project.config")
import("lib.detect.find_file")
import("lib.detect.find_library")
import("detect.tools.find_brew")
import("detect.tools.find_pkg_config")
-- get package info
--
-- @param name the package name
-- @param opt the argument options, {version = true, configdirs = {"/xxxx/pkgconfig/"}}
--
-- @return {links = {"ssl", "crypto", "z"}, linkdirs = {""}, includedirs = {""}, version = ""}
--
-- @code
--
-- local pkginfo = pkg_config.info("openssl")
--
-- @endcode
--
function info(name, opt)
-- attempt to add search pathes from pkg-config
local pkg_config = find_pkg_config()
if not pkg_config then
return
end
-- init options
opt = opt or {}
-- init PKG_CONFIG_PATH
local configdirs_old = os.getenv("PKG_CONFIG_PATH")
local configdirs = table.wrap(opt.configdirs)
if #configdirs > 0 then
os.setenv("PKG_CONFIG_PATH", unpack(configdirs))
end
-- get libs and cflags
local result = nil
local flags = try { function () return os.iorunv(pkg_config, {"--libs", "--cflags", name}) end }
if flags then
-- init result
result = {}
for _, flag in ipairs(flags:split('%s')) do
-- get links
local link = flag:match("%-l(.*)")
if link then
result.links = result.links or {}
table.insert(result.links, link)
end
-- get linkdirs
local linkdirs = nil
local linkdir = flag:match("%-L(.*)")
if linkdir and os.isdir(linkdir) then
result.linkdirs = result.linkdirs or {}
table.insert(result.linkdirs, linkdir)
end
-- get includedirs
local includedirs = nil
local includedir = flag:match("%-I(.*)")
if includedir and os.isdir(includedir) then
result.includedirs = result.includedirs or {}
table.insert(result.includedirs, includedir)
end
end
end
-- get version
local version = try { function() return os.iorunv(pkg_config, {"--modversion", name}) end }
if version then
result = result or {}
result.version = version:trim()
end
-- restore PKG_CONFIG_PATH
if configdirs_old then
os.setenv("PKG_CONFIG_PATH", configdirs_old)
end
-- ok?
return result
end
-- find package
--
-- @param name the package name
-- @param opt the argument options, {plat = "", arch = "", links = {...}}
--
-- @return {links = {"ssl", "crypto", "z"}, linkdirs = {""}, includedirs = {""}}
--
-- @code
--
-- local pkginfo = pkg_config.find("openssl")
--
-- @endcode
--
function find(name, opt)
-- init options
opt = opt or {}
-- get package info
local pkginfo = info(name, opt)
if not pkginfo then
return
end
-- get links
local links = pkginfo.links
if not links or #links == 0 then
links = opt.links
end
-- find library
local result = nil
local linkdirs = table.wrap(pkginfo.linkdirs)
for _, link in ipairs(links) do
local libinfo = find_library(link, linkdirs)
if libinfo then
result = result or {}
result.links = table.join(result.links or {}, libinfo.link)
result.linkdirs = table.join(result.linkdirs or {}, libinfo.linkdir)
end
end
-- found?
if result and result.links then
result.linkdirs = table.unique(result.linkdirs)
result.includedirs = table.join(result.includedirs or {}, pkginfo.includedirs)
end
-- save version
if result and pkginfo.version then
result.version = pkginfo.version
end
-- ok?
return result
end
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