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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 pkgconfig.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("lib.detect.find_tool")
-- get pkgconfig
function _get_pkgconfig()
local pkgconfig = find_tool("pkg-config") or find_tool("pkgconf")
if pkgconfig then
return pkgconfig.program
end
end
-- get version
--
-- @param name the package name
-- @param opt the argument options, {configdirs = {"/xxxx/pkgconfig/"}}
--
function version(name, opt)
-- attempt to add search paths from pkg-config
local pkgconfig = _get_pkgconfig()
if not pkgconfig 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", table.unpack(configdirs))
end
-- get version
local version = try { function() return os.iorunv(pkgconfig, {"--modversion", name}) end }
if version then
version = version:trim()
end
-- restore PKG_CONFIG_PATH
if configdirs_old then
os.setenv("PKG_CONFIG_PATH", configdirs_old)
end
-- ok?
return version
end
-- get variables
--
-- @param name the package name
-- @param variables the variables
-- @param opt the argument options, {configdirs = {"/xxxx/pkgconfig/"}}
--
function variables(name, variables, opt)
opt = opt or {}
local pkgconfig = _get_pkgconfig()
if not pkgconfig then
return
end
local result = nil
local envs = {PKG_CONFIG_PATH = opt.configdirs}
if variables then
for _, variable in ipairs(table.wrap(variables)) do
local value = try { function ()
return os.iorunv(pkgconfig, {"--variable=" .. variable, name}, {envs = envs})
end }
if value ~= nil then
result = result or {}
result[variable] = value:trim()
end
end
end
return result
end
-- get pcfile path
--
-- @param name the package name
-- @param opt the argument options, {configdirs = {"/xxxx/pkgconfig/"}}
--
function pcfile(name, opt)
opt = opt or {}
local pkgconfig = _get_pkgconfig()
if not pkgconfig then
return
end
local envs = {PKG_CONFIG_PATH = opt.configdirs}
local result = try { function ()
return os.iorunv(pkgconfig, {"--path", name}, {envs = envs})
end }
if result then
result = result:trim()
end
return result
end
-- get library info
--
-- @param name the package name
-- @param opt the argument options, {version = true, variables = "includedir", configdirs = {"/xxxx/pkgconfig/"}}
--
-- @return {links = {"ssl", "crypto", "z"}, linkdirs = {""}, includedirs = {""}, version = ""}
--
-- @code
--
-- local libinfo = pkgconfig.libinfo("openssl")
--
-- @endcode
--
function libinfo(name, opt)
opt = opt or {}
local pkgconfig = _get_pkgconfig()
if not pkgconfig then
return
end
-- get cflags
local found
local result = {}
local envs = {PKG_CONFIG_PATH = opt.configdirs}
local cflags = try {function ()
return os.iorunv(pkgconfig, {"--cflags", name}, {envs = envs})
end, catch {function (errs)
found = false
end}}
if cflags then
for _, flag in ipairs(os.argv(cflags)) do
if flag:startswith("-I") and #flag > 2 then
local includedir = flag:sub(3)
if includedir and os.isdir(includedir) then
result.includedirs = result.includedirs or {}
table.insert(result.includedirs, includedir)
end
elseif flag:startswith("-D") and #flag > 2 then
local define = flag:sub(3)
result.defines = result.defines or {}
table.insert(result.defines, define)
elseif flag:startswith("-") and #flag > 1 then
result.cxflags = result.cxflags or {}
table.insert(result.cxflags, flag)
end
end
end
-- libinfo may be empty body, but it's also valid
-- @see https://github.com/xmake-io/xmake/issues/3777#issuecomment-1568453316
if found == false then
return
end
-- get libs and ldflags
local ldflags = try { function () return os.iorunv(pkgconfig, {"--libs", name}, {envs = envs}) end }
if ldflags then
for _, flag in ipairs(os.argv(ldflags)) do
if flag:startswith("-L") and #flag > 2 then
local linkdir = flag:sub(3)
if linkdir and os.isdir(linkdir) then
result.linkdirs = result.linkdirs or {}
table.insert(result.linkdirs, linkdir)
end
elseif flag:startswith("-l") and #flag > 2 then
-- https://github.com/xmake-io/xmake/issues/4292
local link = flag:startswith("-l:") and flag:sub(4) or flag:sub(3)
result.links = result.links or {}
table.insert(result.links, link)
elseif flag:startswith("-") and #flag > 1 then
result.ldflags = result.ldflags or {}
result.shflags = result.shflags or {}
table.insert(result.ldflags, flag)
table.insert(result.shflags, flag)
end
end
end
-- get version
local version = try { function() return os.iorunv(pkgconfig, {"--modversion", name}, {envs = envs}) end }
if version then
result.version = version:trim()
end
return result
end
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