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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 find_package.lua
--
-- imports
import("core.base.semver")
import("core.base.option")
import("core.project.config")
-- find package with the builtin rule
--
-- opt.system:
-- nil: find local or system packages
-- true: only find system package
-- false: only find local packages
--
function _find_package_with_builtin_rule(package_name, opt)
-- we cannot find it from xmake repo and package directories if only find system packages
local managers = {}
if opt.system ~= true then
table.insert(managers, "xmake")
end
-- find system package if be not disabled
if opt.system ~= false then
-- find it from homebrew
if not is_host("windows") and (opt.mode == nil or opt.mode == "release") then
table.insert(managers, "brew")
end
-- find it from vcpkg (support multi-platforms/architectures)
table.insert(managers, "vcpkg")
-- find it from conan (support multi-platforms/architectures)
table.insert(managers, "conan")
-- only support the current host platform and architecture
if opt.plat == os.host() and opt.arch == os.arch() and (opt.mode == nil or opt.mode == "release") then
-- find it from pkg-config
table.insert(managers, "pkg_config")
-- find it from system
table.insert(managers, "system")
end
end
-- find package from the given package manager
local result = nil
for _, manager_name in ipairs(managers) do
dprint("finding %s from %s ..", package_name, manager_name)
result = import("package.manager." .. manager_name .. ".find_package", {anonymous = true})(package_name, opt)
if result then
break
end
end
-- check result?
if result and not result.includedirs then
result = nil
end
-- ok?
return result
end
-- find package
function _find_package(manager_name, package_name, opt)
-- find package from the given package manager
local result = nil
if manager_name then
-- trace
dprint("finding %s from %s ..", package_name, manager_name)
-- find it
result = import("package.manager." .. manager_name .. ".find_package", {anonymous = true})(package_name, opt)
else
-- find package from the given custom "detect.packages.find_xxx" script
local builtin = false
local find_package = import("detect.packages.find_" .. package_name, {anonymous = true, try = true})
if find_package then
-- trace
dprint("finding %s from find_%s ..", package_name, package_name)
-- find it
result = find_package(table.join(opt, { find_package = function (...)
builtin = true
return _find_package_with_builtin_rule(...)
end}))
end
-- find package with the builtin rule
if not result and not builtin then
result = _find_package_with_builtin_rule(package_name, opt)
end
end
-- found?
if result then
-- remove repeat
result.linkdirs = table.unique(result.linkdirs)
result.includedirs = table.unique(result.includedirs)
end
-- ok?
return result
end
-- find package using the package manager
--
-- @param name the package name
-- e.g. zlib 1.12.x (try all), xmake::zlib 1.12.x, brew::zlib, brew::pcre/libpcre16, vcpkg::zlib, conan::OpenSSL/1.0.2n@conan/stable
-- @param opt the options
-- e.g. { verbose = false, force = false, plat = "iphoneos", arch = "arm64", mode = "debug", version = "1.0.x",
-- linkdirs = {"/usr/lib"}, includedirs = "/usr/include", links = {"ssl"}, includes = {"ssl.h"}
-- packagedirs = {"/tmp/packages"}, system = true}
--
-- @return {links = {"ssl", "crypto", "z"}, linkdirs = {"/usr/local/lib"}, includedirs = {"/usr/local/include"}}
--
-- @code
--
-- local package = find_package("openssl")
-- local package = find_package("openssl", {version = "1.0.*"})
-- local package = find_package("openssl", {plat = "iphoneos"})
-- local package = find_package("openssl", {linkdirs = {"/usr/lib", "/usr/local/lib"}, includedirs = "/usr/local/include", version = "1.0.1"})
-- local package = find_package("openssl", {linkdirs = {"/usr/lib", "/usr/local/lib", links = {"ssl", "crypto"}, includes = {"ssl.h"}})
--
-- @endcode
--
function main(name, opt)
-- get the copied options
opt = table.copy(opt)
opt.plat = opt.plat or config.get("plat") or os.host()
opt.arch = opt.arch or config.get("arch") or os.arch()
opt.mode = opt.mode or config.mode() or "release"
-- get package manager name
local manager_name, package_name = unpack(name:split("::", {plain = true, strict = true}))
if package_name == nil then
package_name = manager_name
manager_name = nil
else
manager_name = manager_name:lower():trim()
end
-- get package name and require version
local require_version = nil
package_name, require_version = unpack(package_name:trim():split("%s"))
opt.version = require_version or opt.version
-- find package
result = _find_package(manager_name, package_name, opt)
-- match version?
if opt.version and result then
if not (result.version and (result.version == opt.version or semver.satisfies(result.version, opt.version))) then
result = nil
end
end
-- ok?
return result
end
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