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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, Xmake Open Source Community.
--
-- @author ruki
-- @file license.lua
--
-- imports
import("core.base.object")
import("core.base.hashset")
-- get licenses
function _licenses()
local licenses = _g.licenses
if not licenses then
licenses = hashset.from({"Apache-1.1", "Apache-2.0",
"MIT",
"Zlib",
"Public Domain",
"CC0",
"LLVM",
"AFL-3.0",
"AGPL-3.0",
"LGPL-2.0", "LGPL-2.1", "LGPL-3.0",
"GPL-2.0", "GPL-3.0",
"BSD-2-Clause", "BSD-3-Clause",
"BSL-1.0",
"MPL-2.0",
"libpng-2.0",
"Python-2.0"})
_g.licenses = licenses
end
return licenses
end
-- get all licenses list
function list()
return _licenses():to_array()
end
-- normalize license
function normalize(license)
-- TODO parse and convert license strings in other formats
return license
end
-- check if the license is compatible
-- @see https://github.com/xmake-io/xmake/issues/1016
--
function compatible(target_license, library_license, opt)
opt = opt or {}
library_license = normalize(library_license)
if library_license then
target_license = normalize(target_license)
if library_license:startswith("GPL-") then
return target_license and target_license:startswith("GPL-")
elseif library_license:startswith("LGPL-") then
if target_license and target_license:startswith("LGPL-") then
return true
elseif opt.library_kind and opt.library_kind == "shared" then
-- we can only use shared library with LGPL-x
return true
else
return false, string.format("we can use shared libraries with %s or use set_license()/set_policy() to modify/disable license", library_license)
end
else
-- TODO maybe we need handle more licenses
end
end
return true
end
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