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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 SirLynix
-- @file find_emsdk.lua
--
-- imports
import("core.base.semver")
import("core.base.option")
import("core.base.global")
import("core.project.config")
import("core.cache.detectcache")
import("lib.detect.find_file")
-- find sdk directory
function _find_emsdkdir(sdkdir)
local paths = {}
if sdkdir then
table.insert(paths, sdkdir)
end
table.insert(paths, "$(env EMSDK)")
if is_host("linux") then
table.join2(paths, {"/usr/share/emscripten/", "/usr/lib/emscripten/"})
end
local emsdk = find_file("emsdk.py", paths, {suffixes = subdirs})
if emsdk then
return path.directory(emsdk)
end
local emcc_py = find_file("emcc.py", paths, {suffixes = subdirs})
if emcc_py then
return path.directory(emcc_py)
end
end
-- find emsdk
function _find_emsdk(sdkdir)
-- find sdk root directory
sdkdir = _find_emsdkdir(sdkdir)
if not sdkdir then
return {}
end
-- find emscripten toolchain directory
local emscripten
local subdirs = {}
table.insert(subdirs, path.join("*", "emscripten"))
local emcc = find_file("emcc", sdkdir, {suffixes = subdirs})
emcc = emcc or find_file("emcc.py", sdkdir)
if emcc then
emscripten = path.directory(emcc)
end
return {sdkdir = sdkdir, emscripten = emscripten}
end
-- find emsdk directory
--
-- @param sdkdir the emsdk directory
-- @param opt the argument options, e.g. {force = true}
--
-- @return the sdk toolchains. e.g. {sdkdir = ..}
--
-- @code
--
-- local sdk = find_emsdk("~/emsdk")
--
-- @endcode
--
function main(sdkdir, opt)
-- init arguments
opt = opt or {}
-- attempt to load cache first
local key = "detect.sdks.find_emsdk"
local cacheinfo = detectcache:get(key) or {}
if not opt.force and cacheinfo.sdk and cacheinfo.sdk.sdkdir and os.isdir(cacheinfo.sdk.sdkdir) then
return cacheinfo.sdk
end
-- find sdk
local sdk = _find_emsdk(sdkdir or config.get("emsdk") or global.get("emsdk"))
if sdk and sdk.sdkdir then
config.set("emsdk", sdk.sdkdir, {force = true, readonly = true})
if opt.verbose or option.get("verbose") then
cprint("checking for emsdk directory ... ${color.success}%s", sdk.sdkdir)
end
else
if opt.verbose or option.get("verbose") then
cprint("checking for emsdk directory ... ${color.nothing}${text.nothing}")
end
end
-- save to cache
cacheinfo.sdk = sdk or false
detectcache:set(key, cacheinfo)
return sdk
end
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