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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, OpportunityLiu, SirLynix
-- @file runenvs.lua
--
-- imports
import("core.base.hashset")
-- add search directories for all dependent shared libraries on windows
function _make_runpath_on_windows(target)
local pathenv = {}
local searchdirs = hashset.new()
local function insert(dir)
if not path.is_absolute(dir) then
dir = path.absolute(dir, os.projectdir())
end
if searchdirs:insert(dir) then
table.insert(pathenv, dir)
end
end
-- recursively add targets and dep targets linkdirs
local seentargets = hashset.new()
local function insert_target(target)
if seentargets:insert(target) then
for _, linkdir in ipairs(target:get("linkdirs")) do
insert(linkdir)
end
for _, opt in ipairs(target:orderopts()) do
for _, linkdir in ipairs(opt:get("linkdirs")) do
insert(linkdir)
end
end
for _, pkg in ipairs(target:orderpkgs()) do
for _, linkdir in ipairs(pkg:get("linkdirs")) do
insert(linkdir)
end
end
for _, dep in ipairs(target:orderdeps()) do
if dep:kind() == "shared" then
insert(dep:targetdir())
end
insert_target(dep)
end
for _, toolchain in ipairs(target:toolchains()) do
local runenvs = toolchain:runenvs()
if runenvs and runenvs.PATH then
for _, env in ipairs(path.splitenv(runenvs.PATH)) do
insert(env)
end
end
end
end
end
insert_target(target)
return pathenv
end
-- flatten envs ({PATH = {"A", "B"}} => {PATH = "A;B"})
function _flatten_envs(envs)
local flatten_envs = {}
for name, values in pairs(envs) do
flatten_envs[name] = path.joinenv(values)
end
return flatten_envs
end
-- join addenvs and setenvs in a common envs table
function join(addenvs, setenvs)
local envs = os.joinenvs(addenvs and _flatten_envs(addenvs) or {})
if setenvs then
envs = os.joinenvs(envs, _flatten_envs(setenvs))
end
return envs
end
-- recursively add package envs
function _add_target_pkgenvs(addenvs, target, targets_added)
if targets_added[target:name()] then
return
end
targets_added[target:name()] = true
local pkgenvs = target:pkgenvs()
if pkgenvs then
for name, values in pairs(pkgenvs) do
local values = path.splitenv(values)
local oldenvs = addenvs[name]
if oldenvs then
table.join2(oldenvs, values)
else
addenvs[name] = values
end
end
end
for _, dep in ipairs(target:orderdeps()) do
_add_target_pkgenvs(addenvs, dep, targets_added)
end
end
-- deduplicate envs
-- @see https://github.com/xmake-io/xmake/issues/5184
function _dedup_envs(envs)
local envs_new = {}
for k, v in pairs(envs) do
if type(v) == "table" then
envs_new[k] = table.unique(v)
else
envs_new[k] = v
end
end
return envs_new
end
function make(target)
-- add run environments
local setenvs = {}
local addenvs = {}
local runenvs = target:get("runenvs")
if runenvs then
for name, values in pairs(runenvs) do
addenvs[name] = table.wrap(values)
end
end
local runenv = target:get("runenv")
if runenv then
for name, value in pairs(runenv) do
setenvs[name] = table.wrap(value)
if addenvs[name] then
utils.warning(format("both add_runenvs and set_runenv called on environment variable \"%s\", the former one will be ignored.", name))
addenvs[name] = nil
end
end
end
-- add package run environments
_add_target_pkgenvs(addenvs, target, {})
-- add search directories for all dependent shared libraries on windows
if target:is_plat("windows") or (target:is_plat("mingw") and is_host("windows")) then
local pathenv = addenvs["PATH"] or setenvs["PATH"]
local runpath = _make_runpath_on_windows(target)
if pathenv == nil then
addenvs["PATH"] = runpath
else
table.join2(pathenv, runpath)
end
end
-- deduplicate envs
if addenvs then
addenvs = _dedup_envs(addenvs)
end
if setenvs then
setenvs = _dedup_envs(setenvs)
end
return addenvs, setenvs
end
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