modify require impl modules

1 files changed, 53 insertions, 0 deletions

diff --git a/xmake/actions/require/impl/environment.lua b/xmake/actions/require/impl/environment.lua
new file mode 100644
index 000000000..f340ab7eb
--- /dev/null
+++ b/xmake/actions/require/impl/environment.lua
@@ -0,0 +1,53 @@
+--!A cross-platform build utility based on Lua
+--
+-- Licensed to the Apache Software Foundation (ASF) under one
+-- or more contributor license agreements.  See the NOTICE file
+-- distributed with this work for additional information
+-- regarding copyright ownership.  The ASF licenses this file
+-- to you 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 - 2018, TBOOX Open Source Group.
+--
+-- @author      ruki
+-- @file        environment.lua
+--
+
+-- imports
+import("core.project.config")
+import("core.platform.environment")
+import("lib.detect.find_tool")
+import("package")
+
+-- enter environment
+--
+-- ensure that we can find some basic tools: git, make/nmake/cmake, msbuild ...
+--
+-- If these tools not exist, we will install it first.
+--
+function enter()
+
+    -- set search pathes of toolchains 
+    environment.enter("toolchains")
+
+    -- git not found? install it first
+    if not find_tool("git") then
+        package.install_packages("git")
+    end
+end
+
+-- leave environment
+function leave()
+
+    -- restore search pathes of toolchains
+    environment.leave("toolchains")
+end