add environment

1 files changed, 79 insertions, 0 deletions

diff --git a/xmake/core/platform/environment.lua b/xmake/core/platform/environment.lua
new file mode 100644
index 000000000..8c8569674
--- /dev/null
+++ b/xmake/core/platform/environment.lua
@@ -0,0 +1,79 @@
+--!The Automatic Cross-platform Build Tool
+-- 
+-- XMake is free software; you can redistribute it and/or modify
+-- it under the terms of the GNU Lesser General Public License as published by
+-- the Free Software Foundation; either version 2.1 of the License, or
+-- (at your option) any later version.
+-- 
+-- XMake is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU Lesser General Public License for more details.
+-- 
+-- You should have received a copy of the GNU Lesser General Public License
+-- along with XMake; 
+-- If not, see <a href="http://www.gnu.org/licenses/"> http://www.gnu.org/licenses/</a>
+-- 
+-- Copyright (C) 2015 - 2016, ruki All rights reserved.
+--
+-- @author      ruki
+-- @file        environment.lua
+--
+
+-- define module
+local environment = environment or {}
+
+-- load modules
+local platform  = require("platform/platform")
+
+-- load the given environment from the given platform
+function environment.load(plat)
+
+    -- load platform
+    local instance, errors = platform.load(plat)
+    if not instance then
+        return nil, errors
+    end
+
+    -- get environment
+    return instance:environment()
+end
+
+-- enter the environment for the current platform
+function environment.enter(name)
+
+    -- load the environment module
+    local module, errors = environment.load(plat)
+    if not module and errors then
+        return false, errors
+    end
+
+    -- enter it
+    if module then
+        module.enter(name)
+    end
+
+    -- ok
+    return true
+end
+
+-- leave the environment for the current platform
+function environment.leave(name)
+
+    -- load the environment module
+    local module, errors = environment.load(plat)
+    if not module and errors then
+        return false, errors
+    end
+
+    -- leave it
+    if module then
+        module.leave(name)
+    end
+
+    -- ok
+    return true
+end
+
+-- return module
+return environment