add unpack in xmake.lua

2 files changed, 33 insertions, 3 deletions

diff --git a/xmake/core/base/os.lua b/xmake/core/base/os.lua
index 6275c4e15..296b3ec01 100644
--- a/xmake/core/base/os.lua
+++ b/xmake/core/base/os.lua
@@ -283,18 +283,21 @@ function os.match(pattern, mode)
 end
 
 -- match directories
+--
+-- @note only return {} without count to simplify code, .e.g unpack(os.dirs(""))
+--
 function os.dirs(pattern, ...)
-    return os.match(pattern, 'd')
+    return (os.match(pattern, 'd'))
 end
 
 -- match files
 function os.files(pattern)
-    return os.match(pattern, 'f')
+    return (os.match(pattern, 'f'))
 end
 
 -- match files and directories
 function os.filedirs(pattern)
-    return os.match(pattern, 'a')
+    return (os.match(pattern, 'a'))
 end
 
 -- copy files or directories
diff --git a/xmake/core/sandbox/modules/interpreter/unpack.lua b/xmake/core/sandbox/modules/interpreter/unpack.lua
new file mode 100644
index 000000000..863aac397
--- /dev/null
+++ b/xmake/core/sandbox/modules/interpreter/unpack.lua
@@ -0,0 +1,27 @@
+--!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 - 2017, TBOOX Open Source Group.
+--
+-- @author      ruki
+-- @file        unpack.lua
+--
+
+-- load module
+return unpack
+