add has_package

2 files changed, 37 insertions, 1 deletions

diff --git a/xmake/core/project/project.lua b/xmake/core/project/project.lua
index 1e0403fc3..ec68d3ba1 100644
--- a/xmake/core/project/project.lua
+++ b/xmake/core/project/project.lua
@@ -783,7 +783,6 @@ end
 
 -- get requires info
 function project.requires()
-
     if not project._REQUIRES then
         local requires, errors = project._load_requires()
         if not requires then
diff --git a/xmake/core/sandbox/modules/has_package.lua b/xmake/core/sandbox/modules/has_package.lua
new file mode 100644
index 000000000..7873a5d26
--- /dev/null
+++ b/xmake/core/sandbox/modules/has_package.lua
@@ -0,0 +1,37 @@
+--!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 - 2019, TBOOX Open Source Group.
+--
+-- @author      ruki
+-- @file        has_package.lua
+--
+
+-- return module
+return function (...)
+    require("sandbox/modules/import/core/sandbox/module").import("core.project.project")
+    local requires = project.requires()
+    if requires then
+        for _, name in ipairs(table.join(...)) do
+            local pkg = requires[name]
+            if pkg and pkg:enabled() then
+                return true
+            end
+        end
+    end
+end