improve fetchinfo

1 files changed, 50 insertions, 0 deletions

diff --git a/xmake/modules/private/utils/package.lua b/xmake/modules/private/utils/package.lua
new file mode 100644
index 000000000..72def050a
--- /dev/null
+++ b/xmake/modules/private/utils/package.lua
@@ -0,0 +1,50 @@
+--!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, TBOOX Open Source Group.
+--
+-- @author      ruki
+-- @file        package.lua
+--
+
+-- concat packages
+function _concat_packages(a, b)
+    local result = table.copy(a)
+    for k, v in pairs(b) do
+        local o = result[k]
+        if o ~= nil then
+            v = table.join(o, v)
+        end
+        result[k] = v
+    end
+    for k, v in pairs(result) do
+        if k == "links" or k == "syslinks" or k == "frameworks" or k == "ldflags" or k == "shflags" then
+            if type(v) == "table" and #v > 1 then
+                -- we need to ensure link orders when removing repeat values
+                v = table.reverse_unique(v)
+            end
+        else
+            v = table.unique(v)
+        end
+        result[k] = v
+    end
+    return result
+end
+
+-- set concat for find_package/fetch info
+function fetchinfo_set_concat(fetchinfo)
+    if fetchinfo and type(fetchinfo) == "table" then
+        debug.setmetatable(fetchinfo, {__concat = _concat_packages})
+    end
+end