improve config cache

1 files changed, 8 insertions, 0 deletions

diff --git a/xmake/actions/config/main.lua b/xmake/actions/config/main.lua
index f6b9e4b5b..627f70853 100644
--- a/xmake/actions/config/main.lua
+++ b/xmake/actions/config/main.lua
@@ -85,6 +85,14 @@ function _need_check(changed)
         end
     end
 
+    -- xmake has been updated? force to check config again
+    -- we need clean the dirty config cache of the old version
+    if not changed then
+        if os.mtime(path.join(os.programdir(), "core", "main.lua")) > os.mtime(config.filepath()) then
+            changed = true
+        end
+    end
+
     -- update mtimes
     configcache:set("mtimes", mtimes)