warning only once and deprecate set/add_ api

1 files changed, 32 insertions, 2 deletions

diff --git a/xmake/core/base/utils.lua b/xmake/core/base/utils.lua
index 1ee861922..6717b6045 100644
--- a/xmake/core/base/utils.lua
+++ b/xmake/core/base/utils.lua
@@ -69,8 +69,38 @@ function utils.warning(msg, ...)
     -- check
     assert(msg)
 
-    -- trace
-    print("warning: " .. string.format(msg, ...))
+    -- format message
+    msg = "warning: " .. string.format(msg, ...)
+
+    -- init warnings
+    utils._WARNINGS = utils._WARNINGS or {}
+    local warnings = utils._WARNINGS
+
+    -- the cached file path
+    local cachedpath = path.translate(xmake._PROJECT_DIR .. "/.xmake/warnings")
+
+    -- load warnings from the cached file
+    local cachedfile = io.open(cachedpath, "r")
+    if cachedfile then
+        for line in cachedfile:lines() do
+            warnings[line] = true
+        end
+    end
+
+    -- trace only once
+    if not warnings[msg] then
+        print(msg)
+        warnings[msg] = true
+    end
+
+    -- cache warnings
+    cachedfile = io.open(cachedpath, "w")
+    if cachedfile then
+        for line, _ in pairs(warnings) do
+            cachedfile:write(line .. "\n")
+        end
+        cachedfile:close()
+    end
 end
 
 -- ifelse, a? b : c