From 742e916cbd2a2d72ec8e7f59b3ca02e137d0bae2 Mon Sep 17 00:00:00 2001
From: ruki <waruqi@gmail.com>
Date: Fri, 23 Apr 2021 00:48:07 +0800
Subject: improve target sourcefiles

---
 xmake/core/language/language.lua | 10 ++++++----
 xmake/core/project/target.lua    | 18 ++++++++++++------
 2 files changed, 18 insertions(+), 10 deletions(-)

diff --git a/xmake/core/language/language.lua b/xmake/core/language/language.lua
index 2b3e9d813..4815d47db 100644
--- a/xmake/core/language/language.lua
+++ b/xmake/core/language/language.lua
@@ -260,10 +260,12 @@ function language.load(name)
 
     -- load all languages
     if not name then
-        for _, name in ipairs(table.wrap(os.match(path.join(language._directory(), "*"), true))) do
-            local instance, errors = language.load(path.basename(name))
-            if not instance then
-                return nil, errors
+        if not language._LANGUAGES then
+            for _, name in ipairs(table.wrap(os.match(path.join(language._directory(), "*"), true))) do
+                local instance, errors = language.load(path.basename(name))
+                if not instance then
+                    return nil, errors
+                end
             end
         end
         return language._LANGUAGES
diff --git a/xmake/core/project/target.lua b/xmake/core/project/target.lua
index 531ffb887..356358fab 100644
--- a/xmake/core/project/target.lua
+++ b/xmake/core/project/target.lua
@@ -1180,6 +1180,7 @@ function _instance:sourcefiles()
     local sourcefiles_deleted = {}
     local sourcefiles_inserted = {}
     local deleted_count = 0
+    local targetcache = memcache.cache("core.project.target")
     for _, file in ipairs(table.wrap(files)) do
 
         -- mark as deleted files?
@@ -1189,13 +1190,18 @@ function _instance:sourcefiles()
             deleted = true
         end
 
-        -- find source files
-        local results = os.files(file)
-        if #results == 0 then
-            -- attempt to find source directories if maybe compile it as directory with the custom rules
-            if #self:filerules(file) > 0 then
-                results = os.dirs(file)
+        -- find source files and try to cache the matching results of os.match across targets
+        -- @see https://github.com/xmake-io/xmake/issues/1353
+        local results = targetcache:get2("sourcefiles", file)
+        if not results then
+            results = os.files(file)
+            if #results == 0 then
+                -- attempt to find source directories if maybe compile it as directory with the custom rules
+                if #self:filerules(file) > 0 then
+                    results = os.dirs(file)
+                end
             end
+            targetcache:set2("sourcefiles", file, results)
         end
         if #results == 0 then
             local sourceinfo = (self:get("__sourceinfo_files") or {})[file] or {}
-- 
cgit v1.3.1