on_load阶段添加的文件如何支持缓存呢？

[Zmmfly]

这个阶段根据条件添加的文件总是会重复编译，很消耗时间

尝试使用 set_policy("build.ccache", true) 也不起作用

[waruqi]

我不知道你说的重复编译，指的是什么，增量编译失效？ccache 失效？

不管哪种，我这都正常 没法复现。

target("test")
    set_kind("binary")
    add_files("src/*.cpp")
    on_load(function (target)
        target:add("files", "test/test.cpp")
    end)

ruki:test ruki$ xmake
[ 19%]: cache compiling.release src/main.cpp
[ 19%]: cache compiling.release test/test.cpp
[ 56%]: linking.release test
[100%]: build ok, spent 2.295s
ruki:test ruki$ xmake             <--------------- 增量编译 works，没有重编
[100%]: build ok, spent 0.031s

ruki:test ruki$ xmake -rvD
[ 19%]: cache compiling.release src/main.cpp
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++ -c -Qunused-arguments -arch x86_64 -target x86_64-apple-macos15.2 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.2.sdk -fvisibility=hidden -fvisibility-inlines-hidden -O3 -DNDEBUG -o build/.objs/test/macosx/x86_64/release/src/main.cpp.o src/main.cpp
[ 19%]: cache compiling.release test/test.cpp
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++ -c -Qunused-arguments -arch x86_64 -target x86_64-apple-macos15.2 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.2.sdk -fvisibility=hidden -fvisibility-inlines-hidden -O3 -DNDEBUG -o build/.objs/test/macosx/x86_64/release/test/test.cpp.o test/test.cpp
[ 56%]: linking.release test
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++ -o build/macosx/x86_64/release/test build/.objs/test/macosx/x86_64/release/src/main.cpp.o build/.objs/test/macosx/x86_64/release/test/test.cpp.o -arch x86_64 -target x86_64-apple-macos15.2 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX15.2.sdk -lz -Wl,-x -Wl,-dead_strip

build cache stats:
cache directory: /private/tmp/test/build/.build_cache
cache hit rate: 100%
cache hit: 2 <----------------------------------- 两个 cpp 都命中了 cache，也没重编。
cache hit total time: 0.006s
cache miss: 0
cache miss total time: 0.000s
new cached files: 0
remote cache hit: 0
remote new cached files: 0
preprocess failed: 0
compile fallback count: 0
compile total time: 0.000s

[100%]: build ok, spent 0.521s

[Zmmfly]

可能是我理解有一些差异，看现象的话符合增量编译失效，二次编译还是会输出具体编译了哪些文件；这边用得比较复杂，晚点我整理一个最小可复现工程出来