Changes to symlinked files are not picked up by the change detector

[cbarrete]

Say I have the following build file:

cxx_binary(
    name = "original",
    srcs = ["main.cpp"],
)

cxx_binary(
    name = "symlink",
    srcs = ["symlink.cpp"],
)

where

> ls -l main.cpp symlink.cpp 
-rw-r--r-- 1 user user 58 Apr 17 17:36 main.cpp
lrwxrwxrwx 1 user user  8 Apr 17 17:37 symlink.cpp -> main.cpp

A change to main.cpp will only output original as being affected, not symlink. I assume that this is because the change detector only considers the files in changes.txt/the VCS dump, which don't consider symlinks?

Is there a recommended way to deal with this?

[James534]

Hey, sorry for the very late response.

We cant fix this on our side due to how buck2 interacts with symlinks. I would suggest asking the buck2 project instead https://github.com/facebook/buck2/issues