Unable to rewrite .app file error

[rcc]

===> Unable to rewrite .app file <release_build_directory>/lib/public_key-1.4/ebin/public_key.app due to {error, eacces}

I'm getting this new error as of commit 3a5137a9dca04c02b52d787aaec6630e721d0e08

I'm still digging into why, but it appears to be due to this public_key app being part of the system's installed libraries. I'm not using public_key directly, but believe it is a dependency of one of my dependencies.

[rcc]

The permissions in the public_key app's ebin directory are identical between the working and non-working builds. So possibly a new access is trying to happen that's not valid.

[rcc]

I've confirmed that if I manually fix the application dependency list to put kernel, stdlib first, I no longer get the error. For me the file is at /usr/local/Cellar/erlang/19.3/lib/erlang/lib/public_key-1.4/ebin/public_key.app

Now I'm hitting the same error on the next library, ssl-8.1.1.

Looks like the new code is causing the reordered application dependency list is trying to be written back to the .app file, but all the permissions are read only.

[rcc]

it's causing this case statement to trigger in rlx_prv_assembler.erl

    case write_file_if_contents_differ(AppFile, Spec) of
        ok -> ok;
        Error -> ?RLX_ERROR({rewrite_app_file, AppFile, Error})
    end.

[lrascao]

Thanks for the investigation, do you mind trying #585 and see if it fixes the issue?

[rcc]

Confirmed. That change fixes it for me.

[lrascao]

closing via #585