Symlink files in priv/ folder become files on `mix release`

[danicuki]

Today, when we generate a mix release of any application using this library, we get duplicated redundant files (making this lib alone occupy almost 23MB).

As described in this issue and answered by @josevalim, it is advisable to put final binaries in a directory other than priv, so the symlinks are not converted to files when releases are created.

[qzhuyan]

thanks for reporting,

we have similar issues in rebar3 and our workaround is

quic/build.sh

Line 76 in 3291510

remove_dups() {

maybe you could use it with mix?

symlink files and the files with vsn suffix are there for supporting hot upgrade. I think it should be fixed in mix.

I will see what I can do.