The latest release cannot be extracted with the --same-owner option

[Iksas]

Expected behavior:

The release tarball can be extracted with the --same-owner option. This works fine in release PPI-1.278:

wget https://cpan.metacpan.org/authors/id/O/OA/OALDERS/PPI-1.278.tar.gz
gzip -dk PPI-1.278.tar.gz
tar --same-owner -xvf PPI-1.278.tar

However, in release PPI-1.279, the following steps fail:

wget http://www.cpan.org/authors/id/M/MI/MITHALDU/PPI-1.279.tar.gz
gzip -dk PPI-1.279.tar.gz
tar --same-owner -xvf PPI-1.279.tar

Here's a sample of the resulting errors:

tar --same-owner -xvf PPI-1.279.tar
[...]
PPI-1.279/xt/DepReqs.pm
tar: PPI-1.279/xt/DepReqs.pm: Cannot change ownership to uid 197609, gid 197609: Operation not permitted
PPI-1.279/xt/meta.t
tar: PPI-1.279/xt/meta.t: Cannot change ownership to uid 197609, gid 197609: Operation not permitted
PPI-1.279/xt/pmv.t
tar: PPI-1.279/xt/pmv.t: Cannot change ownership to uid 197609, gid 197609: Operation not permitted
PPI-1.279/xt/release/
PPI-1.279/xt/release/changes_has_content.t
tar: PPI-1.279/xt/release/changes_has_content.t: Cannot change ownership to uid 197609, gid 197609: Operation not permitted
tar: PPI-1.279/xt/release: Cannot change ownership to uid 197609, gid 197609: Operation not permitted
tar: PPI-1.279/xt: Cannot change ownership to uid 197609, gid 197609: Operation not permitted
tar: PPI-1.279: Cannot change ownership to uid 197609, gid 197609: Operation not permitted
tar: Exiting with failure status due to previous errors

This leads to problems when pulling certain docker images with podman, as described in linuxserver/docker-smokeping#181.

[wchristian]

Hm, seems there are some platform-specific aspects to the release process. I'll look into it tomorrow.

[wchristian]

Ok, i looked at it and i need more explanations.

I compared the permissions on the files and the only thing in 1.279 that's missing is some files don't have world-read perms; and the owner names differ.

I don't understand how that leads to tar being unable to change ownership.

I am also baffled as to why you would try to unpack a tarball while retaining an ownership user that doesn't exist on your system.