On 2014-01-15 15:22, Volker Braun wrote:
> On Wednesday, January 15, 2014 2:36:48 AM UTC-5, Jeroen Demeyer wrote:
> > Its true that tar will extract the files as group-writeable if
> your umask allows it.
> Even if umask *does not* allow it (my umask is always 0022 and the
> ended up being group-writable).
> Are you sure?
Perhaps it only happens when running tar as root, although the
documentation doesn't mention this.
And I don't know what other versions of tar do, the safest option is to
have safe permissions in the tarball (it should be fairly easy to change
sage-sdist to do that).