[PATCH 0/5] Change unionfs argument handling policy

[Sergiu Ivanov]

Hello,

I am working on unionmount project, which is (at the moment) a branch
in unionfs git repository
(http://git.savannah.gnu.org/cgit/hurd/unionfs.git/). The goal of
unionmount is to mount a translator is such a way that the underlying
filesystem gets merged with the (virtual) filesystem published by the
translator.

I'm posting a series of patches which bring unionfs to an intermediate
stage on its road towards unionmount: a different handling of command
line arguments. Firstly, since unionmount basically deals with only
*two* filesystems, such command line options as ``--add'' and
``--remove'' make no sense. Secondly, unionfs has the ``--underlying''
option which enables it to list the underlying filesystem among the
merged filesystems; unionmount should have this feature enabled by
default, hence this option should be removed.

OTOH, the general command line handling policy should be different for
unionmount. It should be similar to what settrans does (and this is
very much different from how unionfs parses its command line). In this
series of patches there is one which tailors unionfs's command line
handling policy to the needs of unionmount.

Regards,
scolobb