Nicolas Williams wrote:
> On Thu, Mar 06, 2008 at 11:17:26PM +0100, maurilio longo wrote:
>> A script or program that relies upon a case sensitive filesystem could
>> face bigger problems than mv not changing a file name.
>>
>> I think that now that zfs can have a case insensitive mode all the
>> programs which can be executed on such a filesystem need to be aware
>> of this fact.
>
> It's not just ZFS. The NFS client too supports case insensitivity where
> the share in question does too. And the SMB client supports case
> insensitivity as well.
>
> But scripts that could have issues with this will not necessarily be
> fixed by having mv(1) and friends become aware of case-insensitivity.
>
> In fact, scripts that want to make case-insensitive string comparisons
> that are compatible with what the underlying filesystem supports will be
> in trouble. It would be nice if we have a file-equal(1) or something,
> that given two names tells you if they refer to the same exact file
> and/or whether one is a symlink or link to the other, or whether they
> are in fact the same name.
>
>>> If the file system is case-insensitive, why do you care about the
>>> on-disk case? And if you do care, it's easy to change it.
>
> Alan,
>
> The filesystem is case-insensitive, but it's also case-preserving, and
> for good reason: users evidently care about the canonical/display case
> of their file names.
>
>> I care because mylasttriptoeurope.doc is uglier than
>> MyLastTripToEurope.doc (at least for me :)).
>
> See what I mean? :)
zfs create -o casesensitivity=mixed ...
Alan
>> But mv is not my real concern, it was just an example, I was looking
>> for a way to use samba (not Sun's CIFS server) on such a filesystem to
>> overcome the way samba emulates case-insensitiveness on a
>> case-sensitive filesystem.
>
> Why not use the native OpenSolaris SMB file service?
>
>> So, while I'm aware that it is samba which should be changed to use
>> such a kind of filesystem (maybe it was already changed to work on mac
>> os x), samba is just a program, like mv, which needs to be made aware
>> that it is running on a case insensitive filesystem.
>
> That seems right.
>
> Nico
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