Fwd: Re: Long pathnames

[Arne Babenhauserheide]

Am Sonntag 20 Juli 2008 11:52:51 schrieben Sie:
> I'm confused about your statement, because I thought Linux
> doesn't have a path length limit (besides the disk capacity)?

I did think so, too, but my system told me differently 

What I did: 

I downloaded some dynamic websites and tried to put them under version 
control. 

Sadly some algorithms made the filenames _very_ long. 

What happened: 

trouble committing 
2007-11-14/www.daskochrezept.de/kuechengeraete/index.html?param_search_string=bob+home+staubsauger+\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\"crazy+vac\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\"!
transaction abort!
rollback completed
abort: File name too 
long: /home/arne/Dokumente/Kochrezepte/.hg/store/data/2007-11-14/www.daskochrezept.de/kuechengeraete/index.html~3fparam__search__string=bob+home+staubsauger+~5c~5c~5c~5c~5c~5c~5c~5c~5c~5c~5c~5c~5c~5c~5c~5c~5c~5c~5c~5c~5c~5c~5c~5c~5c~5c~5c~5c~5c~5c~5c~22crazy+vac~5c~5c~5c~5c~5c~5c~5c~5c~5c~5c~5c~5c~5c~5c~5c~5c~5c~5c~5c~5c~5c~5c~5c~5c~5c~5c~5c~5c~5c~5c~5c~22.i

Would it be possible to shorten these long paths to 
store/data/path/beginning_of_the_filename-HASH_OVER_THE_END.i

That would preserve full streaming access for short filenames, and for long 
filenames it should mostly preserve it (it might change the order only for 
names which only differ on the hashed part). 

And the names could be adapted (transparently?) to the restrictions of the 
platform (if the full names are stored somewhere else - I don't know enough 
of the internals to be sure that this would work). 

Best wishes, 
Arne

> Windows Explorer and most others Windows tools can't handle
> path lengths longer than 260 chars.
>
> I'm currently working on an improved version of
> http://selenic.com/pipermail/mercurial-devel/2008-July/007158.html
> which builds on previously presented ideas and patches that
> were published by others (including but not limited to Matt, Jesse,
> Patrick and Peter).



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-- 
-- Weblog: http://blog.draketo.de
-- Infinite Hands: http://infinite-hands.draketo.de - singing a part of the 
history of free software. 
-- Ein Würfel System: http://1w6.org - einfach saubere (Rollenspiel-) Regeln

-- PGP/GnuPG: http://draketo.de/inhalt/ich/pubkey.txt
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