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Bug#325370: ITP: cowdancer -- a COW scratch filesystem implementation in userland



Package: wnpp
Hi,

I'm planning on packaging cowdancer for Debian.
It's a scratch-filesystem implementation that is implemented
through LD_PRELOAD hacks.

It uses only the standard Linux features for implementing
a cow-like filesystem feeling; enough is implemented to 
get a reasonably useful pbuilder-cow.

It's a hack to protect file modifications on a hard-linked tree
copied through 'cp -al'; which seems to improve running time of 
pbuilder by around 25% compared to extracting base.tgz tarball 
every time.

I will be interested to know if there is known similar 
work; and also if anybody else would be interested in using this.
I have been running this for a week or so on pbuilder; 
and it looks somewhat sane (although needs some polishing work 
still).

... and yes, this is what I've been hacking on  after being
inspired by something in  DebConf5.


License: GPL
URL: http://www.netfort.gr.jp/~dancer/software/cowdancer.html

cowdancer_0.3_i386.deb
----------------------
 Package: cowdancer
 Version: 0.3
 Section: utils
 Priority: optional
 Architecture: i386
 Depends: libc6 (>= 2.3.5-1)
 Installed-Size: 84
 Maintainer: Junichi Uekawa <dancer@debian.org>
 Description: Copy-on-write directory tree utility.
  Tries to implement a shell session which has copy-on-write
  semantics upon hard-link copied directory trees.


regards,
	junichi

-- 
Junichi Uekawa, Debian Developer   http://www.netfort.gr.jp/~dancer/
183A 70FC 4732 1B87 57A5  CE82 D837 7D4E E81E 55C1 

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