Re: [wishlist] nfs/cifs, mount.svnfs interfaces

[Branko Čibej <br...@xbc.nu>]

Mapping the reposiutory to a filesystem has been on my wishlist for a 
long tiime -- practically from day 1 -- but I decided that to get any 
kind of consistencyfrom an autoversioning-like writable implementation, 
you need at least exclusive lockingin Subversion. So I'll wait until we 
get that before going any further with FS mapping.


Daniel_Patterson@national.com.au wrote:

>Hello all,
>
>  An idea germinated earlier today, I thought I'd drop this one to the
>mailing list.  I do not have
>  time to implement it myself, but someone may pick it up and run with it.
>
>  It might be nice to be able to access the Subversion filesystem using
>various already
>  existing clients.  I envisage this being read-only, or autoversioned
>(al-la what we have with WebDAV)
>  access.
>
>  This can kind of currently be done with the WebDAV interface, using Web
>Folders on Win32 and DavFS on
>  Linux.  I am imagining a stack of other interfaces, such as the
>following:
>
>  1.  A CIFS method of accessing the svn repository.  Samba has a VFS layer
>that allows you to
>      create a programmatic filesystem that could talk to a subversion
>repository and serve it out
>      as a CIFS share to CIFS clients (i.e. Win32 boxen).
>
>  2. An NFS server that can talk to a Subversion repository, allowing you
>to mount your subversion repository
>      or some part of it onto Unix boxes.
>
>  3.  A local filesystem kernel driver that would let you do something
>like:
>
>      mount -t svn file:///var/svn/repos/myrepos/trunk /opt/myapp
>
>  Uses I can see for tools such as these:
>
>    a) Like we have with WebDAV, allow svn-clientless access to the
>repository, without requiring WebDAV.
>    b) Allow "live" views of various bits of the repository, i.e. commits
>to trunk/ appear immedietly in the
>         OS filesystem, which can then be served to end users (i.e. an
>Apache website, etc).
>
>  This thought was partly motivated by Rational ClearCase and it's MVFS
>filesystem driver and the "Dynamic Views"
>  feature.  With Clearcase in that configuration, network traffic is heavy,
>I don't think Subversion would be
>  any worse.
>
>  Understandably, I imagine there are lots of things to consider (how to
>read file data block-wise, locking, etc), I'm
>  leaving it up to the implementor to work that stuff out (*hand wavy
>brush-off*).
>
>daniel
>  
>
-- Brane


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