LXR and Subversion integration?

[Matt England <me...@mengland.net>]

I see this stuff here:

http://svn.haxx.se/dev/archive-2003-11/0446.shtml
http://www.endrun.org/xr/svn/source

I want to get native LXR (Linux Cross Reference) support for reading 
Subversion repos (it already does it for CVS repos) as per:

https://sourceforge.net/tracker/?func=detail&atid=390120&aid=942911&group_id=27350

Any chance the code from (<http://www.endrun.org/xr/svn/source>) can help 
get LXR to natively read Subversion like it can CVS?  I'd like to help get 
the LXR folks started on this path if they show interest.

Otherwise, I have to code-snapshot every change to my svn repos to get LXR 
views, which is doable, but I don't get any history/diff capability in LXR 
(or whatever it serves for CVS).  Another thing I may try to do is use 
svn2cvs.pl to convert every svn change to cvs and then view that through 
LXR--a bit of an inelegant solution.

-Matt

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Re: LXR and Subversion integration?

[Erik Huelsmann <eh...@gmail.com>]

On 12/24/06, Matt England <me...@mengland.net> wrote:
> I see this stuff here:
>
> http://svn.haxx.se/dev/archive-2003-11/0446.shtml
> http://www.endrun.org/xr/svn/source

> I want to get native LXR (Linux Cross Reference) support for reading
> Subversion repos (it already does it for CVS repos) as per:
> https://sourceforge.net/tracker/?func=detail&atid=390120&aid=942911&group_id=27350

That would be great!

> Any chance the code from (<http://www.endrun.org/xr/svn/source>) can help
> get LXR to natively read Subversion like it can CVS?  I'd like to help get
> the LXR folks started on this path if they show interest.

Well, I think it does exactly what you describe below: snapshot
indexing. At least, that's what I do at
http://hix.nu/subversion/lxr/source .

> Otherwise, I have to code-snapshot every change to my svn repos to get LXR
> views, which is doable, but I don't get any history/diff capability in LXR
> (or whatever it serves for CVS).  Another thing I may try to do is use
> svn2cvs.pl to convert every svn change to cvs and then view that through
> LXR--a bit of an inelegant solution.

There is one problem with the assumption in the issue tracker you
quote: the person filing it has little knowledge of the internals of
LXR: I've tried to hack real subversion support into LXR, but that
turned out harder than I thought.

The problem is that LXR is modelled around changes in *files* instead
of changesets (ie versioned trees with changes).

I had some problems adapting it because of its lack of documentation
and thought that iff it's based on ctags anyway, it'd be possible to
write a much cleaner design... (probably learning from ViewVC for
syntax coloring / diffing.)

HTH,

Erik.

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