[svn.haxx.se] · SVN Dev · SVN Users · SVN Org · TSVN Dev · TSVN Users · Subclipse Dev · Subclipse Users · this month's index

Re: svn bisect

From: Julian Foad <julian.foad_at_wandisco.com>
Date: Tue, 21 Jun 2011 09:35:54 +0100

Here's one I wrote a few months back. I didn't send it here because I
didn't think it was a serious proposition, just something fun to
exercise my brain cells. :-)

One thing "git bisect" does that's not implemented here is to support a
third response, "unable to test", and skip such revisions. I tried
thinking about an algorithm to do that nicely, but didn't get anywhere
really concrete.

- Julian

Stefan Sperling wrote:
> On Tue, Jun 21, 2011 at 01:15:06PM +0530, Arwin Arni wrote:
> > Hi All,
> >
> > I am currently trying to implement "svn bisect" subcommand. Yes, I
> > know there are some good scripts out there that work, but it's not
> > part of our API. I figured this would be a decent addition to our
> > code. Here are a few things I wanted to ask the community:
> >
> > 1. Would it be better if the command ran as a single process
> > throughout the bisect operation and keep track of things in memory,
> > or should it work like the scripts that are out there which keep
> > track of things on disk (in a persistent file)?
>
> Depends on your requirements. I suppose bisect is supposed to
> be restartable? If so it would probably make sense to stick
> state somewhere into wc.db?
>
> > 2. For the scripts that are currently out there, the 'probe script'
> > runs in the environment in which the bisect script was run. Is it
> > safe to have a subcommand that runs an external script? Is there a
> > precedent to this kind of behaviour?
>
> The script could delete files, trash the working copy, whatever.
> But it is, after all, supplied by the user doing the bisection, right?
> So I don't think there is any difference here to existing mechanisms
> that invoke diff commands and the like. Those are equally "unsafe".
>
> > 3. Will this feature be considered at all (if it is any good) or am
> > I simply doing something to exercise my brain cells?
>
> I would consider it useful.
>
> Since you have some track record in getting patches committed,
> I'd like to offer you commit access to a branch in our repository
> so you work on this there if you like.

Received on 2011-06-21 10:36:31 CEST

This is an archived mail posted to the Subversion Dev mailing list.