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Re: [PATCH] git-svn: allow disabling expensive broken symlink checks

From
EWEric Wong <normalperson@yhbt.net>
Date
Feb 5, 2009, 07:42 UTC
Message-ID
<20090205074215.GA24887@dcvr.yhbt.net>
In-Reply-To
<20090203191021.GB2077@dcvr.yhbt.net>
Eric Wong <normalperson@yhbt.net> wrote:
Show 19 quoted lines
> Junio C Hamano <gitster@pobox.com> wrote:
> > Eric Wong <normalperson@yhbt.net> writes:
> > 
> > >> How common is this breakage in people's subversion repositories that
> > >> dbc6c74d (git-svn: handle empty files marked as symlinks in SVN,
> > >> 2009-01-11) works around?
> > >
> > > It's not common at all.  Some broken Windows clients were able to
> > > create it.
> > >
> > >> What's the way to recover from a broken import, when the subversion
> > >> repository does have such a breakage, and the user used git-svn that
> > >> predates dbc6c74?  Is it very involved, and it is much better to have the
> > >> safety by default than to force everybody else who interacts with
> > >> non-broken subversion repository suffer from this performance penalty?
> > >
> > > Previously, git-svn would just stop importing and refuse to continue.
> > > So allowing the user to enable it would be a problem; too.  I don't
> > > recall the error being easy to distinguish from other errors.

Actually I was wrong on git-svn refusing to continue. git-svn will create a regular 100644 file with "link path/to/dest" as its contents. git-svn only croaks on checksum differences with the blob itself; it does not have an easy way to verify the mode change => 120000 if it happened previously.

Show 5 quoted lines
> > >> Because the fix (that is broken from the performance angle) is relatively
> > >> recent, I am wondering if it makes more sense to turn it off by default,
> > >> and allow people with such a broken history to optionally turn it on.
> > >
> > > I'm considering disabling it by default, too.

I'm considering keeping it on by default given the above (re)discovery...

-- 
Eric Wong
Previous: Eric WongNext: Junio C Hamano
Message 10 of 11 in “"git svn fetch" slow”
  1. Markus HeidelbergJan 31, 2009
  2. Sverre RabbelierJan 31, 2009
  3. Markus HeidelbergJan 31, 2009
  4. Sverre RabbelierJan 31, 2009
  5. git-svn: allow disabling expensive broken symlink checksEric Wong, Feb 1, 2009
  6. Junio C HamanoFeb 2, 2009
  7. Eric WongFeb 3, 2009
  8. Junio C HamanoFeb 3, 2009
  9. Eric WongFeb 3, 2009
  10. Eric WongFeb 5, 2009
  11. Junio C HamanoFeb 5, 2009

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