Rob Herring <r...@kernel.org> wrote:
> On Mon, Nov 8, 2021 at 3:27 PM Eric Wong <e...@80x24.org> wrote:
> >
> > Rob Herring <r...@kernel.org> wrote:
> > > On Mon, Nov 8, 2021 at 2:22 PM Konstantin Ryabitsev
> > > > I think 's:patch AND nq:diff' is a good option here.
> > >
> > > Not even close really. That mainly finds my replies with 'diff' in
> > > them. I'm not sure why, but it misses most actual patches:
> > >
> > > https://lore.kernel.org/all/?q=s%3Apatch+nq%3Adiff+f%3Arobh%40kernel.org
> >
> > Actually, it looks like nq:diff never works.  The diff indexer
> > skips right over 'diff --git a/... b/...' lines :x
> 
> Never works for 'diff' being a patch? Because it works very well
> finding all the other cases.

Yeah, the index_diff() code path ignored the "diff --git" phrase
before this patch.

> > The following should fix it, but reindexing is necessary.
> > ---------8<----------
> > Subject: [PATCH] searchidx: index "diff --git a/... b/..." headers
> >
> > While we do detailed indexing of git diffs, the header itself
> > was failing and queries like 'nq:diff' would not work.
> 
> Any thoughts on supporting an 'is a patch' type query?

I think 's:patch' should be sufficient, don't think there's
many false-positives on that front, actually.

With this fix, nq:"diff --git" should also be working across
https://yhbt.net/lore/ in about 40 hours (whenever reindex
finishes)

I'm not sure if there needs to be a specific term to index
patches on; maybe there is.  There's still a lot of Xapian
we're not using, yet...
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