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From: Patrick Steinhardt <ps@pks.im>
To: Jeff King <peff@peff.net>
Cc: git@vger.kernel.org,
	Christian Couder <christian.couder@gmail.com>,
	Taylor Blau <me@ttaylorr.com>
Subject: Re: [PATCH v2 8/8] rev-list: allow filtering of provided items
Date: Fri, 9 Apr 2021 12:59:41 +0200	[thread overview]
Message-ID: <YHAznTddwG/ej4aS@ncase> (raw)
In-Reply-To: <YGyinyL2UU421hoX@coredump.intra.peff.net>

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On Tue, Apr 06, 2021 at 02:04:15PM -0400, Jeff King wrote:
> On Mon, Mar 15, 2021 at 02:15:05PM +0100, Patrick Steinhardt wrote:
> 
> > When providing an object filter, it is currently impossible to also
> > filter provided items. E.g. when executing `git rev-list HEAD` , the
> > commit this reference points to will be treated as user-provided and is
> > thus excluded from the filtering mechanism. This makes it harder than
> > necessary to properly use the new `--filter=object:type` filter given
> > that even if the user wants to only see blobs, he'll still see commits
> > of provided references.
> > 
> > Improve this by introducing a new `--filter-provided` option to the
> > git-rev-parse(1) command. If given, then all user-provided references
> > will be subject to filtering.
> 
> I think this option is a good thing to have.
> 
> The name seems a little confusing to me, as I can read is as both
> "please filter the provided objects" and "a filter has been provided".
> I guess "--filter-print-provided" would be more clear. And also the
> default, so you'd want "--no-filter-print-provided". That's kind of
> clunky, though. Maybe "--filter-omit-provided"?

Hum, "--filter-omit-provided" doesn't sound good to me, either. Omit to
me sounds like it'd omit filtering provided items, but we're doing
the reverse thing.

How about "--filter-provided-revisions"? Verbose, but at least it cannot
be confused with a filter being provided.

> > @@ -694,6 +698,16 @@ int cmd_rev_list(int argc, const char **argv, const char *prefix)
> >  			return show_bisect_vars(&info, reaches, all);
> >  	}
> >  
> > +	if (filter_options.filter_wants) {
> > +		struct commit_list *c;
> > +		for (i = 0; i < revs.pending.nr; i++) {
> > +			struct object_array_entry *pending = revs.pending.objects + i;
> > +			pending->item->flags |= NOT_USER_GIVEN;
> > +		}
> > +		for (c = revs.commits; c; c = c->next)
> > +			c->item->object.flags |= NOT_USER_GIVEN;
> > +	}
> 
> You store the flag inside the filter_options struct, which implies to me
> that it's something that could be applied per-filter (at least in
> theory; the command line option doesn't allow us to distinguish).
> 
> But here you treat it as a global flag that munges the NOT_USER_GIVEN
> flags. Given that it's inside the filter_options struct, and that you
> propagate it via transform_to_combine_type(), I'd have expected the LOFC
> code to look at the flag and decide to ignore the whole user-given
> concept completely.
> 
> To be clear, I don't mind at all having it as a global that applies to
> all filters. I don't think the flexibility buys us anything. But since
> it only applies to rev-list, why not just make it a global option within
> rev-list?
[snip]

Fair point. This probably stems from the confusion where I initially
didn't realize that the filter_options is not a "global" options
structure, but in fact the filter itself already. That's also why there
had been the initial bug where converting filter options into a combined
filter led to `filter_wants` being dropped.

In any case, the resulting code with it being global to rev-list.c
instead of part of the options is a lot cleaner.

Patrick

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  reply	other threads:[~2021-04-09 11:00 UTC|newest]

Thread overview: 97+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-01 12:20 [PATCH 0/7] rev-parse: implement object type filter Patrick Steinhardt
2021-03-01 12:20 ` [PATCH 1/7] revision: mark commit parents as NOT_USER_GIVEN Patrick Steinhardt
2021-03-01 12:20 ` [PATCH 2/7] list-objects: move tag processing into its own function Patrick Steinhardt
2021-03-01 12:20 ` [PATCH 3/7] list-objects: support filtering by tag and commit Patrick Steinhardt
2021-03-01 12:20 ` [PATCH 4/7] list-objects: implement object type filter Patrick Steinhardt
2021-03-01 12:20 ` [PATCH 5/7] pack-bitmap: " Patrick Steinhardt
2021-03-01 12:20 ` [PATCH 6/7] pack-bitmap: implement combined filter Patrick Steinhardt
2021-03-01 12:21 ` [PATCH 7/7] rev-list: allow filtering of provided items Patrick Steinhardt
2021-03-10 21:39 ` [PATCH 0/7] rev-parse: implement object type filter Jeff King
2021-03-11 14:38   ` Patrick Steinhardt
2021-03-11 17:54     ` Jeff King
2021-03-15 11:25   ` Patrick Steinhardt
2021-03-10 21:58 ` Taylor Blau
2021-03-10 22:19   ` Jeff King
2021-03-11 14:43     ` Patrick Steinhardt
2021-03-11 17:56       ` Jeff King
2021-03-15 13:14 ` [PATCH v2 0/8] " Patrick Steinhardt
2021-03-15 13:14   ` [PATCH v2 1/8] uploadpack.txt: document implication of `uploadpackfilter.allow` Patrick Steinhardt
2021-04-06 17:17     ` Jeff King
2021-03-15 13:14   ` [PATCH v2 2/8] revision: mark commit parents as NOT_USER_GIVEN Patrick Steinhardt
2021-04-06 17:30     ` Jeff King
2021-04-09 10:19       ` Patrick Steinhardt
2021-03-15 13:14   ` [PATCH v2 3/8] list-objects: move tag processing into its own function Patrick Steinhardt
2021-04-06 17:39     ` Jeff King
2021-03-15 13:14   ` [PATCH v2 4/8] list-objects: support filtering by tag and commit Patrick Steinhardt
2021-03-15 13:14   ` [PATCH v2 5/8] list-objects: implement object type filter Patrick Steinhardt
2021-04-06 17:42     ` Jeff King
2021-03-15 13:14   ` [PATCH v2 6/8] pack-bitmap: " Patrick Steinhardt
2021-04-06 17:48     ` Jeff King
2021-03-15 13:14   ` [PATCH v2 7/8] pack-bitmap: implement combined filter Patrick Steinhardt
2021-04-06 17:54     ` Jeff King
2021-04-09 10:31       ` Patrick Steinhardt
2021-04-09 15:53         ` Jeff King
2021-04-09 11:17       ` Patrick Steinhardt
2021-04-09 15:55         ` Jeff King
2021-03-15 13:15   ` [PATCH v2 8/8] rev-list: allow filtering of provided items Patrick Steinhardt
2021-04-06 18:04     ` Jeff King
2021-04-09 10:59       ` Patrick Steinhardt [this message]
2021-04-09 15:58         ` Jeff King
2021-03-20 21:10   ` [PATCH v2 0/8] rev-parse: implement object type filter Junio C Hamano
2021-04-06 18:08     ` Jeff King
2021-04-09 11:14       ` Patrick Steinhardt
2021-04-09 16:05         ` Jeff King
2021-04-09 11:27   ` [PATCH v3 " Patrick Steinhardt
2021-04-09 11:27     ` [PATCH v3 1/8] uploadpack.txt: document implication of `uploadpackfilter.allow` Patrick Steinhardt
2021-04-09 11:27     ` [PATCH v3 2/8] revision: mark commit parents as NOT_USER_GIVEN Patrick Steinhardt
2021-04-09 11:28     ` [PATCH v3 3/8] list-objects: move tag processing into its own function Patrick Steinhardt
2021-04-09 11:28     ` [PATCH v3 4/8] list-objects: support filtering by tag and commit Patrick Steinhardt
2021-04-11  6:49       ` Junio C Hamano
2021-04-09 11:28     ` [PATCH v3 5/8] list-objects: implement object type filter Patrick Steinhardt
2021-04-09 11:28     ` [PATCH v3 6/8] pack-bitmap: " Patrick Steinhardt
2021-04-09 11:28     ` [PATCH v3 7/8] pack-bitmap: implement combined filter Patrick Steinhardt
2021-04-09 11:28     ` [PATCH v3 8/8] rev-list: allow filtering of provided items Patrick Steinhardt
2021-04-09 11:32       ` [RESEND PATCH " Patrick Steinhardt
2021-04-09 15:00       ` [PATCH " Philip Oakley
2021-04-12 13:15         ` Patrick Steinhardt
2021-04-11  6:02     ` [PATCH v3 0/8] rev-parse: implement object type filter Junio C Hamano
2021-04-12 13:12       ` Patrick Steinhardt
2021-04-12 13:37     ` [PATCH v4 0/8] rev-list: " Patrick Steinhardt
2021-04-12 13:37       ` [PATCH v4 1/8] uploadpack.txt: document implication of `uploadpackfilter.allow` Patrick Steinhardt
2021-04-12 13:37       ` [PATCH v4 2/8] revision: mark commit parents as NOT_USER_GIVEN Patrick Steinhardt
2021-04-12 13:37       ` [PATCH v4 3/8] list-objects: move tag processing into its own function Patrick Steinhardt
2021-04-12 13:37       ` [PATCH v4 4/8] list-objects: support filtering by tag and commit Patrick Steinhardt
2021-04-12 13:37       ` [PATCH v4 5/8] list-objects: implement object type filter Patrick Steinhardt
2021-04-13  9:57         ` Ævar Arnfjörð Bjarmason
2021-04-13 10:43           ` Andreas Schwab
2021-04-14 11:32           ` Patrick Steinhardt
2021-04-12 13:37       ` [PATCH v4 6/8] pack-bitmap: " Patrick Steinhardt
2021-04-12 13:37       ` [PATCH v4 7/8] pack-bitmap: implement combined filter Patrick Steinhardt
2021-04-12 13:37       ` [PATCH v4 8/8] rev-list: allow filtering of provided items Patrick Steinhardt
2021-04-13  7:45       ` [PATCH v4 0/8] rev-list: implement object type filter Jeff King
2021-04-13  8:06         ` Patrick Steinhardt
2021-04-15  9:42           ` Jeff King
2021-04-16 22:06             ` Junio C Hamano
2021-04-16 23:15               ` Junio C Hamano
2021-04-17  1:17                 ` Ramsay Jones
2021-04-17  9:01                   ` Jeff King
2021-04-17 21:45                     ` Junio C Hamano
2021-04-13 21:03         ` Junio C Hamano
2021-04-14 11:59           ` Patrick Steinhardt
2021-04-14 21:07             ` Junio C Hamano
2021-04-15  9:57               ` Jeff King
2021-04-15 17:53                 ` Junio C Hamano
2021-04-15 17:57                   ` Junio C Hamano
2021-04-17  8:58                     ` Jeff King
2021-04-19 11:46       ` [PATCH v5 " Patrick Steinhardt
2021-04-19 11:46         ` [PATCH v5 1/8] uploadpack.txt: document implication of `uploadpackfilter.allow` Patrick Steinhardt
2021-04-19 11:46         ` [PATCH v5 2/8] revision: mark commit parents as NOT_USER_GIVEN Patrick Steinhardt
2021-04-19 11:46         ` [PATCH v5 3/8] list-objects: move tag processing into its own function Patrick Steinhardt
2021-04-19 11:46         ` [PATCH v5 4/8] list-objects: support filtering by tag and commit Patrick Steinhardt
2021-04-19 11:46         ` [PATCH v5 5/8] list-objects: implement object type filter Patrick Steinhardt
2021-04-19 11:46         ` [PATCH v5 6/8] pack-bitmap: " Patrick Steinhardt
2021-04-19 11:47         ` [PATCH v5 7/8] pack-bitmap: implement combined filter Patrick Steinhardt
2021-04-19 11:47         ` [PATCH v5 8/8] rev-list: allow filtering of provided items Patrick Steinhardt
2021-04-19 23:16         ` [PATCH v5 0/8] rev-list: implement object type filter Junio C Hamano
2021-04-23  9:13           ` Jeff King
2021-04-28  2:18             ` Junio C Hamano

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