From: Jeff King <peff@peff.net>
To: Patrick Steinhardt <ps@pks.im>
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: Tue, 6 Apr 2021 14:04:15 -0400 [thread overview]
Message-ID: <YGyinyL2UU421hoX@coredump.intra.peff.net> (raw)
In-Reply-To: <0e26fee8b31e46e87fb9fa1ac599506502a9d622.1615813673.git.ps@pks.im>
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"?
> @@ -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?
And then these hunks:
> diff --git a/list-objects-filter-options.c b/list-objects-filter-options.c
> index bb6f6577d5..2877aa9e96 100644
> --- a/list-objects-filter-options.c
> +++ b/list-objects-filter-options.c
> @@ -242,6 +242,7 @@ static void transform_to_combine_type(
> memset(filter_options, 0, sizeof(*filter_options));
> filter_options->sub = sub_array;
> filter_options->sub_alloc = initial_sub_alloc;
> + filter_options->filter_wants = sub_array[0].filter_wants;
> }
> filter_options->sub_nr = 1;
> filter_options->choice = LOFC_COMBINE;
> @@ -290,6 +291,9 @@ void parse_list_objects_filter(
> parse_error = gently_parse_list_objects_filter(
> &filter_options->sub[filter_options->sub_nr - 1], arg,
> &errbuf);
> + if (!parse_error)
> + filter_options->sub[filter_options->sub_nr - 1].filter_wants =
> + filter_options->filter_wants;
> }
> if (parse_error)
> die("%s", errbuf.buf);
> diff --git a/list-objects-filter-options.h b/list-objects-filter-options.h
> index 4d0d0588cc..5e609e307a 100644
> --- a/list-objects-filter-options.h
> +++ b/list-objects-filter-options.h
> @@ -42,6 +42,12 @@ struct list_objects_filter_options {
> */
> enum list_objects_filter_choice choice;
>
> + /*
> + * "--filter-provided" was given by the user, instructing us to also
> + * filter all explicitly provided objects.
> + */
> + unsigned int filter_wants : 1;
> +
> /*
> * Choice is LOFC_DISABLED because "--no-filter" was requested.
> */
would not be needed at all.
> diff --git a/pack-bitmap.c b/pack-bitmap.c
> index e33805e076..5ff800316b 100644
> --- a/pack-bitmap.c
> +++ b/pack-bitmap.c
> @@ -1101,7 +1101,8 @@ struct bitmap_index *prepare_bitmap_walk(struct rev_info *revs,
> if (haves_bitmap)
> bitmap_and_not(wants_bitmap, haves_bitmap);
>
> - filter_bitmap(bitmap_git, wants, wants_bitmap, filter);
> + filter_bitmap(bitmap_git, (filter && filter->filter_wants) ? NULL : wants,
> + wants_bitmap, filter);
>
> bitmap_git->result = wants_bitmap;
> bitmap_git->haves = haves_bitmap;
I guess we'd need to pass that flag into prepare_bitmap_walk() here so
it knows not to bother with the wants-filtering. But that seems less bad
that stuffing it into the filter struct.
-Peff
next prev parent reply other threads:[~2021-04-06 18:04 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 [this message]
2021-04-09 10:59 ` Patrick Steinhardt
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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