From: Junio C Hamano <gitster@pobox•com>
To: Lidong Yan <yldhome2d2@gmail•com>
Cc: git@vger•kernel.org, Lidong Yan <502024330056@smail•nju.edu.cn>
Subject: Re: [PATCH 2/2] bloom: enable multiple pathspec bloom keys
Date: Fri, 27 Jun 2025 13:39:04 -0700 [thread overview]
Message-ID: <xmqqqzz47wd3.fsf@gitster.g> (raw)
In-Reply-To: <20250625125541.3048632-3-502024330056@smail.nju.edu.cn> (Lidong Yan's message of "Wed, 25 Jun 2025 20:55:41 +0800")
Lidong Yan <yldhome2d2@gmail•com> writes:
This is a tangent, but I have to say that whoever wrote the original
test does not understand shells very well. When you have files A
and B in your working tree, to your $command, the following two does
not make any difference:
$command ?
$command A B
In fact it cannot even tell which form was used when composing the
command line. So this original test ...
> -test_expect_success 'git log with wildcard that resolves to a multiple paths does not uses Bloom filters' '
> - test_bloom_filters_not_used "-- *" &&
> - test_bloom_filters_not_used "-- file*"
... is misleading to say the least.
> +test_expect_success 'git log with wildcard that resolves to a multiple paths uses Bloom filters' '
> + test_bloom_filters_used "-- *" &&
> + test_bloom_filters_used "-- file*"
> '
I think you should just retitle this to say
git log with multiple literal paths use Bloom filter
or something.
Also the setup helper test_bloom_filters_{not_,}used helpers call is
written in a way to make it impossible to pass a real wildcard and
see how "$git log" would behave, because it does this:
git -c core.commitGraph=false log --pretty="format:%s" $1 >log_wo_bloom &&
It probably should use 'eval' so that the caller can pass a quoted
wildcard, perhaps like
eval git -c core.commitgraph=false \
log --pretty=format:%s "$1" >log_wo_bloom &&
Then a test we can add to see how wildcards prevent Bloom from
kicking in would look like
test_bloom_filters_used "-- file*" &&
test_bloom_filters_not_used "-- file4 file\*" &&
The former lets the shell expand file* when the above "eval"
evaluates its (concatenated) strings, while the latter leaves the
backslash before the asterisk in the strings fed to "eval", so the
"log" will see a pathspec with wildcard.
If we were to fix that setup() thing, we of course need to be
a bit careful about existing tests.
Thanks.
next prev parent reply other threads:[~2025-06-27 20:39 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-25 12:55 [PATCH 0/2] bloom: use bloom filter given multiple pathspec Lidong Yan
2025-06-25 12:55 ` [PATCH 1/2] bloom: replace struct bloom_key * with struct bloom_keyvec Lidong Yan
2025-06-25 17:43 ` Junio C Hamano
2025-06-26 3:44 ` Lidong Yan
2025-06-25 12:55 ` [PATCH 2/2] bloom: enable multiple pathspec bloom keys Lidong Yan
2025-06-27 13:50 ` Junio C Hamano
2025-06-27 14:24 ` Lidong Yan
2025-06-27 18:09 ` Junio C Hamano
2025-07-01 5:52 ` Lidong Yan
2025-07-01 15:19 ` Junio C Hamano
2025-07-02 7:14 ` Lidong Yan
2025-07-02 15:48 ` Junio C Hamano
2025-07-03 1:52 ` Lidong Yan
2025-07-04 12:09 ` Lidong Yan
2025-07-01 8:50 ` SZEDER Gábor
2025-07-01 11:40 ` Lidong Yan
2025-07-01 15:43 ` Junio C Hamano
2025-06-27 20:39 ` Junio C Hamano [this message]
2025-06-28 2:54 ` Lidong Yan
2025-06-25 17:32 ` [PATCH 0/2] bloom: use bloom filter given multiple pathspec Junio C Hamano
2025-06-26 3:34 ` Lidong Yan
2025-06-26 14:15 ` Junio C Hamano
2025-06-27 6:21 ` [PATCH v2 0/2] bloom: enable bloom filter optimization for multiple pathspec elements in revision traversal Lidong Yan
2025-06-28 4:21 ` [PATCH v3 " Lidong Yan
2025-07-04 11:14 ` [PATCH v4 0/4] " Lidong Yan
2025-07-04 11:14 ` [PATCH v4 1/4] bloom: add test helper to return murmur3 hash Lidong Yan
2025-07-04 11:14 ` [PATCH v4 2/4] bloom: rename function operates on bloom_key Lidong Yan
2025-07-04 11:14 ` [PATCH v4 3/4] bloom: replace struct bloom_key * with struct bloom_keyvec Lidong Yan
2025-07-07 11:35 ` Derrick Stolee
2025-07-07 14:14 ` Lidong Yan
2025-07-04 11:14 ` [PATCH v4 4/4] bloom: optimize multiple pathspec items in revision traversal Lidong Yan
2025-07-07 11:43 ` Derrick Stolee
2025-07-07 14:18 ` Lidong Yan
2025-07-07 15:14 ` Junio C Hamano
2025-07-10 8:48 ` [PATCH v5 0/4] bloom: enable bloom filter optimization for multiple pathspec elements " Lidong Yan
2025-07-10 8:48 ` [PATCH v5 1/4] bloom: add test helper to return murmur3 hash Lidong Yan
2025-07-10 8:48 ` [PATCH v5 2/4] bloom: rename function operates on bloom_key Lidong Yan
2025-07-10 8:48 ` [PATCH v5 3/4] bloom: replace struct bloom_key * with struct bloom_keyvec Lidong Yan
2025-07-10 16:17 ` Junio C Hamano
2025-07-11 12:46 ` Lidong Yan
2025-07-11 15:06 ` Junio C Hamano
2025-07-10 8:48 ` [PATCH v5 4/4] bloom: optimize multiple pathspec items in revision traversal Lidong Yan
2025-07-10 13:51 ` [PATCH v5.1 3.5/4] revision: make helper for pathspec to bloom key Derrick Stolee
2025-07-10 15:42 ` Lidong Yan
2025-07-10 13:55 ` [PATCH v5.1 4/4] bloom: optimize multiple pathspec items in revision Derrick Stolee
2025-07-10 15:49 ` Lidong Yan
2025-07-10 13:49 ` [PATCH v5 0/4] bloom: enable bloom filter optimization for multiple pathspec elements in revision traversal Derrick Stolee
2025-07-12 9:35 ` [PATCH v6 0/5] " Lidong Yan
2025-07-12 9:35 ` [PATCH v6 1/5] bloom: add test helper to return murmur3 hash Lidong Yan
2025-07-12 9:35 ` [PATCH v6 2/5] bloom: rename function operates on bloom_key Lidong Yan
2025-07-12 9:35 ` [PATCH v6 3/5] bloom: replace struct bloom_key * with struct bloom_keyvec Lidong Yan
2025-07-12 9:35 ` [PATCH v6 4/5] revision: make helper for pathspec to bloom keyvec Lidong Yan
2025-07-12 9:35 ` [PATCH v6 5/5] To enable optimize multiple pathspec items in revision traversal, return 0 if all pathspec item is literal in forbid_bloom_filters(). Add for loops to initialize and check each pathspec item's bloom_keyvec when optimization is possible Lidong Yan
2025-07-12 9:47 ` Lidong Yan
2025-07-12 9:51 ` [PATCH v6 5/5] bloom: optimize multiple pathspec items in revision Lidong Yan
2025-07-14 16:51 ` Derrick Stolee
2025-07-14 17:01 ` Junio C Hamano
2025-07-15 1:37 ` Lidong Yan
2025-07-15 2:56 ` [RESEND][PATCH " Lidong Yan
2025-07-14 16:53 ` [PATCH v6 0/5] bloom: enable bloom filter optimization for multiple pathspec elements in revision traversal Derrick Stolee
2025-07-14 17:02 ` Junio C Hamano
2025-07-15 1:34 ` Lidong Yan
2025-07-15 2:48 ` Derrick Stolee
2025-07-15 15:09 ` Junio C Hamano
2025-06-28 4:21 ` [PATCH v3 1/2] bloom: replace struct bloom_key * with struct bloom_keyvec Lidong Yan
2025-07-02 15:08 ` Patrick Steinhardt
2025-07-02 15:49 ` Lidong Yan
2025-07-02 18:28 ` Junio C Hamano
2025-07-03 1:41 ` Lidong Yan
2025-06-28 4:21 ` [PATCH v3 2/2] bloom: optimize multiple pathspec items in revision traversal Lidong Yan
2025-06-27 6:21 ` [PATCH v2 1/2] bloom: replace struct bloom_key * with struct bloom_keyvec Lidong Yan
2025-06-27 6:21 ` [PATCH v2 2/2] bloom: optimize multiple pathspec items in revision traversal Lidong Yan
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