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From: Jonathan Tan <jonathantanmy@google.com>
To: Jonathan Tan <jonathantanmy@google.com>
Cc: Junio C Hamano <gitster@pobox.com>,
	git@vger.kernel.org, Derrick Stolee <derrickstolee@github.com>
Subject: Re: [PATCH v2 0/3] Changed path filter hash fix and version bump
Date: Wed,  7 Jun 2023 14:37:12 -0700	[thread overview]
Message-ID: <20230607213712.2589505-1-jonathantanmy@google.com> (raw)
In-Reply-To: <20230607163056.1602219-1-jonathantanmy@google.com>

Jonathan Tan <jonathantanmy@google.com> writes:
> Junio C Hamano <gitster@pobox.com> writes:
> > Seems to break t4216 when merged to 'seen' to replace the previous
> > round.  Could you take a look?
> 
> OK - I see that it fails CI when I upload the merge to GitHub (although
> it passes locally). I'll take a look.

Hmm...so when the test writes a file with a high bit filename, the
filename written is different. Here's the output from my machine
(Linux):

        ++ git -C highbit1/ commit -m c1                                                                                                                          
        [main (root-commit) 808e481] c1                                                                                                                           
         Author: A U Thor <author@example.com>                                                                                                                    
         1 file changed, 1 insertion(+)                                                                                                                           
         create mode 100644 "\302\242"                                                                                                                            
        ++ case "$tag" in                                                                                                                                         
        ++ git -C highbit1/ tag c1                                                                                                                                
        ++ touch $'\302\242\302\242'                                                                                                                              
        ++ ls                                                                                                                                                     
         A        expect   file5_renamed   limits        log_wo_bloom   trace2-auto.txt  ''$'\302\242\302\242'                                                    
         actual   file4    highbit1        log_w_bloom   trace.perf     trace2.txt                                                                                
        ++ git -C highbit1 commit-graph write --reachable --changed-paths                                                                                         
        bloom calculating -62,-94 version 1                                                                                                                       
        ok 141 - set up repo with high bit path, version 1 changed-path       

and here's the output from the CI on GitHub on linux-gcc-default:

        [main (root-commit) 3f37a43] c1
         Author: A U Thor <author@example.com>
         1 file changed, 1 insertion(+)
         create mode 100644 "\\xc2\\xa2"
        + git -C highbit1/ tag c1
        + touch \xc2\xa2\xc2\xa2
        + ls
        A
        \xc2\xa2\xc2\xa2
        actual
        expect
        file4
        file5_renamed
        highbit1
        limits
        log_w_bloom
        log_wo_bloom
        trace.perf
        trace2-auto.txt
        trace2.txt
        + git -C highbit1 commit-graph write --reachable --changed-paths
        bloom calculating 92,120 version 1

        ok 141 - set up repo with high bit path, version 1 changed-path

These were run with some extra code, here for completeness:

        diff --git a/bloom.c b/bloom.c
        index dea883d8d6..ccc3e0ce80 100644
        --- a/bloom.c
        +++ b/bloom.c
        @@ -192,6 +192,8 @@ void fill_bloom_key(const char *data,
                        ? murmur3_seeded_v2 : murmur3_seeded_v1)(seed0, data, len);
                const uint32_t hash1 = (settings->hash_version == 2
                        ? murmur3_seeded_v2 : murmur3_seeded_v1)(seed1, data, len);
        +       if (len > 0)
        +               fprintf(stderr, "bloom calculating %d,%d version %d\n", data[0], data[1], settings->hash_version);
 
                key->hashes = (uint32_t *)xcalloc(settings->num_hashes, sizeof(uint32_t));
                for (i = 0; i < settings->num_hashes; i++)
        diff --git a/t/t4216-log-bloom.sh b/t/t4216-log-bloom.sh
        index 764c6dee0f..1121e7d4cd 100755
        --- a/t/t4216-log-bloom.sh
        +++ b/t/t4216-log-bloom.sh
        @@ -423,6 +423,8 @@ CENT=$(printf "\xc2\xa2")
         test_expect_success 'set up repo with high bit path, version 1 changed-path' '
                git init highbit1 &&
                test_commit -C highbit1 c1 "$CENT" &&
        +       touch $CENT$CENT &&
        +       ls &&
                git -C highbit1 commit-graph write --reachable --changed-paths
         '

Notice the different filename after "create mode", and the different
"ls" output. I'll investigate some more, but if anyone offhand knows
what's going on (and/or knows how to write a high-bit filename portably,
even across  Linux), please let me know.

An alternative is to drop the tests from these patches - so, leave them
in during the review period and reviewers would see that the tests pass
the CI jobs for Windows and Mac OS X pass, and then before we merge it,
delete the tests from the patches. This also solves needing to prevent
unsigned char platforms from running the version 1 tests - there's no
prereq for that yet and we would have to investigate making one.

  reply	other threads:[~2023-06-07 21:37 UTC|newest]

Thread overview: 116+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-05-22 21:48 [PATCH 0/2] Changed path filter hash fix and version bump Jonathan Tan
2023-05-22 21:48 ` [PATCH 1/2] t4216: test wrong bloom filter version rejection Jonathan Tan
2023-05-22 21:48 ` [PATCH 2/2] commit-graph: fix murmur3, bump filter ver. to 2 Jonathan Tan
2023-05-23 13:00   ` Derrick Stolee
2023-05-23 23:00     ` Jonathan Tan
2023-05-23 23:51     ` Junio C Hamano
2023-05-24 21:26       ` Jonathan Tan
2023-05-26 13:19         ` Derrick Stolee
2023-05-30 17:26           ` Jonathan Tan
2023-05-23  4:42 ` [PATCH 0/2] Changed path filter hash fix and version bump Junio C Hamano
2023-05-31 23:12 ` [PATCH v2 0/3] " Jonathan Tan
2023-05-31 23:12   ` [PATCH v2 1/3] t4216: test changed path filters with high bit paths Jonathan Tan
2023-05-31 23:12   ` [PATCH v2 2/3] repo-settings: introduce commitgraph.changedPathsVersion Jonathan Tan
2023-05-31 23:12   ` [PATCH v2 3/3] commit-graph: new filter ver. that fixes murmur3 Jonathan Tan
2023-06-03  1:01   ` [PATCH v2 0/3] Changed path filter hash fix and version bump Junio C Hamano
2023-06-03  2:24     ` Junio C Hamano
2023-06-07 16:30       ` Jonathan Tan
2023-06-07 21:37         ` Jonathan Tan [this message]
2023-06-08 19:21 ` [PATCH v3 0/4] " Jonathan Tan
2023-06-08 19:21   ` [PATCH v3 1/4] gitformat-commit-graph: describe version 2 of BDAT Jonathan Tan
2023-06-08 19:52     ` Ramsay Jones
2023-06-12 21:26       ` Junio C Hamano
2023-06-08 19:21   ` [PATCH v3 2/4] t4216: test changed path filters with high bit paths Jonathan Tan
2023-06-08 19:21   ` [PATCH v3 3/4] repo-settings: introduce commitgraph.changedPathsVersion Jonathan Tan
2023-06-08 19:21   ` [PATCH v3 4/4] commit-graph: new filter ver. that fixes murmur3 Jonathan Tan
2023-06-08 19:50   ` [PATCH v3 0/4] Changed path filter hash fix and version bump Ramsay Jones
2023-06-09  0:08     ` Jonathan Tan
2023-06-12 21:31     ` Junio C Hamano
2023-06-13 17:16       ` Jonathan Tan
2023-06-13 17:29         ` [PATCH] CodingGuidelines: use octal escapes, not hex Jonathan Tan
2023-06-13 18:16           ` Eric Sunshine
2023-06-13 18:43             ` Jonathan Tan
2023-06-13 19:15               ` Eric Sunshine
2023-06-13 19:29                 ` Junio C Hamano
2023-06-13 19:16         ` [PATCH v3 0/4] Changed path filter hash fix and version bump Junio C Hamano
2023-06-13 17:39 ` [PATCH v4 " Jonathan Tan
2023-06-13 17:39   ` [PATCH v4 1/4] gitformat-commit-graph: describe version 2 of BDAT Jonathan Tan
2023-06-13 21:58     ` Junio C Hamano
2023-06-20 13:22       ` Derrick Stolee
2023-06-21 12:08       ` Taylor Blau
2023-06-22 22:26         ` Jonathan Tan
2023-06-23 13:05           ` Derrick Stolee
2023-06-13 17:39   ` [PATCH v4 2/4] t4216: test changed path filters with high bit paths Jonathan Tan
2023-06-13 17:39   ` [PATCH v4 3/4] repo-settings: introduce commitgraph.changedPathsVersion Jonathan Tan
2023-06-20 13:28     ` Derrick Stolee
2023-06-21 12:14     ` Taylor Blau
2023-06-13 17:39   ` [PATCH v4 4/4] commit-graph: new filter ver. that fixes murmur3 Jonathan Tan
2023-06-20 13:39     ` Derrick Stolee
2023-06-20 18:37       ` Junio C Hamano
2023-06-13 19:21   ` [PATCH v4 0/4] Changed path filter hash fix and version bump Junio C Hamano
2023-06-20 13:43     ` Derrick Stolee
2023-06-20 21:56       ` Jonathan Tan
2023-06-21 12:19       ` Taylor Blau
2023-06-21 17:53         ` Derrick Stolee
2023-06-22 22:27           ` Jonathan Tan
2023-06-23 13:18             ` Derrick Stolee
2023-07-13 21:42 ` [PATCH v5 " Jonathan Tan
2023-07-13 21:42   ` [PATCH v5 1/4] gitformat-commit-graph: describe version 2 of BDAT Jonathan Tan
2023-07-19 17:25     ` Taylor Blau
2023-07-20 20:20       ` Jonathan Tan
2023-07-21  1:38         ` Taylor Blau
2023-07-13 21:42   ` [PATCH v5 2/4] t4216: test changed path filters with high bit paths Jonathan Tan
2023-07-13 22:50     ` Junio C Hamano
2023-07-19 17:27       ` Taylor Blau
2023-07-19 17:55         ` [PATCH 0/4] commit-graph: avoid looking at Bloom filter data directly Taylor Blau
2023-07-19 17:55           ` [PATCH 1/4] t/helper/test-read-graph.c: extract `dump_graph_info()` Taylor Blau
2023-07-19 17:55           ` [PATCH 2/4] bloom.h: make `load_bloom_filter_from_graph()` public Taylor Blau
2023-07-19 17:55           ` [PATCH 3/4] t/helper/test-read-graph: implement `bloom-filters` mode Taylor Blau
2023-07-19 17:55           ` [PATCH 4/4] fixup! t4216: test changed path filters with high bit paths Taylor Blau
2023-07-19 19:24           ` [PATCH 0/4] commit-graph: avoid looking at Bloom filter data directly Junio C Hamano
2023-07-20 20:22           ` Jonathan Tan
2023-07-13 21:42   ` [PATCH v5 3/4] repo-settings: introduce commitgraph.changedPathsVersion Jonathan Tan
2023-07-19 18:10     ` Taylor Blau
2023-07-20 20:42       ` Jonathan Tan
2023-07-20 21:02         ` Taylor Blau
2023-07-13 21:42   ` [PATCH v5 4/4] commit-graph: new filter ver. that fixes murmur3 Jonathan Tan
2023-07-19 18:24     ` Taylor Blau
2023-07-20 21:27       ` Jonathan Tan
2023-07-26 23:32         ` Taylor Blau
2023-07-13 22:16   ` [PATCH v5 0/4] Changed path filter hash fix and version bump Junio C Hamano
2023-07-13 22:59     ` Junio C Hamano
2023-07-14 18:48     ` Jonathan Tan
2023-07-20 21:46 ` [PATCH v6 0/7] " Jonathan Tan
2023-07-20 21:46   ` [PATCH v6 1/7] gitformat-commit-graph: describe version 2 of BDAT Jonathan Tan
2023-07-20 21:46   ` [PATCH v6 2/7] t/helper/test-read-graph.c: extract `dump_graph_info()` Jonathan Tan
2023-07-26 23:26     ` Taylor Blau
2023-07-20 21:46   ` [PATCH v6 3/7] bloom.h: make `load_bloom_filter_from_graph()` public Jonathan Tan
2023-07-20 21:46   ` [PATCH v6 4/7] t/helper/test-read-graph: implement `bloom-filters` mode Jonathan Tan
2023-07-20 21:46   ` [PATCH v6 5/7] t4216: test changed path filters with high bit paths Jonathan Tan
2023-07-26 23:28     ` Taylor Blau
2023-07-20 21:46   ` [PATCH v6 6/7] repo-settings: introduce commitgraph.changedPathsVersion Jonathan Tan
2023-07-20 21:46   ` [PATCH v6 7/7] commit-graph: new filter ver. that fixes murmur3 Jonathan Tan
2023-07-25 20:52   ` [PATCH v6 0/7] Changed path filter hash fix and version bump Junio C Hamano
2023-07-26 20:39   ` Junio C Hamano
2023-07-27  0:17     ` Taylor Blau
2023-07-27  0:49       ` Junio C Hamano
2023-07-27 17:39         ` Jonathan Tan
2023-07-27 17:56           ` Taylor Blau
2023-07-27 20:53             ` Jonathan Tan
2023-08-01 18:08               ` Taylor Blau
2023-08-01 18:52                 ` Jonathan Tan
2023-08-03  0:01                 ` Taylor Blau
2023-08-03 13:18                   ` Derrick Stolee
2023-08-03 18:45                     ` Taylor Blau
2023-07-27 18:44         ` Junio C Hamano
2023-08-01 18:41 ` [PATCH v7 " Jonathan Tan
2023-08-01 18:41   ` [PATCH v7 1/7] gitformat-commit-graph: describe version 2 of BDAT Jonathan Tan
2023-08-01 18:41   ` [PATCH v7 2/7] t/helper/test-read-graph.c: extract `dump_graph_info()` Jonathan Tan
2023-08-01 18:41   ` [PATCH v7 3/7] bloom.h: make `load_bloom_filter_from_graph()` public Jonathan Tan
2023-08-01 18:41   ` [PATCH v7 4/7] t/helper/test-read-graph: implement `bloom-filters` mode Jonathan Tan
2023-08-01 18:41   ` [PATCH v7 5/7] t4216: test changed path filters with high bit paths Jonathan Tan
2023-08-01 18:41   ` [PATCH v7 6/7] repo-settings: introduce commitgraph.changedPathsVersion Jonathan Tan
2023-08-01 18:41   ` [PATCH v7 7/7] commit-graph: new filter ver. that fixes murmur3 Jonathan Tan
2023-08-01 18:44   ` [PATCH v7 0/7] Changed path filter hash fix and version bump Junio C Hamano
2023-08-01 20:58     ` Taylor Blau
2023-08-01 21:07       ` Junio C Hamano

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