From: "Ævar Arnfjörð Bjarmason" <avarab@gmail.com>
To: Stefan Beller <sbeller@google.com>
Cc: Junio C Hamano <gitster@pobox.com>, git <git@vger.kernel.org>,
Ben Peart <benpeart@microsoft.com>
Subject: Re: sb/submodule-move-nested breaks t7411 under GIT_FSMONITOR_TEST
Date: Thu, 06 Sep 2018 14:31:44 +0200 [thread overview]
Message-ID: <87tvn2remn.fsf@evledraar.gmail.com> (raw)
In-Reply-To: <CAGZ79kae4k=uLx-oX5emxas4KrqObzQhzgir0coOSBzzpO8APw@mail.gmail.com>
On Fri, May 25 2018, Stefan Beller wrote:
> On Fri, May 25, 2018 at 5:28 AM, Ævar Arnfjörð Bjarmason
> <avarab@gmail.com> wrote:
>>
>> On Thu, May 17 2018, Junio C Hamano wrote:
>>
>>> * sb/submodule-move-nested (2018-03-29) 6 commits
>>> (merged to 'next' on 2018-04-25 at 86b177433a)
>>> + submodule: fixup nested submodules after moving the submodule
>>> + submodule-config: remove submodule_from_cache
>>> + submodule-config: add repository argument to submodule_from_{name, path}
>>> + submodule-config: allow submodule_free to handle arbitrary repositories
>>> + grep: remove "repo" arg from non-supporting funcs
>>> + submodule.h: drop declaration of connect_work_tree_and_git_dir
>>>
>>> Moving a submodule that itself has submodule in it with "git mv"
>>> forgot to make necessary adjustment to the nested sub-submodules;
>>> now the codepath learned to recurse into the submodules.
>>
>> I didn't spot this earlier because I don't test this a lot, but I've
>> bisected the following breakage down to da62f786d2 ("submodule: fixup
>> nested submodules after moving the submodule", 2018-03-28) (and manually
>> confirmed by reverting). On Linux both Debian & CentOS I get tests 3 and
>> 4 failing with:
>>
>> GIT_FSMONITOR_TEST=$PWD/t7519/fsmonitor-all ./t7411-submodule-config.sh
>>
>> -v -x output follows:
>>
>> expecting success:
>> mkdir submodule &&
>> (cd submodule &&
>> git init &&
>> echo a >a &&
>> git add . &&
>> git commit -ma
>> ) &&
>> mkdir super &&
>> (cd super &&
>> git init &&
>> git submodule add ../submodule &&
>> git submodule add ../submodule a &&
>> git commit -m "add as submodule and as a" &&
>> git mv a b &&
>> git commit -m "move a to b"
>> )
>
> when you add a test_pause here and dump the
> state of the setup, then it can be observed that when the fsmonitor is active
> the last commit is different; without fsmonitor the moved gitlink and the change
> to the .gitmodules file is part of the commit, i.e.
>
> $ git -C super show
> commit d3d90b70a01bd17d026f75a803c8b65f5903a7c0 (HEAD -> master)
> Author: A U Thor <author@example.com>
> Date: Fri May 25 19:21:58 2018 +0000
>
> move a to b
>
> diff --git a/.gitmodules b/.gitmodules
> index 3f4d474..6149210 100644
> --- a/.gitmodules
> +++ b/.gitmodules
> @@ -2,5 +2,5 @@
> path = submodule
> url = ../submodule
> [submodule "a"]
> - path = a
> + path = b
> url = ../submodule
> diff --git a/a b/b
> similarity index 100%
> rename from a
> rename to b
> When running with the fsmonitor:
>
> $ git -C super show
> commit 57022a92acf46f303498c045440ec099cbc35a2d (HEAD -> master)
> Author: A U Thor <author@example.com>
> Date: Fri May 25 19:22:52 2018 +0000
>
> move a to b
>
> diff --git a/a b/b
> similarity index 100%
> rename from a
> rename to b
> $ git -C super diff
> diff --git a/.gitmodules b/.gitmodules
> index 3f4d474..6149210 100644
> --- a/.gitmodules
> +++ b/.gitmodules
> @@ -2,5 +2,5 @@
> path = submodule
> url = ../submodule
> [submodule "a"]
> - path = a
> + path = b
> url = ../submodule
>
> This hints at a problem with git commit;
>
> I tried adding test_tick, to unconfuse the fsmonitor, but that doesn't help,
> digging further, the problem is in the git mv command, which fails to
> add the change in
> .gitmodules to the index.
>
> Adding the verbose flag to stage_updated_gitmodules() that is called by
> git-mv very late in the game, such that
>
> void stage_updated_gitmodules(struct index_state *istate)
> {
> trace_printf("staging .gitmodules files");
> if (add_file_to_index(istate, GITMODULES_FILE, ADD_CACHE_VERBOSE))
> die(_("staging updated .gitmodules failed"));
> }
>
> We would get a message if the .gitmodules file is staged correctly, as
> add_file_to_index() that calls add_to_index that would print
>
> if (verbose && !was_same)
> printf("add '%s'\n", path);
>
> I could not see that message, so I suspect, that there is something
> racy.
>
> Will debug further.
I spotted this again after testing the split index (see
https://public-inbox.org/git/87va7ireuu.fsf@evledraar.gmail.com/) and
was testing the fsmonitor test mode as well.
So gentle *poke*: Did you get anywhere with debugging this? It's still
failing on "master" now.
next prev parent reply other threads:[~2018-09-06 12:31 UTC|newest]
Thread overview: 95+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-17 6:01 What's cooking in git.git (May 2018, #02; Thu, 17) Junio C Hamano
2018-05-17 6:39 ` jk/branch-l-0-deprecation (was Re: What's cooking in git.git (May 2018, #02; Thu, 17)) Kaartic Sivaraam
2018-05-17 9:48 ` Ævar Arnfjörð Bjarmason
2018-05-17 11:00 ` Kaartic Sivaraam
2018-05-17 12:02 ` Ævar Arnfjörð Bjarmason
2018-05-17 13:36 ` Jeff King
2018-05-24 15:10 ` Kaartic Sivaraam
2018-05-24 19:22 ` Jeff King
2018-05-24 19:31 ` [PATCH] branch: issue "-l" deprecation warning after pager starts Jeff King
2018-05-25 1:55 ` Junio C Hamano
2018-05-25 2:40 ` Jeff King
2018-05-25 8:56 ` Junio C Hamano
2018-05-25 9:14 ` Junio C Hamano
2018-05-25 17:10 ` Jeff King
2018-05-26 2:37 ` Junio C Hamano
2018-05-25 21:00 ` [RFC PATCH 0/3] usage: prefix all lines in `vreportf()`, not just the first Martin Ågren
2018-05-25 21:00 ` [RFC PATCH 1/3] usage: extract `prefix_suffix_lines()` from `advise()` Martin Ågren
2018-05-28 8:27 ` Junio C Hamano
2018-05-28 18:40 ` Duy Nguyen
2018-05-29 21:33 ` Jeff King
2018-05-29 21:39 ` Jeff King
2018-05-30 1:42 ` Junio C Hamano
2018-05-30 6:00 ` Junio C Hamano
2018-05-30 10:26 ` Martin Ågren
2018-05-31 6:07 ` Jeff King
2018-05-25 21:00 ` [RFC PATCH 2/3] usage: prefix all lines in `vreportf()`, not just the first Martin Ågren
2018-05-28 9:25 ` Junio C Hamano
2018-05-28 18:45 ` Duy Nguyen
2018-05-28 21:45 ` Junio C Hamano
2018-05-29 4:49 ` Martin Ågren
2018-05-29 5:50 ` Junio C Hamano
2018-05-29 10:30 ` Martin Ågren
2018-05-29 12:08 ` Junio C Hamano
2018-05-29 15:50 ` Duy Nguyen
2018-05-30 10:19 ` Martin Ågren
2018-05-29 21:32 ` Jeff King
2018-05-30 10:20 ` Martin Ågren
2018-05-25 21:00 ` [RFC PATCH 3/3] usage: translate the "error: "-prefix and others Martin Ågren
2018-05-26 2:32 ` [PATCH] branch: issue "-l" deprecation warning after pager starts Junio C Hamano
2018-05-26 2:33 ` Junio C Hamano
2018-05-29 21:20 ` Jeff King
2018-05-29 21:21 ` Jeff King
2018-05-30 2:48 ` Junio C Hamano
2018-05-31 5:44 ` Jeff King
2018-05-26 19:39 ` Kaartic Sivaraam
2018-06-02 4:46 ` Duy Nguyen
2018-06-02 8:10 ` Jeff King
2018-05-26 18:45 ` Kaartic Sivaraam
2018-05-29 21:15 ` Jeff King
2018-05-30 2:52 ` Junio C Hamano
2018-05-31 5:51 ` Jeff King
2018-06-01 1:35 ` Junio C Hamano
2018-05-31 5:52 ` Kaartic.Sivaraam
2018-05-17 13:22 ` What's cooking in git.git (May 2018, #02; Thu, 17) Derrick Stolee
2018-05-17 18:20 ` Stefan Beller
2018-05-17 18:29 ` [PATCH 0/2] Reroll 2 last commits of sb/object-store-replace Stefan Beller
2018-05-17 18:29 ` [PATCH 1/2] object.c: free replace map in raw_object_store_clear Stefan Beller
2018-05-17 18:29 ` [PATCH 2/2] replace-object.c: remove the_repository from prepare_replace_object Stefan Beller
2018-05-17 18:40 ` [PATCH] merge-recursive: give notice when submodule commit gets fast-forwarded Stefan Beller
2018-05-18 19:43 ` [PATCH v2 0/1] rebased: inform about auto submodule ff Leif Middelschulte
2018-05-18 19:48 ` [PATCH v3 " Leif Middelschulte
2018-05-18 19:48 ` [PATCH 1/1] Inform about fast-forwarding of submodules during merge Leif Middelschulte
2018-05-18 21:25 ` Elijah Newren
2018-05-21 4:12 ` Junio C Hamano
2018-05-17 19:46 ` [PATCH 0/8] Reroll of sb/diff-color-move-more Stefan Beller
2018-05-17 19:46 ` [PATCH 1/8] xdiff/xdiff.h: remove unused flags Stefan Beller
2018-05-17 19:46 ` [PATCH 2/8] xdiff/xdiffi.c: remove unneeded function declarations Stefan Beller
2018-05-17 19:46 ` [PATCH 3/8] diff.c: do not pass diff options as keydata to hashmap Stefan Beller
2018-05-17 19:46 ` [PATCH 4/8] diff.c: adjust hash function signature to match hashmap expectation Stefan Beller
2018-05-17 19:46 ` [PATCH 5/8] diff.c: add a blocks mode for moved code detection Stefan Beller
2018-05-17 19:46 ` [PATCH 6/8] diff.c: decouple white space treatment from move detection algorithm Stefan Beller
2018-05-18 4:00 ` Simon Ruderich
2018-05-18 19:25 ` Stefan Beller
2018-05-17 19:46 ` [PATCH 7/8] diff.c: add --color-moved-ignore-space-delta option Stefan Beller
2018-05-17 19:46 ` [PATCH 8/8] diff: color-moved white space handling options imply color-moved Stefan Beller
2018-05-17 22:53 ` [PATCH 0/8] Reroll of sb/diff-color-move-more Jonathan Tan
2018-06-07 23:54 ` Jacob Keller
2018-05-17 22:36 ` What's cooking in git.git (May 2018, #02; Thu, 17) Junio C Hamano
2018-05-17 22:39 ` Stefan Beller
2018-05-17 22:56 ` Junio C Hamano
2018-05-17 22:58 ` Stefan Beller
2018-05-21 1:57 ` brian m. carlson
2018-05-21 17:36 ` Stefan Beller
2018-05-25 12:28 ` sb/submodule-move-nested breaks t7411 under GIT_FSMONITOR_TEST Ævar Arnfjörð Bjarmason
2018-05-25 17:27 ` Stefan Beller
2018-05-25 19:49 ` Stefan Beller
2018-09-06 12:31 ` Ævar Arnfjörð Bjarmason [this message]
2018-09-06 16:57 ` Stefan Beller
2018-09-06 19:03 ` Ben Peart
2018-09-06 20:14 ` Stefan Beller
2018-09-06 20:34 ` [PATCH] git-mv: allow submodules and fsmonitor to work together Stefan Beller
2018-09-10 15:58 ` Ben Peart
2018-09-10 16:29 ` [PATCH v1] " Ben Peart
2018-09-10 17:07 ` Stefan Beller
2018-09-10 19:38 ` Ben Peart
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