Re: [PATCH] submodule update: run at most one fetch job unless otherwise set
From: Junio C Hamano <hidden>
Date: 2018-12-14 02:54:04
Stefan Beller [off-list ref] writes:
From: Junio C Hamano <redacted> In a028a1930c (fetching submodules: respect `submodule.fetchJobs` config option, 2016-02-29), we made sure to keep the default behavior of a fetching at most one submodule at once when not setting the newly introduced `submodule.fetchJobs` config. This regressed in 90efe595c5 (builtin/submodule--helper: factor out submodule updating, 2018-08-03). Fix it. Reported-by: Sjon Hortensius <redacted> Signed-off-by: Junio C Hamano <redacted> Signed-off-by: Stefan Beller <redacted> ---
Thanks for tying the loose ends.
We may want to convert the _INIT macro to use the designated
initializers; I had to count the fields twice to make sure I was
tweaking the right one.
It did not help that I saw, before looking at the current code, that
90efe595c5 added one field at the end to the struct but did not
touch _INIT macro at all. That made me guess that max_jobs=0 was
due to _missing_ initialization value, leading me to an incorrect
fix to append an extra 1 at the end, but that was bogus. The
missing initialization left by 90efe595 ("builtin/submodule--helper:
factor out submodule updating", 2018-08-03) was silently fixed by
f1d15713 ("builtin/submodule--helper: store update_clone information
in a struct", 2018-08-03), I think, so replacing the 0 at the end is
1 happens to be the right fix, but with designated initializers, all
these confusions are more easily avoided.
quoted hunk
builtin/submodule--helper.c | 2 +- t/t5526-fetch-submodules.sh | 2 ++ 2 files changed, 3 insertions(+), 1 deletion(-)diff --git a/builtin/submodule--helper.c b/builtin/submodule--helper.c index d38113a31a..1f8a4a9d52 100644 --- a/builtin/submodule--helper.c +++ b/builtin/submodule--helper.c@@ -1551,7 +1551,7 @@ struct submodule_update_clone { #define SUBMODULE_UPDATE_CLONE_INIT {0, MODULE_LIST_INIT, 0, \ SUBMODULE_UPDATE_STRATEGY_INIT, 0, 0, -1, STRING_LIST_INIT_DUP, 0, \ NULL, NULL, NULL, \ - NULL, 0, 0, 0, NULL, 0, 0, 0} + NULL, 0, 0, 0, NULL, 0, 0, 1} static void next_submodule_warn_missing(struct submodule_update_clone *suc,diff --git a/t/t5526-fetch-submodules.sh b/t/t5526-fetch-submodules.sh index 6c2f9b2ba2..a0317556c6 100755 --- a/t/t5526-fetch-submodules.sh +++ b/t/t5526-fetch-submodules.sh@@ -524,6 +524,8 @@ test_expect_success 'fetching submodules respects parallel settings' ' git config fetch.recurseSubmodules true && ( cd downstream && + GIT_TRACE=$(pwd)/trace.out git fetch && + grep "1 tasks" trace.out && GIT_TRACE=$(pwd)/trace.out git fetch --jobs 7 && grep "7 tasks" trace.out && git config submodule.fetchJobs 8 &&