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submodule update: run custom update script for initial populating as well

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In 1b4735d9f3 (submodule: no [--merge|--rebase] when newly cloned,
2011-02-17), all actions were defaulted to checkout for populating
a submodule initially, because merging or rebasing makes no sense
in that situation.

Other commands however do make sense, such as the custom command
that was added later (6cb5728c43, submodule update: allow custom
command to update submodule working tree, 2013-07-03).

I am unsure about the "none" command, as I can see an initial
checkout there as a useful thing. On the other hand going strictly
by our own documentation, we should do nothing in case of "none"
as well, because the user asked for it.

Reported-by: Han-Wen Nienhuys <hanwen@google.com>
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Stefan Beller 2017-01-25 15:48:51 -08:00 committed by Junio C Hamano
parent c3808ca698
commit e7b37caf4f
2 changed files with 16 additions and 1 deletions
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5
git-submodule.sh
View file

@ -605,7 +605,10 @@ cmd_update()
if test $just_cloned -eq 1
then
subsha1=
update_module=checkout
case "$update_module" in
merge | rebase | none)
update_module=checkout ;;
esac
else
subsha1=$(sanitize_submodule_env; cd "$sm_path" &&
git rev-parse --verify HEAD) ||

12
t/t7406-submodule-update.sh
View file

@ -424,6 +424,16 @@ test_expect_success 'submodule update - command in .git/config catches failure -
test_i18ncmp actual expect
'
test_expect_success 'submodule update - command run for initial population of submodule' '
cat <<-\ EOF >expect
Execution of '\''false $submodulesha1'\'' failed in submodule path '\''submodule'\''
EOF &&
rm -rf super/submodule &&
test_must_fail git -C super submodule update >../actual &&
test_cmp expect actual &&
git -C super submodule update --checkout
'
cat << EOF >expect
Execution of 'false $submodulesha1' failed in submodule path '../super/submodule'
Failed to recurse into submodule path '../super'
@ -476,6 +486,7 @@ test_expect_success 'submodule init picks up merge' '
'
test_expect_success 'submodule update --merge - ignores --merge for new submodules' '
test_config -C super submodule.submodule.update checkout &&
(cd super &&
rm -rf submodule &&
git submodule update submodule &&
@ -488,6 +499,7 @@ test_expect_success 'submodule update --merge - ignores --merge for new submod
'
test_expect_success 'submodule update --rebase - ignores --rebase for new submodules' '
test_config -C super submodule.submodule.update checkout &&
(cd super &&
rm -rf submodule &&
git submodule update submodule &&