git/t/t7412-submodule-absorbgitdirs.sh
Stefan Beller 98bf667489 submodule update: add regression test with old style setups
As f178c13fda (Revert "Merge branch 'sb/submodule-core-worktree'",
2018-09-07) was produced shortly before a release, nobody asked for
a regression test to be included. Add a regression test that makes sure
that the invocation of `git submodule update` on old setups doesn't
produce errors as pointed out in f178c13fda.

The place to add such a regression test may look odd in t7412, but
that is the best place as there we setup old style submodule setups
explicitly.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-12-26 10:17:20 -08:00

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#!/bin/sh
test_description='Test submodule absorbgitdirs
This test verifies that `git submodue absorbgitdirs` moves a submodules git
directory into the superproject.
'
. ./test-lib.sh
test_expect_success 'setup a real submodule' '
git init sub1 &&
test_commit -C sub1 first &&
git submodule add ./sub1 &&
test_tick &&
git commit -m superproject
'
test_expect_success 'absorb the git dir' '
>expect.1 &&
>expect.2 &&
>actual.1 &&
>actual.2 &&
git status >expect.1 &&
git -C sub1 rev-parse HEAD >expect.2 &&
git submodule absorbgitdirs &&
git fsck &&
test -f sub1/.git &&
test -d .git/modules/sub1 &&
git status >actual.1 &&
git -C sub1 rev-parse HEAD >actual.2 &&
test_cmp expect.1 actual.1 &&
test_cmp expect.2 actual.2
'
test_expect_success 'absorbing does not fail for deinitialized submodules' '
test_when_finished "git submodule update --init" &&
git submodule deinit --all &&
git submodule absorbgitdirs &&
test -d .git/modules/sub1 &&
test -d sub1 &&
! test -e sub1/.git
'
test_expect_success 'setup nested submodule' '
git init sub1/nested &&
test_commit -C sub1/nested first_nested &&
git -C sub1 submodule add ./nested &&
test_tick &&
git -C sub1 commit -m "add nested" &&
git add sub1 &&
git commit -m "sub1 to include nested submodule"
'
test_expect_success 'absorb the git dir in a nested submodule' '
git status >expect.1 &&
git -C sub1/nested rev-parse HEAD >expect.2 &&
git submodule absorbgitdirs &&
test -f sub1/nested/.git &&
test -d .git/modules/sub1/modules/nested &&
git status >actual.1 &&
git -C sub1/nested rev-parse HEAD >actual.2 &&
test_cmp expect.1 actual.1 &&
test_cmp expect.2 actual.2
'
test_expect_success 're-setup nested submodule' '
# un-absorb the direct submodule, to test if the nested submodule
# is still correct (needs a rewrite of the gitfile only)
rm -rf sub1/.git &&
mv .git/modules/sub1 sub1/.git &&
GIT_WORK_TREE=. git -C sub1 config --unset core.worktree &&
# fixup the nested submodule
echo "gitdir: ../.git/modules/nested" >sub1/nested/.git &&
GIT_WORK_TREE=../../../nested git -C sub1/.git/modules/nested config \
core.worktree "../../../nested" &&
# make sure this re-setup is correct
git status --ignore-submodules=none &&
# also make sure this old setup does not regress
git submodule update --init --recursive >out 2>err &&
test_must_be_empty out &&
test_must_be_empty err
'
test_expect_success 'absorb the git dir in a nested submodule' '
git status >expect.1 &&
git -C sub1/nested rev-parse HEAD >expect.2 &&
git submodule absorbgitdirs &&
test -f sub1/.git &&
test -f sub1/nested/.git &&
test -d .git/modules/sub1/modules/nested &&
git status >actual.1 &&
git -C sub1/nested rev-parse HEAD >actual.2 &&
test_cmp expect.1 actual.1 &&
test_cmp expect.2 actual.2
'
test_expect_success 'setup a gitlink with missing .gitmodules entry' '
git init sub2 &&
test_commit -C sub2 first &&
git add sub2 &&
git commit -m superproject
'
test_expect_success 'absorbing the git dir fails for incomplete submodules' '
git status >expect.1 &&
git -C sub2 rev-parse HEAD >expect.2 &&
test_must_fail git submodule absorbgitdirs &&
git -C sub2 fsck &&
test -d sub2/.git &&
git status >actual &&
git -C sub2 rev-parse HEAD >actual.2 &&
test_cmp expect.1 actual.1 &&
test_cmp expect.2 actual.2
'
test_expect_success 'setup a submodule with multiple worktrees' '
# first create another unembedded git dir in a new submodule
git init sub3 &&
test_commit -C sub3 first &&
git submodule add ./sub3 &&
test_tick &&
git commit -m "add another submodule" &&
git -C sub3 worktree add ../sub3_second_work_tree
'
test_expect_success 'absorbing fails for a submodule with multiple worktrees' '
test_must_fail git submodule absorbgitdirs sub3 2>error &&
test_i18ngrep "not supported" error
'
test_done