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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 09:49:36 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 09:49:36 +0000
commit5ec6074f0633939fd17d94111d10c6c6b062978c (patch)
treebfaa17b5a64abc66c918e9c70969e519d9e1df8e /t/t5526-fetch-submodules.sh
parentInitial commit. (diff)
downloadgit-5ec6074f0633939fd17d94111d10c6c6b062978c.tar.xz
git-5ec6074f0633939fd17d94111d10c6c6b062978c.zip
Adding upstream version 1:2.30.2.upstream/1%2.30.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 't/t5526-fetch-submodules.sh')
-rwxr-xr-xt/t5526-fetch-submodules.sh842
1 files changed, 842 insertions, 0 deletions
diff --git a/t/t5526-fetch-submodules.sh b/t/t5526-fetch-submodules.sh
new file mode 100755
index 0000000..53d7b8e
--- /dev/null
+++ b/t/t5526-fetch-submodules.sh
@@ -0,0 +1,842 @@
+#!/bin/sh
+# Copyright (c) 2010, Jens Lehmann
+
+test_description='Recursive "git fetch" for submodules'
+
+. ./test-lib.sh
+
+pwd=$(pwd)
+
+add_upstream_commit() {
+ (
+ cd submodule &&
+ head1=$(git rev-parse --short HEAD) &&
+ echo new >> subfile &&
+ test_tick &&
+ git add subfile &&
+ git commit -m new subfile &&
+ head2=$(git rev-parse --short HEAD) &&
+ echo "Fetching submodule submodule" > ../expect.err &&
+ echo "From $pwd/submodule" >> ../expect.err &&
+ echo " $head1..$head2 sub -> origin/sub" >> ../expect.err
+ ) &&
+ (
+ cd deepsubmodule &&
+ head1=$(git rev-parse --short HEAD) &&
+ echo new >> deepsubfile &&
+ test_tick &&
+ git add deepsubfile &&
+ git commit -m new deepsubfile &&
+ head2=$(git rev-parse --short HEAD) &&
+ echo "Fetching submodule submodule/subdir/deepsubmodule" >> ../expect.err
+ echo "From $pwd/deepsubmodule" >> ../expect.err &&
+ echo " $head1..$head2 deep -> origin/deep" >> ../expect.err
+ )
+}
+
+test_expect_success setup '
+ mkdir deepsubmodule &&
+ (
+ cd deepsubmodule &&
+ git init &&
+ echo deepsubcontent > deepsubfile &&
+ git add deepsubfile &&
+ git commit -m new deepsubfile &&
+ git branch -M deep
+ ) &&
+ mkdir submodule &&
+ (
+ cd submodule &&
+ git init &&
+ echo subcontent > subfile &&
+ git add subfile &&
+ git submodule add "$pwd/deepsubmodule" subdir/deepsubmodule &&
+ git commit -a -m new &&
+ git branch -M sub
+ ) &&
+ git submodule add "$pwd/submodule" submodule &&
+ git commit -am initial &&
+ git branch -M super &&
+ git clone . downstream &&
+ (
+ cd downstream &&
+ git submodule update --init --recursive
+ )
+'
+
+test_expect_success "fetch --recurse-submodules recurses into submodules" '
+ add_upstream_commit &&
+ (
+ cd downstream &&
+ git fetch --recurse-submodules >../actual.out 2>../actual.err
+ ) &&
+ test_must_be_empty actual.out &&
+ test_i18ncmp expect.err actual.err
+'
+
+test_expect_success "submodule.recurse option triggers recursive fetch" '
+ add_upstream_commit &&
+ (
+ cd downstream &&
+ git -c submodule.recurse fetch >../actual.out 2>../actual.err
+ ) &&
+ test_must_be_empty actual.out &&
+ test_i18ncmp expect.err actual.err
+'
+
+test_expect_success "fetch --recurse-submodules -j2 has the same output behaviour" '
+ add_upstream_commit &&
+ (
+ cd downstream &&
+ GIT_TRACE="$TRASH_DIRECTORY/trace.out" git fetch --recurse-submodules -j2 2>../actual.err
+ ) &&
+ test_must_be_empty actual.out &&
+ test_i18ncmp expect.err actual.err &&
+ grep "2 tasks" trace.out
+'
+
+test_expect_success "fetch alone only fetches superproject" '
+ add_upstream_commit &&
+ (
+ cd downstream &&
+ git fetch >../actual.out 2>../actual.err
+ ) &&
+ test_must_be_empty actual.out &&
+ test_must_be_empty actual.err
+'
+
+test_expect_success "fetch --no-recurse-submodules only fetches superproject" '
+ (
+ cd downstream &&
+ git fetch --no-recurse-submodules >../actual.out 2>../actual.err
+ ) &&
+ test_must_be_empty actual.out &&
+ test_must_be_empty actual.err
+'
+
+test_expect_success "using fetchRecurseSubmodules=true in .gitmodules recurses into submodules" '
+ (
+ cd downstream &&
+ git config -f .gitmodules submodule.submodule.fetchRecurseSubmodules true &&
+ git fetch >../actual.out 2>../actual.err
+ ) &&
+ test_must_be_empty actual.out &&
+ test_i18ncmp expect.err actual.err
+'
+
+test_expect_success "--no-recurse-submodules overrides .gitmodules config" '
+ add_upstream_commit &&
+ (
+ cd downstream &&
+ git fetch --no-recurse-submodules >../actual.out 2>../actual.err
+ ) &&
+ test_must_be_empty actual.out &&
+ test_must_be_empty actual.err
+'
+
+test_expect_success "using fetchRecurseSubmodules=false in .git/config overrides setting in .gitmodules" '
+ (
+ cd downstream &&
+ git config submodule.submodule.fetchRecurseSubmodules false &&
+ git fetch >../actual.out 2>../actual.err
+ ) &&
+ test_must_be_empty actual.out &&
+ test_must_be_empty actual.err
+'
+
+test_expect_success "--recurse-submodules overrides fetchRecurseSubmodules setting from .git/config" '
+ (
+ cd downstream &&
+ git fetch --recurse-submodules >../actual.out 2>../actual.err &&
+ git config --unset -f .gitmodules submodule.submodule.fetchRecurseSubmodules &&
+ git config --unset submodule.submodule.fetchRecurseSubmodules
+ ) &&
+ test_must_be_empty actual.out &&
+ test_i18ncmp expect.err actual.err
+'
+
+test_expect_success "--quiet propagates to submodules" '
+ (
+ cd downstream &&
+ git fetch --recurse-submodules --quiet >../actual.out 2>../actual.err
+ ) &&
+ test_must_be_empty actual.out &&
+ test_must_be_empty actual.err
+'
+
+test_expect_success "--quiet propagates to parallel submodules" '
+ (
+ cd downstream &&
+ git fetch --recurse-submodules -j 2 --quiet >../actual.out 2>../actual.err
+ ) &&
+ test_must_be_empty actual.out &&
+ test_must_be_empty actual.err
+'
+
+test_expect_success "--dry-run propagates to submodules" '
+ add_upstream_commit &&
+ (
+ cd downstream &&
+ git fetch --recurse-submodules --dry-run >../actual.out 2>../actual.err
+ ) &&
+ test_must_be_empty actual.out &&
+ test_i18ncmp expect.err actual.err
+'
+
+test_expect_success "Without --dry-run propagates to submodules" '
+ (
+ cd downstream &&
+ git fetch --recurse-submodules >../actual.out 2>../actual.err
+ ) &&
+ test_must_be_empty actual.out &&
+ test_i18ncmp expect.err actual.err
+'
+
+test_expect_success "recurseSubmodules=true propagates into submodules" '
+ add_upstream_commit &&
+ (
+ cd downstream &&
+ git config fetch.recurseSubmodules true &&
+ git fetch >../actual.out 2>../actual.err
+ ) &&
+ test_must_be_empty actual.out &&
+ test_i18ncmp expect.err actual.err
+'
+
+test_expect_success "--recurse-submodules overrides config in submodule" '
+ add_upstream_commit &&
+ (
+ cd downstream &&
+ (
+ cd submodule &&
+ git config fetch.recurseSubmodules false
+ ) &&
+ git fetch --recurse-submodules >../actual.out 2>../actual.err
+ ) &&
+ test_must_be_empty actual.out &&
+ test_i18ncmp expect.err actual.err
+'
+
+test_expect_success "--no-recurse-submodules overrides config setting" '
+ add_upstream_commit &&
+ (
+ cd downstream &&
+ git config fetch.recurseSubmodules true &&
+ git fetch --no-recurse-submodules >../actual.out 2>../actual.err
+ ) &&
+ test_must_be_empty actual.out &&
+ test_must_be_empty actual.err
+'
+
+test_expect_success "Recursion doesn't happen when no new commits are fetched in the superproject" '
+ (
+ cd downstream &&
+ (
+ cd submodule &&
+ git config --unset fetch.recurseSubmodules
+ ) &&
+ git config --unset fetch.recurseSubmodules &&
+ git fetch >../actual.out 2>../actual.err
+ ) &&
+ test_must_be_empty actual.out &&
+ test_must_be_empty actual.err
+'
+
+test_expect_success "Recursion stops when no new submodule commits are fetched" '
+ head1=$(git rev-parse --short HEAD) &&
+ git add submodule &&
+ git commit -m "new submodule" &&
+ head2=$(git rev-parse --short HEAD) &&
+ echo "From $pwd/." > expect.err.sub &&
+ echo " $head1..$head2 super -> origin/super" >>expect.err.sub &&
+ head -3 expect.err >> expect.err.sub &&
+ (
+ cd downstream &&
+ git fetch >../actual.out 2>../actual.err
+ ) &&
+ test_i18ncmp expect.err.sub actual.err &&
+ test_must_be_empty actual.out
+'
+
+test_expect_success "Recursion doesn't happen when new superproject commits don't change any submodules" '
+ add_upstream_commit &&
+ head1=$(git rev-parse --short HEAD) &&
+ echo a > file &&
+ git add file &&
+ git commit -m "new file" &&
+ head2=$(git rev-parse --short HEAD) &&
+ echo "From $pwd/." > expect.err.file &&
+ echo " $head1..$head2 super -> origin/super" >> expect.err.file &&
+ (
+ cd downstream &&
+ git fetch >../actual.out 2>../actual.err
+ ) &&
+ test_must_be_empty actual.out &&
+ test_i18ncmp expect.err.file actual.err
+'
+
+test_expect_success "Recursion picks up config in submodule" '
+ (
+ cd downstream &&
+ git fetch --recurse-submodules &&
+ (
+ cd submodule &&
+ git config fetch.recurseSubmodules true
+ )
+ ) &&
+ add_upstream_commit &&
+ head1=$(git rev-parse --short HEAD) &&
+ git add submodule &&
+ git commit -m "new submodule" &&
+ head2=$(git rev-parse --short HEAD) &&
+ echo "From $pwd/." > expect.err.sub &&
+ echo " $head1..$head2 super -> origin/super" >> expect.err.sub &&
+ cat expect.err >> expect.err.sub &&
+ (
+ cd downstream &&
+ git fetch >../actual.out 2>../actual.err &&
+ (
+ cd submodule &&
+ git config --unset fetch.recurseSubmodules
+ )
+ ) &&
+ test_i18ncmp expect.err.sub actual.err &&
+ test_must_be_empty actual.out
+'
+
+test_expect_success "Recursion picks up all submodules when necessary" '
+ add_upstream_commit &&
+ (
+ cd submodule &&
+ (
+ cd subdir/deepsubmodule &&
+ git fetch &&
+ git checkout -q FETCH_HEAD
+ ) &&
+ head1=$(git rev-parse --short HEAD^) &&
+ git add subdir/deepsubmodule &&
+ git commit -m "new deepsubmodule" &&
+ head2=$(git rev-parse --short HEAD) &&
+ echo "Fetching submodule submodule" > ../expect.err.sub &&
+ echo "From $pwd/submodule" >> ../expect.err.sub &&
+ echo " $head1..$head2 sub -> origin/sub" >> ../expect.err.sub
+ ) &&
+ head1=$(git rev-parse --short HEAD) &&
+ git add submodule &&
+ git commit -m "new submodule" &&
+ head2=$(git rev-parse --short HEAD) &&
+ echo "From $pwd/." > expect.err.2 &&
+ echo " $head1..$head2 super -> origin/super" >> expect.err.2 &&
+ cat expect.err.sub >> expect.err.2 &&
+ tail -3 expect.err >> expect.err.2 &&
+ (
+ cd downstream &&
+ git fetch >../actual.out 2>../actual.err
+ ) &&
+ test_i18ncmp expect.err.2 actual.err &&
+ test_must_be_empty actual.out
+'
+
+test_expect_success "'--recurse-submodules=on-demand' doesn't recurse when no new commits are fetched in the superproject (and ignores config)" '
+ add_upstream_commit &&
+ (
+ cd submodule &&
+ (
+ cd subdir/deepsubmodule &&
+ git fetch &&
+ git checkout -q FETCH_HEAD
+ ) &&
+ head1=$(git rev-parse --short HEAD^) &&
+ git add subdir/deepsubmodule &&
+ git commit -m "new deepsubmodule" &&
+ head2=$(git rev-parse --short HEAD) &&
+ echo Fetching submodule submodule > ../expect.err.sub &&
+ echo "From $pwd/submodule" >> ../expect.err.sub &&
+ echo " $head1..$head2 sub -> origin/sub" >> ../expect.err.sub
+ ) &&
+ (
+ cd downstream &&
+ git config fetch.recurseSubmodules true &&
+ git fetch --recurse-submodules=on-demand >../actual.out 2>../actual.err &&
+ git config --unset fetch.recurseSubmodules
+ ) &&
+ test_must_be_empty actual.out &&
+ test_must_be_empty actual.err
+'
+
+test_expect_success "'--recurse-submodules=on-demand' recurses as deep as necessary (and ignores config)" '
+ head1=$(git rev-parse --short HEAD) &&
+ git add submodule &&
+ git commit -m "new submodule" &&
+ head2=$(git rev-parse --short HEAD) &&
+ tail -3 expect.err > expect.err.deepsub &&
+ echo "From $pwd/." > expect.err &&
+ echo " $head1..$head2 super -> origin/super" >>expect.err &&
+ cat expect.err.sub >> expect.err &&
+ cat expect.err.deepsub >> expect.err &&
+ (
+ cd downstream &&
+ git config fetch.recurseSubmodules false &&
+ (
+ cd submodule &&
+ git config -f .gitmodules submodule.subdir/deepsubmodule.fetchRecursive false
+ ) &&
+ git fetch --recurse-submodules=on-demand >../actual.out 2>../actual.err &&
+ git config --unset fetch.recurseSubmodules &&
+ (
+ cd submodule &&
+ git config --unset -f .gitmodules submodule.subdir/deepsubmodule.fetchRecursive
+ )
+ ) &&
+ test_must_be_empty actual.out &&
+ test_i18ncmp expect.err actual.err
+'
+
+test_expect_success "'--recurse-submodules=on-demand' stops when no new submodule commits are found in the superproject (and ignores config)" '
+ add_upstream_commit &&
+ head1=$(git rev-parse --short HEAD) &&
+ echo a >> file &&
+ git add file &&
+ git commit -m "new file" &&
+ head2=$(git rev-parse --short HEAD) &&
+ echo "From $pwd/." > expect.err.file &&
+ echo " $head1..$head2 super -> origin/super" >> expect.err.file &&
+ (
+ cd downstream &&
+ git fetch --recurse-submodules=on-demand >../actual.out 2>../actual.err
+ ) &&
+ test_must_be_empty actual.out &&
+ test_i18ncmp expect.err.file actual.err
+'
+
+test_expect_success "'fetch.recurseSubmodules=on-demand' overrides global config" '
+ (
+ cd downstream &&
+ git fetch --recurse-submodules
+ ) &&
+ add_upstream_commit &&
+ git config --global fetch.recurseSubmodules false &&
+ head1=$(git rev-parse --short HEAD) &&
+ git add submodule &&
+ git commit -m "new submodule" &&
+ head2=$(git rev-parse --short HEAD) &&
+ echo "From $pwd/." > expect.err.2 &&
+ echo " $head1..$head2 super -> origin/super" >>expect.err.2 &&
+ head -3 expect.err >> expect.err.2 &&
+ (
+ cd downstream &&
+ git config fetch.recurseSubmodules on-demand &&
+ git fetch >../actual.out 2>../actual.err
+ ) &&
+ git config --global --unset fetch.recurseSubmodules &&
+ (
+ cd downstream &&
+ git config --unset fetch.recurseSubmodules
+ ) &&
+ test_must_be_empty actual.out &&
+ test_i18ncmp expect.err.2 actual.err
+'
+
+test_expect_success "'submodule.<sub>.fetchRecurseSubmodules=on-demand' overrides fetch.recurseSubmodules" '
+ (
+ cd downstream &&
+ git fetch --recurse-submodules
+ ) &&
+ add_upstream_commit &&
+ git config fetch.recurseSubmodules false &&
+ head1=$(git rev-parse --short HEAD) &&
+ git add submodule &&
+ git commit -m "new submodule" &&
+ head2=$(git rev-parse --short HEAD) &&
+ echo "From $pwd/." > expect.err.2 &&
+ echo " $head1..$head2 super -> origin/super" >>expect.err.2 &&
+ head -3 expect.err >> expect.err.2 &&
+ (
+ cd downstream &&
+ git config submodule.submodule.fetchRecurseSubmodules on-demand &&
+ git fetch >../actual.out 2>../actual.err
+ ) &&
+ git config --unset fetch.recurseSubmodules &&
+ (
+ cd downstream &&
+ git config --unset submodule.submodule.fetchRecurseSubmodules
+ ) &&
+ test_must_be_empty actual.out &&
+ test_i18ncmp expect.err.2 actual.err
+'
+
+test_expect_success "don't fetch submodule when newly recorded commits are already present" '
+ (
+ cd submodule &&
+ git checkout -q HEAD^^
+ ) &&
+ head1=$(git rev-parse --short HEAD) &&
+ git add submodule &&
+ git commit -m "submodule rewound" &&
+ head2=$(git rev-parse --short HEAD) &&
+ echo "From $pwd/." > expect.err &&
+ echo " $head1..$head2 super -> origin/super" >> expect.err &&
+ (
+ cd downstream &&
+ git fetch >../actual.out 2>../actual.err
+ ) &&
+ test_must_be_empty actual.out &&
+ test_i18ncmp expect.err actual.err &&
+ (
+ cd submodule &&
+ git checkout -q sub
+ )
+'
+
+test_expect_success "'fetch.recurseSubmodules=on-demand' works also without .gitmodules entry" '
+ (
+ cd downstream &&
+ git fetch --recurse-submodules
+ ) &&
+ add_upstream_commit &&
+ head1=$(git rev-parse --short HEAD) &&
+ git add submodule &&
+ git rm .gitmodules &&
+ git commit -m "new submodule without .gitmodules" &&
+ head2=$(git rev-parse --short HEAD) &&
+ echo "From $pwd/." >expect.err.2 &&
+ echo " $head1..$head2 super -> origin/super" >>expect.err.2 &&
+ head -3 expect.err >>expect.err.2 &&
+ (
+ cd downstream &&
+ rm .gitmodules &&
+ git config fetch.recurseSubmodules on-demand &&
+ # fake submodule configuration to avoid skipping submodule handling
+ git config -f .gitmodules submodule.fake.path fake &&
+ git config -f .gitmodules submodule.fake.url fakeurl &&
+ git add .gitmodules &&
+ git config --unset submodule.submodule.url &&
+ git fetch >../actual.out 2>../actual.err &&
+ # cleanup
+ git config --unset fetch.recurseSubmodules &&
+ git reset --hard
+ ) &&
+ test_must_be_empty actual.out &&
+ test_i18ncmp expect.err.2 actual.err &&
+ git checkout HEAD^ -- .gitmodules &&
+ git add .gitmodules &&
+ git commit -m "new submodule restored .gitmodules"
+'
+
+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 &&
+ GIT_TRACE=$(pwd)/trace.out git fetch &&
+ grep "8 tasks" trace.out &&
+ GIT_TRACE=$(pwd)/trace.out git fetch --jobs 9 &&
+ grep "9 tasks" trace.out
+ )
+'
+
+test_expect_success 'fetching submodule into a broken repository' '
+ # Prepare src and src/sub nested in it
+ git init src &&
+ (
+ cd src &&
+ git init sub &&
+ git -C sub commit --allow-empty -m "initial in sub" &&
+ git submodule add -- ./sub sub &&
+ git commit -m "initial in top"
+ ) &&
+
+ # Clone the old-fashoned way
+ git clone src dst &&
+ git -C dst clone ../src/sub sub &&
+
+ # Make sure that old-fashoned layout is still supported
+ git -C dst status &&
+
+ # "diff" would find no change
+ git -C dst diff --exit-code &&
+
+ # Recursive-fetch works fine
+ git -C dst fetch --recurse-submodules &&
+
+ # Break the receiving submodule
+ rm -f dst/sub/.git/HEAD &&
+
+ # NOTE: without the fix the following tests will recurse forever!
+ # They should terminate with an error.
+
+ test_must_fail git -C dst status &&
+ test_must_fail git -C dst diff &&
+ test_must_fail git -C dst fetch --recurse-submodules
+'
+
+test_expect_success "fetch new commits when submodule got renamed" '
+ git clone . downstream_rename &&
+ (
+ cd downstream_rename &&
+ git submodule update --init --recursive &&
+ git checkout -b rename &&
+ git mv submodule submodule_renamed &&
+ (
+ cd submodule_renamed &&
+ git checkout -b rename_sub &&
+ echo a >a &&
+ git add a &&
+ git commit -ma &&
+ git push origin rename_sub &&
+ git rev-parse HEAD >../../expect
+ ) &&
+ git add submodule_renamed &&
+ git commit -m "update renamed submodule" &&
+ git push origin rename
+ ) &&
+ (
+ cd downstream &&
+ git fetch --recurse-submodules=on-demand &&
+ (
+ cd submodule &&
+ git rev-parse origin/rename_sub >../../actual
+ )
+ ) &&
+ test_cmp expect actual
+'
+
+test_expect_success "fetch new submodule commits on-demand outside standard refspec" '
+ # add a second submodule and ensure it is around in downstream first
+ git clone submodule sub1 &&
+ git submodule add ./sub1 &&
+ git commit -m "adding a second submodule" &&
+ git -C downstream pull &&
+ git -C downstream submodule update --init --recursive &&
+
+ git checkout --detach &&
+
+ C=$(git -C submodule commit-tree -m "new change outside refs/heads" HEAD^{tree}) &&
+ git -C submodule update-ref refs/changes/1 $C &&
+ git update-index --cacheinfo 160000 $C submodule &&
+ test_tick &&
+
+ D=$(git -C sub1 commit-tree -m "new change outside refs/heads" HEAD^{tree}) &&
+ git -C sub1 update-ref refs/changes/2 $D &&
+ git update-index --cacheinfo 160000 $D sub1 &&
+
+ git commit -m "updated submodules outside of refs/heads" &&
+ E=$(git rev-parse HEAD) &&
+ git update-ref refs/changes/3 $E &&
+ (
+ cd downstream &&
+ git fetch --recurse-submodules origin refs/changes/3:refs/heads/my_branch &&
+ git -C submodule cat-file -t $C &&
+ git -C sub1 cat-file -t $D &&
+ git checkout --recurse-submodules FETCH_HEAD
+ )
+'
+
+test_expect_success 'fetch new submodule commit on-demand in FETCH_HEAD' '
+ # depends on the previous test for setup
+
+ C=$(git -C submodule commit-tree -m "another change outside refs/heads" HEAD^{tree}) &&
+ git -C submodule update-ref refs/changes/4 $C &&
+ git update-index --cacheinfo 160000 $C submodule &&
+ test_tick &&
+
+ D=$(git -C sub1 commit-tree -m "another change outside refs/heads" HEAD^{tree}) &&
+ git -C sub1 update-ref refs/changes/5 $D &&
+ git update-index --cacheinfo 160000 $D sub1 &&
+
+ git commit -m "updated submodules outside of refs/heads" &&
+ E=$(git rev-parse HEAD) &&
+ git update-ref refs/changes/6 $E &&
+ (
+ cd downstream &&
+ git fetch --recurse-submodules origin refs/changes/6 &&
+ git -C submodule cat-file -t $C &&
+ git -C sub1 cat-file -t $D &&
+ git checkout --recurse-submodules FETCH_HEAD
+ )
+'
+
+test_expect_success 'fetch new submodule commits on-demand without .gitmodules entry' '
+ # depends on the previous test for setup
+
+ git config -f .gitmodules --remove-section submodule.sub1 &&
+ git add .gitmodules &&
+ git commit -m "delete gitmodules file" &&
+ git checkout -B super &&
+ git -C downstream fetch &&
+ git -C downstream checkout origin/super &&
+
+ C=$(git -C submodule commit-tree -m "yet another change outside refs/heads" HEAD^{tree}) &&
+ git -C submodule update-ref refs/changes/7 $C &&
+ git update-index --cacheinfo 160000 $C submodule &&
+ test_tick &&
+
+ D=$(git -C sub1 commit-tree -m "yet another change outside refs/heads" HEAD^{tree}) &&
+ git -C sub1 update-ref refs/changes/8 $D &&
+ git update-index --cacheinfo 160000 $D sub1 &&
+
+ git commit -m "updated submodules outside of refs/heads" &&
+ E=$(git rev-parse HEAD) &&
+ git update-ref refs/changes/9 $E &&
+ (
+ cd downstream &&
+ git fetch --recurse-submodules origin refs/changes/9 &&
+ git -C submodule cat-file -t $C &&
+ git -C sub1 cat-file -t $D &&
+ git checkout --recurse-submodules FETCH_HEAD
+ )
+'
+
+test_expect_success 'fetch new submodule commit intermittently referenced by superproject' '
+ # depends on the previous test for setup
+
+ D=$(git -C sub1 commit-tree -m "change 10 outside refs/heads" HEAD^{tree}) &&
+ E=$(git -C sub1 commit-tree -m "change 11 outside refs/heads" HEAD^{tree}) &&
+ F=$(git -C sub1 commit-tree -m "change 12 outside refs/heads" HEAD^{tree}) &&
+
+ git -C sub1 update-ref refs/changes/10 $D &&
+ git update-index --cacheinfo 160000 $D sub1 &&
+ git commit -m "updated submodules outside of refs/heads" &&
+
+ git -C sub1 update-ref refs/changes/11 $E &&
+ git update-index --cacheinfo 160000 $E sub1 &&
+ git commit -m "updated submodules outside of refs/heads" &&
+
+ git -C sub1 update-ref refs/changes/12 $F &&
+ git update-index --cacheinfo 160000 $F sub1 &&
+ git commit -m "updated submodules outside of refs/heads" &&
+
+ G=$(git rev-parse HEAD) &&
+ git update-ref refs/changes/13 $G &&
+ (
+ cd downstream &&
+ git fetch --recurse-submodules origin refs/changes/13 &&
+
+ git -C sub1 cat-file -t $D &&
+ git -C sub1 cat-file -t $E &&
+ git -C sub1 cat-file -t $F
+ )
+'
+
+add_commit_push () {
+ dir="$1" &&
+ msg="$2" &&
+ shift 2 &&
+ git -C "$dir" add "$@" &&
+ git -C "$dir" commit -a -m "$msg" &&
+ git -C "$dir" push
+}
+
+compare_refs_in_dir () {
+ fail= &&
+ if test "x$1" = 'x!'
+ then
+ fail='!' &&
+ shift
+ fi &&
+ git -C "$1" rev-parse --verify "$2" >expect &&
+ git -C "$3" rev-parse --verify "$4" >actual &&
+ eval $fail test_cmp expect actual
+}
+
+
+test_expect_success 'setup nested submodule fetch test' '
+ # does not depend on any previous test setups
+
+ for repo in outer middle inner
+ do
+ git init --bare $repo &&
+ git clone $repo ${repo}_content &&
+ echo "$repo" >"${repo}_content/file" &&
+ add_commit_push ${repo}_content "initial" file ||
+ return 1
+ done &&
+
+ git clone outer A &&
+ git -C A submodule add "$pwd/middle" &&
+ git -C A/middle/ submodule add "$pwd/inner" &&
+ add_commit_push A/middle/ "adding inner sub" .gitmodules inner &&
+ add_commit_push A/ "adding middle sub" .gitmodules middle &&
+
+ git clone outer B &&
+ git -C B/ submodule update --init middle &&
+
+ compare_refs_in_dir A HEAD B HEAD &&
+ compare_refs_in_dir A/middle HEAD B/middle HEAD &&
+ test_path_is_file B/file &&
+ test_path_is_file B/middle/file &&
+ test_path_is_missing B/middle/inner/file &&
+
+ echo "change on inner repo of A" >"A/middle/inner/file" &&
+ add_commit_push A/middle/inner "change on inner" file &&
+ add_commit_push A/middle "change on inner" inner &&
+ add_commit_push A "change on inner" middle
+'
+
+test_expect_success 'fetching a superproject containing an uninitialized sub/sub project' '
+ # depends on previous test for setup
+
+ git -C B/ fetch &&
+ compare_refs_in_dir A origin/HEAD B origin/HEAD
+'
+
+fetch_with_recursion_abort () {
+ # In a regression the following git call will run into infinite recursion.
+ # To handle that, we connect the sed command to the git call by a pipe
+ # so that sed can kill the infinite recursion when detected.
+ # The recursion creates git output like:
+ # Fetching submodule sub
+ # Fetching submodule sub/sub <-- [1]
+ # Fetching submodule sub/sub/sub
+ # ...
+ # [1] sed will stop reading and cause git to eventually stop and die
+
+ git -C "$1" fetch --recurse-submodules 2>&1 |
+ sed "/Fetching submodule $2[^$]/q" >out &&
+ ! grep "Fetching submodule $2[^$]" out
+}
+
+test_expect_success 'setup recursive fetch with uninit submodule' '
+ # does not depend on any previous test setups
+
+ test_create_repo super &&
+ test_commit -C super initial &&
+ test_create_repo sub &&
+ test_commit -C sub initial &&
+ git -C sub rev-parse HEAD >expect &&
+
+ git -C super submodule add ../sub &&
+ git -C super commit -m "add sub" &&
+
+ git clone super superclone &&
+ git -C superclone submodule status >out &&
+ sed -e "s/^-//" -e "s/ sub.*$//" out >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'recursive fetch with uninit submodule' '
+ # depends on previous test for setup
+
+ fetch_with_recursion_abort superclone sub &&
+ git -C superclone submodule status >out &&
+ sed -e "s/^-//" -e "s/ sub$//" out >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'recursive fetch after deinit a submodule' '
+ # depends on previous test for setup
+
+ git -C superclone submodule update --init sub &&
+ git -C superclone submodule deinit -f sub &&
+
+ fetch_with_recursion_abort superclone sub &&
+ git -C superclone submodule status >out &&
+ sed -e "s/^-//" -e "s/ sub$//" out >actual &&
+ test_cmp expect actual
+'
+
+test_done