git/t/t5526-fetch-submodules.sh
Heiko Voigt c68f837576 implement fetching of moved submodules
We store the changed submodules paths to calculate which submodule needs
fetching. This does not work for moved submodules since their paths do
not stay the same in case of a moved submodules. In case of new
submodules we do not have a path in the current checkout, since they
just appeared in this fetch.

It is more general to collect the submodule names for changes instead of
their paths to include the above cases. If we do not have a
configuration for a gitlink we rely on constructing a default name from
the path if a git repository can be found at its path. We skip
non-configured gitlinks whose default name collides with a configured
one.

With the change described above we implement 'on-demand' fetching of
changes in moved submodules.

Signed-off-by: Heiko Voigt <hvoigt@hvoigt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-17 10:27:18 +09:00

609 lines
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Executable File

#!/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 master -> origin/master" >> ../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 master -> origin/master" >> ../expect.err
)
}
test_expect_success setup '
mkdir deepsubmodule &&
(
cd deepsubmodule &&
git init &&
echo deepsubcontent > deepsubfile &&
git add deepsubfile &&
git commit -m new deepsubfile
) &&
mkdir submodule &&
(
cd submodule &&
git init &&
echo subcontent > subfile &&
git add subfile &&
git submodule add "$pwd/deepsubmodule" subdir/deepsubmodule &&
git commit -a -m new
) &&
git submodule add "$pwd/submodule" submodule &&
git commit -am initial &&
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=$(pwd)/../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 -s actual.out &&
! test -s 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 -s actual.out &&
! test -s 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 -s actual.out &&
! test -s 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 -s actual.out &&
! test -s 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 -s actual.out &&
! test -s 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 -s actual.out &&
! test -s 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 -s actual.out &&
! test -s 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 -s actual.out &&
! test -s 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 master -> origin/master" >>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 master -> origin/master" >> expect.err.file &&
(
cd downstream &&
git fetch >../actual.out 2>../actual.err
) &&
! test -s 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 master -> origin/master" >> 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 master -> origin/master" >> ../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 master -> origin/master" >> 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 master -> origin/master" >> ../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 -s actual.out &&
! test -s 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 master -> origin/master" >>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 master -> origin/master" >> expect.err.file &&
(
cd downstream &&
git fetch --recurse-submodules=on-demand >../actual.out 2>../actual.err
) &&
! test -s 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 master -> origin/master" >>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 master -> origin/master" >>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 master -> origin/master" >> expect.err &&
(
cd downstream &&
git fetch >../actual.out 2>../actual.err
) &&
! test -s actual.out &&
test_i18ncmp expect.err actual.err &&
(
cd submodule &&
git checkout -q master
)
'
test_expect_success "'fetch.recurseSubmodules=on-demand' works also without .gitmodule entry" '
(
cd downstream &&
git fetch --recurse-submodules
) &&
add_upstream_commit &&
head1=$(git rev-parse --short HEAD) &&
git add submodule &&
git rm .gitmodules &&
git commit -m "new submodule without .gitmodules" &&
printf "" >expect.out &&
head2=$(git rev-parse --short HEAD) &&
echo "From $pwd/." >expect.err.2 &&
echo " $head1..$head2 master -> origin/master" >>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_i18ncmp expect.out 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=$(pwd)/trace.out git fetch --jobs 7 &&
grep "7 tasks" trace.out &&
git config submodule.fetchJobs 8 &&
GIT_TRACE=$(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 &&
# NEEDSWORK: we omitted --recursive for the submodule update here since
# that does not work. See test 7001 for mv "moving nested submodules"
# for details. Once that is fixed we should add the --recursive option
# here.
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_done