git-commit-vandalism/t/t7407-submodule-foreach.sh
Johan Herland 15fc56a853 git submodule foreach: Add --recursive to recurse into nested submodules
In very large and hierarchically structured projects, one may encounter
nested submodules. In these situations, it is valuable to not only operate
on all the submodules in the current repo (which is what is currently done
by 'git submodule foreach'), but also to operate on all submodules at all
levels (i.e. recursing into nested submodules as well).

This patch teaches the new --recursive option to the 'git submodule foreach'
command. The patch also includes documentation and selftests.

Signed-off-by: Johan Herland <johan@herland.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-08-18 22:57:37 -07:00

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#!/bin/sh
#
# Copyright (c) 2009 Johan Herland
#
test_description='Test "git submodule foreach"
This test verifies that "git submodule foreach" correctly visits all submodules
that are currently checked out.
'
. ./test-lib.sh
test_expect_success 'setup a submodule tree' '
echo file > file &&
git add file &&
test_tick &&
git commit -m upstream
git clone . super &&
git clone super submodule &&
(
cd super &&
git submodule add ../submodule sub1 &&
git submodule add ../submodule sub2 &&
git submodule add ../submodule sub3 &&
git config -f .gitmodules --rename-section \
submodule.sub1 submodule.foo1 &&
git config -f .gitmodules --rename-section \
submodule.sub2 submodule.foo2 &&
git config -f .gitmodules --rename-section \
submodule.sub3 submodule.foo3 &&
git add .gitmodules
test_tick &&
git commit -m "submodules" &&
git submodule init sub1 &&
git submodule init sub2 &&
git submodule init sub3
) &&
(
cd submodule &&
echo different > file &&
git add file &&
test_tick &&
git commit -m "different"
) &&
(
cd super &&
(
cd sub3 &&
git pull
) &&
git add sub3 &&
test_tick &&
git commit -m "update sub3"
)
'
sub1sha1=$(cd super/sub1 && git rev-parse HEAD)
sub3sha1=$(cd super/sub3 && git rev-parse HEAD)
cat > expect <<EOF
Entering 'sub1'
foo1-sub1-$sub1sha1
Entering 'sub3'
foo3-sub3-$sub3sha1
EOF
test_expect_success 'test basic "submodule foreach" usage' '
git clone super clone &&
(
cd clone &&
git submodule update --init -- sub1 sub3 &&
git submodule foreach "echo \$name-\$path-\$sha1" > ../actual
) &&
test_cmp expect actual
'
test_expect_success 'setup nested submodules' '
git clone submodule nested1 &&
git clone submodule nested2 &&
git clone submodule nested3 &&
(
cd nested3 &&
git submodule add ../submodule submodule &&
test_tick &&
git commit -m "submodule" &&
git submodule init submodule
) &&
(
cd nested2 &&
git submodule add ../nested3 nested3 &&
test_tick &&
git commit -m "nested3" &&
git submodule init nested3
) &&
(
cd nested1 &&
git submodule add ../nested2 nested2 &&
test_tick &&
git commit -m "nested2" &&
git submodule init nested2
) &&
(
cd super &&
git submodule add ../nested1 nested1 &&
test_tick &&
git commit -m "nested1" &&
git submodule init nested1
)
'
test_expect_success 'use "submodule foreach" to checkout 2nd level submodule' '
git clone super clone2 &&
(
cd clone2 &&
test ! -d sub1/.git &&
test ! -d sub2/.git &&
test ! -d sub3/.git &&
test ! -d nested1/.git &&
git submodule update --init &&
test -d sub1/.git &&
test -d sub2/.git &&
test -d sub3/.git &&
test -d nested1/.git &&
test ! -d nested1/nested2/.git &&
git submodule foreach "git submodule update --init" &&
test -d nested1/nested2/.git &&
test ! -d nested1/nested2/nested3/.git
)
'
test_expect_success 'use "foreach --recursive" to checkout all submodules' '
(
cd clone2 &&
git submodule foreach --recursive "git submodule update --init" &&
test -d nested1/nested2/nested3/.git &&
test -d nested1/nested2/nested3/submodule/.git
)
'
cat > expect <<EOF
Entering 'nested1'
Entering 'nested1/nested2'
Entering 'nested1/nested2/nested3'
Entering 'nested1/nested2/nested3/submodule'
Entering 'sub1'
Entering 'sub2'
Entering 'sub3'
EOF
test_expect_success 'test messages from "foreach --recursive"' '
(
cd clone2 &&
git submodule foreach --recursive "true" > ../actual
) &&
test_cmp expect actual
'
cat > expect <<EOF
nested1-nested1
nested2-nested2
nested3-nested3
submodule-submodule
foo1-sub1
foo2-sub2
foo3-sub3
EOF
test_expect_success 'test "foreach --quiet --recursive"' '
(
cd clone2 &&
git submodule foreach -q --recursive "echo \$name-\$path" > ../actual
) &&
test_cmp expect actual
'
test_done