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git/t/t7407-submodule-foreach.sh
Junio C Hamano b2a0afd96a Merge branch 'ak/submodule-foreach-quoting'
A behavior change, but a worthwhile one: "git submodule foreach"
was treating its arguments as part of a single command to be
concatenated and passed to a shell, making writing buggy
scripts too easy.

This patch preserves the old "just pass it to the shell" behavior
when a single argument is passed to 'git submodule foreach' and
moves to a new "skip the shell and use the arguments passed
unmolested" behavior when more than one argument is passed.

The old behavior (always concatenating and passing to the shell)
was similar to the 'ssh' command, while the new behavior (switching
on the number of arguments) is what 'xterm -e' does.

May need more thought to make sure this change is advertised well
so that scripts that used multiple arguments but added their own
extra layer of quoting are not broken.

* ak/submodule-foreach-quoting:
  submodule foreach: skip eval for more than one argument
2013-12-05 12:53:17 -08:00

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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)
pwd=$(pwd)
cat > expect <<EOF
Entering 'sub1'
$pwd/clone-foo1-sub1-$sub1sha1
Entering 'sub3'
$pwd/clone-foo3-sub3-$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 \$toplevel-\$name-\$path-\$sha1" > ../actual &&
git config foo.bar zar &&
git submodule foreach "git config --file \"\$toplevel/.git/config\" foo.bar"
) &&
test_i18ncmp expect actual
'
cat >expect <<EOF
Entering '../sub1'
$pwd/clone-foo1-../sub1-$sub1sha1
Entering '../sub3'
$pwd/clone-foo3-../sub3-$sub3sha1
EOF
test_expect_success 'test "submodule foreach" from subdirectory' '
mkdir clone/sub &&
(
cd clone/sub &&
git submodule foreach "echo \$toplevel-\$name-\$sm_path-\$sha1" >../../actual
) &&
test_i18ncmp 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_must_fail git rev-parse --resolve-git-dir sub1/.git &&
test_must_fail git rev-parse --resolve-git-dir sub2/.git &&
test_must_fail git rev-parse --resolve-git-dir sub3/.git &&
test_must_fail git rev-parse --resolve-git-dir nested1/.git &&
git submodule update --init &&
git rev-parse --resolve-git-dir sub1/.git &&
git rev-parse --resolve-git-dir sub2/.git &&
git rev-parse --resolve-git-dir sub3/.git &&
git rev-parse --resolve-git-dir nested1/.git &&
test_must_fail git rev-parse --resolve-git-dir nested1/nested2/.git &&
git submodule foreach "git submodule update --init" &&
git rev-parse --resolve-git-dir nested1/nested2/.git &&
test_must_fail git rev-parse --resolve-git-dir nested1/nested2/nested3/.git
)
'
test_expect_success 'use "foreach --recursive" to checkout all submodules' '
(
cd clone2 &&
git submodule foreach --recursive "git submodule update --init" &&
git rev-parse --resolve-git-dir nested1/nested2/nested3/.git &&
git rev-parse --resolve-git-dir 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_i18ncmp 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_expect_success 'use "update --recursive" to checkout all submodules' '
git clone super clone3 &&
(
cd clone3 &&
test_must_fail git rev-parse --resolve-git-dir sub1/.git &&
test_must_fail git rev-parse --resolve-git-dir sub2/.git &&
test_must_fail git rev-parse --resolve-git-dir sub3/.git &&
test_must_fail git rev-parse --resolve-git-dir nested1/.git &&
git submodule update --init --recursive &&
git rev-parse --resolve-git-dir sub1/.git &&
git rev-parse --resolve-git-dir sub2/.git &&
git rev-parse --resolve-git-dir sub3/.git &&
git rev-parse --resolve-git-dir nested1/.git &&
git rev-parse --resolve-git-dir nested1/nested2/.git &&
git rev-parse --resolve-git-dir nested1/nested2/nested3/.git &&
git rev-parse --resolve-git-dir nested1/nested2/nested3/submodule/.git
)
'
nested1sha1=$(cd clone3/nested1 && git rev-parse HEAD)
nested2sha1=$(cd clone3/nested1/nested2 && git rev-parse HEAD)
nested3sha1=$(cd clone3/nested1/nested2/nested3 && git rev-parse HEAD)
submodulesha1=$(cd clone3/nested1/nested2/nested3/submodule && git rev-parse HEAD)
sub1sha1=$(cd clone3/sub1 && git rev-parse HEAD)
sub2sha1=$(cd clone3/sub2 && git rev-parse HEAD)
sub3sha1=$(cd clone3/sub3 && git rev-parse HEAD)
sub1sha1_short=$(cd clone3/sub1 && git rev-parse --short HEAD)
sub2sha1_short=$(cd clone3/sub2 && git rev-parse --short HEAD)
cat > expect <<EOF
$nested1sha1 nested1 (heads/master)
$nested2sha1 nested1/nested2 (heads/master)
$nested3sha1 nested1/nested2/nested3 (heads/master)
$submodulesha1 nested1/nested2/nested3/submodule (heads/master)
$sub1sha1 sub1 ($sub1sha1_short)
$sub2sha1 sub2 ($sub2sha1_short)
$sub3sha1 sub3 (heads/master)
EOF
test_expect_success 'test "status --recursive"' '
(
cd clone3 &&
git submodule status --recursive > ../actual
) &&
test_cmp expect actual
'
sed -e "/nested2 /s/.*/+$nested2sha1 nested1\/nested2 (file2~1)/;/sub[1-3]/d" < expect > expect2
mv -f expect2 expect
test_expect_success 'ensure "status --cached --recursive" preserves the --cached flag' '
(
cd clone3 &&
(
cd nested1/nested2 &&
test_commit file2
) &&
git submodule status --cached --recursive -- nested1 > ../actual
) &&
test_cmp expect actual
'
test_expect_success 'use "git clone --recursive" to checkout all submodules' '
git clone --recursive super clone4 &&
(
cd clone4 &&
git rev-parse --resolve-git-dir .git &&
git rev-parse --resolve-git-dir sub1/.git &&
git rev-parse --resolve-git-dir sub2/.git &&
git rev-parse --resolve-git-dir sub3/.git &&
git rev-parse --resolve-git-dir nested1/.git &&
git rev-parse --resolve-git-dir nested1/nested2/.git &&
git rev-parse --resolve-git-dir nested1/nested2/nested3/.git &&
git rev-parse --resolve-git-dir nested1/nested2/nested3/submodule/.git
)
'
test_expect_success 'test "update --recursive" with a flag with spaces' '
git clone super "common objects" &&
git clone super clone5 &&
(
cd clone5 &&
test_must_fail git rev-parse --resolve-git-dir d nested1/.git &&
git submodule update --init --recursive --reference="$(dirname "$PWD")/common objects" &&
git rev-parse --resolve-git-dir nested1/.git &&
git rev-parse --resolve-git-dir nested1/nested2/.git &&
git rev-parse --resolve-git-dir nested1/nested2/nested3/.git &&
test -f .git/modules/nested1/objects/info/alternates &&
test -f .git/modules/nested1/modules/nested2/objects/info/alternates &&
test -f .git/modules/nested1/modules/nested2/modules/nested3/objects/info/alternates
)
'
test_expect_success 'use "update --recursive nested1" to checkout all submodules rooted in nested1' '
git clone super clone6 &&
(
cd clone6 &&
test_must_fail git rev-parse --resolve-git-dir sub1/.git &&
test_must_fail git rev-parse --resolve-git-dir sub2/.git &&
test_must_fail git rev-parse --resolve-git-dir sub3/.git &&
test_must_fail git rev-parse --resolve-git-dir nested1/.git &&
git submodule update --init --recursive -- nested1 &&
test_must_fail git rev-parse --resolve-git-dir sub1/.git &&
test_must_fail git rev-parse --resolve-git-dir sub2/.git &&
test_must_fail git rev-parse --resolve-git-dir sub3/.git &&
git rev-parse --resolve-git-dir nested1/.git &&
git rev-parse --resolve-git-dir nested1/nested2/.git &&
git rev-parse --resolve-git-dir nested1/nested2/nested3/.git &&
git rev-parse --resolve-git-dir nested1/nested2/nested3/submodule/.git
)
'
test_expect_success 'command passed to foreach retains notion of stdin' '
(
cd super &&
git submodule foreach echo success >../expected &&
yes | git submodule foreach "read y && test \"x\$y\" = xy && echo success" >../actual
) &&
test_cmp expected actual
'
test_expect_success 'command passed to foreach --recursive retains notion of stdin' '
(
cd clone2 &&
git submodule foreach --recursive echo success >../expected &&
yes | git submodule foreach --recursive "read y && test \"x\$y\" = xy && echo success" >../actual
) &&
test_cmp expected actual
'
test_expect_success 'multi-argument command passed to foreach is not shell-evaluated twice' '
(
cd super &&
git submodule foreach "echo \\\"quoted\\\"" > ../expected &&
git submodule foreach echo \"quoted\" > ../actual
) &&
test_cmp expected actual
'
test_done