git-commit-vandalism/t/t5403-post-checkout-hook.sh
Phillip Wood 4840002a5f rebase --apply: don't run post-checkout hook if there is an error
The hook should only be run if the worktree and refs were successfully
updated. This primarily affects "rebase --apply" but also "rebase
--merge" when it fast-forwards.

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-01-26 12:08:53 -08:00

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#!/bin/sh
#
# Copyright (c) 2006 Josh England
#
test_description='Test the post-checkout hook.'
GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
. ./test-lib.sh
test_expect_success setup '
mkdir -p .git/hooks &&
write_script .git/hooks/post-checkout <<-\EOF &&
echo "$@" >.git/post-checkout.args
EOF
test_commit one &&
test_commit two &&
test_commit rebase-on-me &&
git reset --hard HEAD^ &&
test_commit three
'
test_expect_success 'post-checkout receives the right arguments with HEAD unchanged ' '
test_when_finished "rm -f .git/post-checkout.args" &&
git checkout main &&
read old new flag <.git/post-checkout.args &&
test $old = $new && test $flag = 1
'
test_expect_success 'post-checkout args are correct with git checkout -b ' '
test_when_finished "rm -f .git/post-checkout.args" &&
git checkout -b new1 &&
read old new flag <.git/post-checkout.args &&
test $old = $new && test $flag = 1
'
test_expect_success 'post-checkout receives the right args with HEAD changed ' '
test_when_finished "rm -f .git/post-checkout.args" &&
git checkout two &&
read old new flag <.git/post-checkout.args &&
test $old != $new && test $flag = 1
'
test_expect_success 'post-checkout receives the right args when not switching branches ' '
test_when_finished "rm -f .git/post-checkout.args" &&
git checkout main -- three.t &&
read old new flag <.git/post-checkout.args &&
test $old = $new && test $flag = 0
'
test_rebase () {
args="$*" &&
test_expect_success "post-checkout is triggered on rebase $args" '
test_when_finished "rm -f .git/post-checkout.args" &&
git checkout -B rebase-test main &&
rm -f .git/post-checkout.args &&
git rebase $args rebase-on-me &&
read old new flag <.git/post-checkout.args &&
test_cmp_rev main $old &&
test_cmp_rev rebase-on-me $new &&
test $flag = 1
'
test_expect_success "post-checkout is triggered on rebase $args with fast-forward" '
test_when_finished "rm -f .git/post-checkout.args" &&
git checkout -B ff-rebase-test rebase-on-me^ &&
rm -f .git/post-checkout.args &&
git rebase $args rebase-on-me &&
read old new flag <.git/post-checkout.args &&
test_cmp_rev rebase-on-me^ $old &&
test_cmp_rev rebase-on-me $new &&
test $flag = 1
'
test_expect_success "rebase $args fast-forward branch checkout runs post-checkout hook" '
test_when_finished "test_might_fail git rebase --abort" &&
test_when_finished "rm -f .git/post-checkout.args" &&
git update-ref refs/heads/rebase-fast-forward three &&
git checkout two &&
rm -f .git/post-checkout.args &&
git rebase $args HEAD rebase-fast-forward &&
read old new flag <.git/post-checkout.args &&
test_cmp_rev two $old &&
test_cmp_rev three $new &&
test $flag = 1
'
test_expect_success "rebase $args checkout does not remove untracked files" '
test_when_finished "test_might_fail git rebase --abort" &&
test_when_finished "rm -f .git/post-checkout.args" &&
git update-ref refs/heads/rebase-fast-forward three &&
git checkout two &&
rm -f .git/post-checkout.args &&
echo untracked >three.t &&
test_when_finished "rm three.t" &&
test_must_fail git rebase $args HEAD rebase-fast-forward 2>err &&
grep "untracked working tree files would be overwritten by checkout" err &&
test_path_is_missing .git/post-checkout.args
'
}
test_rebase --apply &&
test_rebase --merge
test_expect_success 'post-checkout hook is triggered by clone' '
mkdir -p templates/hooks &&
write_script templates/hooks/post-checkout <<-\EOF &&
echo "$@" >"$GIT_DIR/post-checkout.args"
EOF
git clone --template=templates . clone3 &&
test -f clone3/.git/post-checkout.args
'
test_done