a908a31c34
Committing involves the following steps: 1. Determine the current value of HEAD (if any). 2. Create the new commit object. 3. Update HEAD. Please note that step 2 can take arbitrarily long, because it might involve the user editing a commit message. If a second process sneaks in a commit during step 2, then the first commit process should fail. This is usually done correctly, because step 3 verifies that HEAD still points at the same commit that it pointed to during step 1. However, if there is a race when creating an *orphan* commit, then the test in step 3 is skipped. Add tests for proper handling of such races. One of the new tests fails. It will be fixed in a moment. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
31 lines
852 B
Bash
Executable File
31 lines
852 B
Bash
Executable File
#!/bin/sh
|
|
|
|
test_description='git commit races'
|
|
. ./test-lib.sh
|
|
|
|
test_expect_failure 'race to create orphan commit' '
|
|
write_script hare-editor <<-\EOF &&
|
|
git commit --allow-empty -m hare
|
|
EOF
|
|
test_must_fail env EDITOR=./hare-editor git commit --allow-empty -m tortoise -e &&
|
|
git show -s --pretty=format:%s >subject &&
|
|
grep hare subject &&
|
|
test -z "$(git show -s --pretty=format:%P)"
|
|
'
|
|
|
|
test_expect_success 'race to create non-orphan commit' '
|
|
write_script airplane-editor <<-\EOF &&
|
|
git commit --allow-empty -m airplane
|
|
EOF
|
|
git checkout --orphan branch &&
|
|
git commit --allow-empty -m base &&
|
|
git rev-parse HEAD >base &&
|
|
test_must_fail env EDITOR=./airplane-editor git commit --allow-empty -m ship -e &&
|
|
git show -s --pretty=format:%s >subject &&
|
|
grep airplane subject &&
|
|
git rev-parse HEAD^ >parent &&
|
|
test_cmp base parent
|
|
'
|
|
|
|
test_done
|