mirror of
https://github.com/git/git.git
synced 2024-11-28 04:23:30 +08:00
8ced1aa08f
abe199808c (git checkout -b: allow switching out of an unborn branch)
introduced a bug demonstrated by
git checkout --orphan foo
git checkout --detach
git symbolic-ref HEAD
which gives 'refs/heads/(null)'.
This happens because we strbuf_addf(&branch_ref, "refs/heads/%s",
opts->new_branch) when opts->new_branch can be NULL for --detach.
Catch and forbid this case, adding a test to t2017 to catch it in
future.
Signed-off-by: Chris Webb <chris@arachsys.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
126 lines
3.6 KiB
Bash
Executable File
126 lines
3.6 KiB
Bash
Executable File
#!/bin/sh
|
|
#
|
|
# Copyright (c) 2010 Erick Mattos
|
|
#
|
|
|
|
test_description='git checkout --orphan
|
|
|
|
Main Tests for --orphan functionality.'
|
|
|
|
. ./test-lib.sh
|
|
|
|
TEST_FILE=foo
|
|
|
|
test_expect_success 'Setup' '
|
|
echo "Initial" >"$TEST_FILE" &&
|
|
git add "$TEST_FILE" &&
|
|
git commit -m "First Commit" &&
|
|
test_tick &&
|
|
echo "State 1" >>"$TEST_FILE" &&
|
|
git add "$TEST_FILE" &&
|
|
test_tick &&
|
|
git commit -m "Second Commit"
|
|
'
|
|
|
|
test_expect_success '--orphan creates a new orphan branch from HEAD' '
|
|
git checkout --orphan alpha &&
|
|
test_must_fail git rev-parse --verify HEAD &&
|
|
test "refs/heads/alpha" = "$(git symbolic-ref HEAD)" &&
|
|
test_tick &&
|
|
git commit -m "Third Commit" &&
|
|
test_must_fail git rev-parse --verify HEAD^ &&
|
|
git diff-tree --quiet master alpha
|
|
'
|
|
|
|
test_expect_success '--orphan creates a new orphan branch from <start_point>' '
|
|
git checkout master &&
|
|
git checkout --orphan beta master^ &&
|
|
test_must_fail git rev-parse --verify HEAD &&
|
|
test "refs/heads/beta" = "$(git symbolic-ref HEAD)" &&
|
|
test_tick &&
|
|
git commit -m "Fourth Commit" &&
|
|
test_must_fail git rev-parse --verify HEAD^ &&
|
|
git diff-tree --quiet master^ beta
|
|
'
|
|
|
|
test_expect_success '--orphan must be rejected with -b' '
|
|
git checkout master &&
|
|
test_must_fail git checkout --orphan new -b newer &&
|
|
test refs/heads/master = "$(git symbolic-ref HEAD)"
|
|
'
|
|
|
|
test_expect_success '--orphan must be rejected with -t' '
|
|
git checkout master &&
|
|
test_must_fail git checkout --orphan new -t master &&
|
|
test refs/heads/master = "$(git symbolic-ref HEAD)"
|
|
'
|
|
|
|
test_expect_success '--orphan ignores branch.autosetupmerge' '
|
|
git checkout master &&
|
|
git config branch.autosetupmerge always &&
|
|
git checkout --orphan gamma &&
|
|
test -z "$(git config branch.gamma.merge)" &&
|
|
test refs/heads/gamma = "$(git symbolic-ref HEAD)" &&
|
|
test_must_fail git rev-parse --verify HEAD^
|
|
'
|
|
|
|
test_expect_success '--orphan makes reflog by default' '
|
|
git checkout master &&
|
|
git config --unset core.logAllRefUpdates &&
|
|
git checkout --orphan delta &&
|
|
test_must_fail git rev-parse --verify delta@{0} &&
|
|
git commit -m Delta &&
|
|
git rev-parse --verify delta@{0}
|
|
'
|
|
|
|
test_expect_success '--orphan does not make reflog when core.logAllRefUpdates = false' '
|
|
git checkout master &&
|
|
git config core.logAllRefUpdates false &&
|
|
git checkout --orphan epsilon &&
|
|
test_must_fail git rev-parse --verify epsilon@{0} &&
|
|
git commit -m Epsilon &&
|
|
test_must_fail git rev-parse --verify epsilon@{0}
|
|
'
|
|
|
|
test_expect_success '--orphan with -l makes reflog when core.logAllRefUpdates = false' '
|
|
git checkout master &&
|
|
git checkout -l --orphan zeta &&
|
|
test_must_fail git rev-parse --verify zeta@{0} &&
|
|
git commit -m Zeta &&
|
|
git rev-parse --verify zeta@{0}
|
|
'
|
|
|
|
test_expect_success 'giving up --orphan not committed when -l and core.logAllRefUpdates = false deletes reflog' '
|
|
git checkout master &&
|
|
git checkout -l --orphan eta &&
|
|
test_must_fail git rev-parse --verify eta@{0} &&
|
|
git checkout master &&
|
|
test_must_fail git rev-parse --verify eta@{0}
|
|
'
|
|
|
|
test_expect_success '--orphan is rejected with an existing name' '
|
|
git checkout master &&
|
|
test_must_fail git checkout --orphan master &&
|
|
test refs/heads/master = "$(git symbolic-ref HEAD)"
|
|
'
|
|
|
|
test_expect_success '--orphan refuses to switch if a merge is needed' '
|
|
git checkout master &&
|
|
git reset --hard &&
|
|
echo local >>"$TEST_FILE" &&
|
|
cat "$TEST_FILE" >"$TEST_FILE.saved" &&
|
|
test_must_fail git checkout --orphan new master^ &&
|
|
test refs/heads/master = "$(git symbolic-ref HEAD)" &&
|
|
test_cmp "$TEST_FILE" "$TEST_FILE.saved" &&
|
|
git diff-index --quiet --cached HEAD &&
|
|
git reset --hard
|
|
'
|
|
|
|
test_expect_success 'cannot --detach on an unborn branch' '
|
|
git checkout master &&
|
|
git checkout --orphan new &&
|
|
test_must_fail git checkout --detach
|
|
'
|
|
|
|
test_done
|