Merge branch 'em/checkout-orphan'

* em/checkout-orphan:
  log_ref_setup: don't return stack-allocated array
  bash completion: add --orphan to 'git checkout'
  t3200: test -l with core.logAllRefUpdates options
  checkout --orphan: respect -l option always
  refs: split log_ref_write logic into log_ref_setup
  Documentation: alter checkout --orphan description

1 files changed, 57 insertions, 21 deletions

diff --git a/t/t2017-checkout-orphan.sh b/t/t2017-checkout-orphan.sh
index a8297c61b..be88d4b5e 100755
--- a/t/t2017-checkout-orphan.sh
+++ b/t/t2017-checkout-orphan.sh
@@ -49,6 +49,62 @@ test_expect_success '--orphan must be rejected with -b' '
 	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 = "$(git symbolic-ref HEAD)" &&
+	test_must_fail git rev-parse --verify HEAD^
+'
+
+test_expect_success '--orphan makes reflog by default' '
+	git checkout master &&
+	git config --unset core.logAllRefUpdates &&
+	git checkout --orphan delta &&
+	! test -f .git/logs/refs/heads/delta &&
+	test_must_fail PAGER= git reflog show delta &&
+	git commit -m Delta &&
+	test -f .git/logs/refs/heads/delta &&
+	PAGER= git reflog show delta
+'
+
+test_expect_success '--orphan does not make reflog when core.logAllRefUpdates = false' '
+	git checkout master &&
+	git config core.logAllRefUpdates false &&
+	git checkout --orphan epsilon &&
+	! test -f .git/logs/refs/heads/epsilon &&
+	test_must_fail PAGER= git reflog show epsilon &&
+	git commit -m Epsilon &&
+	! test -f .git/logs/refs/heads/epsilon &&
+	test_must_fail PAGER= git reflog show epsilon
+'
+
+test_expect_success '--orphan with -l makes reflog when core.logAllRefUpdates = false' '
+	git checkout master &&
+	git checkout -l --orphan zeta &&
+	test -f .git/logs/refs/heads/zeta &&
+	test_must_fail PAGER= git reflog show zeta &&
+	git commit -m Zeta &&
+	PAGER= git reflog show zeta
+'
+
+test_expect_success 'giving up --orphan not committed when -l and core.logAllRefUpdates = false deletes reflog' '
+	git checkout master &&
+	git checkout -l --orphan eta &&
+	test -f .git/logs/refs/heads/eta &&
+	test_must_fail PAGER= git reflog show eta &&
+	git checkout master &&
+	! test -f .git/logs/refs/heads/eta &&
+	test_must_fail PAGER= git reflog show eta
+'
+
 test_expect_success '--orphan is rejected with an existing name' '
 	git checkout master &&
 	test_must_fail git checkout --orphan master &&
@@ -60,31 +116,11 @@ test_expect_success '--orphan refuses to switch if a merge is needed' '
 	git reset --hard &&
 	echo local >>"$TEST_FILE" &&
 	cat "$TEST_FILE" >"$TEST_FILE.saved" &&
-	test_must_fail git checkout --orphan gamma master^ &&
+	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 '--orphan does not mix well with -t' '
-	git checkout master &&
-	test_must_fail git checkout -t master --orphan gamma &&
-	test refs/heads/master = "$(git symbolic-ref HEAD)"
-'
-
-test_expect_success '--orphan ignores branch.autosetupmerge' '
-	git checkout -f master &&
-	git config branch.autosetupmerge always &&
-	git checkout --orphan delta &&
-	test -z "$(git config branch.delta.merge)" &&
-	test refs/heads/delta = "$(git symbolic-ref HEAD)" &&
-	test_must_fail git rev-parse --verify HEAD^
-'
-
-test_expect_success '--orphan does not mix well with -l' '
-	git checkout -f master &&
-	test_must_fail git checkout -l --orphan gamma
-'
-
 test_done