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[PATCH v4 3/4] receive-pack: Protect current branch for bare repository worktree

From
Anders Kaseorg <andersk@mit.edu>
Date
Nov 9, 2021, 03:00 UTC
Message-ID
<20211109030028.2196416-3-andersk@mit.edu>
In-Reply-To
<20211109030028.2196416-1-andersk@mit.edu>

A bare repository won’t have a working tree at "..", but it may still have separate working trees created with git worktree. We should protect the current branch of such working trees from being updated or deleted, according to receive.denyCurrentBranch.

Signed-off-by: Anders Kaseorg <andersk@mit.edu>
---
 builtin/receive-pack.c |  4 +---
 t/t5516-fetch-push.sh  | 12 ++++++++++++
 2 files changed, 13 insertions(+), 3 deletions(-)
diff --git a/builtin/receive-pack.c b/builtin/receive-pack.c
index cf575280fc..5a3c6d8423 100644
--- a/builtin/receive-pack.c
+++ b/builtin/receive-pack.c
@@ -1452,8 +1452,6 @@ static const char *update_worktree(unsigned char *sha1, const struct worktree *w
 	const char *retval, *git_dir;
 	struct strvec env = STRVEC_INIT;
 
-	if (is_bare_repository())
-		return "denyCurrentBranch = updateInstead needs a worktree";
 	git_dir = get_worktree_git_dir(worktree);
 
 	strvec_pushf(&env, "GIT_DIR=%s", absolute_path(git_dir));
@@ -1476,7 +1474,7 @@ static const char *update(struct command *cmd, struct shallow_info *si)
 	struct object_id *old_oid = &cmd->old_oid;
 	struct object_id *new_oid = &cmd->new_oid;
 	int do_update_worktree = 0;
-	const struct worktree *worktree = is_bare_repository() ? NULL : find_shared_symref("HEAD", name);
+	const struct worktree *worktree = find_shared_symref("HEAD", name);
 
 	/* only refs/... are allowed */
 	if (!starts_with(name, "refs/") || check_refname_format(name + 5, 0)) {
diff --git a/t/t5516-fetch-push.sh b/t/t5516-fetch-push.sh
index 2c2d6fa6e7..06cd34b0db 100755
--- a/t/t5516-fetch-push.sh
+++ b/t/t5516-fetch-push.sh
@@ -1772,6 +1772,18 @@ test_expect_success 'denyCurrentBranch and worktrees' '
 	test_must_fail git -C cloned push --delete origin new-wt
 '
 
+test_expect_success 'denyCurrentBranch and bare repository worktrees' '
+	test_when_finished "rm -fr bare.git" &&
+	git clone --bare . bare.git &&
+	git -C bare.git worktree add wt &&
+	test_commit grape &&
+	test_config -C bare.git receive.denyCurrentBranch refuse &&
+	test_must_fail git push bare.git HEAD:wt &&
+	test_config -C bare.git receive.denyCurrentBranch updateInstead &&
+	git push bare.git HEAD:wt &&
+	test_must_fail git push --delete bare.git wt
+'
+
 test_expect_success 'refuse fetch to current branch of worktree' '
 	test_when_finished "git worktree remove --force wt" &&
 	git worktree add wt &&
-- 
2.33.1
Previous: Anders KaseorgNext: Johannes Schindelin
Message 10 of 34 in “receive-pack: Protect current branch for bare repository worktree”
  1. 2/2 receive-pack: Protect current branch for bare repository worktreeAnders Kaseorg, Nov 8, 2021
  2. Junio C HamanoNov 8, 2021
  3. Junio C HamanoNov 9, 2021
  4. Johannes SchindelinNov 9, 2021
  5. Anders KaseorgNov 9, 2021
  6. 1/4 fetch: Protect branches checked out in all worktreesAnders Kaseorg, Nov 9, 2021
  7. 2/4 receive-pack: Clean dead code from update_worktree()Anders Kaseorg, Nov 9, 2021
  8. Johannes SchindelinNov 9, 2021
  9. Anders KaseorgNov 9, 2021
  10. 3/4 receive-pack: Protect current branch for bare repository worktreeAnders Kaseorg, Nov 9, 2021
  11. Johannes SchindelinNov 9, 2021
  12. Anders KaseorgNov 9, 2021
  13. 1/4 fetch: Protect branches checked out in all worktreesAnders Kaseorg, Nov 9, 2021
  14. 3/4 receive-pack: Protect current branch for bare repository worktreeAnders Kaseorg, Nov 9, 2021
  15. Ævar Arnfjörð BjarmasonNov 10, 2021
  16. 4/4 branch: Protect branches checked out in all worktreesAnders Kaseorg, Nov 9, 2021
  17. Ævar Arnfjörð BjarmasonNov 10, 2021
  18. 2/4 receive-pack: Clean dead code from update_worktree()Anders Kaseorg, Nov 9, 2021
  19. Ævar Arnfjörð BjarmasonNov 10, 2021
  20. Johannes SchindelinNov 10, 2021
  21. Ævar Arnfjörð BjarmasonNov 10, 2021
  22. Johannes SchindelinNov 10, 2021
  23. Junio C HamanoNov 10, 2021
  24. Junio C HamanoNov 11, 2021
  25. Junio C HamanoNov 10, 2021
  26. Anders KaseorgNov 10, 2021
  27. 4/4 branch: Protect branches checked out in all worktreesAnders Kaseorg, Nov 9, 2021
  28. Johannes SchindelinNov 9, 2021
  29. Johannes SchindelinNov 9, 2021
  30. Anders KaseorgNov 9, 2021
  31. Junio C HamanoNov 9, 2021
  32. Junio C HamanoNov 9, 2021
  33. Anders KaseorgNov 9, 2021
  34. Johannes SchindelinNov 9, 2021

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