branch: error message deleting a branch in use

Let's update the error message we show when the user tries to delete a
branch which is being used in another worktree, following the guideline
reasoned in 4970bedef2 (branch: update the message to refuse touching a
branch in-use, 2023-07-21).

Signed-off-by: Rubén Justo <rjusto@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/branch.c b/builtin/branch.c
index e8ff3ec..a399256 100644 (file)
--- a/builtin/branch.c
+++ b/builtin/branch.c
@@ -262,7 +262,7 @@ static int delete_branches(int argc, const char **argv, int force, int kinds,
                        const char *path;
                        if ((path = branch_checked_out(name))) {
                                error(_("Cannot delete branch '%s' "
-                                       "checked out at '%s'"),
+                                       "used by worktree at '%s'"),
                                      bname.buf, path);
                                ret = 1;
                                continue;

diff --git a/t/t3200-branch.sh b/t/t3200-branch.sh
index daf1666..080e4f2 100755 (executable)
--- a/t/t3200-branch.sh
+++ b/t/t3200-branch.sh
@@ -942,7 +942,19 @@ test_expect_success 'test deleting branch without config' '
 test_expect_success 'deleting currently checked out branch fails' '
        git worktree add -b my7 my7 &&
        test_must_fail git -C my7 branch -d my7 &&
-       test_must_fail git branch -d my7 &&
+       test_must_fail git branch -d my7 2>actual &&
+       grep "^error: Cannot delete branch .my7. used by worktree at " actual &&
+       rm -r my7 &&
+       git worktree prune
+'
+
+test_expect_success 'deleting in-use branch fails' '
+       git worktree add my7 &&
+       test_commit -C my7 bt7 &&
+       git -C my7 bisect start HEAD HEAD~2 &&
+       test_must_fail git -C my7 branch -d my7 &&
+       test_must_fail git branch -d my7 2>actual &&
+       grep "^error: Cannot delete branch .my7. used by worktree at " actual &&
        rm -r my7 &&
        git worktree prune
 '