# \[PATCH 6/9\] clone: learn about the possibly-configured default branch name

- From: Johannes Schindelin via GitGitGadget \<hidden\>
- Date: 2020-06-10 21:19:45 
- List: git
- Page: https://ratatoskr.run/git/2020/06/7849077
- Thread: https://ratatoskr.run/git/2020/06/7849072/t.md

```text
From: Johannes Schindelin <redacted>

When cloning a repository without any branches, Git chooses a default
branch name for the as-yet unborn branch.

Now that we can configure what the default branch name should be, we
will want `git clone` to respect that setting.

Signed-off-by: Johannes Schindelin <redacted>
---
 builtin/clone.c         | 14 +++++++++++---
 t/t5609-clone-branch.sh |  9 +++++++++
 2 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/builtin/clone.c b/builtin/clone.c
index cb48a291caf..a21d3e99f82 100644
--- a/builtin/clone.c
+++ b/builtin/clone.c
@@ -1263,9 +1263,17 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
 		remote_head_points_at = NULL;
 		remote_head = NULL;
 		option_no_checkout = 1;
-		if (!option_bare)
-			install_branch_config(0, "master", option_origin,
-					      "refs/heads/master");
+		if (!option_bare) {
+			char *default_branch = git_default_branch_name(0);
+			const char *nick;
+
+			if (!skip_prefix(default_branch, "refs/heads/", &nick))
+				BUG("unexpected default branch '%s'",
+				    default_branch);
+			install_branch_config(0, nick, option_origin,
+					      default_branch);
+			free(default_branch);
+		}
 	}
 
 	write_refspec_config(src_ref_prefix, our_head_points_at,
diff --git a/t/t5609-clone-branch.sh b/t/t5609-clone-branch.sh
index 6e7a7be0522..66af3ac2669 100755
--- a/t/t5609-clone-branch.sh
+++ b/t/t5609-clone-branch.sh
@@ -67,4 +67,13 @@ test_expect_success 'clone -b not allowed with empty repos' '
 	test_must_fail git clone -b branch empty clone-branch-empty
 '
 
+test_expect_success 'chooses correct default branch name' '
+	GIT_TEST_DEFAULT_BRANCH_NAME= \
+		git -c core.defaultBranchName=up clone empty whats-up &&
+	test_write_lines refs/heads/up refs/heads/up >expect &&
+	git -C whats-up symbolic-ref HEAD >actual &&
+	git -C whats-up config branch.up.merge >>actual &&
+	test_cmp expect actual
+'
+
 test_done
-- 
gitgitgadget

```