branch_get("HEAD") can return NULL, when we are outside a branch and
the user calls pull --set-upstream. Catch this case and warn the user
to avoid a segfault.
Signed-off-by: Clemens Fruhwirth <clemens@xxxxxxxxxxxxx>
---
builtin/fetch.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/builtin/fetch.c b/builtin/fetch.c
index 9191620e50..1097235b90 100644
--- a/builtin/fetch.c
+++ b/builtin/fetch.c
@@ -1602,6 +1602,10 @@ static int do_fetch(struct transport *transport,
struct ref *rm;
struct ref *source_ref = NULL;
+ if (!branch) {
+ warning(_("no branch detected to use --set-upstream with."));
+ goto skip;
+ }
/*
* We're setting the upstream configuration for the
* current branch. The relevant upstream is the
--
2.31.1
