[PATCH v2 1/4] am: fail if no author line is given in --rebasing mode

[Stephan Beyer <s-beyer@xxxxxxx>]

This prevents a potential segmentation fault.

Signed-off-by: Stephan Beyer <s-beyer@xxxxxxx>
---
 builtin/am.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/builtin/am.c b/builtin/am.c
index 1aea657a7f..71da34913c 100644
--- a/builtin/am.c
+++ b/builtin/am.c
@@ -1272,7 +1272,8 @@ static void get_commit_info(struct am_state *state, struct commit *commit)
 	buffer = logmsg_reencode(commit, NULL, get_commit_output_encoding());

 	ident_line = find_commit_header(buffer, "author", &ident_len);
-
+	if (!ident_line)
+		die(_("no author line"));
 	if (split_ident_line(&id, ident_line, ident_len) < 0)
 		die(_("invalid ident line: %.*s"), (int)ident_len, ident_line);

--
2.23.0.43.g31ebfd7ae6.dirty