[PATCH v2 09/21] blame: report error on open if graft_file is a directory

[Nguyễn Thái Ngọc Duy]

Signed-off-by: Nguyễn Thái Ngọc Duy <pclo...@gmail.com>
---
 builtin/blame.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/builtin/blame.c b/builtin/blame.c
index 07506a3e45..1648b396dc 100644
--- a/builtin/blame.c
+++ b/builtin/blame.c
@@ -2071,10 +2071,12 @@ static int prepare_lines(struct scoreboard *sb)
  */
 static int read_ancestry(const char *graft_file)
 {
-       FILE *fp = fopen(graft_file, "r");
+       FILE *fp = fopen_or_warn(graft_file, "r");
        struct strbuf buf = STRBUF_INIT;
+
        if (!fp)
                return -1;
+
        while (!strbuf_getwholeline(&buf, fp, '\n')) {
                /* The format is just "Commit Parent1 Parent2 ...\n" */
                struct commit_graft *graft = read_graft_line(buf.buf, buf.len);
-- 
2.11.0.157.gd943d85