sequencer: improve error message when an OID could not be parsed

The interactive rebase simply complains about an "invalid line" when the
object hash of, say, a `pick` line could not be parsed.

Let's tell the user what happened in a little more detail.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/sequencer.c b/sequencer.c
index 95dda23eee450d1d60a70434d254071c6c05146b..f91062718dd9ddfbf9e49ad2844485edeb1af1a8 100644 (file)
--- a/sequencer.c
+++ b/sequencer.c
@@ -2137,7 +2137,8 @@ static int parse_insn_line(struct repository *r, struct todo_item *item,
        item->arg_len = (int)(eol - item->arg);
 
        if (status < 0)
-               return -1;
+               return error(_("could not parse '%.*s'"),
+                            (int)(end_of_object_name - bol), bol);
 
        item->commit = lookup_commit_reference(r, &commit_oid);
        return !item->commit;