add -p: improve error messages

diff --git a/sequencer.c b/sequencer.c
index e9fef58ba03da6f23c88f3f89ad3a11ea81752ca..4d3f60594cbf0e9ddf2ea78e8c58eca312b4cac0 100644 (file)
--- a/sequencer.c
+++ b/sequencer.c
@@ -1261,18 +1261,23 @@ static int parse_insn_line(struct todo_item *item, const char *bol, char *eol)
        if (i >= TODO_COMMENT)
                return -1;
 
+       /* Eat up extra spaces/ tabs before object name */
+       padding = strspn(bol, " \t");
+       bol += padding;
+
        if (item->command == TODO_NOOP) {
+               if (bol != eol)
+                       return error(_("%s does not accept arguments: '%s'"),
+                                    command_to_string(item->command), bol);
                item->commit = NULL;
                item->arg = bol;
                item->arg_len = eol - bol;
                return 0;
        }
 
-       /* Eat up extra spaces/ tabs before object name */
-       padding = strspn(bol, " \t");
        if (!padding)
-               return -1;
-       bol += padding;
+               return error(_("missing arguments for %s"),
+                            command_to_string(item->command));
 
        if (item->command == TODO_EXEC) {
                item->commit = NULL;
@@ -2581,7 +2586,10 @@ int transform_todos(unsigned flags)
                        strbuf_addf(&buf, " %s", oid);
                }
                /* add all the rest */
-               strbuf_addf(&buf, " %.*s\n", item->arg_len, item->arg);
+               if (!item->arg_len)
+                       strbuf_addch(&buf, '\n');
+               else
+                       strbuf_addf(&buf, " %.*s\n", item->arg_len, item->arg);
        }
 
        i = write_message(buf.buf, buf.len, todo_file, 0);