sequencer (rebase -i): the todo can be empty when continuing

When the last command of an interactive rebase fails, the user needs to resolve the problem and then continue the interactive rebase. Naturally, the todo script is empty by then. So let's not complain about that! To that end, let's move that test out of the function that parses the todo script, and into the more high-level function read_populate_todo(). This is also necessary by now because the lower-level parse_insn_buffer() has no idea whether we are performing an interactive rebase or not. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Johannes Schindelin committed Jan 2, 2017 at 16:27 UTC 52865279ee1187a0f630779d2015587ae702b1f4
1 file changed +5 -2
sequencer.c
+5 -2
@@ -1215,8 +1215,7 @@ static int parse_insn_buffer(char *buf, struct todo_list *todo_list)
1215 else if (!is_noop(item->command))
1216 fixup_okay = 1;
1217 }
1218 - if (!todo_list->nr)
1219 - return error(_("no commits parsed."));
1218 +
1219 return res;
1220 }
1221
@@ -1240,6 +1239,10 @@ static int read_populate_todo(struct todo_list *todo_list,
1239 if (res)
1240 return error(_("unusable instruction sheet: '%s'"), todo_file);
1241
1242 + if (!todo_list->nr &&
1243 + (!is_rebase_i(opts) || !file_exists(rebase_path_done())))
1244 + return error(_("no commits parsed."));
1245 +
1246 if (!is_rebase_i(opts)) {
1247 enum todo_command valid =
1248 opts->action == REPLAY_PICK ? TODO_PICK : TODO_REVERT;