rebase--interactive: move transform_todo_file()

As transform_todo_file() is only needed inside of
rebase--interactive.c for `rebase -p', it is moved there from
sequencer.c.

The parameter r (repository) is dropped along the way.

Signed-off-by: Alban Gruin <alban.gruin@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

builtin/rebase--interactive.c

@@ -64,6 +64,30 @@ static int rearrange_squash_in_todo_file(void)
 	return 0;
 }
 
+static int transform_todo_file(unsigned flags)
+{
+	const char *todo_file = rebase_path_todo();
+	struct todo_list todo_list = TODO_LIST_INIT;
+	int res;
+
+	if (strbuf_read_file(&todo_list.buf, todo_file, 0) < 0)
+		return error_errno(_("could not read '%s'."), todo_file);
+
+	if (todo_list_parse_insn_buffer(the_repository, todo_list.buf.buf,
+					&todo_list)) {
+		todo_list_release(&todo_list);
+		return error(_("unusable todo list: '%s'"), todo_file);
+	}
+
+	res = todo_list_write_to_file(the_repository, &todo_list, todo_file,
+				      NULL, NULL, -1, flags);
+	todo_list_release(&todo_list);
+
+	if (res)
+		return error_errno(_("could not write '%s'."), todo_file);
+	return 0;
+}
+
 static int edit_todo_file(unsigned flags)
 {
 	const char *todo_file = rebase_path_todo();
@@ -330,7 +354,7 @@ int cmd_rebase__interactive(int argc, const char **argv, const char *prefix)
 	}
 	case SHORTEN_OIDS:
 	case EXPAND_OIDS:
-		ret = transform_todo_file(the_repository, flags);
+		ret = transform_todo_file(flags);
 		break;
 	case CHECK_TODO_LIST:
 		ret = check_todo_list_from_file(the_repository);

sequencer.c

@@ -4632,29 +4632,6 @@ int todo_list_write_to_file(struct repository *r, struct todo_list *todo_list,
 	return res;
 }
 
-int transform_todo_file(struct repository *r, unsigned flags)
-{
-	const char *todo_file = rebase_path_todo();
-	struct todo_list todo_list = TODO_LIST_INIT;
-	int res;
-
-	if (strbuf_read_file(&todo_list.buf, todo_file, 0) < 0)
-		return error_errno(_("could not read '%s'."), todo_file);
-
-	if (todo_list_parse_insn_buffer(r, todo_list.buf.buf, &todo_list)) {
-		todo_list_release(&todo_list);
-		return error(_("unusable todo list: '%s'"), todo_file);
-	}
-
-	res = todo_list_write_to_file(r, &todo_list, todo_file,
-				      NULL, NULL, -1, flags);
-	todo_list_release(&todo_list);
-
-	if (res)
-		return error_errno(_("could not write '%s'."), todo_file);
-	return 0;
-}
-
 static const char edit_todo_list_advice[] =
 N_("You can fix this with 'git rebase --edit-todo' "
 "and then run 'git rebase --continue'.\n"

sequencer.h

@@ -143,7 +143,6 @@ int sequencer_remove_state(struct replay_opts *opts);
 int sequencer_make_script(struct repository *r, struct strbuf *out, int argc,
 			  const char **argv, unsigned flags);
 
-int transform_todo_file(struct repository *r, unsigned flags);
 void todo_list_add_exec_commands(struct todo_list *todo_list,
 				 struct string_list *commands);
 int check_todo_list_from_file(struct repository *r);