Re: [RFC PATCH 0/3] grep: don't add subrepos to in-memory alternates
- From
Junio C Hamano <gitster@pobox.com>
- Date
- Sep 28, 2019, 03:24 UTC
- Message-ID
- <xmqqtv8xksrs.fsf@gitster-ct.c.googlers.com>
- In-Reply-To
- <CAHd-oW5iEQarYVxEXoTG-ua2zdoybTrSjCBKtO0YT292fm0NQQ@mail.gmail.com>
Matheus Tavares Bernardino <matheus.bernardino@usp.br> writes:
Show 10 quoted lines
> Right, this would be the best way of doing it. However, I think this > is not how it's currently implemented. I if correctly understood the > code in this call chain: > > grep_source_load_driver() > userdiff_find_by_path() > > git_check_attr() > collect_some_attrs() > prepare_attr_stack() > > bootstrap_attr_stack() > > it seems that the whole stack is being rebuild for every path (even > for paths descending in the same superproject or submodule).
bootstrap is guarded with "if (*stack) return;" and prepare knows to rewind to the common level and push down the new ones, no?
At least that is how I remember writing the first version of it. Have we broken the design over time, I wonder?