From: John Keeping <john@keeping.me.uk>
To: Junio C Hamano <gitster@pobox.com>
Cc: Duy Nguyen <pclouds@gmail.com>, Johannes Sixt <j6t@kdbg.org>,
Git Mailing List <git@vger.kernel.org>,
Jens Lehmann <Jens.Lehmann@web.de>
Subject: Re: [PATCH 1/2] reset: handle submodule with trailing slash
Date: Wed, 11 Sep 2013 18:27:05 +0100 [thread overview]
Message-ID: <20130911172705.GV2582@serenity.lan> (raw)
In-Reply-To: <xmqqwqmnthfh.fsf@gitster.dls.corp.google.com>
On Wed, Sep 11, 2013 at 10:08:18AM -0700, Junio C Hamano wrote:
> Duy Nguyen <pclouds@gmail.com> writes:
>
> > reset --soft does not go through these code paths (i.e. it does not
> > need index at all). If we fail to load index index in "reset --soft" I
> > think it's ok to die(). Corrupt index is fatal anyway.
>
> Do I smell a breakage here? Isn't "reset --soft HEAD" (or some
> known good commit) a way to recover from a corrupt index?
>
> If that is the case, I do not think it is OK at all. What do we
> suggest as an alternative? "rm .git/index && read-tree"?
Duy's suggestion below is necessary to avoid this then I think - we'll
die if the user has a corrupt index and gives a path with a trailing
slash, but without that path we won't try to load the index.
> > But "reset
> > --soft" now has to pay the cost to load index, which could be slow
> > when the index is big. Assuming nobody does "reset --soft" that often
> > I think this is OK.
> >
> > Alternatively we could load index lazily in _CHEAP code only when we
> > see trailing slashes, then replace these read_cache() with
> > read_cache_unless_its_already_loaded_earlier() or something.
next prev parent reply other threads:[~2013-09-11 17:27 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-10 19:13 [PATCH 0/2] reset: handle submodule with trailing slash John Keeping
2013-09-10 19:13 ` [PATCH 1/2] " John Keeping
2013-09-10 19:37 ` Jens Lehmann
2013-09-10 19:46 ` John Keeping
2013-09-11 6:05 ` Johannes Sixt
2013-09-11 8:20 ` John Keeping
2013-09-11 10:54 ` Duy Nguyen
2013-09-11 11:08 ` John Keeping
2013-09-11 11:20 ` Duy Nguyen
2013-09-11 17:08 ` Junio C Hamano
2013-09-11 17:27 ` John Keeping [this message]
2013-09-11 18:14 ` Junio C Hamano
2013-09-11 18:22 ` John Keeping
2013-09-11 18:45 ` Junio C Hamano
2013-09-10 19:13 ` [PATCH 2/2] rm: re-use parse_pathspec's trailing-slash removal John Keeping
2013-09-11 7:48 ` Duy Nguyen
2013-09-11 8:24 ` John Keeping
2013-09-12 19:24 ` [PATCH v2 0/4] submodule trailing slash improvements John Keeping
2013-09-12 19:24 ` [PATCH v2 1/4] pathspec: use is_dir_sep() to check for trailing slashes John Keeping
2013-09-12 20:17 ` Johannes Sixt
2013-09-12 19:24 ` [PATCH v2 2/4] pathspec: strip multiple trailing slashes from submodules John Keeping
2013-09-12 19:48 ` Junio C Hamano
2013-09-12 20:21 ` John Keeping
2013-09-13 1:28 ` Duy Nguyen
2013-09-13 8:48 ` John Keeping
2013-09-12 19:25 ` [PATCH v2 3/4] rm: re-use parse_pathspec's trailing-slash removal John Keeping
2013-09-12 19:25 ` [PATCH v2 4/4] reset: handle submodule with trailing slash John Keeping
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