Re: [PATCH v5 15/15] fast-export: don't handle uninteresting refs
- From
Johannes Schindelin <johannes.schindelin@gmx.de>
- Date
- Nov 26, 2012, 19:26 UTC
- Message-ID
- <alpine.DEB.1.00.1211262024520.7256@s15462909.onlinehome-server.info>
- In-Reply-To
- <7vd2z0tfhz.fsf@alter.siamese.dyndns.org>
Hi Junio,
On Mon, 26 Nov 2012, Junio C Hamano wrote:
Show 19 quoted lines
> Johannes Schindelin <Johannes.Schindelin@gmx.de> writes: > > > If you changed your stance on the patch Sverre and I sent to fix this, > > we could get a non-partial fix for this. > > This is long time ago so I may be misremembering the details, but I > thought the original patch was (ab)using object flags to mark "this was > explicitly asked for, even though some other range operation may have > marked it uninteresting". Because it predated the introduction of the > rev_cmdline_info mechanism to record what was mentioned on the command > line separately from what objects are uninteresting (i.e. object flags), > it may have been one convenient way to record this information, but it > still looked unnecessarily ugly hack to me, in that it allocated scarce > object flag bits to represent a narrow special case (iirc, only a > freestanding "A" on the command line but not "A" spelled in "B..A", or > something), making it more expensive to record other kinds of command > line information in a way consistent with the approach chosen (we do not > want to waste object flag bits in order to record "this was right hand > side tip of the symmetric difference range" and such).
Good to know. I will find some time to look at rev_cmdline_info and patch my patch.
Show 8 quoted lines
> If you are calling "do not waste object flags to represent one > special case among endless number of possibilities, as it will make > it impossible to extend it" my stance, that hasn't changed. > > We added rev_cmdline_info since then so that we can tell what refs > were given from the command line in what way, and I thought that we > applied a patch from Sverre that uses it instead of the object > flags. Am I misremembering things?
It does sound so familiar that I am intended to claim that you remember things correctly.
Ciao, Johannes