From: Philip Oakley <philipoakley@iee.org>
Date: Sun, 10 Jan 2016 23:08:17 GMT
Subject: Re: [PATCH V3 0/2] specify commit by negative pattern
Message-ID: <72AF834F7D7B46D298EFE697EBF19E0E@PhilipOakley>
In-Reply-To: <1686181.AoEpo53h6D@thunderbird>

From: "Stephen & Linda Smith" <ischis2@cox.net>
> On Sunday, January 10, 2016 01:25:42 PM Philip Oakley wrote:
>> From: "Stephen P. Smith" <ischis2@cox.net>
>> > Add support for negative pattern matching in  <at> ^{/<pattern>} style
>>
>> Has this become mangled by replacing the '@' with ' <at> ' ?
> It looks like the cover letter got mangled.  I will fix after I get any 
> comments
> on the patches themselves.
>

I think I was also confused between the extra ways of spelling @ (listed 
first in revisions.txt), and the extra was of spelling <rev>, i.e. the 
<rev>^{/<text>}, and then in patch 2/2 it actually being the :/<text> 
syntax.

>>
>> When I look at the update to revisions.txt it doesn't look like its 
>> touching
>> the '@' description.
>> Is this '@^' a new (for the documenation) combination. Or has the example
>> confused me?
>>
>> > revision specifiers. So now you can find the first commit whose message
>> > doesn't match a pattern, complementing the existing positive matching.
>> > e.g.:
>> >
>> >    $ git rebase -i  <at> ^{/!-^WIP}
>> >
>> > My use-case is in having a "work, work, work, rebase, push"-style
>> > workflow, which generates a lot of "WIP foo" commits. While rebasing is
>> > usually handled via "git rebase -i origin/master", occasionally I will
>> > already have several "good, but not yet ready to push" commits hanging
>> > around while I finish work on related commits. In these situations, the
>> > ability to quickly "git diff  <at> ^{/!-^WIP}" to get an overview of 
>> > all
>> > changes "since the last one I was happy with", can be useful.
>> >
>> > This is the second version of the patch series. The previous attempt
>> > used the notation  <at> ^{/!WIP}, rather than  <at> ^{/!-WIP}, so the
>> > "modifier"
>> > was the '!' character. Now, '!' is taken as an indicator that the
>> > pattern is to be interpreted differently, and '-' is taken as an
>> > indicator of how it is to be interpreted differently. This follows
>> > recent discussion with "Junio C Hamano" <gitster <at> pobox.com> and
>> > much-less
>> > recent discussion archived at:
>> >
>> > http://thread.gmane.org/gmane.comp.version-control.git/40460/focus=40477
>> >
>> > In summary, '!' is to be used as an "escape hatch", for further
>> > extension of the "name commit by pattern" functionality. Theorised 
>> > future
>> > extensions indicated things like "what was to be searched",
>> > e.g.:  <at> ^{/!(a=author)}.  With only two interpretations of the '!'
>> > leader, for now (including the '!!' literal notation), adding such a
>> > verbose form, such as ' <at> ^{/!(negative)foo}', seemed inappropriate 
>> > at
>> > this
>> > time. In the event that such verbose forms are ever implemented, this 
>> > new
>> > form may act as a shorthand, for a basic case.
>> >
>> > Will Palmer (2):
>> >  test for '!' handling in rev-parse's named commits
>> >  object name: introduce '^{/!-<negative pattern>}' notation
>> >
>> > Documentation/revisions.txt | 11 +++++-----
>> > sha1_name.c                 | 20 ++++++++++++-----
>> > t/t1511-rev-parse-caret.sh  | 53
>> > ++++++++++++++++++++++++++++++++++++++++++++-
>> > 3 files changed, 73 insertions(+), 11 deletions(-)
>> >
>> --
>> Philip
>>
>
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