Re: [RFD/BUG?] git show with tree/commit

From: Junio C Hamano <gitster@pobox.com>
Date: Apr 12, 2016, 16:50 UTC
Message-ID: <xmqqzisyrcsu.fsf@gitster.mtv.corp.google.com>
In-Reply-To: <20160412163420.GA23462@sigill.intra.peff.net>

Jeff King <peff@peff.net> writes:

Show 22 quoted lines

> On Tue, Apr 12, 2016 at 05:33:33PM +0200, Michael J Gruber wrote:
>
>> $ git show cab2cdadfda8e8e8631026443b11d3ed6e7ba517:
>> tree cab2cdadfda8e8e8631026443b11d3ed6e7ba517:
>> 
>> .gitattributes
>> .gitignore
>> .mailmap
>> ...
>
> As Junio pointed out, the colon here is not syntactic, but from the
> original object name you gave it. But here...
>
>> $ git show 04050d37b1676ba8da277be1902513049b45413a:
>> tree 04050d37b1676ba8da277be1902513049b45413a
>> 
>> .gitattributes
>> .gitignore
>> .mailmap
>> ...
>
> ...it is missing. Did you mean to omit it from the command-line?

I suspect that is cut-and-paste something.  I see:

    $ git show 04050d37b1676ba8da277be1902513049b45413a: | head -n1
    tree 04050d37b1676ba8da277be1902513049b45413a:
    $ git show 04050d37b1676ba8da277be1902513049b45413a | head -n1
    tree 04050d37b1676ba8da277be1902513049b45413a

which is expected.

It indeed becomes confusing when you give "<treeish>:" from the command line, as it looks as if there is conceptually a list of tree contents that is shown like so:

    tree tree1:
    contents of tree1

    tree tree2:
    contents of tree2
    ...

and we are showing only the first one. If the original input were given as "<treeish>^{tree}", there is no confusion.