Junio C Hamano wrote:
> [ NOTE! The reason I put "RFC" in the subject rather than "PATCH" is that
> I'm not 100% sure this isn't just a "shiny object" of mine rather than a
> really useful thing to do. What do people think? Have you ever wanted to
> access individual files in some random revision? Do you think this is
> useful? I think it's cool and _may_ be useful, but I'm not going to
> really push this patch. Consider it a throw-away patch unless somebody
> else finds it intriguing enough.. ]
>
> This is a fairly straightforward patch to allow "get_sha1()" to
> also have shorthands for blob objects in the current index.
I sometimes want to have something like that:
uzeisberger@io:~/gsrc/linux-2.6$ git cat-file blob v2.6.16:Makefile
That is not a shortcut for objects in the current index, but for blobs
in written trees.
It's easy to hack a script that does that. Something like that[1]:
#! /bin/sh
eval `echo ${1} | sed 's/\\(.*\\):\\(.*\\)/commit=\"\\1^{}\"; file=\"\\2\"/'`
tree=`git cat-file commit ${commit} | sed -n 's/tree //p'`
blob=`git ls-tree -r ${tree} | awk "\\\$4 == \\"${file}\\" { print \\\$3 }"`
git cat-file blob ${blob}
But if the rev-parser could handle that, that would be much finer. Or
is there already a way to do this that I don't know?
Best regards
Uwe
[1] It's not tested and probably fails if there are some "bad"
characters in ${1} and could be implemented in a much cleverer way.
--
Uwe Zeisberger
http://www.google.com/search?q=0+degree+Celsius+in+kelvin
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