On Thu, Aug 12, 2010 at 03:17, Jonathan Nieder <jrnieder@xxxxxxxxx> wrote:
> Ævar Arnfjörð Bjarmason wrote:
>
>> It'd also be very neat if we had tools to print out any object in its
>> raw form, --pretty=raw is partly there, but it's more pretty than
>> raw.
>
> How about git cat-file (and other “interrogation commands” listed in
> git.1)?
Those are part of the way there, but you often have to tease info out
of them, e.g. if you want a commit -> commit roundtrip:
$ echo 7980e417 | git cat-file --batch | perl -0777 -pe 's/.*
commit ([0-9]*).(.*)\n/commit $1\0$2/s'|sha1sum
7980e41746bc5de91eea775f9142ce44b1100361 -
The raw output from that is:
$ echo 7980e417 | git cat-file --batch
7980e41746bc5de91eea775f9142ce44b1100361 commit 525
tree 782007df51255ab3793e528a4b5c4a69342166f2
parent 0d0ba03a18a9c6cbc3d55c1b6834b9c3824f823f
parent b5e233ecc411c8685463333d180a135c6866c50e
author Junio C Hamano <gitster@xxxxxxxxx> 1281551520 -0700
committer Junio C Hamano <gitster@xxxxxxxxx> 1281551520 -0700
Merge branch 'maint'
* maint:
post-receive-email: remove spurious commas in email subject
fast-import: export correctly marks larger than 2^20-1
t/lib-git-svn.sh: use $PERL_PATH for perl, not perl from $PATH
diff: strip extra "/" when stripping prefix
It'd be nice to answer "how are object stored" with something like:
$ echo 7980e417 | git some-thing --pretty=raw -
commit <SP> 525 <NULL>
tree ....
And be able to do something similar to see what's stored in an
arbitrary pack file, I've often wished I had something like that when
using git-fsck.
These docs are also an excellent resource, afaict we only hint at
something like this in git, e.g. in the git-cat-file(1) manpage:
http://www-cs-students.stanford.edu/~blynn/gitmagic/ch08.html
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