Extracting a single commit or object

Extracting a single commit or object

[yitzhakbg]

How would I extract a single commit from a repository by it's SHA1 (or any
other treeish)?
For that matter, how is any one single object extracted? Examples please.
Thanks,
YBG
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Re: Extracting a single commit or object

[Shawn O. Pearce]

yitzhakbg <yitzhakbg@gmail.com> wrote:
> 
> How would I extract a single commit from a repository by it's SHA1 (or any
> other treeish)?
> For that matter, how is any one single object extracted? Examples please.

git cat-file $type $sha1

e.g.

git cat-file commit $commitsha1
git cat-file blob $blobsha1

If you need to inspect a tree, ls-tree is probably better:

git ls-tree $commitsha1
git ls-tree $treesha1

-- 
Shawn.

Re: Extracting a single commit or object

[Johannes Schindelin]

Hi,

On Tue, 30 Dec 2008, yitzhakbg wrote:

> How would I extract a single commit from a repository by it's SHA1 (or 
> any other treeish)?

Your question is not precise enough to answer.  Are you looking for

- the commit message?
- the patch?
- all the files referenced by that commit?
- all the files _and revisions_ referenced by that commit?

The answer depends quite a lot on the question...

> For that matter, how is any one single object extracted? Examples please.

The user-friendly way to look at a tree is

	git show HEAD:Documentation/

or some such.  Likewise, you can inspect single blobs like this:

	git show HEAD:README

If you activated bash completion, you can even complete monsters like 
this:

	git show \
v1.5.3:v1.5.3:t/t4013/diff.diff-tree_--cc_--patch-with-stat_--summary_master

Hth,
Dscho

Re: Extracting a single commit or object

[Miklos Vajna]

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On Thu, Jan 01, 2009 at 05:52:49PM +0100, Johannes Schindelin <Johannes.Schindelin@gmx.de> wrote:
> If you activated bash completion, you can even complete monsters like 
> this:
> 
> 	git show \
> v1.5.3:v1.5.3:t/t4013/diff.diff-tree_--cc_--patch-with-stat_--summary_master

Wow, that's really a monster. After removing the first leading v1.5.3:,
it works. (If this is a bash completion bug, I can't reproduce.)

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Re: Extracting a single commit or object

[Alex Riesen]

2008/12/30 Shawn O. Pearce <spearce@spearce.org>:
> yitzhakbg <yitzhakbg@gmail.com> wrote:
>>
>> How would I extract a single commit from a repository by it's SHA1 (or any
>> other treeish)?
>> For that matter, how is any one single object extracted? Examples please.
>
> git cat-file $type $sha1
>

git cat-file -p $sha1

Re: Extracting a single commit or object

[Johannes Schindelin]

Hi,

On Thu, 1 Jan 2009, Miklos Vajna wrote:

> On Thu, Jan 01, 2009 at 05:52:49PM +0100, Johannes Schindelin <Johannes.Schindelin@gmx.de> wrote:
> > If you activated bash completion, you can even complete monsters like 
> > this:
> > 
> > 	git show \
> > v1.5.3:v1.5.3:t/t4013/diff.diff-tree_--cc_--patch-with-stat_--summary_master
> 
> Wow, that's really a monster. After removing the first leading v1.5.3:, 
> it works. (If this is a bash completion bug, I can't reproduce.)

Heh, it's just another proof that copy-n-paste ist just error-prone.

Thanks,
Dscho