About *git clone --depth=n* puzzle

> Hi Guys,
> 
> I think I have got some trouble when I use `git clone --depth=n` command. Take a real repo for example:
> 
> 
> `git clone https://github.com/douglarek/vimrc.git --depth=1`
> 
> 
> then I use `git log`:
>   
> ```  
>     commit d04ca09ecc723739123fae11ad56784eb0c9b36a
>     Author: Lingchao Xin <douglarek@outlook.com>
>     Date:   Fri Jun 7 09:39:22 2013 +0800
> 
>         Update vnudle to master branch, add wm shortcut, pylint optimization
> 
>     commit c66d827dc212f6ae8aab6b5c44631564bcbe2acd
>     Author: icocoa <lingchax@outlook.com>
>     Date:   Tue Mar 12 01:36:34 2013 -0700
> 
>         Merge pull request #1 from douglarek/master
> 
>         Add markdown, flake8, pylint plugin
> 
> ```
>     but when I clone it with `file://`:
> 
>     git clone https://github.com/douglarek/vimrc.git
>     git clone file://vimrc.git --depth=1 vimrc1
> 
>     I got this log:
> ```
>     commit d04ca09ecc723739123fae11ad56784eb0c9b36a
> Author: Lingchao Xin <douglarek@outlook.com>
> Date:   Fri Jun 7 09:39:22 2013 +0800
> 
>     Update vnudle to master branch, add wm shortcut, pylint optimization
> ```
> 
> so the two results are not same, is it a bug? or it should be so?
> 
> My os is openSUSE 12.3 and git version 1.8.3.4; and myabe it occured in git 1.8.1.4 +.
> 
> 
> Thanks and Best regards
> 
> Lingchao Xin 		 	   		  --

> Date: Wed, 14 Aug 2013 10:51:53 +0200
> From: stefanbeller@googlemail.com
> To: douglarek@outlook.com
> CC: git@vger.kernel.org; junchunx.guan@gmail.com
> Subject: Re: About *git clone --depth=n* puzzle
>
> On 08/14/2013 10:20 AM, XinLingchao wrote:
>> Hi Guys,
>>
>> I think I have got some trouble when I use `git clone --depth=n` command. Take a real repo for example:
>>
>>
>> `git clone https://github.com/douglarek/vimrc.git --depth=1`
>>
>>
>> then I use `git log`:
>>
>> ```
>> commit d04ca09ecc723739123fae11ad56784eb0c9b36a
>> Author: Lingchao Xin <douglarek@outlook.com>
>> Date: Fri Jun 7 09:39:22 2013 +0800
>>
>> Update vnudle to master branch, add wm shortcut, pylint optimization
>>
>> commit c66d827dc212f6ae8aab6b5c44631564bcbe2acd
>> Author: icocoa <lingchax@outlook.com>
>> Date: Tue Mar 12 01:36:34 2013 -0700
>>
>> Merge pull request #1 from douglarek/master
>>
>> Add markdown, flake8, pylint plugin
>>
>> ```
>> but when I clone it with `file://`:
>>
>> git clone https://github.com/douglarek/vimrc.git
>> git clone file://vimrc.git --depth=1 vimrc1
>>
>> I got this log:
>> ```
>> commit d04ca09ecc723739123fae11ad56784eb0c9b36a
>> Author: Lingchao Xin <douglarek@outlook.com>
>> Date: Fri Jun 7 09:39:22 2013 +0800
>>
>> Update vnudle to master branch, add wm shortcut, pylint optimization
>> ```
>>
>> so the two results are not same, is it a bug? or it should be so?
>>
>> My os is openSUSE 12.3 and git version 1.8.3.4; and myabe it occured in git 1.8.1.4 +.
>>
>>
>> Thanks and Best regards
>>
>> Lingchao Xin --
>
> There was a similar discussion going on in July this year,
> maybe this is an interesting read with respect to this topic
> http://www.spinics.net/lists/git/msg196138.html
>
> Stefan
>
>

> > There was a similar discussion going on in July this year,
> > maybe this is an interesting read with respect to this topic
> > http://www.spinics.net/lists/git/msg196138.html
> >
> Stefan, I do NOT think so, the key point is not about the depth limit,
> it is about whether remote clone depth equals local clone depth.

> Date: Wed, 14 Aug 2013 07:59:56 -0400
> From: peff@peff.net
> To: douglarek@outlook.com
> CC: stefanbeller@googlemail.com; git@vger.kernel.org; junchunx.guan@gmail.com
> Subject: Re: About *git clone --depth=n* puzzle
>
> On Wed, Aug 14, 2013 at 05:19:36PM +0800, XinLingchao wrote:
>
>>> There was a similar discussion going on in July this year,
>>> maybe this is an interesting read with respect to this topic
>>> http://www.spinics.net/lists/git/msg196138.html
>>>
>> Stefan, I do NOT think so, the key point is not about the depth limit,
>> it is about whether remote clone depth equals local clone depth.
>
> I do not think it is about local vs remote, but rather about which
> version of git the remote side is running. Prior to 682c7d2
> (upload-pack: fix off-by-one depth calculation in shallow clone,
> 2013-01-11), a shallow clone always returned one extra commit. That fix
> went into v1.8.2.
>
> So if you have a post-v1.8.2 git client, a local clone will use the same
> git version as the "remote" side of the connection. But if you are
> contacting a remote server, the results you get will depend on what
> version of git is running on the remote server.
>
> And as the example you showed uses github.com as the remote, and as I
> happen to know that GitHub's servers do not currently have 682c7d2, you
> would see the old behavior.
>
> -Peff 		 	   		  

> Hi Guys,
>
> I think I have got some trouble when I use `git clone --depth=n` command. Take a real repo for example:
>
>
> `git clone https://github.com/douglarek/vimrc.git --depth=1`
>
>
> then I use `git log`:
>
> ```
>     commit d04ca09ecc723739123fae11ad56784eb0c9b36a
>     Author: Lingchao Xin <douglarek@outlook.com>
>     Date:   Fri Jun 7 09:39:22 2013 +0800
>
>         Update vnudle to master branch, add wm shortcut, pylint optimization
>
>     commit c66d827dc212f6ae8aab6b5c44631564bcbe2acd
>     Author: icocoa <lingchax@outlook.com>
>     Date:   Tue Mar 12 01:36:34 2013 -0700
>
>         Merge pull request #1 from douglarek/master
>
>         Add markdown, flake8, pylint plugin
>
> ```
>     but when I clone it with `file://`:
>
>     git clone https://github.com/douglarek/vimrc.git
>     git clone file://vimrc.git --depth=1 vimrc1
>
>     I got this log:
> ```
>     commit d04ca09ecc723739123fae11ad56784eb0c9b36a
> Author: Lingchao Xin <douglarek@outlook.com>
> Date:   Fri Jun 7 09:39:22 2013 +0800
>
>     Update vnudle to master branch, add wm shortcut, pylint optimization
> ```
>
> so the two results are not same, is it a bug? or it should be so?
>
> My os is openSUSE 12.3 and git version 1.8.3.4; and myabe it occured in git 1.8.1.4 +.