Splitting up a repository

> Say I have a repo where there are directories repo/foo, repo/bar,
> repo/baz. 'foo', 'bar', and 'baz' are loosely related -- closely enough
> that I put them together initially, but loosely enough that I now wish I
> could check out just 'repo/foo'. Since Git doesn't support partial
> checkouts (a bit annoying!), I now have to split this repository into
> separate ones. I'd of course like to keep history.
> 
> Is there a better way than making several (recursive) copies of the
> repository, deleting all but one directory in each copy, then moving the
> contents of that directory up a level? (And perhaps setting up a Git
> superproject at the original location. I do know about that.)

>> Is there a better way than making several (recursive) copies of the
>> repository, deleting all but one directory in each copy, then moving the
>> contents of that directory up a level? (And perhaps setting up a Git
>> superproject at the original location. I do know about that.)
> 
> Rewrite the history of each directory with git-filter-branch. It even
> has a "--subdirectory-filter" option that will do exactly what you want.

> Say I have a repo where there are directories repo/foo, repo/bar,
> repo/baz. 'foo', 'bar', and 'baz' are loosely related -- closely enough
> that I put them together initially, but loosely enough that I now wish I
> could check out just 'repo/foo'. Since Git doesn't support partial
> checkouts (a bit annoying!),

> On Sat, Dec 4, 2010 at 12:27 PM, Evan Driscoll <driscoll@cs.wisc.edu> wrote:
>> Say I have a repo where there are directories repo/foo, repo/bar,
>> repo/baz. 'foo', 'bar', and 'baz' are loosely related -- closely enough
>> that I put them together initially, but loosely enough that I now wish I
>> could check out just 'repo/foo'. Since Git doesn't support partial
>> checkouts (a bit annoying!),
> 
> Um.. it does support partial checkouts (check out man page of
> git-read-tree, sparse checkout section). But you must do a full clone
> (i.e. your repository will have bar and baz, even if you only checkout
> foo).

> On 12/4/2010 1:09, Nguyen Thai Ngoc Duy wrote:
>> On Sat, Dec 4, 2010 at 12:27 PM, Evan Driscoll <driscoll@cs.wisc.edu> wrote:
>>> Say I have a repo where there are directories repo/foo, repo/bar,
>>> repo/baz. 'foo', 'bar', and 'baz' are loosely related -- closely enough
>>> that I put them together initially, but loosely enough that I now wish I
>>> could check out just 'repo/foo'. Since Git doesn't support partial
>>> checkouts (a bit annoying!),
>>
>> Um.. it does support partial checkouts (check out man page of
>> git-read-tree, sparse checkout section). But you must do a full clone
>> (i.e. your repository will have bar and baz, even if you only checkout
>> foo).
>
> That's sort of spiffy, and I did not know about that. So again, thanks.
>
> That said, I did a bit of reading around, and I'm not sure it does what
> I need.
> http://stackoverflow.com/questions/2336580/sparse-checkout-in-git-1-7-0
> is basically what I want, and the answers seem to indicate it isn't
> possible. (In other words, in my example, when I want a checkout of
> repo/foo, the .git directory needs to be a sibling of foo's contents,
> not a sibling of foo.)