Re: Why can't I push from a shallow clone?
- From
- Gulshan Singh <gsingh2011@gmail.com>
- Date
- Jul 26, 2013, 19:12 UTC
- Message-ID
- <CANEZYrdR3xLRSQAo6rroN3TLv48HEKp4_t95WEf6rm8-+r+2tw@mail.gmail.com>
- In-Reply-To
- <20130726065528.GA4940@paksenarrion.iveqy.com>
Hey Fredrick,
It's good to know that work is being done on this. I still want to understand it though, so I guess I'll ask specific questions about Junio's response. He states,
"If you cloned shallowly some time ago, worked without communicating with the other side while the other side progressed, AND if the other side's progress included a rewind & rebuild of the history, you would see a similar topology. The leftmost 'S' in the above picture might have been the tip of the branch when you shallowly cloned with depth 1, and since then the remote end may have discarded topmost three commits and have rebuilt its history that leads to the rightmost 'R'. In such a case pushing to the remote's HEAD will fail."
So as an example, if you shallow clone a branch, then someone squashes the head commit and makes a new commit, you won't be able to push to HEAD because the parent has changed. But if someone does that, I don't think you would be able to push even if it was a full clone. That's why it's usually not a good idea to rebase shared branches. So did I misunderstand the scenario?
On Thu, Jul 25, 2013 at 11:55 PM, Fredrik Gustafsson <iveqy@iveqy.com> wrote:
Show 20 quoted lines
> On Thu, Jul 25, 2013 at 07:33:16PM -0700, Gulshan Singh wrote: >> I've been trying to figure out why I can't push from a shallow clone >> (using --depth) to a repository. I've made simple examples where it >> works, but I've read that in doesn't work in every case. However, I >> can't come up with a case where it doesn't work. Googling gives this >> answer: http://stackoverflow.com/questions/6900103/why-cant-i-push-from-a-shallow-clone, >> but I don't completely understand the explanation, so I was hoping >> someone could explain it. > > I can't explain it better than what Junio did in the link you just > provide. However there's ongoing work to allow shallow clones to be able > to push. You can read about it here: > http://thread.gmane.org/gmane.comp.version-control.git/230612/focus=230878 > > -- > Med vänliga hälsningar > Fredrik Gustafsson > > tel: 0733-608274 > e-post: iveqy@iveqy.com
-- Gulshan Singh University of Michigan, Class of 2015 College of Engineering, Computer Science Major gulshan@umich.edu | 248.961.6317 Alternate E-mail: gsingh2011@gmail.com