[petsc-dev] All petsc-dev users will need to do a reclone of petsc-dev on Tuesday or later

[Sean Farley]

Barry Smith writes:

>    To users of petsc-dev,
>
>       I promised more details on the planned change and why we are making them. 
>
>       The plan is to move petsc-dev over to the git repository system (remaining on bitbucket.org so no new accounts are needed) with a simple and slow transition from Mecurial and allowing people to change their workflows slowly and easily and NOT to drop a totally new system onto everyone at the same time. Thus on Tuesday we will be moving all the data over to git and providing access from bitbucket.org with BOTH hg and git, you will not need to switch over to git on Tuesday and in fact we recommend not switching to git immediately but continuing to use hg (on the new repository) until we have the git process documented and can help people with it. On Tuesday we will be sending out the URL of the new hg repository you should clone from at that time. 
>
>    If you are in the middle of a coding project that you don't want to push immediately send us petsc-maint at mcs.anl.gov and we'll get things organized so that you can continue with that in the new repository.
>
>    Schedule:
>       Tuesday -- delete your current petsc-dev repositories and reclone with hg using the new URL, use this new repository just like the current one
>       After Tuesday -- read our documentation on using Git (to be sent out later)  and then eventually switch to accessing petsc-dev via git.
>       Eventually -- the Mecurial (hg) access to petsc-dev will become read only.
>
>    Reasons for the change:
>
> 1)  We want to provide a more stable version of petsc-dev. To often petsc-dev won't compile cleanly when pulled. In our new model this will happen much less often since code will be well tested before being pushed into the stable version.
>
> 2) The petsc-dev repository has gotten overly large due to many large binary files being accidentally added to the repository, thus it is time to get rid of those files and that requires a reclone.
>
> 3) We would like to make the change sets and histories in petsc-dev be more logically related to particular projects and not just a random bunch of unrelated changes (as Barry has often done). Our new work flow with git will help with this. 
>
>  4) Though Mecurial is a user friendly system, git appears to have more community support and thus is likely to have more capabilities and utilities developed for it in the future. We will strive to make the use of git with PETSc as simple as possible. 
>
>    I have been hesitant to make this change for fear that working with petsc-dev would become more cumbersome, more annoying, more bookkeeping involved, more like a job, and hence less fun. And we know people tend to do something less if it is less fun. Since we don't want people to do things with petsc-dev less we will be trying hard to make the new model as close to the old model as possible and not cumbersome or annoying.  As always we appreciate any feedback on what we are doing wrong and how we could improve it.

Satish, please remove me from petsc-maint. Also, remove me from the
developers webpage. I have already purged petsc-dev from my system and
won't be pushing anything else from now on.