On Wed, Mar 31, 2010 at 06:33:09AM -0500, David Hagood wrote:
> I am trying to drag where I work into a more modern software development
> process, but I am getting resistance from one division that has a large
> amount of history for some projects in a Clearcase repository. If I
> could show them that we could import all that history into git, it would
> go a long way to removing that resistance.
>
> I've seen programs that purport to import Subversion (which is also
> good, as they also are using Subversion for other projects....) but do
> any such programs exist for Clearcase?
>
> I know that, in theory, it would be possible to
> for all checkins to Clearcase
> check out of Clearcase
> check into git
> done
>
> but that would take an incredibly long time in practice, wouldn't it?
>
I don't think you can build anything which will import from ClearCase
*without* loosing *some* history. At least I have build a script which imported
something from CC into git in my former job and allow me to sync bidirectional
with CC.
The problems where no bidirectional mapping exists are the following:
- CC is file based, where as GIT is tree (the whole repository) based
- This leads to problems where you merge a file on differen CC branches,
because in GIT a merge is only on the whole tree, so at least this
information is lost. (see cleartool lstree for a file with merges)
Peter
--
To unsubscribe from this list: send the line "unsubscribe git" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html