It would be nice if checkoutmanager would continue after discovering a conflict while updating, like here with subversion:
/Users/mauritsvanrees/src/collective.developermanual Something went wrong when executing: svn up while in directory: /Users/mauritsvanrees/src/collective.developermanual Returncode: 1 Output: ...
Conflict discovered in 'buildout.cfg'. Select: (p) postpone, (df) diff-full, (e) edit, (mc) mine-conflict, (tc) theirs-conflict, (s) show all options: svn: Can't read stdin: End of file found
The best thing to do here, if possible, would I think be to postpone resolving the conflict and just continue updating the next package.
But at the end of the checkoutmanager run it would have to be clearly printed that there were conflicts or other problems.