portupgrade O(n^m)? and pkgupgrade

[Dominic Marks]

On Thu, 15 Feb 2007 17:52:29 +0100
Michel Talon <talon at lpthe.jussieu.fr> wrote:

> As a tentative solution to the problem in the subject, i have corrected
> still more bugs in my program pkguprade. The last version is at
> http://www.lpthe.jussieu.fr/~talon/pkgupgrade
> 
> I had observed on my own machine two problems, one being that the
> topological sort was scrambled, this i have discovered was due to a bad
> use of the python sort() function (although i don't understand clearly
> why the syntax was bad), the other had to do with ports being moved in
> the MOVED files and whose moves were accounted incorrectly. This is 
> a hairy problem with the FreeBSD ports sytem.
> 
> As an example of running pkgupgrade, here is what i get after having
> upgraded the port tree from 6.2-RELEASE to current:
> niobe% ./pkgupgrade
> There are now 711 packages installed.
> Collecting installed packages.
> Building the updated index.
> Building and filling the dependency DAG.
> Printing the upgrade list in UpgradeLog
> Total time spent in analysis:  01 minutes 29 seconds.
> Second phase, downloads and backups.
> Total time spent in downloads:  00 minutes 13 seconds.
> Total time spent in backups:  00 minutes 15 seconds.
> Writing upgrade shell script.
> Will remove 3 old packages.
> Will install 17 new binary packages.
> Will compile 8 ports.
> All tasks completed.
> ******************************************************************
> Total time:  01 minutes 53 seconds.
> At first sight, the shell script which has been produced, UpgradeShell
> seems reasonable. Of course such a program can only gain very good
> reliability by testing, but testing is always dangerous ..., except
> perhaps on testing machines, but i don't have any.

You could use a jail for this, although a separate system is
always nice.
 
> -- 
> 
> Michel TALON
> 
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