[arch-dev-public] pacman upgrade issue

[Jason Chu]

On Wed, May 09, 2007 at 01:18:32PM -0500, Aaron Griffin wrote:
> On 5/9/07, Jason Chu <jason at archlinux.org> wrote:
> > On Wed, May 09, 2007 at 12:52:31PM -0500, Aaron Griffin wrote:
> > > Jason, can you take this task on? I want to
> > > a) figure out a solution to the pacman upgrade issue
> > > b) deal with the package cleanup
> > > So I don't have huge amounts of time to spare at the moment.
> >
> > I am also lacking in time.  Can you explain the pacman upgrade issue a
> > little better (there was a bug report about it at one point, right?)?
> >
> > I will make sure something gets done, but I doubt I'll be the one to do it.
> 
> Here we go.  I was about to move pacman 3 to current last night and
> realized there is a minor show-stopper in the upgrade path.
> 
> The way pacman 2.X works, when it finds an upgrade for itself, it
> removes _ALL_ additional targets from the list and adds pacman.  At
> this point, deps have already been resolved.
> 
> So, the new pacman depends on libdownload and libarchive.  Clearing
> out the target list also removes these.  So pacman will download
> pacman3, then try to install it, and fail because dependencies are
> missing.
> 
> This is not a critical issue, as one can easilly -S those two, but it
> is not clean.  When this moves to current, there will be many people
> with problems, and not everyone checks the news items / reads the
> forums.
> 
> The use case will go as follows:
> pacman -Syu
> "New pacman is available, upgrade? [Y/n]" Y
> ...download pacman 3...
> Whoops, cannot find dependencies "libdownload" or "libarchive", failing
> "Hmmm, wtf?"
> pacman -S libdownload libarchive
> pacman -Syu
> 
> Again, this is not critical, not fatal, and not a big deal, it is just
> messy.  I want to figure out if there is some good way to do this, but
> I do not think so.

Can we release a new version of pacman 2.X that downloads deps of pacman
when it finds a pacman update?  I don't know how much work this is.

I was also going to suggest we just add the deps to a pkgrel bumped pacman
2.X, but you run into the same problem.

Having the feature to download deps of pacman as well as pacman when doing
the "New pacman is available" steps makes a lot of sense for situations
like this in the future.

Jason
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