[Yum] local dependencies without headers

[Ted Miller]

I am trying to keep my Centos 4 system at home up to date, and add some 
software, but I am having a hard time because I am on dialup.  I have high 
speed access at work, and can download packages there, but am having a hard 
time getting past the dependency loop I find myself in with yum.

What I need is way to tell yum "I want to install foo" and have yum tell me
"here is the list of packages you need to get at work tomorrow in order to 
install foo"

What I have done so far is to create some "local unpopulated mirrors" on my 
local hard drive.  The contain the directory structure for a mirror, but 
are basically empty.  I have written a script that uses rsync to update the 
files in the repodata directory over my dialup, and that works well.  yum 
looks at these local repo drives for all it's information.  I can do things 
like "yum list all foo" and "yum deplist foo" and "yum resolvedep foo", and 
they all work fine, but none of them gives me the information I need.

I have tried deplist, but it lists global dependencies.  Even for packages 
that are already installed on my machine, it gives me a half a page of 
dependency information.  Abundant information, but totally useless for my 
purposes.

If I do an "yum install foo", yum exits because it cannot download the 
headers.  I assume this is related to the "ToDo" and wish-list items about 
not downloading headers.  If I could get yum to proceed through the install 
  until it gets to the y/N question, it would have told me the files it was 
going to need, and I could write a script to extract those names.

I have noticed that when I run "yum resolvedep foo" there is a number in 
front of the file name it returns, but I have found no documentation on 
what that number means.  Does a 0 mean that the file is already installed? 
  If so, I might be able to filter the "dependency:" output of deplist to 
figure out what I already have, and what I need to download.

If someone can point me to a simple way to get that file list of unresolved 
dependencies, I would be very grateful.

Ted Miller