1.1 --- a/TODO	Thu Oct 25 13:21:26 2007 -0400
     1.2 +++ b/TODO	Thu Oct 25 23:31:09 2007 -0400
     1.3 @@ -53,3 +53,18 @@
     1.4  	do { ... } while (((e++)->name & RAZOR_ENTRY_LAST) == 0);
     1.5  
     1.6    idiom for iteration of directories.
     1.7 +
     1.8 +- version the sections in the file, put the element size in the header
     1.9 +  so we can add stuff to elements in a backwards compatible way.
    1.10 +
    1.11 +- overlay package sets?  mount a read-only /usr over nfs or from the
    1.12 +  virt-host and have a local package set overlaid over the read-only
    1.13 +  one.  shouldn't need new features in the core package set data
    1.14 +  structure, but should be just conventions on top.  we have the base
    1.15 +  package set from the r/o system, the overlay set from the local
    1.16 +  system and we can have an effective package set which is the merge
    1.17 +  of everything from the overlay into the base set.  the effective set
    1.18 +  is easy to compute and we could do it on the fly or cache it.  or
    1.19 +  maybe the effective set is the on-disk representation and the
    1.20 +  overlay can be computed when needed, we just keep a link back to the
    1.21 +  base.