patch applied (cabal-install): Use a dependency graph rather than a list when installing packages

[Duncan Coutts]

Wed Feb 20 03:06:37 PST 2008  Duncan Coutts <duncan at haskell.org>
  * Use a dependency graph rather than a list when installing packages
  This allows us to figure out what to do when installing a single package
  fails. Instead of just carrying on as if nothing had happened and then
  failing several other packages which depended on the one that failed
  initially we can cut those dependent packages out as soon as the first one
  fails and if there is anything left that did not depend on the failed
  package then we can try and carry on.

    A ./Hackage/DepGraph.hs
    M ./Hackage/Dependency.hs -14 +23
    M ./Hackage/Fetch.hs -1 +3
    M ./Hackage/Info.hs -2 +4
    M ./Hackage/Install.hs -13 +21
    M ./Hackage/Utils.hs +4

View patch online:

  http://darcs.haskell.org/cabal-install/_darcs/patches/20080220110637-adfee-6062773f7ddf5e03a5c920b364bca25d59455c70.gz