buildRepDepGraph: Functionality to manage repository dependency graphs
In vgpprasad91/graph: graph: A package to handle graph data structures

Description Usage Arguments Value Author(s) Examples

These functions can be used to represent and manipulate dependency graphs for a specified package repository.

1 2	buildRepDepGraph(repository, depLevel = c("Depends", "Suggests")) pkgInstOrder(pkg, repGraph)

`repository`	A URL to a `CRAN` style repository
`depLevel`	One of `Depends` or `Suggests`, detailing the level of dependencies to search. The `Suggests` value includes everything in `Depends`.
`pkg`	The package to get the installation order for
`repGraph`	A `graph` object representing a repository, as from `buildRepDepGraph`

For buildRepDepGraph, a graph representing the dependency structure of the specified repository, where an edge from node A to node B represents a dependency on B by A.

For pkgInstOrder, a vector is returned, listing the appropriate order one would take to install all of the necessary packages to install the specified package. That is, it makes sure that at every step, any package being installed does not depend on one that has not yet been installed. This order can then be used with functions such as install.packages.

Jeff Gentry

   if("FIXME"=="Jeff, we can't assume that we're always online - wh") {
       repos <- getOption("repositories")["BIOC"] ## Get BIOC repos
       buildRepDepGraph(repos)
   }