def self.create_dependency_graph_from_cookbooks(all_cookbooks)
dep_graph = DepSelector::DependencyGraph.new
all_cookbooks.each do |cb_name, cb_versions|
cb_versions.each do |cb_version|
cb_version_deps = cb_version.metadata.dependencies
pv = dep_graph.package(cb_name).add_version(Chef::Version.new(cb_version.version))
cb_version_deps.each_pair do |dep_name, constraint_str|
dep_cb_name = dep_name.split("::").first
constraint = Chef::VersionConstraint.new(constraint_str)
pv.dependencies << DepSelector::Dependency.new(dep_graph.package(dep_cb_name), constraint)
end
end
end
dep_graph
end