Find package dependencies

pkgdeps.jl

function pkgdeps(pkg::String, metadir = "/home/zac/.julia/v0.6/METADATA")
    deps = []
    for pdir in readdir(metadir)
        if isdir(joinpath(metadir,pdir)) && "versions" in readdir(joinpath(metadir,pdir))
            for ver in readdir(joinpath(metadir, pdir, "versions"))
                if isfile(joinpath(metadir, pdir, "versions",ver,"requires"))
                    reqs = readlines(joinpath(metadir, pdir, "versions",ver,"requires"))
                    for r in reqs
                        if first(split(r, " ")) == pkg
                            push!(deps, (pdir, ver))
                        end
                    end
                end
            end
        end
    end
    deps
end