anchor.diff:    }
   }
   system("ls *.tar.gz | wc -l")
  +length(deps)
   
   status = function(which="both") {
     if (which=="both") {
  
positive.code:   }
  }
  cat("New downloaded:",new," Already had latest:", old, " TOTAL:", length(deps), "\n")
  table(avail[deps,"Repository"])
  
  # Remove the tar.gz no longer needed :
  system("ls *.tar.gz | wc -l")
  
negative.code: 
  avail = available.packages(repos=biocinstallRepos())   # includes CRAN at the end from getOption("repos")
  deps = tools::package_dependencies("data.table", db=avail, which="most", reverse=TRUE, recursive=FALSE)[[1]]
  exclude = c("TCGAbiolinks")   # takes loo long: https://github.com/BioinformaticsFMRP/TCGAbiolinks/issues/240
  deps = deps[-match(exclude, deps)]
  table(avail[deps,"Repository"])
  length(deps)
  old = 0
  