posix = require "posix"
command_consume=1
for _,pkg in ipairs(pkglist()) do
  verlist = pkgverlist(pkg)
    installed = nil nver = 0
    for _,ver in ipairs(verlist) do
      if pkgvercur(pkg) == ver then
        -- print("already installed: " .. pkgname(pkg) .. "#" ..verstr(ver))
        installed = 1
      end
      nver = nver + 1
    end
    if not installed and nver > 0 then
      pid = posix.fork()
      assert(pid >= 0)
      if pid == 0 then
         markinstall(pkg)
         if statinstbroken(pkg) then
           print("cannot install: " .. pkgname(pkg))
	 end
	 os.exit(0)
      else
         posix.wait(pid)
      end
    end
end