Improve the order in which `ns-tracker` returns the namespaces

[frankitox]

Hi! I'm using this library because pedestal uses it to reload the files.

The problem is that ns-tracker doesn't return the namespaces in the order in which each file depends on the other (by depending I mean the :require at the top ns declaration). For example, if I have 3 files:

(ns first)

(def f 1)

(ns second
  (:require [first]))

(def s (+ 2 first/f))

(ns third
  (:require [second]))

(def t second/s)

Now, using ns-tracker:

(def t (ns-tracker ["src"]))

;; after editing and saving `first.clj` I do:

(t)
;; => (first third second)

Let's say that I changed first/f to 30, the problem is that if I reload them in that order, then third/d will have the older value:

(require 'first :reload)
(require 'third :reload)
(require 'second :reload)
first/f ;; => 30
second/s ;; => 32
third/t ;; => 3

Now, I wanted to ask, is this expected or it is a bug?

[stefan-toubia]

Also ran into this issue, fixed it in this fork https://github.com/liftoffio/ns-tracker/commit/d016c781268d8249e9d4ecf52d3b2eacad81c853

[weavejester]

This issue slipped through the cracks of my inbox the first time around. This does appear to be a bug, and I'd accept a PR to fix it.