clojure-koans/src/path_to_enlightenment.clj
2011-06-10 22:22:04 -05:00

41 lines
1.4 KiB
Clojure

(ns path-to-enlightenment
(:use [runner.freshness :only [setup-freshener]])
(:require [clojure.set]
[clojure.string]))
(def __ :fill-in-the-blank)
(def ___ (fn [& args] __))
(defmacro meditations [& forms]
(let [pairs (partition 2 forms)
tests (map (fn [[doc# code#]]
`(assert ~code# ~doc#))
pairs)]
`(and ~@tests)))
(defn require-version [[required-major required-minor]]
(let [{:keys [major minor]} *clojure-version*]
(if (or (< major required-major)
(and (== major required-major) (< minor required-minor)))
(throw (Exception. (str "Clojure version " required-major "."
required-minor " or higher required."))))))
(defn parse-required-version []
(let [rdr (clojure.lang.LineNumberingPushbackReader.
(java.io.FileReader. (java.io.File. "project.clj")))
project-form (read rdr)
version-string (->> project-form
(drop 3)
(apply hash-map)
:dependencies
(map (fn [xs] (vec (take 2 xs))))
(into {})
('org.clojure/clojure))]
(map read-string
(take 3 (clojure.string/split version-string #"[\.\-]")))))
(defn run []
(require-version (parse-required-version))
(setup-freshener))