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Use checksums instead of last modified times.

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Also add pandect dependency.
This commit is contained in:
J Irving 2015-01-02 00:05:59 -05:00
parent 6f7cb79a65
commit 4eb0036ef5
2 changed files with 35 additions and 25 deletions
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33
project.clj
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@ -1,16 +1,17 @@
(defproject cryogen-core "0.1.10"
:description "Cryogen's compiler"
:url "https://github.com/lacarmen/cryogen-core"
:license {:name "Eclipse Public License"
:url "http://www.eclipse.org/legal/epl-v10.html"}
:dependencies [[org.clojure/clojure "1.6.0"]
[clj-rss "0.1.9"]
[me.raynes/fs "1.4.6"]
[crouton "0.1.2"]
[cheshire "5.4.0"]
[clj-text-decoration "0.0.3"]
[io.aviso/pretty "0.1.13"]
[hiccup "1.0.5"]
[selmer "0.7.8"]
[markdown-clj "0.9.61"
:exclusions [com.keminglabs/cljx]]])
(defproject cryogen-core "0.1.11-SNAPSHOT"
:description "Cryogen's compiler"
:url "https://github.com/lacarmen/cryogen-core"
:license {:name "Eclipse Public License"
:url "http://www.eclipse.org/legal/epl-v10.html"}
:dependencies [[org.clojure/clojure "1.6.0"]
[clj-rss "0.1.9"]
[me.raynes/fs "1.4.6"]
[crouton "0.1.2"]
[cheshire "5.4.0"]
[clj-text-decoration "0.0.3"]
[io.aviso/pretty "0.1.13"]
[hiccup "1.0.5"]
[selmer "0.7.8"]
[markdown-clj "0.9.61"
:exclusions [com.keminglabs/cljx]]
[pandect "0.4.1"]])

27
src/cryogen_core/watcher.clj
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@ -1,24 +1,33 @@
(ns cryogen-core.watcher
(:require [clojure.java.io :refer [file]]
[cryogen-core.io :refer [ignore]]))
[cryogen-core.io :refer [ignore]]
[pandect.core :refer [md5]]
[clojure.set :as set]))
(defn get-assets [root ignored-files]
(->> root
(defn get-assets [path ignored-files]
(->> path
file
file-seq
(filter #(not (.isDirectory %)))
(filter (ignore ignored-files))))
(defn sum-times [path ignored-files]
(->> (get-assets path ignored-files) (map #(.lastModified %)) (reduce +)))
(defn checksums [path ignored-files]
(let [files (get-assets path ignored-files)]
(zipmap (map md5 files) files)))
(defn find-changes [old-sums new-sums]
(let [old-sum-set (-> old-sums keys set)
new-sum-set (-> new-sums keys set)]
(when-some [changes (set/difference new-sum-set old-sum-set)]
(vals (select-keys new-sums changes)))))
(defn watch-assets [root ignored-files action]
(loop [times (sum-times root ignored-files)]
(loop [sums (checksums root ignored-files)]
(Thread/sleep 300)
(let [new-times (sum-times root ignored-files)]
(when-not (= times new-times)
(let [new-sums (checksums root ignored-files)]
(when (find-changes sums new-sums)
(action))
(recur new-times))))
(recur new-sums))))
(defn start-watcher! [root ignored-files action]
(doto (Thread. #(watch-assets root ignored-files action))