From 5082f3cad3f8f730ab4cc21f6b6cdf05c37436dd Mon Sep 17 00:00:00 2001
From: Sean Fridman <fridman@mail.sfsu.edu>
Date: Fri, 5 Jun 2015 15:01:01 -0400
Subject: Implement template reloading

---
 app/node_modules/oktemplate/index.js     | 59 +++++++++++++++++++++++---------
 app/node_modules/oktemplate/package.json |  1 +
 2 files changed, 43 insertions(+), 17 deletions(-)

(limited to 'app/node_modules')

diff --git a/app/node_modules/oktemplate/index.js b/app/node_modules/oktemplate/index.js
index f2c2e07..ae9d1b1 100644
--- a/app/node_modules/oktemplate/index.js
+++ b/app/node_modules/oktemplate/index.js
@@ -4,6 +4,7 @@ var path = require('path');
 var glob = require('glob');
 var stringify = require('json-to-html');
 var Liquid = require('liquid-node');
+var chokidar = require('chokidar');
 
 /**
  * Define any custom liquid filters here.
@@ -40,19 +41,56 @@ var filters = {
  */
 function OKTemplateRepo(options) {
   options = options || {};
+  var self = this;
   var root = this._root = options.root || 'templates';
-  var ext = 'liquid';
+  // TODO Support more templates?
+  var ext = this._ext = 'liquid';
   var cache = this._cache = {};
   var engine = this._engine = new Liquid.Engine;
+  var debug = options.debug;
+  var globString = this._globString = root + '/*.' + ext
   engine.registerFilters(filters);
   engine.fileSystem = new Liquid.LocalFileSystem(root, ext);
+
   this._populateCache(engine, cache, ext);
+
+  if (debug) {
+    var watcher = chokidar.watch(globString);
+    watcher.on('change', reloadTemplate);
+    watcher.on('add', reloadTemplate);
+  }
+
+  function reloadTemplate(path) {
+    self._loadTemplate(path);
+  }
 }
 
 OKTemplateRepo.prototype.getTemplate = function getTemplate(name) {
   return this._cache[name];
 }
 
+OKTemplateRepo.prototype._loadTemplate = function loadTemplate(filePath) {
+  var engine = this._engine
+  var name = path.basename(filePath, '.' + this._ext);
+  var templateString = fs.readFileSync(filePath, {encoding: 'UTF8'});
+  if (!this._cache[name])
+    this._cache[name] = {};
+
+  var template = this._cache[name]
+  template.name = name;
+  template.templateString = templateString;
+  template.render = render
+
+  function render(data) {
+    return Q.promise(function(resolve, reject) {
+      // TODO Not sure if this caches parsed templates behind the scenes?
+      engine.parseAndRender(templateString, data)
+        .then(resolve)
+        .catch(reject);
+    });
+  }
+}
+
 /**
  * Go through our template dir and read the template files
  * into memory as strings.
@@ -60,22 +98,9 @@ OKTemplateRepo.prototype.getTemplate = function getTemplate(name) {
  */
 OKTemplateRepo.prototype._populateCache = function _populateCache(engine, cache, ext) {
   var self = this;
-  var files = glob.sync(this._root + '/*.' + ext);
-  files.forEach(function eachFile(file) {
-    var name = path.basename(file, '.' + ext);
-    var templateString = fs.readFileSync(file, {encoding: 'UTF8'});
-    cache[name] = {
-      name: name,
-      templateString: templateString,
-      render: function(data) {
-        return Q.promise(function(resolve, reject) {
-        // TODO Not sure if this caches parsed templates behind the scenes?
-          engine.parseAndRender(templateString, data)
-            .then(resolve)
-            .catch(reject);
-        });
-      }
-    }
+  var files = glob.sync(this._globString);
+  files.forEach(function eachFile(path) {
+    self._loadTemplate(path);
   });
 }
 
diff --git a/app/node_modules/oktemplate/package.json b/app/node_modules/oktemplate/package.json
index 70e94e3..61d90e8 100644
--- a/app/node_modules/oktemplate/package.json
+++ b/app/node_modules/oktemplate/package.json
@@ -10,6 +10,7 @@
   "license": "None",
   "dependencies": {
     "bluebird": "^2.9.21",
+    "chokidar": "^1.0.3",
     "glob": "^5.0.3",
     "json-to-html": "^0.1.2",
     "liquid-node": "^2.5.0",
-- 
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