Change how slides are served to be easier to edit

Serve up markdown based on filename in the data slide folder. Use the
index to find what file to use.

Removed ability to run code on slide on the server. Wasn't that useful
for how much of a pain it is.

bin/deck

@@ -3,10 +3,8 @@
 
 var fs = require('fs');
 var path = require('path');
-var exec = require('child_process').exec;
 
 var _ = require('lodash');
-var async = require('async');
 var express = require('express');
 var handlebars = require('handlebars');
 
@@ -52,28 +50,16 @@ function index(req, res) {
 
 app.get('/', index);
 
-function serveIfExists(path) {
-  return function _serveIfExists(cb) {
-    fs.exists(path, function (exists) {
-      if (!exists) {
-        cb(null, null);
-        return;
-      }
-      fs.readFile(path, {encoding: 'utf8'}, cb);
-    });
-  };
-}
-
 app.get('/slides', function showHandler(req, res) {
   fs.readdir(pathToFile('data', 'slide'), function (err, files) {
     files.sort();
     var jsonFiles = _.filter(files, function (file) {
-      return /^\d+\.json$/.test(file);
+      return /^\d+\.md$/.test(file);
     });
 
     res.send(_.map(jsonFiles, function (file) {
       return {
-        id: parseInt(file.replace(/\.json$/, ''), 10)
+        id: parseInt(file.replace(/\.md$/, ''), 10)
       };
     }));
   });
@@ -85,107 +71,34 @@ app.get(/slide\/(\d+)/, function showHandler(req, res, next) {
     return;
   }
 
-  var slideId = req.params[0];
-  var slidePath = pathToFile('data', 'slide', slideId + '.json');
-
-  fs.exists(slidePath, function (exists) {
-    if (!exists) {
-      next();
-      return;
-    }
-
-    fs.readFile(slidePath, {encoding: 'utf8'}, function (err, content) {
-      if (err) {
-        renderError(res, err);
-        return;
-      }
-
-      try {
-        var slide = JSON.parse(content);
-      } catch (err) {
-        renderError(res, err);
-        return;
-      }
+  var slideIndex = req.params[0];
 
-      async.parallel({
-        copy: serveIfExists(pathToFile('data', 'copy', slide.copy + '.md')),
-        code: serveIfExists(pathToFile('data', 'code', slide.code + '.js'))
-      }, function (err, slideContent) {
+  fs.readdir(pathToFile('data', 'slide'), function (err, files) {
     if (err) {
-          renderError(res, err);
-          return;
+      return renderError(res, err);
     }
-        slideContent.id = parseInt(slideId, 10);
-        slideContent.title = slide.title || '';
-        res.send(slideContent);
-      });
-    });
 
+    files.sort();
+    var markdownFiles = _.filter(files, function (file) {
+      return /\.md$/.test(file);
     });
-});
-
-app.get(/results\/([^\/]+)\/(\d\d)$/, function resultsHandler(req, res, next) {
-  var app = req.params[0];
-  var slideId = req.params[1];
-  var validApps = [
-    'node', 'phantomjs-1.9.8', 'phantomjs-2.0.0'
-  ];
-
-  if (!_.contains(validApps, app)) {
-    next();
-    return;
-  }
 
-  var slidePath = pathToFile('data', 'slide', slideId + '.json');
-  fs.exists(slidePath, function (exists) {
-    if (!exists) {
+    if (slideIndex > markdownFiles.length) {
       return next();
     }
 
-    var noSlideError = new Error('No code for slide');
-    async.waterfall([
-
-      function (cb) {
-        fs.readFile(slidePath, {encoding: 'utf8'}, cb);
-      },
-
-      function (content, cb) {
-        try {
-          var slide = JSON.parse(content);
-        } catch (err) {
-          cb(err, null);
-          return;
-        }
-        cb(null, slide);
-      },
-
-      function (slide, cb) {
-        var codePath = pathToFile('data', 'code', slide.code + '.js');
-        fs.exists(codePath, function (exists) {
-          if (exists) {
-            cb(null, codePath);
-          } else {
-            cb(noSlideError);
-          }
-        });
-      },
-
-      function (path, cb) {
-        exec(app + ' ' + path, cb);
-      }
-
-    ], function (err, stdout, stderr) {
-      if (err === noSlideError) {
-        next();
-        return;
-      }
+    var markdownFile = markdownFiles[slideIndex - 1];
+    var markdownPath = pathToFile('data', 'slide', markdownFile);
+    fs.readFile(markdownPath, {encoding: 'utf8'}, function (err, content) {
       if (err) {
-        res.send({stdout: '', stderr: err.toString()});
-        return;
+        return renderError(res, err);
       }
-      res.send({stdout: stdout, stderr: stderr});
-    });
 
+      res.send({
+        id: parseInt(slideIndex, 10),
+        copy: content
+      });
+    });
   });
 });
 

data/code/html5.js

@@ -1,19 +0,0 @@
-var page = require('webpage').create();
-page.viewportSize = {width: 1280, height: 720};
-
-page.open('https://html5test.com/', function() {
-  function doneLoading() {
-    var el = document.getElementById('loading');
-    return window.getComputedStyle(el).display === 'none';
-  }
-
-  function checkPage() {
-    if (page.evaluate(doneLoading)) {
-      page.render('static/html5.' + phantom.version.major + '.png');
-      console.log('created static/html5.' + phantom.version.major + '.png');
-      phantom.exit();
-    }
-    setTimeout(checkPage, 100);
-  }
-  checkPage();
-});

data/copy/crash-explain.md

@@ -1,5 +0,0 @@
-# Use After Free
-
-- Create webpage object in JavaScript
-- Close webpage in JavaScript
-- Do something with webpage in JavaScript

data/copy/js-runtime.md

@@ -1 +0,0 @@
-# JavaScript Runtime

data/copy/only-title.md

@@ -1 +0,0 @@
-# PhantomJS

data/copy/testing.md

@@ -1 +0,0 @@
-# Testing

data/copy/umd.md

@@ -1 +0,0 @@
-# Backbone's UMD

data/copy/use-after-free.md

@@ -1 +0,0 @@
-# This will error, not crash

data/slide/01.json

@@ -1,3 +0,0 @@
-{
-  "copy": "title"
-}

data/slide/02.json

@@ -1,3 +0,0 @@
-{
-  "copy": "about"
-}

data/slide/03.json

@@ -1,3 +0,0 @@
-{
-  "copy": "screen-shot"
-}

data/slide/04.json

@@ -1,4 +0,0 @@
-{
-  "copy": "only-title",
-  "code": "phantom-webpage-screenshot"
-}

data/slide/04.md

@@ -1,3 +1,6 @@
+# PhantomJS
+
+```javascript
 var page = require('webpage').create();
 
 page.viewportSize = {width: 1280, height: 720};
@@ -7,3 +10,4 @@ page.open('http://phantomjs.org', function() {
    console.log('created phantomjs.png. ☮ out!');
    phantom.exit();
 });
+```

data/slide/05.json

@@ -1,3 +0,0 @@
-{
-  "copy": "not-node"
-}

data/slide/06.json

@@ -1,3 +0,0 @@
-{
-  "copy": "qt"
-}

data/slide/07.json

@@ -1,4 +0,0 @@
-{
-  "copy": "use-after-free",
-  "code": "use-after-free"
-}

data/slide/07.md

@@ -1,3 +1,6 @@
+# This will error, not crash
+
+```javascript
 var phantom = this.phantom || {exit: function () {}};
 var foo = {bar: {baz: 123}};
 delete foo.bar;
@@ -7,3 +10,4 @@ try {
   console.log(err);
   phantom.exit();
 }
+```

data/slide/08.json

@@ -1,3 +0,0 @@
-{
-  "copy": "null-pointer"
-}

data/slide/09.json

@@ -1,4 +0,0 @@
-{
-  "copy": "crash-explain",
-  "code": "crash"
-}

data/slide/09.md

@@ -1,3 +1,10 @@
+# Use After Free
+
+- Create webpage object in JavaScript
+- Close webpage in JavaScript
+- Do something with webpage in JavaScript
+
+```javascript
 var phantom = this.phantom || {exit: function () {}};
 var page = require('webpage').create();
 // code, code, code…
@@ -6,3 +13,4 @@ page.open('about:blank', function () {
   console.log('☮ out!');
   phantom.exit();
 });
+```

data/slide/10.json

@@ -1,4 +0,0 @@
-{
-  "copy": "js-runtime",
-  "code": "prototypes"
-}

data/slide/10.md

@@ -1,3 +1,6 @@
+# JavaScript Runtime
+
+```javascript
 var phantom = this.phantom || {exit: function () {}};
 console.log('bind:', typeof Function.prototype.bind);
 console.log('9 === parseInt("09"):', 9 === parseInt('09'));
@@ -8,3 +11,4 @@ console.log('filter:', typeof Array.prototype.filter);
 console.log('Object.create:', typeof Object.create);
 
 phantom.exit();
+```

data/slide/11.json

@@ -1,3 +0,0 @@
-{
-  "copy": "code-share"
-}

data/slide/12.json

@@ -1,4 +0,0 @@
-{
-  "copy": "umd",
-  "code": "backbone-umd"
-}

data/slide/12.md

@@ -1,3 +1,6 @@
+# Backbone's UMD
+
+```javascript
 (function(root, factory) {
   if (typeof define === 'function' && define.amd) {
     define(['underscore', 'jquery', 'exports'], function(_, $, exports) {
@@ -12,3 +15,4 @@
 }(this, function(root, Backbone, _, $) {
   // Backbone…
 }));
+```

data/slide/13.json

@@ -1,4 +0,0 @@
-{
-  "copy": "only-title",
-  "code": "backbone"
-}

data/slide/13.md

@@ -1,3 +1,6 @@
+# PhantomJS
+
+```javascript
 var phantom = phantom || {exit: function () {}};
 var _ = require('../../vendor/underscore/underscore');
 phantom.injectJs('../../vendor/backbone/backbone.js');
@@ -5,3 +8,4 @@ console.log(_.toString());
 console.log(Backbone.View.toString());
 phantom.exit();
 //module.exports = Backbone;
+```

data/slide/14.json

@@ -1,4 +0,0 @@
-{
-  "copy": "testing",
-  "code": "some-test"
-}

data/slide/14.md

@@ -1,5 +1,9 @@
+# Testing
+
+```javascript
 describe('some test', function () {
   it('→ some test case', function () {
     expect(1 + 1).toBe(2);
   });
 });
+```

data/slide/15.json

@@ -1,4 +0,0 @@
-{
-  "copy": "testing",
-  "code": "test"
-}

data/slide/15.md

@@ -1,3 +1,6 @@
+# Testing
+
+```javascript
 phantom.injectJs('../../vendor/jasmine/lib/jasmine-core/jasmine.js');
 var consoleFns = require('../../vendor/jasmine/lib/console/console.js');
 var jasmine = jasmineRequire.core(jasmineRequire);
@@ -13,3 +16,4 @@ jasmine.getEnv().addReporter(new jasmine.ConsoleReporter({
 
 phantom.injectJs('./some-test.js');
 jasmine.getEnv().execute();
+```

data/slide/16.json

@@ -1,3 +0,0 @@
-{
-  "copy": "other-awesome"
-}

data/slide/17.json

@@ -1,3 +0,0 @@
-{
-  "copy": "fin"
-}