1 files changed, 234 insertions, 0 deletions

diff --git a/gulpfile.js b/gulpfile.js
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+++ b/gulpfile.js
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+(function initializeGulp () {
+  'use strict';
+
+  var fs = require('fs');
+  var cheerio = require('cheerio');
+  var rimraf = require('rimraf');
+  var mainBowerFiles = require('main-bower-files');
+
+  var gulp = require('gulp');
+  var git = require('gulp-git');
+  var filter = require('gulp-filter');
+  var less = require('gulp-less');
+  var webserver = require('gulp-webserver');
+  var streamqueue = require('streamqueue');
+  var ignore = require('gulp-ignore');
+  var prompt = require('gulp-prompt');
+  var handlebars = require('gulp-compile-handlebars');
+  var rename = require('gulp-rename');
+
+  var dir = {
+    'dist': './dist',
+    'src': './src'
+  };
+
+  // List of file paths.
+  var paths = {
+    'html': dir.src + '/**/*.html',
+    'hbs': dir.src + '/index.hbs',
+    'index': dir.src + '/index.hbs'
+  };
+
+  // Contents of all our bower dependencies' main:[] fields.
+  var bowerFiles = mainBowerFiles();
+
+  // The current package.json file.
+  var packageJson = require('./package.json');
+
+  /**
+   * The handlebars configuration object.
+   */
+  var handlebarsConfig = {
+    helpers: {
+      'datetime': function (object) {
+        return object.toLocaleDateString();
+      }
+    }
+  };
+
+  /**
+   * This method parses through discovered presentations, reads their
+   * html metadata, and returns an array of that metadata.
+   */
+  function buildPresentationManifest () {
+    var presentations = [];
+    var files = fs.readdirSync(dir.src);
+
+    for (var i = 0; i < files.length; i++) {
+      var file = dir.src + '/' + files[i] + '/index.html';
+      try {
+        var stat = fs.statSync(file);
+        var $ = cheerio.load(fs.readFileSync(file));
+        presentations.push({
+          'title': $("head title").text(),
+          'description': $("head meta[name='description']").attr('content'),
+          'author': $('head meta[name="author"]').attr('content'),
+          'mtime': stat.mtime,
+          'path': files[i] + '/index.html'
+        });
+      } catch (e) {
+        // Do nothing
+      }
+    }
+    presentations.sort(function (a, b) {
+      return a.mtime >= b.mtime ? 1 : -1;
+    });
+    return presentations;
+  }
+
+  /**
+   * Clean the output directory.
+   *
+   * @param {Function} cb callback.
+   * @return {*} A gulp stream that performs this action.
+   */
+  gulp.task('clean', function (cb) {
+    rimraf(dir.dist, cb);
+  });
+
+  /**
+   * Build the static file structure from our bower dependencies. Reveal.js
+   * is given a special snowflake status, because it doesn't observe the
+   * standard packaging format that bower files like.
+   */
+  gulp.task('package:libs', function (cb) {
+    var resolveCSS = gulp.src(bowerFiles)
+      .pipe(filter('*.css'))
+      .pipe(gulp.dest(dir.dist + '/css'));
+
+    var resolveLESS = gulp.src(bowerFiles)
+      .pipe(filter('*.less'))
+      .pipe(less())
+      .pipe(gulp.dest(dir.dist + '/css'));
+
+    var resolveFonts = gulp.src(bowerFiles)
+      .pipe(filter(['*.otf', '*.eot', '*.svg', '*.ttf', '*.woff', '*.woff2']))
+      .pipe(gulp.dest(dir.dist + '/fonts'));
+
+    var resolveLibs = gulp.src(bowerFiles)
+      .pipe(filter('*.js'))
+      .pipe(gulp.dest(dir.dist + '/js'));
+
+    // Reveal.js is a special snowflake.
+    var resolveReveal = gulp.src('./bower_components/reveal.js/*/**/*.*',
+      {'base': './bower_components/reveal.js/'})
+      .pipe(ignore(['**/test/**', '*.js']))
+      .pipe(filter([
+        '**/*.js',
+        '**/*.css',
+        '**/*.eot',
+        '**/*.ttf',
+        '**/*.woff'
+      ]))
+      .pipe(gulp.dest(dir.dist));
+
+    return streamqueue({'objectMode': true}, resolveCSS, resolveLESS,
+      resolveReveal, resolveLibs, resolveFonts);
+  });
+
+  /**
+   * Package the handlebars files.
+   */
+  gulp.task('package:hbs', function () {
+
+    var templateData = {
+      'presentations': buildPresentationManifest(),
+      'author': packageJson.author
+    };
+
+    // Automatically build the site list.
+    return gulp.src(paths.hbs, {'base': dir.src})
+      .pipe(handlebars(templateData, handlebarsConfig))
+      .pipe(rename(function (path) {
+        path.extname = ".html";
+      }))
+      .pipe(gulp.dest(dir.dist));
+  });
+
+  /**
+   * Copy the HTML files into the dist folder.
+   */
+  gulp.task('package:html', function () {
+    return gulp.src(paths.html, {'base': dir.src})
+      .pipe(gulp.dest(dir.dist));
+  });
+
+  /**
+   * This task builds a new presentation from the base presentation template.
+   */
+  gulp.task('new', function () {
+    var templateData = {
+      author: packageJson.author
+    };
+    var destinationFolder = '';
+    return gulp.src(dir.src + '/template/index.hbs')
+      .pipe(prompt.prompt([
+          {
+            type: 'input',
+            name: 'folderName',
+            message: 'Presentation Folder Name (/^[a-z][a-z_]+$/):',
+            validate: function (value) {
+              var result = value.match(/^([a-z][a-z_]+)$/);
+              return result !== null;
+            }
+          },
+          {
+            type: 'input',
+            name: 'title',
+            message: 'Presentation Title:'
+          },
+          {
+            type: 'input',
+            name: 'description',
+            message: 'Presentation Description:'
+          },
+          {
+            type: 'input',
+            name: 'event',
+            message: 'First presented at:'
+          },
+          {
+            type: 'input',
+            name: 'event',
+            message: 'First presented on (date):'
+          }],
+        function (res) {
+          destinationFolder = res.folderName;
+          templateData.presentation = {
+            'title': res.title,
+            'description': res.description,
+            'event': res.event
+          }
+        }))
+      .pipe(handlebars(templateData, handlebarsConfig))
+      .pipe(rename(function (path) {
+        path.dirname += '/' + destinationFolder;
+        path.basename = "index";
+        path.extname = ".html";
+      }))
+      .pipe(gulp.dest(dir.src))
+      .pipe(git.add());
+  });
+
+  /**
+   * Package the entire site into the dist folder.
+   */
+  gulp.task('package', ['package:html', 'package:hbs', 'package:libs']);
+
+  /**
+   * Start a local server and serve the application code. This is
+   * equivalent to opening index.html in a browser.
+   *
+   * @return {*} A gulp stream that performs this action.
+   */
+  gulp.task('serve', function () {
+    gulp.watch(paths.html, ['package:html']);
+    gulp.watch(paths.hbs, ['package:hbs']);
+
+    return gulp.src(dir.dist)
+      .pipe(webserver({
+        'livereload': true,
+        'open': true
+      }));
+  });
+})();