add buildAboutPage task to Gruntfile (#90)

.travis.yml

@@ -5,11 +5,15 @@ language: node_js
 node_js:
   - "0.10"
 
+env:
+  global:
+    - GITHUB_OAUTH_KEY=003a44d58f12089d0c0261338298af3813330949
+
 matrix:
   include:
     - node_js: "0.10"
       env: TEST_SUITE=lint
-      
+
 branches:
   exclude:
     - /^greenkeeper-.+$/

Gruntfile.js

@@ -1,6 +1,14 @@
-/* global module, require, process */
+/* global -moment */
+/* jshint node: true */
 /* jscs:disable */
-var path = require('path'),
+var _              = require('lodash'),
+    fs             = require('fs-extra'),
+    path           = require('path'),
+    https          = require('https'),
+    getTopContribs = require('top-gh-contribs'),
+    moment         = require('moment'),
+    chalk          = require('chalk'),
+    Promise        = require('bluebird'),
 
     escapeChar = process.platform.match(/^win/) ? '^' : '\\',
     cwd        = process.cwd().replace(/( |\(|\))/g, escapeChar + '$1');
@@ -78,10 +86,122 @@ module.exports = function(grunt) {
     });
 
     grunt.registerTask('init', 'Install the client dependencies',
-        ['shell:npm-install', 'shell:bower-install']
+        ['shell:npm-install', 'shell:bower-install', 'buildAboutPage']
     );
 
     grunt.registerTask('lint', 'Run the code style checks and linter',
         ['jshint', 'jscs', 'shell:csscomblint']
     );
+
+    // ### Build About Page *(Utility Task)*
+    // Builds the github contributors partial template used on the about page,
+    // and downloads the avatar for each of the users.
+    // Run by any task that compiles ember assets or manually via `grunt buildAboutPage`.
+    // Only builds if the template does not exist.
+    // To force a build regardless, supply the --force option.
+    //      `grunt buildAboutPage --force`
+    grunt.registerTask('buildAboutPage', 'Compile assets for the About Ghost page', function () {
+        var done = this.async(),
+            templatePath = 'app/templates/-contributors.hbs',
+            imagePath = 'public/assets/img/contributors',
+            timeSpan = moment().subtract(90, 'days').format('YYYY-MM-DD'),
+            oauthKey = process.env.GITHUB_OAUTH_KEY,
+            contribNumber = 18;
+
+        if (fs.existsSync(templatePath) && !grunt.option('force')) {
+            grunt.log.writeln('Contributors template already exists.');
+            grunt.log.writeln(chalk.bold('Skipped'));
+            return done();
+        }
+
+        grunt.verbose.writeln('Downloading release and contributor information from Github');
+
+        function mergeContribs(first, second) {
+            _.each(second, function (contributor) {
+                var contributorInFirst = _.find(first, ['name', contributor.name]);
+
+                if (contributorInFirst) {
+                    contributorInFirst.commitCount += contributor.commitCount;
+                } else {
+                    first.push(contributor);
+                }
+            });
+
+            return _(first)
+                .filter(function (contributor) {
+                    // remove greenkeeper from contributor list
+                    return contributor.name !== 'greenkeeperio-bot';
+                })
+                .sortBy('commitCount')
+                .reverse()
+                .take(contribNumber)
+                .value();
+        }
+
+        return Promise.join(
+            Promise.promisify(fs.mkdirs)(imagePath),
+            getTopContribs({
+                user: 'tryghost',
+                repo: 'ghost',
+                oauthKey: oauthKey,
+                sinceDate: timeSpan,
+                count: contribNumber,
+                retry: true
+            }),
+            getTopContribs({
+                user: 'tryghost',
+                repo: 'ghost-admin',
+                oauthKey: oauthKey,
+                sinceDate: timeSpan,
+                count: contribNumber,
+                retry: true
+            })
+        ).then(function (results) {
+            var contributors = mergeContribs(results[1], results[2]),
+                contributorTemplate = '<article>\n    <a href="<%= githubUrl %>" title="<%= name %>">\n' +
+                    '        <img src="{{gh-path "admin" "/img/contributors"}}/<%= name %>" alt="<%= name %>" />\n' +
+                    '    </a>\n</article>',
+
+                downloadImagePromise = function (url, name) {
+                    return new Promise(function (resolve, reject) {
+                        var file = fs.createWriteStream(path.join(__dirname, imagePath, name));
+
+                        https.get(url, function (response) {
+                            response.pipe(file);
+                            file.on('finish', function () {
+                                file.close();
+                                resolve();
+                            });
+                        }).on('error', reject);
+                    });
+                };
+
+            grunt.verbose.writeln('Creating contributors template');
+            grunt.file.write(
+                templatePath,
+                _.map(contributors, function (contributor) {
+                    var compiled = _.template(contributorTemplate);
+
+                    return compiled(contributor);
+                }).join('\n')
+            );
+
+            grunt.verbose.writeln('Downloading images for top contributors');
+            return Promise.all(_.map(contributors, function (contributor) {
+                return downloadImagePromise(contributor.avatarUrl + '&s=60', contributor.name);
+            }));
+        }).then(done).catch(function (error) {
+            grunt.log.error(error);
+
+            if (error.http_status) {
+                grunt.log.writeln('GitHub API request returned status: ' + error.http_status);
+            }
+
+            if (error.ratelimit_limit) {
+                grunt.log.writeln('Rate limit data: limit: %d, remaining: %d, reset: %s', error.ratelimit_limit, error.ratelimit_remaining, moment.unix(error.ratelimit_reset).fromNow());
+            }
+
+            done(false);
+        });
+    });
 };

package.json

@@ -24,8 +24,10 @@
     "node": ">= 0.10.0"
   },
   "devDependencies": {
+    "bluebird": "3.4.1",
     "bower": "1.7.9",
     "broccoli-asset-rev": "2.4.3",
+    "chalk": "1.1.3",
     "csscomb": "3.1.8",
     "ember-ajax": "2.4.1",
     "ember-cli": "2.6.2",
@@ -72,7 +74,10 @@
     "liquid-fire": "0.23.1",
     "liquid-tether": "1.1.1",
     "loader.js": "4.0.10",
+    "lodash": "4.13.1",
     "matchdep": "1.0.1",
+    "moment": "2.13.0",
+    "top-gh-contribs": "2.0.4",
     "walk-sync": "^0.2.6"
   },
   "ember-addon": {