fetch sponsors at build time, show ALL non-skeevy sponsors; closes #4271

.nvmrc

@@ -0,0 +1 @@
+12

docs/_data/blacklist.json

@@ -0,0 +1,21 @@
+[
+  "cheap-writing-service",
+  "emailmarketingservices-io",
+  "device-tricks1",
+  "my-true-media",
+  "yiannakis-ttafounas-ttafounas",
+  "writerseperhour",
+  "casinotop-com",
+  "casino-topp",
+  "casinoutanreg",
+  "supercazino-ro",
+  "igor-noskov",
+  "blue-link-seo",
+  "casino-online",
+  "domywriting",
+  "writemypaper4me",
+  "trust-my-paper",
+  "seowebsitetraffic-net",
+  "pfannen-test",
+  "mochajs"
+]

docs/_data/supporters.js

@@ -0,0 +1,133 @@
+#!/usr/bin/env node
+'use strict';
+
+const debug = require('debug')('mocha:docs:data:supporters');
+const needle = require('needle');
+const imageSize = require('image-size');
+const blacklist = new Set(require('./blacklist.json'));
+
+const API_ENDPOINT = 'https://api.opencollective.com/graphql/v2';
+
+const query = `query account($limit: Int, $offset: Int, $slug: String) {
+  account(slug: $slug) {
+    orders(limit: $limit, offset: $offset) {
+      limit
+      offset
+      totalCount
+      nodes {
+        fromAccount {
+          name
+          slug
+          website
+          imgUrlMed: imageUrl(height:64)
+          imgUrlSmall: imageUrl(height:32)
+          type
+        }
+        totalDonations {
+          value
+        }
+        createdAt
+      }
+    }
+  }
+}`;
+
+const graphqlPageSize = 1000;
+
+const nodeToSupporter = node => ({
+  name: node.fromAccount.name,
+  slug: node.fromAccount.slug,
+  website: node.fromAccount.website,
+  imgUrlMed: node.fromAccount.imgUrlMed,
+  imgUrlSmall: node.fromAccount.imgUrlSmall,
+  firstDonation: node.createdAt,
+  totalDonations: node.totalDonations.value * 100,
+  type: node.fromAccount.type
+});
+
+/**
+ * Retrieves donation data from OC
+ *
+ * Handles pagination
+ * @param {string} slug - Collective slug to get donation data from
+ * @returns {Promise<Object[]>} Array of raw donation data
+ */
+const getAllOrders = async (slug = 'mochajs') => {
+  let allOrders = [];
+  const variables = {limit: graphqlPageSize, offset: 0, slug};
+
+  // Handling pagination if necessary (2 pages for ~1400 results in May 2019)
+  while (true) {
+    const result = await needle(
+      'post',
+      API_ENDPOINT,
+      {query, variables},
+      {json: true}
+    );
+    const orders = result.body.data.account.orders.nodes;
+    allOrders = [...allOrders, ...orders];
+    variables.offset += graphqlPageSize;
+    if (orders.length < graphqlPageSize) {
+      debug('retrieved %d orders', allOrders.length);
+      return allOrders;
+    } else {
+      debug(
+        'loading page %d of orders...',
+        Math.floor(variables.offset / graphqlPageSize)
+      );
+    }
+  }
+};
+
+module.exports = async () => {
+  const orders = await getAllOrders();
+  // Deduplicating supporters with multiple orders
+  const uniqueSupporters = new Map();
+
+  const supporters = orders
+    .map(nodeToSupporter)
+    .filter(supporter => !blacklist.has(supporter.slug))
+    .reduce((supporters, supporter) => {
+      if (uniqueSupporters.has(supporter.slug)) {
+        // aggregate donation totals
+        uniqueSupporters.get(supporter.slug).totalDonations +=
+          supporter.totalDonations;
+        return supporters;
+      }
+      uniqueSupporters.set(supporter.slug, supporter);
+      return [...supporters, supporter];
+    }, [])
+    .sort((a, b) => b.totalDonations - a.totalDonations)
+    .reduce(
+      (supporters, supporter) => {
+        if (supporter.type === 'INDIVIDUAL') {
+          supporters.backers.push({
+            ...supporter,
+            avatar: supporter.imgUrlSmall
+          });
+        } else {
+          supporters.sponsors.push({...supporter, avatar: supporter.imgUrlMed});
+        }
+        return supporters;
+      },
+      {sponsors: [], backers: []}
+    );
+
+  // Fetch images for sponsors and save their image dimensions
+  await Promise.all(
+    supporters.sponsors.map(async sponsor => {
+      for await (const chunk of needle.get(sponsor.avatar)) {
+        sponsor.dimensions = imageSize(chunk);
+        break;
+      }
+    })
+  );
+
+  debug(
+    'found %d valid backers and %d valid sponsors (%d total)',
+    supporters.backers.length,
+    supporters.sponsors.length,
+    supporters.backers.length + supporters.sponsors.length
+  );
+  return supporters;
+};

docs/_includes/default.html → docs/_includes/default.liquid

@@ -4,12 +4,6 @@
     <meta charset="utf-8" />
     <meta name="viewport" content="width=device-width,initial-scale=1.0" />
     <title>{{ title }}</title>
-    <link
-      rel="preload"
-      href="https://opencollective.com/static/images/user.svg"
-      as="image"
-      crossorigin="anonymous"
-    />
     <link rel="stylesheet" href="css/normalize.css" />
     <link rel="stylesheet" href="css/style.css" />
     <link rel="stylesheet" href="css/prism.css" />
@@ -22,7 +16,7 @@
     <header id="_header">
       <h1>
         <a href="/">
-          <img id="mocha-logo" src="/images/mocha-logo.svg" alt="Mocha logo" />
+          <img id="mocha-logo" loading="eager" src="/images/mocha-logo.svg" alt="Mocha logo" />
         </a>
       </h1>
       <p id="tag"><em>simple</em>, <em>flexible</em>, <em>fun</em></p>
@@ -36,7 +30,7 @@ <h1>
         rel="external noopener"
         title="Mocha is sponsored by Matomo"
       >
-        <img src="images/matomo-logo.png?trim" alt="Matomo logo" />
+        <img src="images/matomo-logo.png?trim" loading="lazy" alt="Matomo logo" />
       </a>
       <a
         title="Mocha is an OpenJS Foundation Project"
@@ -45,6 +39,7 @@ <h1>
       >
         <img
           src="/images/openjsf-logo.svg"
+          loading="lazy"
           width="300"
           height="94"
           alt="OpenJS Foundation Logo"
@@ -56,7 +51,7 @@ <h1>
         title="Mocha is sponsored by Wallaby"
       >
         <figure id="wallaby-logo">
-          <img src="images/wallaby-logo.png?trim" alt="Wallaby logo" />
+          <img src="images/wallaby-logo.png?trim" loading="lazy" alt="Wallaby logo" />
           <figcaption>Wallaby</figcaption>
         </figure>
       </a>
@@ -153,7 +148,7 @@ <h1>
         <div class="netlify-badge">
           <a href="https://www.netlify.com">
             <img
-              src="https://www.netlify.com/img/global/badges/netlify-color-accent.svg"
+              src="https://www.netlify.com/img/global/badges/netlify-color-accent.svg" loading="lazy"
             />
           </a>
         </div>

docs/_includes/supporters.md

@@ -0,0 +1,68 @@
+## Sponsors
+
+Use Mocha at Work? Ask your manager or marketing team if they'd help [support](https://opencollective.com/mochajs#support) our project. Your company's logo will also be displayed on [npmjs.com](http://npmjs.com/package/mocha) and our [GitHub repository](https://github.com/mochajs/mocha#sponsors).
+
+<ul class="image-list" id="sponsors">
+{%- for supporter in supporters.sponsors -%}
+  <li>
+    {%- if supporter.website -%}
+    <a href="{{ supporter.website }}" target="_blank" rel="noopener" title="{{ supporter.name }}">
+    {%- endif -%}
+      <img src="{{ supporter.avatar }}" width="{{ supporter.dimensions.width }}" height="{{ supporter.dimensions.height }}" alt="{{ supporter.name }}" />
+    {%- if supporter.website -%}
+    </a>
+    {%- endif -%}
+  </li>
+{%- endfor -%}
+</ul>
+
+## Backers
+
+Find Mocha helpful? Become a [backer](https://opencollective.com/mochajs#support) and support Mocha with a monthly donation.
+
+<ul class="image-list faded-images" id="backers">
+{%- for supporter in supporters.backers -%}
+  <li>
+    {%- if supporter.website -%}
+    <a href="{{ supporter.website }}" target="_blank" rel="noopener" title="{{ supporter.name }}">
+    {%- endif -%}
+      <img src="{{ supporter.avatar }}" alt="{{ supporter.name }}" />
+    {%- if supporter.website -%}
+    </a>
+    {%- endif -%}
+  </li>
+{%- endfor -%}
+</ul>
+
+<script>
+(function() {
+  'use strict';
+
+  var imageLists = document.querySelectorAll('.image-list');
+
+  function getListItem(img) {
+    var parent = img.parentNode;
+    while (parent && parent.nodeName !== 'LI') {
+      parent = parent.parentNode;
+    }
+
+    return parent;
+  }
+
+  function onloadHandler() {
+    getListItem(this).classList.add('is-loaded');
+  }
+
+  Array.prototype.forEach.call(imageLists, function(imageList) {
+    var images = imageList.querySelectorAll('img');
+
+    for (var i = 0; i < images.length; i += 1) {
+      if (!images[i].complete) {
+        getListItem(images[i]).classList.add('faded-image');
+        images[i].onload = onloadHandler;
+        images[i].onerror = onloadHandler;
+      }
+    }
+  });
+})();
+</script>

docs/css/style.css

@@ -74,42 +74,57 @@ nav.badges a + a {
   margin-left: 3px;
 }
 
-.image-list {
+ul.image-list {
   overflow: hidden;
   text-align: center;
+  list-style: none;
+  column-count: 1;
+  padding: 0;
+  margin: 0;
 }
 
-.image-list a {
+ul.image-list li {
+  border-bottom: none;
   display: inline-block;
-  margin: 6px;
+  margin: 0 4px 0 4px;
+  max-height: 64px;
+  padding: 0;
+  line-height: 0;
 }
 
-.image-list a img {
+ul.image-list li a {
+  display: inline-block;
+}
+
+ul.image-list li img {
+  margin: 0;
+  padding: 0;
   display: block;
-  height: 64px;
+  max-height: 64px;
 }
 
-.faded-images {
-  background-color: #ddd;
-  border: 1px solid;
-  border-color: #ddd #ddd #ccc;
-  border-radius: 3px;
-  padding: 1em;
-  box-shadow: inset 0 0 10px #ccc;
+ul#backers.image-list li img {
+  width: 32px;
+  height: 32px;
+  overflow: hidden;
 }
 
-.faded-images img {
-  opacity: 0;
-  transition: opacity 0.3s;
+.faded-image {
+  background-color: rgba(0, 0, 0, 0.05);
 }
 
-.faded-images.is-loaded img {
-  opacity: 1;
+.faded-image.is-loaded {
+  background-color: rgba(0, 0, 0, 0);
+  transition: background-color 0.3s;
 }
 
-#_backers a img {
-  background: url(/images/backer-background.svg?inline) center center no-repeat;
-  width: 64px;
+.faded-image img {
+  opacity: 0;
+  transition: opacity 0.1s;
+}
+
+.faded-image.is-loaded img {
+  opacity: 1;
 }
 
 h2 {