doc/website: migration to docosaurus v2 (#1384)

* WIP - migrating entgo.io to docosaurus v2

* organizing pages a bit to be better suited for v2 site structure

* doc/website: finish migration to docusaurus v2

Co-authored-by: Rotem Tamir <rotemtamir@gmail.com>

doc/website/src/js/code-block-buttons.js

@@ -0,0 +1,47 @@
+// Turn off ESLint for this file because it's sent down to users as-is.
+/* eslint-disable */
+window.addEventListener('load', function() {
+    function button(label, ariaLabel, icon, className) {
+        const btn = document.createElement('button');
+        btn.classList.add('btnIcon', className);
+        btn.setAttribute('type', 'button');
+        btn.setAttribute('aria-label', ariaLabel);
+        btn.innerHTML =
+            '<div class="btnIcon__body">' +
+            icon +
+            '<strong class="btnIcon__label">' +
+            label +
+            '</strong>' +
+            '</div>';
+        return btn;
+    }
+
+    function addButtons(codeBlockSelector, btn) {
+        document.querySelectorAll(codeBlockSelector).forEach(function(code) {
+            code.parentNode.appendChild(btn.cloneNode(true));
+        });
+    }
+
+    const copyIcon =
+        '<svg width="12" height="12" viewBox="340 364 14 15" xmlns="http://www.w3.org/2000/svg"><path fill="currentColor" d="M342 375.974h4v.998h-4v-.998zm5-5.987h-5v.998h5v-.998zm2 2.994v-1.995l-3 2.993 3 2.994v-1.996h5v-1.995h-5zm-4.5-.997H342v.998h2.5v-.997zm-2.5 2.993h2.5v-.998H342v.998zm9 .998h1v1.996c-.016.28-.11.514-.297.702-.187.187-.422.28-.703.296h-10c-.547 0-1-.452-1-.998v-10.976c0-.546.453-.998 1-.998h3c0-1.107.89-1.996 2-1.996 1.11 0 2 .89 2 1.996h3c.547 0 1 .452 1 .998v4.99h-1v-2.995h-10v8.98h10v-1.996zm-9-7.983h8c0-.544-.453-.996-1-.996h-1c-.547 0-1-.453-1-.998 0-.546-.453-.998-1-.998-.547 0-1 .452-1 .998 0 .545-.453.998-1 .998h-1c-.547 0-1 .452-1 .997z" fill-rule="evenodd"/></svg>';
+
+    addButtons(
+        '.hljs',
+        button('Copy', 'Copy code to clipboard', copyIcon, 'btnClipboard'),
+    );
+
+    const clipboard = new ClipboardJS('.btnClipboard', {
+        target: function(trigger) {
+            return trigger.parentNode.querySelector('code');
+},
+    });
+
+    clipboard.on('success', function(event) {
+        event.clearSelection();
+        const textEl = event.trigger.querySelector('.btnIcon__label');
+        textEl.textContent = 'Copied';
+        setTimeout(function() {
+            textEl.textContent = 'Copy';
+        }, 2000);
+    });
+});

doc/website/src/js/custom.js

@@ -0,0 +1,17 @@
+
+/**
+ * Copyright 2019-present Facebook Inc. All rights reserved.
+ *
+ * This source code is licensed under the Apache 2.0 license found
+ * in the LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ */
+
+/* eslint-disable */
+window.addEventListener('load', function() {
+    // add an id tag for images based on their alt attribute.
+    document.querySelectorAll('.container img').forEach(function(el) {
+        el.id = el.alt;
+    });
+});