Take a stab at porting existing components to Vue3

package.json

@@ -9,6 +9,7 @@
   "dependencies": {
     "@claviska/jquery-minicolors": "2.3.6",
     "@primer/octicons": "17.2.0",
+    "@vue/compiler-sfc": "3.2.37",
     "add-asset-webpack-plugin": "2.0.1",
     "css-loader": "6.7.1",
     "dropzone": "6.0.0-beta.2",
@@ -31,11 +32,10 @@
     "swagger-ui-dist": "4.11.1",
     "tributejs": "5.1.3",
     "uint8-to-base64": "0.2.0",
-    "vue": "2.6.14",
-    "vue-bar-graph": "1.3.1",
-    "vue-calendar-heatmap": "0.8.4",
-    "vue-loader": "15.9.8",
-    "vue-template-compiler": "2.6.14",
+    "vue": "3.2.37",
+    "vue-bar-graph": "2.0.0",
+    "vue-loader": "17.0.0",
+    "vue3-calendar-heatmap": "2.0.0",
     "webpack": "5.72.1",
     "webpack-cli": "4.9.2",
     "workbox-routing": "6.5.3",

web_src/js/components/ActivityHeatmap.vue

@@ -15,7 +15,7 @@
   </div>
 </template>
 <script>
-import {CalendarHeatmap} from 'vue-calendar-heatmap';
+import {CalendarHeatmap} from 'vue3-calendar-heatmap';
 
 export default {
   name: 'ActivityHeatmap',

web_src/js/components/DashboardRepoList.js

@@ -1,11 +1,11 @@
-import Vue from 'vue';
+import {createApp, nextTick} from 'vue';
 import $ from 'jquery';
 import {initVueSvg, vueDelimiters} from './VueComponentLoader.js';
 
 const {appSubUrl, assetUrlPrefix, pageData} = window.config;
 
-function initVueComponents() {
-  Vue.component('repo-search', {
+function initVueComponents(app) {
+  app.component('repo-search', {
     delimiters: vueDelimiters,
     props: {
       searchLimit: {
@@ -141,7 +141,7 @@ function initVueComponents() {
       $(this.$el).find('.tooltip').popup();
       $(this.$el).find('.dropdown').dropdown();
       this.setCheckboxes();
-      Vue.nextTick(() => {
+      nextTick(() => {
         this.$refs.search.focus();
       });
     },
@@ -189,7 +189,7 @@ function initVueComponents() {
         this.reposFilter = filter;
         this.repos = [];
         this.page = 1;
-        Vue.set(this.counts, `${filter}:${this.archivedFilter}:${this.privateFilter}`, 0);
+        this.counts[`${filter}:${this.archivedFilter}:${this.privateFilter}`] = 0;
         this.searchRepos();
       },
 
@@ -258,7 +258,7 @@ function initVueComponents() {
         this.page = 1;
         this.repos = [];
         this.setCheckboxes();
-        Vue.set(this.counts, `${this.reposFilter}:${this.archivedFilter}:${this.privateFilter}`, 0);
+        this.counts[`${this.reposFilter}:${this.archivedFilter}:${this.privateFilter}`] = 0;
         this.searchRepos();
       },
 
@@ -280,7 +280,7 @@ function initVueComponents() {
         this.page = 1;
         this.repos = [];
         this.setCheckboxes();
-        Vue.set(this.counts, `${this.reposFilter}:${this.archivedFilter}:${this.privateFilter}`, 0);
+        this.counts[`${this.reposFilter}:${this.archivedFilter}:${this.privateFilter}`] = 0;
         this.searchRepos();
       },
 
@@ -294,7 +294,7 @@ function initVueComponents() {
           this.page = 1;
         }
         this.repos = [];
-        Vue.set(this.counts, `${this.reposFilter}:${this.archivedFilter}:${this.privateFilter}`, 0);
+        this.counts[`${this.reposFilter}:${this.archivedFilter}:${this.privateFilter}`] = 0;
         this.searchRepos();
       },
 
@@ -328,7 +328,7 @@ function initVueComponents() {
           if (searchedQuery === '' && searchedMode === '' && this.archivedFilter === 'both') {
             this.reposTotalCount = count;
           }
-          Vue.set(this.counts, `${this.reposFilter}:${this.archivedFilter}:${this.privateFilter}`, count);
+          this.counts[`${this.reposFilter}:${this.archivedFilter}:${this.privateFilter}`] = count;
           this.finalPage = Math.ceil(count / this.searchLimit);
           this.updateHistory();
           this.isLoading = false;
@@ -353,23 +353,22 @@ function initVueComponents() {
   });
 }
 
-
 export function initDashboardRepoList() {
   const el = document.getElementById('dashboard-repo-list');
   const dashboardRepoListData = pageData.dashboardRepoList || null;
   if (!el || !dashboardRepoListData) return;
 
-  initVueSvg();
-  initVueComponents();
-  new Vue({
-    el,
+  const app = createApp({
     delimiters: vueDelimiters,
-    data: () => {
+    data() {
       return {
         searchLimit: dashboardRepoListData.searchLimit || 0,
         subUrl: appSubUrl,
         uid: dashboardRepoListData.uid || 0,
       };
     },
   });
+  initVueSvg(app);
+  initVueComponents(app);
+  app.mount(el);
 }

web_src/js/components/RepoBranchTagDropdown.js

@@ -1,4 +1,4 @@
-import Vue from 'vue';
+import {createApp, nextTick} from 'vue';
 import $ from 'jquery';
 import {vueDelimiters} from './VueComponentLoader.js';
 
@@ -37,8 +37,7 @@ export function initRepoBranchTagDropdown(selector) {
       });
     });
     $data.remove();
-    new Vue({
-      el: this,
+    createApp({
       delimiters: vueDelimiters,
       data,
       computed: {
@@ -99,7 +98,7 @@ export function initRepoBranchTagDropdown(selector) {
         document.body.addEventListener('click', (event) => {
           if (this.$el.contains(event.target)) return;
           if (this.menuVisible) {
-            Vue.set(this, 'menuVisible', false);
+            this.menuVisible = false;
           }
         });
       },
@@ -135,15 +134,15 @@ export function initRepoBranchTagDropdown(selector) {
             if (this.submitForm) {
               $(`#${this.branchForm}`).trigger('submit');
             }
-            Vue.set(this, 'menuVisible', false);
+            this.menuVisible = false;
           }
         },
         createNewBranch() {
           if (!this.showCreateNewBranch) return;
           $(this.$refs.newBranchForm).trigger('submit');
         },
         focusSearchField() {
-          Vue.nextTick(() => {
+          nextTick(() => {
             this.$refs.searchField.focus();
           });
         },
@@ -212,6 +211,6 @@ export function initRepoBranchTagDropdown(selector) {
           }
         }
       }
-    });
+    }).mount(this);
   });
 }

web_src/js/components/VueComponentLoader.js

@@ -1,4 +1,4 @@
-import Vue from 'vue';
+import {createApp} from 'vue';
 import {svgs} from '../svg.js';
 
 export const vueDelimiters = ['${', '}'];
@@ -8,13 +8,15 @@ export function initVueEnv() {
   if (vueEnvInited) return;
   vueEnvInited = true;
 
+  /* As far as I could tell, this is no longer possible.
+   * But there seem not to be a guide what to do instead.
   const isProd = window.config.runModeIsProd;
-  Vue.config.productionTip = false;
   Vue.config.devtools = !isProd;
+  */
 }
 
 let vueSvgInited = false;
-export function initVueSvg() {
+export function initVueSvg(app) {
   if (vueSvgInited) return;
   vueSvgInited = true;
 
@@ -24,7 +26,7 @@ export function initVueSvg() {
       .replace(/height="[0-9]+"/, 'v-bind:height="size"')
       .replace(/width="[0-9]+"/, 'v-bind:width="size"');
 
-    Vue.component(name, {
+    app.component(name, {
       props: {
         size: {
           type: String,
@@ -42,8 +44,7 @@ export function initVueApp(el, opts = {}) {
   }
   if (!el) return null;
 
-  return new Vue(Object.assign({
-    el,
-    delimiters: vueDelimiters,
-  }, opts));
+  return createApp(
+    Object.assign({delimiters: vueDelimiters}, opts)
+  ).mount(el);
 }

web_src/js/features/contextpopup.js

@@ -1,5 +1,5 @@
 import $ from 'jquery';
-import Vue from 'vue';
+import {createApp} from 'vue';
 import ContextPopup from '../components/ContextPopup.vue';
 import {parseIssueHref} from '../utils.js';
 
@@ -20,14 +20,12 @@ export default function initContextPopups() {
     el.innerHTML = '<div></div>';
     this.parentNode.insertBefore(el, this.nextSibling);
 
-    const View = Vue.extend({
+    const view = createApp({
       render: (createElement) => createElement(ContextPopup),
     });
 
-    const view = new View();
-
     try {
-      view.$mount(el.firstChild);
+      view.mount(el.firstChild);
     } catch (err) {
       console.error(err);
       el.textContent = 'ContextPopup failed to load';

web_src/js/features/heatmap.js

@@ -1,4 +1,4 @@
-import Vue from 'vue';
+import {createApp} from 'vue';
 import ActivityHeatmap from '../components/ActivityHeatmap.vue';
 
 export default function initHeatmap() {
@@ -17,11 +17,11 @@ export default function initHeatmap() {
       return {date: new Date(v), count: heatmap[v]};
     });
 
-    const View = Vue.extend({
+    const View = createApp({
       render: (createElement) => createElement(ActivityHeatmap, {props: {values}}),
     });
 
-    new View().$mount(el);
+    View.mount(el);
   } catch (err) {
     console.error('Heatmap failed to load', err);
     el.textContent = 'Heatmap failed to load';

web_src/js/features/repo-issue-pr-form.js

@@ -1,12 +1,12 @@
-import Vue from 'vue';
+import {createApp} from 'vue';
 import PullRequestMergeForm from '../components/PullRequestMergeForm.vue';
 
 export default function initPullRequestMergeForm() {
   const el = document.getElementById('pull-request-merge-form');
   if (!el) return;
 
-  const View = Vue.extend({
+  const View = createApp({
     render: (createElement) => createElement(PullRequestMergeForm),
   });
-  new View().$mount(el);
+  View.mount(el);
 }

web_src/js/svg.js

@@ -18,8 +18,6 @@ import octiconRepoTemplate from '../../public/img/svg/octicon-repo-template.svg'
 import octiconTriangleDown from '../../public/img/svg/octicon-triangle-down.svg';
 import octiconFile from '../../public/img/svg/octicon-file.svg';
 
-import Vue from 'vue';
-
 export const svgs = {
   'octicon-chevron-down': octiconChevronDown,
   'octicon-chevron-right': octiconChevronRight,
@@ -58,7 +56,8 @@ export function svg(name, size = 16, className = '') {
   return serializer.serializeToString(svgNode);
 }
 
-export const SvgIcon = Vue.component('SvgIcon', {
+export const SvgIcon = {
+  name: 'SvgIcon',
   props: {
     name: {type: String, required: true},
     size: {type: Number, default: 16},
@@ -72,4 +71,4 @@ export const SvgIcon = Vue.component('SvgIcon', {
   },
 
   template: `<span v-html="svg" />`
-});
+};

webpack.config.js

@@ -4,13 +4,12 @@ import AddAssetPlugin from 'add-asset-webpack-plugin';
 import LicenseCheckerWebpackPlugin from 'license-checker-webpack-plugin';
 import MiniCssExtractPlugin from 'mini-css-extract-plugin';
 import MonacoWebpackPlugin from 'monaco-editor-webpack-plugin';
-import VueLoader from 'vue-loader';
+import {VueLoaderPlugin} from 'vue-loader';
 import EsBuildLoader from 'esbuild-loader';
 import {parse, dirname} from 'path';
 import webpack from 'webpack';
 import {fileURLToPath} from 'url';
 
-const {VueLoaderPlugin} = VueLoader;
 const {ESBuildMinifyPlugin} = EsBuildLoader;
 const {SourceMapDevToolPlugin} = webpack;
 const glob = (pattern) => fastGlob.sync(pattern, {
@@ -228,9 +227,6 @@ export default {
   },
   resolve: {
     symlinks: false,
-    alias: {
-      vue$: 'vue/dist/vue.esm.js', // needed because vue's default export is the runtime only
-    },
   },
   watchOptions: {
     ignored: [