Fix a number of strictNullChecks-related issues

eslint.config.ts

@@ -905,6 +905,7 @@ export default defineConfig([
     files: ['tests/e2e/**'],
     rules: {
       ...playwright.configs['flat/recommended'].rules,
+      'playwright/no-conditional-in-test': [0],
     },
   },
   {

tailwind.config.ts

@@ -2,6 +2,7 @@ import {readFileSync} from 'node:fs';
 import {env} from 'node:process';
 import {parse} from 'postcss';
 import plugin from 'tailwindcss/plugin.js';
+import {isTruthy} from './tools/utils.ts';
 import type {Config} from 'tailwindcss';
 
 const isProduction = env.NODE_ENV !== 'development';
@@ -37,7 +38,7 @@ export default {
     './{build,models,modules,routers,services}/**/*.go',
     './templates/**/*.tmpl',
     './web_src/js/**/*.{ts,js,vue}',
-  ].filter(Boolean),
+  ].filter(isTruthy),
   blocklist: [
     // classes that don't work without CSS variables from "@tailwind base" which we don't use
     'transform', 'shadow', 'ring', 'blur', 'grayscale', 'invert', '!invert', 'filter', '!filter',
@@ -121,4 +122,4 @@ export default {
       });
     }),
   ],
-} satisfies Config;
+} satisfies Config as Config;

tests/e2e/example.test.e2e.ts

@@ -45,8 +45,9 @@ test('login', async ({page}, workerInfo) => {
 
 test('logged in user', async ({browser}, workerInfo) => {
   const context = await load_logged_in_context(browser, workerInfo, 'user2');
-  const page = await context.newPage();
+  if (!context) return;
 
+  const page = await context.newPage();
   await page.goto('/');
 
   // Make sure we routed to the home page. Else login failed.

tools/generate-svg.ts

@@ -47,6 +47,11 @@ function processAssetsSvgFiles(pattern: string, opts: Opts = {}) {
   return glob(pattern).map((path) => processAssetsSvgFile(path, opts));
 }
 
+function lowercaseKeys(obj: Record<string, any> | undefined) {
+  if (!obj) return obj;
+  return Object.fromEntries(Object.entries(obj).map(([key, value]) => [key.toLowerCase(), value]));
+}
+
 async function processMaterialFileIcons() {
   const paths = glob('node_modules/material-icon-theme/icons/*.svg');
   const svgSymbols: Record<string, string> = {};
@@ -76,18 +81,24 @@ async function processMaterialFileIcons() {
   //    * https://code.visualstudio.com/docs/languages/identifiers#_known-language-identifiers
   //    * https://github.com/microsoft/vscode/tree/1.98.0/extensions
   delete iconRules.iconDefinitions;
-  for (const [k, v] of Object.entries(iconRules.fileNames)) iconRules.fileNames[k.toLowerCase()] = v;
-  for (const [k, v] of Object.entries(iconRules.folderNames)) iconRules.folderNames[k.toLowerCase()] = v;
-  for (const [k, v] of Object.entries(iconRules.fileExtensions)) iconRules.fileExtensions[k.toLowerCase()] = v;
+
+  iconRules.fileNames = lowercaseKeys(iconRules.fileNames);
+  iconRules.folderNames = lowercaseKeys(iconRules.fileNames);
+  iconRules.fileExtensions = lowercaseKeys(iconRules.fileNames);
+
   // Use VSCode's "Language ID" mapping from its extensions
   for (const [_, langIdExtMap] of Object.entries(vscodeExtensions)) {
     for (const [langId, names] of Object.entries(langIdExtMap)) {
       for (const name of names) {
         const nameLower = name.toLowerCase();
         if (nameLower[0] === '.') {
-          iconRules.fileExtensions[nameLower.substring(1)] ??= langId;
+          if (iconRules.fileExtensions) {
+            iconRules.fileExtensions[nameLower.substring(1)] ??= langId;
+          }
         } else {
-          iconRules.fileNames[nameLower] ??= langId;
+          if (iconRules.fileNames) {
+            iconRules.fileNames[nameLower] ??= langId;
+          }
         }
       }
     }

tools/utils.ts

@@ -0,0 +1,3 @@
+export function isTruthy<T>(value: T): value is T extends false | '' | 0 | null | undefined ? never : T { // eslint-disable-line unicorn/prefer-native-coercion-functions
+  return Boolean(value);
+}

tsconfig.json

@@ -40,6 +40,7 @@
     "strictBindCallApply": true,
     "strictBuiltinIteratorReturn": true,
     "strictFunctionTypes": true,
+    "strictNullChecks": false,
     "stripInternal": true,
     "verbatimModuleSyntax": true,
     "types": [

web_src/js/features/repo-issue.ts

@@ -261,7 +261,7 @@ export function initRepoPullRequestReview() {
     if (commentDiv) {
       // get the name of the parent id
       const groupID = commentDiv.closest('div[id^="code-comments-"]')?.getAttribute('id');
-      if (groupID && groupID.startsWith('code-comments-')) {
+      if (groupID?.startsWith('code-comments-')) {
         const id = groupID.slice(14);
         const ancestorDiffBox = commentDiv.closest<HTMLElement>('.diff-file-box');
 

webpack.config.ts

@@ -12,6 +12,7 @@ import {readFileSync, globSync} from 'node:fs';
 import {env} from 'node:process';
 import tailwindcss from 'tailwindcss';
 import tailwindConfig from './tailwind.config.ts';
+import {isTruthy} from './tools/utils.ts';
 
 const {EsbuildPlugin} = EsBuildLoader;
 const {SourceMapDevToolPlugin, DefinePlugin, EnvironmentPlugin} = webpack;
@@ -30,7 +31,7 @@ const isProduction = env.NODE_ENV !== 'development';
 // false - all disabled
 let sourceMaps;
 if ('ENABLE_SOURCEMAP' in env) {
-  sourceMaps = ['true', 'false'].includes(env.ENABLE_SOURCEMAP) ? env.ENABLE_SOURCEMAP : 'reduced';
+  sourceMaps = ['true', 'false'].includes(env.ENABLE_SOURCEMAP || '') ? env.ENABLE_SOURCEMAP : 'reduced';
 } else {
   sourceMaps = isProduction ? 'reduced' : 'true';
 }
@@ -95,7 +96,7 @@ export default {
     path: fileURLToPath(new URL('public/assets', import.meta.url)),
     filename: () => 'js/[name].js',
     chunkFilename: ({chunk}) => {
-      const language = (/monaco.*languages?_.+?_(.+?)_/.exec(String(chunk.id)) || [])[1];
+      const language = (/monaco.*languages?_.+?_(.+?)_/.exec(String(chunk?.id)) || [])[1];
       return `js/${language ? `monaco-language-${language.toLowerCase()}` : `[name]`}.[contenthash:8].js`;
     },
   },
@@ -270,7 +271,7 @@ export default {
     excludeAssets: [
       /^js\/monaco-language-.+\.js$/,
       !isProduction && /^licenses.txt$/,
-    ].filter(Boolean),
+    ].filter(isTruthy),
     groupAssetsByChunk: false,
     groupAssetsByEmitStatus: false,
     groupAssetsByInfo: false,