Update eslint to v9

.build/types.ts

@@ -1,15 +1,22 @@
+/* eslint-disable no-console */
 import { packageOptions } from './common.js';
 import { execSync } from 'child_process';
 
 const buildType = (packageName: string) => {
   console.log(`Building types for ${packageName}`);
   try {
     const out = execSync(`tsc -p ./packages/${packageName}/tsconfig.json --emitDeclarationOnly`);
-    out.length > 0 && console.log(out.toString());
+    if (out.length > 0) {
+      console.log(out.toString());
+    }
   } catch (e) {
     console.error(e);
-    e.stdout.length > 0 && console.error(e.stdout.toString());
-    e.stderr.length > 0 && console.error(e.stderr.toString());
+    if (e.stdout.length > 0) {
+      console.error(e.stdout.toString());
+    }
+    if (e.stderr.length > 0) {
+      console.error(e.stderr.toString());
+    }
   }
 };
 

.cspell/code-terms.txt

@@ -13,6 +13,7 @@ bqstring
 BQUOTE
 bramp
 BRKT
+brotli
 callbackargs
 callbackname
 classdef
@@ -111,6 +112,7 @@ STYLECLASS
 STYLEOPTS
 subcomponent
 subcomponents
+subconfig
 SUBROUTINEEND
 SUBROUTINESTART
 Subschemas
@@ -125,6 +127,7 @@ titlevalue
 topbar
 TRAPEND
 TRAPSTART
+treemap
 ts-nocheck
 tsdoc
 typeof

.cspell/contributors.txt

@@ -4,5 +4,6 @@ cpettitt
 Dong Cai
 Nikolay Rozhkov
 Peng Xiao
+Per Brolin
 subhash-halder
 Vinod Sidharth

.cspell/libraries.txt

@@ -55,12 +55,14 @@ pyplot
 redmine
 rehype
 rscratch
+shiki
 sparkline
 sphinxcontrib
 ssim
 stylis
 Swimm
 tsbuildinfo
+tseslint
 Tuleap
 Typora
 unocss

.cspell/misc-terms.txt

@@ -1 +1,4 @@
+BRANDES
+handdrawn
+KOEPF
 newbranch

.esbuild/build.ts

@@ -2,7 +2,8 @@ import { build } from 'esbuild';
 import { mkdir, writeFile } from 'node:fs/promises';
 import { packageOptions } from '../.build/common.js';
 import { generateLangium } from '../.build/generateLangium.js';
-import { MermaidBuildOptions, defaultOptions, getBuildConfig } from './util.js';
+import type { MermaidBuildOptions } from './util.js';
+import { defaultOptions, getBuildConfig } from './util.js';
 
 const shouldVisualize = process.argv.includes('--visualize');
 
@@ -35,11 +36,11 @@ const buildPackage = async (entryName: keyof typeof packageOptions) => {
 
   if (shouldVisualize) {
     for (const { metafile } of results) {
-      if (!metafile) {
+      if (!metafile?.outputs) {
         continue;
       }
       const fileName = Object.keys(metafile.outputs)
-        .filter((file) => !file.includes('chunks') && file.endsWith('js'))[0]
+        .find((file) => !file.includes('chunks') && file.endsWith('js'))
         .replace('dist/', '');
       // Upload metafile into https://esbuild.github.io/analyze/
       await writeFile(`stats/${fileName}.meta.json`, JSON.stringify(metafile));
@@ -48,13 +49,14 @@ const buildPackage = async (entryName: keyof typeof packageOptions) => {
 };
 
 const handler = (e) => {
+  // eslint-disable-next-line no-console
   console.error(e);
   process.exit(1);
 };
 
 const main = async () => {
   await generateLangium();
-  await mkdir('stats').catch(() => {});
+  await mkdir('stats', { recursive: true });
   const packageNames = Object.keys(packageOptions) as (keyof typeof packageOptions)[];
   // it should build `parser` before `mermaid` because it's a dependency
   for (const pkg of packageNames) {

.esbuild/jisonPlugin.ts

@@ -1,6 +1,6 @@
 import { readFile } from 'node:fs/promises';
 import { transformJison } from '../.build/jisonTransformer.js';
-import { Plugin } from 'esbuild';
+import type { Plugin } from 'esbuild';
 
 export const jisonPlugin: Plugin = {
   name: 'jison',

.esbuild/server.ts

@@ -1,11 +1,12 @@
-import express from 'express';
-import type { NextFunction, Request, Response } from 'express';
+/* eslint-disable no-console */
+import chokidar from 'chokidar';
 import cors from 'cors';
-import { getBuildConfig, defaultOptions } from './util.js';
 import { context } from 'esbuild';
-import chokidar from 'chokidar';
-import { generateLangium } from '../.build/generateLangium.js';
+import type { Request, Response } from 'express';
+import express from 'express';
 import { packageOptions } from '../.build/common.js';
+import { generateLangium } from '../.build/generateLangium.js';
+import { defaultOptions, getBuildConfig } from './util.js';
 
 const configs = Object.values(packageOptions).map(({ packageName }) =>
   getBuildConfig({ ...defaultOptions, minify: false, core: false, entryName: packageName })
@@ -40,7 +41,7 @@ const rebuildAll = async () => {
 };
 
 let clients: { id: number; response: Response }[] = [];
-function eventsHandler(request: Request, response: Response, next: NextFunction) {
+function eventsHandler(request: Request, response: Response) {
   const headers = {
     'Content-Type': 'text/event-stream',
     Connection: 'keep-alive',
@@ -66,6 +67,7 @@ function handleFileChange() {
   if (timeoutID !== undefined) {
     clearTimeout(timeoutID);
   }
+  // eslint-disable-next-line @typescript-eslint/no-misused-promises
   timeoutID = setTimeout(async () => {
     await rebuildAll();
     sendEventsToAll();
@@ -86,14 +88,14 @@ async function createServer() {
       ignoreInitial: true,
       ignored: [/node_modules/, /dist/, /docs/, /coverage/],
     })
+    // eslint-disable-next-line @typescript-eslint/no-misused-promises
     .on('all', async (event, path) => {
       // Ignore other events.
       if (!['add', 'change'].includes(event)) {
         return;
       }
       console.log(`${path} changed. Rebuilding...`);
-
-      if (/\.langium$/.test(path)) {
+      if (path.endsWith('.langium')) {
         await generateLangium();
       }
       handleFileChange();
@@ -112,4 +114,4 @@ async function createServer() {
   });
 }
 
-createServer();
+void createServer();

.esbuild/util.ts

@@ -56,7 +56,7 @@ export const getBuildConfig = (options: MermaidBuildOptions): BuildOptions => {
   const external: string[] = ['require', 'fs', 'path'];
   const { name, file, packageName } = packageOptions[entryName];
   const outFileName = getFileName(name, options);
-  let output: BuildOptions = buildOptions({
+  const output: BuildOptions = buildOptions({
     absWorkingDir: resolve(__dirname, `../packages/${packageName}`),
     entryPoints: {
       [outFileName]: `src/${file}`,