Update eslint to the latest version

configs/errors.eslintrc.json

@@ -50,7 +50,8 @@
     ],
     "no-new-wrappers": "error",
     "no-null/no-null": "error",
-    "no-shadow": [
+    "no-shadow": "off",
+    "@typescript-eslint/no-shadow": [
       "error",
       {
         "hoist": "all"

package.json

@@ -17,19 +17,19 @@
     "@types/sinon": "^2.3.5",
     "@types/temp": "^0.8.29",
     "@types/uuid": "^7.0.3",
-    "@typescript-eslint/eslint-plugin": "^3.1.0",
-    "@typescript-eslint/eslint-plugin-tslint": "^3.1.0",
-    "@typescript-eslint/parser": "^3.1.0",
+    "@typescript-eslint/eslint-plugin": "^4.8.1",
+    "@typescript-eslint/eslint-plugin-tslint": "^4.8.1",
+    "@typescript-eslint/parser": "^4.8.1",
     "chai-string": "^1.4.0",
     "colors": "^1.4.0",
     "concurrently": "^3.5.0",
     "electron-mocha": "^8.2.0",
-    "eslint": "^6.8.0",
+    "eslint": "^7.14.0",
     "eslint-plugin-deprecation": "^1.1.0",
-    "eslint-plugin-import": "^2.20.0",
+    "eslint-plugin-import": "^2.22.1",
     "eslint-plugin-no-null": "^1.0.2",
-    "eslint-plugin-no-unsanitized": "^3.1.2",
-    "eslint-plugin-react": "^7.20.6",
+    "eslint-plugin-no-unsanitized": "^3.1.4",
+    "eslint-plugin-react": "^7.21.5",
     "ignore-styles": "^5.0.1",
     "jsdom": "^11.5.1",
     "lerna": "^2.2.0",

packages/callhierarchy/src/common/glob.ts

@@ -24,7 +24,7 @@ import * as strings from '@theia/core/lib/common/strings';
 import * as paths from './paths';
 import { CharCode } from '@theia/core/lib/common/char-code';
 
-/* eslint-disable no-shadow, no-null/no-null */
+/* eslint-disable @typescript-eslint/no-shadow, no-null/no-null */
 export interface IExpression {
     // eslint-disable-next-line @typescript-eslint/no-explicit-any
     [pattern: string]: boolean | SiblingClause | any;
@@ -429,10 +429,10 @@ function trivia3(pattern: string, options: IGlobOptions): ParsedStringPattern {
 function trivia4and5(path: string, pattern: string, matchPathEnds: boolean): ParsedStringPattern {
     const nativePath = paths.nativeSep !== paths.sep ? path.replace(ALL_FORWARD_SLASHES, paths.nativeSep) : path;
     const nativePathEnd = paths.nativeSep + nativePath;
-    // eslint-disable-next-line no-shadow
+    // eslint-disable-next-line @typescript-eslint/no-shadow
     const parsedPattern: ParsedStringPattern = matchPathEnds ? function (path, basename): string {
         return path && (path === nativePath || strings.endsWith(path, nativePathEnd)) ? pattern : null!;
-        // eslint-disable-next-line no-shadow
+        // eslint-disable-next-line @typescript-eslint/no-shadow
     } : function (path, basename): string {
         return path && path === nativePath ? pattern : null!;
     };
@@ -560,7 +560,7 @@ export function isRelativePattern(obj: any): obj is IRelativePattern {
  * Same as `parse`, but the ParsedExpression is guaranteed to return a Promise
  */
 export function parseToAsync(expression: IExpression, options?: IGlobOptions): ParsedExpression {
-    // eslint-disable-next-line no-shadow
+    // eslint-disable-next-line @typescript-eslint/no-shadow
     const parsedExpression = parse(expression, options);
     return (path: string, basename?: string, hasSibling?: (name: string) => boolean | Promise<boolean>): string | Promise<string> => {
         const result = parsedExpression(path, basename, hasSibling);
@@ -591,9 +591,9 @@ function parsedExpression(expression: IExpression, options: IGlobOptions): Parse
             return <ParsedStringPattern>parsedPatterns[0];
         }
 
-        // eslint-disable-next-line no-shadow
+        // eslint-disable-next-line @typescript-eslint/no-shadow
         const resultExpression: ParsedStringPattern = function (path: string, basename: string): string | Promise<string> {
-            // eslint-disable-next-line no-shadow
+            // eslint-disable-next-line @typescript-eslint/no-shadow
             // tslint:disable-next-line:one-variable-per-declaration
             for (let i = 0, n = parsedPatterns.length; i < n; i++) {
                 // Pattern matches path
@@ -606,13 +606,13 @@ function parsedExpression(expression: IExpression, options: IGlobOptions): Parse
             return null!;
         };
 
-        // eslint-disable-next-line no-shadow
+        // eslint-disable-next-line @typescript-eslint/no-shadow
         const withBasenames = parsedPatterns.find(pattern => !!(<ParsedStringPattern>pattern).allBasenames);
         if (withBasenames) {
             resultExpression.allBasenames = (<ParsedStringPattern>withBasenames).allBasenames;
         }
 
-        // eslint-disable-next-line no-shadow
+        // eslint-disable-next-line @typescript-eslint/no-shadow
         const allPaths = parsedPatterns.reduce((all, current) => current.allPaths ? all.concat(current.allPaths) : all, <string[]>[]);
         if (allPaths.length) {
             resultExpression.allPaths = allPaths;
@@ -624,7 +624,7 @@ function parsedExpression(expression: IExpression, options: IGlobOptions): Parse
     const resultExpression: ParsedStringPattern = function (path: string, basename: string, hasSibling?: (name: string) => boolean | Promise<boolean>): string | Promise<string> {
         let name: string = null!;
 
-        // eslint-disable-next-line no-shadow
+        // eslint-disable-next-line @typescript-eslint/no-shadow
         for (let i = 0, n = parsedPatterns.length; i < n; i++) {
             // Pattern matches path
             const parsedPattern = (<ParsedExpressionPattern>parsedPatterns[i]);

packages/callhierarchy/src/common/paths.ts

@@ -83,7 +83,7 @@ export function normalize(path: string, toOSPath?: boolean): string {
         return path;
     }
 
-    // eslint-disable-next-line no-shadow
+    // eslint-disable-next-line @typescript-eslint/no-shadow
     const sep = wantsBackslash ? '\\' : '/';
     const root = getRoot(path, sep);
 
@@ -133,7 +133,7 @@ function streql(value: string, start: number, end: number, other: string): boole
  * `getRoot('files:///files/path') === files:///`,
  * or `getRoot('\\server\shares\path') === \\server\shares\`
  */
-// eslint-disable-next-line no-shadow
+// eslint-disable-next-line @typescript-eslint/no-shadow
 export function getRoot(path: string, sep: string = '/'): string {
 
     if (!path) {
@@ -150,7 +150,7 @@ export function getRoot(path: string, sep: string = '/'): string {
             //               ^^^^^^^^^^^^^^^^^^^
             code = path.charCodeAt(2);
             if (code !== CharCode.Slash && code !== CharCode.Backslash) {
-                // eslint-disable-next-line no-shadow
+                // eslint-disable-next-line @typescript-eslint/no-shadow
                 let pos = 3;
                 const start = pos;
                 for (; pos < len; pos++) {

packages/filesystem/src/browser/file-service.ts

@@ -24,7 +24,7 @@
 // and https://github.com/microsoft/vscode/blob/04c36be045a94fee58e5f8992d3e3fd980294a84/src/vs/workbench/services/workingCopy/common/workingCopyFileOperationParticipant.ts
 
 /* eslint-disable max-len */
-/* eslint-disable no-shadow */
+/* eslint-disable @typescript-eslint/no-shadow */
 /* eslint-disable no-null/no-null */
 /* eslint-disable @typescript-eslint/tslint/config */
 /* eslint-disable @typescript-eslint/no-explicit-any */

packages/filesystem/src/common/remote-file-system-provider.ts

@@ -229,7 +229,7 @@ export class RemoteFileSystemProvider implements Required<FileSystemProvider>, D
 
     readFileStream(resource: URI, opts: FileReadStreamOptions, token: CancellationToken): ReadableStreamEvents<Uint8Array> {
         const capturedError = new Error();
-        // eslint-disable-next-line no-shadow
+        // eslint-disable-next-line @typescript-eslint/no-shadow
         const stream = newWriteableStream<Uint8Array>(data => BinaryBuffer.concat(data.map(data => BinaryBuffer.wrap(data))).buffer);
         this.server.readFileStream(resource.toString(), opts, token).then(streamHandle => {
             if (token.isCancellationRequested) {

packages/filesystem/src/node/disk-file-system-provider.ts

@@ -20,7 +20,7 @@
 // based on https://github.com/microsoft/vscode/blob/04c36be045a94fee58e5f8992d3e3fd980294a84/src/vs/platform/files/node/diskFileSystemProvider.ts
 
 /* eslint-disable no-null/no-null */
-/* eslint-disable no-shadow */
+/* eslint-disable @typescript-eslint/no-shadow */
 
 import { injectable, inject, postConstruct } from 'inversify';
 import { basename, dirname, normalize, join } from 'path';

packages/plugin-ext/src/hosted/node/hosted-plugin-process.ts

@@ -95,7 +95,7 @@ export class HostedPluginProcess implements ServerPluginRunner {
         }
 
         this.terminatingPluginServer = true;
-        // eslint-disable-next-line no-shadow
+        // eslint-disable-next-line @typescript-eslint/no-shadow
         const cp = this.childProcess;
         this.childProcess = undefined;
 

packages/plugin-ext/src/plugin/file-system-event-service-ext-impl.ts

@@ -24,7 +24,7 @@
  */
 
 /* eslint-disable max-len */
-/* eslint-disable no-shadow */
+/* eslint-disable @typescript-eslint/no-shadow */
 /* eslint-disable @typescript-eslint/no-explicit-any */
 /* eslint-disable @typescript-eslint/tslint/config */
 

packages/plugin-ext/src/plugin/node/debug/debug.ts

@@ -189,7 +189,7 @@ export class DebugExtImpl implements DebugExt {
         providers.add(provider);
 
         return Disposable.create(() => {
-            // eslint-disable-next-line no-shadow
+            // eslint-disable-next-line @typescript-eslint/no-shadow
             const providers = this.configurationProviders.get(debugType);
             if (providers) {
                 providers.delete(provider);

packages/plugin-ext/src/plugin/types-impl.ts

@@ -739,7 +739,7 @@ export enum CompletionItemKind {
     Enum = 12,
     Keyword = 13,
     Snippet = 14,
-    Color = 15, // eslint-disable-line no-shadow
+    Color = 15, // eslint-disable-line @typescript-eslint/no-shadow
     File = 16,
     Reference = 17,
     Folder = 18,
@@ -2301,9 +2301,9 @@ export class SemanticTokensBuilder {
             let prevLine = 0;
             let prevChar = 0;
             for (let i = 0; i < tokenCount; i++) {
-                // eslint-disable-next-line no-shadow
+                // eslint-disable-next-line @typescript-eslint/no-shadow
                 let line = this._data[5 * i];
-                // eslint-disable-next-line no-shadow
+                // eslint-disable-next-line @typescript-eslint/no-shadow
                 let char = this._data[5 * i + 1];
 
                 if (line === 0) {