Tools: Add eslint rule "@typescript-eslint/no-inferrable-types"

.eslintrc.js

@@ -159,6 +159,7 @@ module.exports = {
 				// make everything public which is not great. New code however should specify member accessibility.
 				'@typescript-eslint/explicit-member-accessibility': ['warn'],
 				'@typescript-eslint/type-annotation-spacing': ['error', { 'before': false, 'after': true }],
+				'@typescript-eslint/no-inferrable-types': ['error', { 'ignoreParameters': true, 'ignoreProperties': true }],
 				'@typescript-eslint/comma-dangle': ['error', {
 					'arrays': 'always-multiline',
 					'objects': 'always-multiline',

packages/app-desktop/gui/ConfigScreen/controls/plugins/PluginsStates.tsx

@@ -20,7 +20,7 @@ const { space } = require('styled-system');
 
 const logger = Logger.create('PluginState');
 
-const maxWidth: number = 320;
+const maxWidth = 320;
 
 const Root = styled.div`
 	display: flex;

packages/app-desktop/gui/NoteEditor/NoteBody/TinyMCE/TinyMCE.tsx

@@ -102,7 +102,7 @@ interface LastOnChangeEventInfo {
 let loadedCssFiles_: string[] = [];
 let loadedJsFiles_: string[] = [];
 let dispatchDidUpdateIID_: any = null;
-let changeId_: number = 1;
+let changeId_ = 1;
 
 const TinyMCE = (props: NoteBodyEditorProps, ref: any) => {
 	const [editor, setEditor] = useState(null);

packages/lib/services/ReportService.ts

@@ -178,7 +178,7 @@ export default class ReportService {
 
 			for (let i = 0; i < disabledItems.length; i++) {
 				const row = disabledItems[i];
-				let msg: string = '';
+				let msg = '';
 				if (row.location === BaseItem.SYNC_ITEM_LOCATION_LOCAL) {
 					msg = _('%s (%s) could not be uploaded: %s', row.item.title, row.item.id, row.syncInfo.sync_disabled_reason);
 				} else {

packages/lib/services/WhenClause.ts

@@ -15,7 +15,7 @@ interface AdvancedExpression {
 
 function parseAdvancedExpression(advancedExpression: string): AdvancedExpression {
 	let subExpressionIndex = -1;
-	let subExpressions: string = '';
+	let subExpressions = '';
 	let currentSubExpressionKey = '';
 	const subContext: any = {};
 

packages/lib/services/commands/MenuUtils.ts

@@ -100,7 +100,7 @@ export default class MenuUtils {
 	}
 
 	public commandsToMenuItems(commandNames: string[], onClick: Function, locale: string): MenuItems {
-		const key: string = `${this.keymapService.lastSaveTime}_${commandNames.join('_')}_${locale}`;
+		const key = `${this.keymapService.lastSaveTime}_${commandNames.join('_')}_${locale}`;
 		if (this.menuItemCache_[key]) return this.menuItemCache_[key];
 
 		const output: MenuItems = {};

packages/lib/services/debug/populateDatabase.ts

@@ -61,7 +61,7 @@ export default async function populateDatabase(db: any, options: Options = null)
 	const createdTagIds: string[] = [];
 	const createdFolderDepths: Record<string, number> = {};
 	const folderDepthToId: Record<number, string[]> = {};
-	let rootFolderCount: number = 0;
+	let rootFolderCount = 0;
 
 	for (let i = 0; i < options.folderCount; i++) {
 		const folder: any = {
@@ -72,7 +72,7 @@ export default async function populateDatabase(db: any, options: Options = null)
 
 		if (options.rootFolderCount && rootFolderCount >= options.rootFolderCount) isRoot = false;
 
-		let depth: number = 0;
+		let depth = 0;
 
 		if (!isRoot) {
 			let possibleFolderIds: string[] = [];

packages/lib/services/interop/InteropService_Importer_Md.ts

@@ -110,7 +110,7 @@ export default class InteropService_Importer_Md extends InteropService_Importer_
 			if (stat && !isDir) {
 				const supportedFileExtension = this.metadata().fileExtensions;
 				const resolvedPath = shim.fsDriver().resolve(pathWithExtension);
-				let id: string = '';
+				let id = '';
 				// If the link looks like a note, then import it
 				if (supportedFileExtension.indexOf(fileExtension(trimmedLink).toLowerCase()) >= 0) {
 					// If the note hasn't been imported yet, do so now

packages/lib/services/share/ShareService.test.ts

@@ -188,7 +188,7 @@ describe('ShareService', function() {
 		const recipientPpk = await generateKeyPair(encryptionService(), '222222');
 		expect(ppk.id).not.toBe(recipientPpk.id);
 
-		let uploadedEmail: string = '';
+		let uploadedEmail = '';
 		let uploadedMasterKey: MasterKeyEntity = null;
 
 		const service = testShareFolderService({

packages/lib/services/synchronizer/synchronizer_MigrationHandler.test.ts

@@ -141,7 +141,7 @@ async function testMigrationE2EE(migrationVersion: number, maxSyncVersion: numbe
 	await expectNotThrow(async () => await checkTestData(testData));
 }
 
-let previousSyncTargetName: string = '';
+let previousSyncTargetName = '';
 
 describe('MigrationHandler', function() {
 

packages/plugin-repo-cli/index.ts

@@ -271,7 +271,7 @@ async function commandVersion() {
 }
 
 async function main() {
-	const scriptName: string = 'plugin-repo-cli';
+	const scriptName = 'plugin-repo-cli';
 
 	const commands: Record<string, Function> = {
 		build: commandBuild,
@@ -279,8 +279,8 @@ async function main() {
 		updateRelease: commandUpdateRelease,
 	};
 
-	let selectedCommand: string = '';
+	let selectedCommand = '';
-	let selectedCommandArgs: string = '';
+	let selectedCommandArgs = '';
 
 	function setSelectedCommand(name: string, args: any) {
 		selectedCommand = name;

packages/renderer/MdToHtml/rules/katex.ts

@@ -291,7 +291,7 @@ export default {
 		// set KaTeX as the renderer for markdown-it-simplemath
 		const katexInline = function(latex: string) {
 			katexOptions.displayMode = false;
-			let outputHtml: string = '';
+			let outputHtml = '';
 			try {
 				outputHtml = renderToStringWithCache(latex, katexOptions);
 			} catch (error) {
@@ -306,7 +306,7 @@ export default {
 
 		const katexBlock = function(latex: string) {
 			katexOptions.displayMode = true;
-			let outputHtml: string = '';
+			let outputHtml = '';
 			try {
 				outputHtml = renderToStringWithCache(latex, katexOptions);
 			} catch (error) {

packages/server/src/config.ts

@@ -11,7 +11,7 @@ interface PackageJson {
 
 const packageJson: PackageJson = require(`${__dirname}/packageInfo.js`);
 
-let runningInDocker_: boolean = false;
+let runningInDocker_ = false;
 
 export function runningInDocker(): boolean {
 	return runningInDocker_;

packages/server/src/models/items/storage/loadStorageDriver.ts

@@ -22,7 +22,7 @@ export default async function(config: StorageDriverConfig | number, db: DbConnec
 		...options,
 	};
 
-	let storageId: number = 0;
+	let storageId = 0;
 
 	if (typeof config === 'number') {
 		storageId = config;

packages/server/src/routes/index/password.ts

@@ -24,7 +24,7 @@ interface ResetPasswordFields {
 
 const subRoutes: Record<string, RouteHandler> = {
 	forgot: async (_path: SubPath, ctx: AppContext) => {
-		let confirmationMessage: string = '';
+		let confirmationMessage = '';
 
 		if (ctx.method === 'POST') {
 			const fields = await bodyFields<ForgotPasswordFields>(ctx.req);
@@ -46,7 +46,7 @@ const subRoutes: Record<string, RouteHandler> = {
 	},
 
 	reset: async (_path: SubPath, ctx: AppContext) => {
-		let successMessage: string = '';
+		let successMessage = '';
 		let error: Error = null;
 		const token = ctx.query.token as string;
 

packages/server/src/services/UserDeletionService.ts

@@ -105,7 +105,7 @@ export default class UserDeletionService extends BaseService {
 		}
 
 		let error: any = null;
-		let success: boolean = true;
+		let success = true;
 
 		try {
 			await this.models.userDeletion().start(deletion.id);

packages/server/src/tools/generateTypes.ts

@@ -2,7 +2,7 @@ import sqlts from '@rmp135/sql-ts';
 
 require('source-map-support').install();
 
-const dbFilePath: string = `${__dirname}/../../src/services/database/types.ts`;
+const dbFilePath = `${__dirname}/../../src/services/database/types.ts`;
 
 const fileReplaceWithinMarker = '// AUTO-GENERATED-TYPES';
 
@@ -74,7 +74,7 @@ function insertContentIntoFile(filePath: string, markerOpen: string, markerClose
 	if (!fs.existsSync(filePath)) throw new Error(`File not found: ${filePath}`);
 	let content: string = fs.readFileSync(filePath, 'utf-8');
 	// [^]* matches any character including new lines
-	const regex: RegExp = new RegExp(`${markerOpen}[^]*?${markerClose}`);
+	const regex = new RegExp(`${markerOpen}[^]*?${markerClose}`);
 	if (!content.match(regex)) throw new Error(`Could not find markers: ${markerOpen}`);
 	content = content.replace(regex, `${markerOpen}\n${contentToInsert}\n${markerClose}`);
 	fs.writeFileSync(filePath, content);

packages/tools/website/utils/frontMatter.ts

@@ -18,7 +18,7 @@ const readProp = (line: string): string[] => {
 export const stripOffFrontMatter = (md: string): MarkdownAndFrontMatter => {
 	if (md.indexOf('---') !== 0) return { doc: md };
 
-	let state: string = 'start';
+	let state = 'start';
 	const lines = md.split('\n');
 	const docLines: string[] = [];