Update eslint from v6 to v7. Update typescript from v3 to v4. Fix cod…

…e cause of updating recomendations (fullExtends in eslintrc).

.eslintrc.js

@@ -5,6 +5,7 @@ const baseExtends = [
 
 const fullExtends = [
 	'eslint:recommended',
+	'plugin:markdown/recommended',
 	'plugin:@typescript-eslint/recommended',
 	'airbnb-typescript/base',
 	'./common.eslintrc.js',
@@ -14,7 +15,13 @@ const conf = {
 	env: {
 		es6: true,
 	},
+	// ignorePatterns: ['**/tsconfig.*.json'],
 	parser: '@typescript-eslint/parser',
+	parserOptions: {
+		createDefaultProgram: true,
+		extraFileExtensions: ['.json', '.md'],
+		project: 'tsconfig.lint.json',
+	},
 	plugins: [
 		'@typescript-eslint',
 		'import',
@@ -28,10 +35,16 @@ const conf = {
 		'import/parsers': { '@typescript-eslint/parser': ['.ts'] },
 		'import/resolver': {
 			'node': { 'extensions': ['.js', '.ts'] },
-			'typescript': { 'directory': './src' },
+			'typescript': { 'project': './src' },
 		},
 	},
 	overrides: [
+		{
+            // Enable the Markdown processor for all .md files.
+            // Still doesn't work https://github.com/eslint/eslint-plugin-markdown/issues/114#issuecomment-620970670
+            files: ['**/*.md'],
+            processor:'markdown/markdown'
+        },
 		{
 			files: ['**/*.json', '*.json'],
 			extends: [...fullExtends, 'plugin:json/recommended-with-comments'],
@@ -90,13 +103,6 @@ const conf = {
 			],
 		},
 	],
-	// preparing for eslint-config-airbnb-typescript v7:
-	// https://github.com/iamturns/eslint-config-airbnb-typescript/pull/63
-	// parserOptions: {
-	// project: './src/tsconfig.lint.json',
-	// extraFileExtensions: ['.json'],
-	// createDefaultProgram: true
-	// },
 };
 
 module.exports = conf;

common.eslintrc.js

@@ -1,6 +1,7 @@
 const conf = {
 	rules: {
 		// 'curly': ['error', 'all', 'consistent'],
+		'comma-dangle': ['error', 'always-multiline'],
 		'import/no-extraneous-dependencies': [
 			'error', {
 				'devDependencies': [
@@ -18,19 +19,27 @@ const conf = {
 		'no-console': 'off',
 		'no-trailing-spaces': 'error',
 		'no-tabs': ['warn', { 'allowIndentationTabs': true }],
+		'quotes': ['error', 'single'],
+		'@typescript-eslint/ban-types': ['error', {
+			'types': { 'Function': false },
+			'extendDefaults': true
+		}],
 		'@typescript-eslint/brace-style': ['error', 'stroustrup'],
-		'@typescript-eslint/indent': [
-			'error',
-			'tab', // airbnb set 2 spaces
-			{
-				SwitchCase: 1, // Only this from airbnb redefines default
-				// Other Airbnb setting same as default, JSX no matter
-			},
-		],
+		'@typescript-eslint/indent': ['error', 'tab', {
+			SwitchCase: 1, // Only this from airbnb redefines default
+			// Other Airbnb setting same as default, JSX no matter
+		}],
 		'@typescript-eslint/no-unused-vars': ['warn'],
 		// Old school interface class naming
-		'@typescript-eslint/interface-name-prefix': ['error', 'always'],
-		'@typescript-eslint/ban-ts-ignore': 'off',
+		'@typescript-eslint/naming-convention': ['error', {
+			'selector': 'interface',
+			'format': ['PascalCase'],
+			'custom': {
+				'regex': '^I[A-Z]',
+				'match': true
+			}
+		}],
+		'@typescript-eslint/ban-ts-comment': 'off',
 	},
 };
 

gulpfile.esm.js

@@ -64,14 +64,14 @@ task('copyEsmAssets',
 		const vueClass = src([
 			path.resolve('node_modules', 'vue-class-component', 'dist', 'vue-class-component.esm.js'),
 		])
-			.pipe(gReplace('process.env.NODE_ENV', "JSON.stringify('production')"))
+			.pipe(gReplace('process.env.NODE_ENV', 'JSON.stringify(\'production\')'))
 			.pipe(dest(absDest));
 
 		// TODO: only if not exists on dest folder
 		const vueProp = src([
 			path.resolve('node_modules', 'vue-property-decorator', 'lib', 'vue-property-decorator.js'),
 		])
-			.pipe(gReplace("/// <reference types='reflect-metadata'/>", ""))
+			.pipe(gReplace('/// <reference types=\'reflect-metadata\'/>', ''))
 			.pipe(gRename({ extname: '.esm.js' }))
 			.pipe(dest(absDest));