MisskeyIO/packages/frontend/.eslintrc.js

module.exports = {
	root: true,
	env: {
		'node': false,
	},
	parser: 'vue-eslint-parser',
	parserOptions: {
		'parser': '@typescript-eslint/parser',
		tsconfigRootDir: __dirname,
		project: ['./tsconfig.json'],
		extraFileExtensions: ['.vue'],
	},
	extends: [
		'../shared/.eslintrc.js',
		'plugin:vue/vue3-recommended',
	],
	rules: {
		'@typescript-eslint/no-empty-interface': [
			'error',
			{
				'allowSingleExtends': true,
			},
		],
		'@typescript-eslint/prefer-nullish-coalescing': [
			'error',
		],
		// window の禁止理由: グローバルスコープと衝突し、予期せぬ結果を招くため
		// e の禁止理由: error や event など、複数のキーワードの頭文字であり分かりにくいため
		'id-denylist': ['error', 'window', 'e'],
		'no-shadow': ['warn'],
		'vue/attributes-order': ['error', {
			'alphabetical': false,
		}],
		'vue/no-use-v-if-with-v-for': ['error', {
			'allowUsingIterationVar': false,
		}],
		'vue/no-ref-as-operand': 'error',
		'vue/no-multi-spaces': ['error', {
			'ignoreProperties': false,
		}],
		'vue/no-v-html': 'warn',
		'vue/order-in-components': 'error',
		'vue/html-indent': ['warn', 'tab', {
			'attribute': 1,
			'baseIndent': 0,
			'closeBracket': 0,
			'alignAttributesVertically': true,
			'ignores': [],
		}],
		'vue/html-closing-bracket-spacing': ['warn', {
			'startTag': 'never',
			'endTag': 'never',
			'selfClosingTag': 'never',
		}],
		'vue/multi-word-component-names': 'warn',
		'vue/require-v-for-key': 'warn',
		'vue/no-unused-components': 'warn',
		'vue/valid-v-for': 'warn',
		'vue/return-in-computed-property': 'warn',
		'vue/no-setup-props-destructure': 'warn',
		'vue/max-attributes-per-line': 'off',
		'vue/html-self-closing': 'off',
		'vue/singleline-html-element-content-newline': 'off',
		// (vue/vue3-recommended disabled the autofix for Vue 2 compatibility)
		'vue/v-on-event-hyphenation': ['warn', 'always', { autofix: true }],
	},
	globals: {
		// Node.js
		'module': false,
		'require': false,
		'__dirname': false,

		// Vue
		'$$': false,
		'$ref': false,
		'$shallowRef': false,
		'$computed': false,

		// Misskey
		'_DEV_': false,
		'_LANGS_': false,
		'_VERSION_': false,
		'_ENV_': false,
		'_PERF_PREFIX_': false,
		'_DATA_TRANSFER_DRIVE_FILE_': false,
		'_DATA_TRANSFER_DRIVE_FOLDER_': false,
		'_DATA_TRANSFER_DECK_COLUMN_': false,
	},
};