/** * ESLint configuration for Vermine2047 FoundryVTT system * Compatible with FoundryVTT v11-v14 */ module.exports = { root: true, env: { browser: true, es2022: true, node: false }, extends: [ 'eslint:recommended', 'plugin:@typescript-eslint/recommended' ], parserOptions: { ecmaVersion: 2022, sourceType: 'module', ecmaFeatures: { impliedStrict: true } }, globals: { // FoundryVTT global objects game: 'readonly', ui: 'readonly', Hooks: 'readonly', CONFIG: 'readonly', Canvas: 'readonly', ChatMessage: 'readonly', Roll: 'readonly', Actor: 'readonly', Item: 'readonly', Dialog: 'readonly', foundry: 'readonly', Handlebars: 'readonly', renderTemplate: 'readonly' }, rules: { // Possible Problems 'no-console': 'error', 'no-constant-condition': 'error', 'no-control-regex': 'error', 'no-debugger': 'error', 'no-dupe-args': 'error', 'no-dupe-keys': 'error', 'no-duplicate-case': 'error', 'no-empty': 'warn', 'no-empty-character-class': 'error', 'no-ex-assign': 'error', 'no-extra-boolean-cast': 'error', 'no-fallthrough': 'error', 'no-func-assign': 'error', 'no-inner-html': 'off', // Foundry uses innerHTML extensively 'no-invalid-regexp': 'error', 'no-irregular-whitespace': 'error', 'no-misleading-character-class': 'error', 'no-new-symbol': 'error', 'no-obj-calls': 'error', 'no-octal': 'error', 'no-prototype-builtins': 'error', 'no-regex-spaces': 'error', 'no-self-assign': 'error', 'no-sparse-arrays': 'error', 'no-template-curly-in-string': 'warn', 'no-unexpected-multiline': 'error', 'no-unreachable': 'error', 'no-unsafe-finally': 'error', 'no-unsafe-negation': 'error', 'no-unsafe-optional-chaining': 'error', 'no-useless-backreference': 'error', 'require-atomic-updates': 'off', 'use-isnan': 'error', 'valid-typeof': 'error', // Suggestions 'accessor-pairs': 'warn', 'arrow-body-style': ['warn', 'as-needed'], 'block-scoped-var': 'error', 'camelcase': ['warn', { allow: ['^_', '^VERMINE_'] }], 'class-methods-use-this': 'off', // Many utility methods don't use this 'complexity': ['warn', 20], 'consistent-return': 'warn', 'consistent-this': 'warn', 'curly': ['warn', 'multi-line', 'consistent'], 'default-case': 'warn', 'default-case-last': 'warn', 'default-param-last': 'warn', 'dot-locale-compare': 'warn', 'dot-notation': ['warn', { allowKeywords: true }], 'eqeqeq': ['error', 'always', { null: 'ignore' }], 'func-name-matching': 'warn', 'func-names': ['warn', 'as-needed'], 'func-style': ['warn', 'declaration', { allowArrowFunctions: true }], 'grouped-accessor-pairs': 'warn', 'guard-for-in': 'warn', 'id-blacklist': 'off', 'id-length': 'off', 'id-match': 'off', 'init-declarations': ['warn', 'always'], 'line-comment-position': 'off', 'lines-between-class-members': ['warn', 'always', { exceptAfterSingleLine: true }], 'logical-assignment-operators': ['warn', 'always'], 'max-classes-per-file': ['warn', 1], 'max-depth': ['warn', 5], 'max-lines': ['warn', { max: 500, skipBlankLines: true, skipComments: true }], 'max-lines-per-function': ['warn', { max: 100, skipBlankLines: true, skipComments: true, IIFEs: true }], 'max-nested-callbacks': ['warn', 3], 'max-params': ['warn', 5], 'max-statements': ['warn', 30], 'multiline-comment-style': 'off', 'new-cap': ['warn', { newIsCap: true, capIsNew: false }], 'no-alert': 'warn', 'no-array-constructor': 'error', 'no-bitwise': 'warn', 'no-caller': 'error', 'no-case-declarations': 'error', 'no-class-assign': 'error', 'no-cond-assign': ['error', 'always'], 'no-confusing-arrow': ['warn', { allowParens: true }], 'no-const-assign': 'error', 'no-continue': 'off', 'no-delete-var': 'error', 'no-div-regex': 'warn', 'no-else-return': ['warn', { allowElseIf: true }], 'no-empty-destructuring': 'warn', 'no-empty-function': ['warn', { allow: ['constructors'] }], 'no-empty-pattern': 'warn', 'no-eq-null': 'off', 'no-eval': 'error', 'no-extend-native': 'error', 'no-extra-bind': 'warn', 'no-extra-label': 'warn', 'no-floating-decimal': 'warn', 'no-global-assign': 'error', 'no-implicit-coercion': ['warn', { allow: ['!!', '+'] }], 'no-implicit-globals': 'error', 'no-implied-eval': 'error', 'no-inline-comments': 'off', 'no-invalid-this': 'off', 'no-iterator': 'warn', 'no-label-var': 'error', 'no-labels': ['warn', { allowLoop: true, allowSwitch: true }], 'no-lone-blocks': 'warn', 'no-lonely-if': 'warn', 'no-loop-func': 'warn', 'no-magic-numbers': ['warn', { ignore: [0, 1, 2], ignoreEnums: true, ignoreNumericLiteralTypes: true, ignoreArrayIndexes: true }], 'no-multi-assign': 'warn', 'no-multi-str': 'warn', 'no-negated-condition': 'warn', 'no-nested-ternary': 'warn', 'no-new': 'warn', 'no-new-func': 'warn', 'no-new-wrappers': 'error', 'no-nonoctal-decimal-escape': 'error', 'no-object-multi-space': 'warn', 'no-octal-escape': 'error', 'no-param-reassign': ['warn', { props: false }], 'no-plusplus': 'off', 'no-promise-executor-return': 'error', 'no-proto': 'error', 'no-redeclare': 'error', 'no-regex-spaces': 'error', 'no-restricted-globals': 'off', 'no-restricted-imports': 'off', 'no-restricted-modules': 'off', 'no-restricted-properties': 'off', 'no-restricted-syntax': 'off', 'no-return-assign': ['error', 'always'], 'no-return-await': 'error', 'no-script-url': 'warn', 'no-sequences': 'error', 'no-setter-return': 'error', 'no-shadow': 'warn', 'no-shadow-restricted-names': 'error', 'no-sparse-arrays': 'error', 'no-tabs': 'warn', 'no-template-curly-in-string': 'warn', 'no-ternary': 'off', 'no-this-before-super': 'error', 'no-throw-literal': 'warn', 'no-undef': ['error', { typeof: true }], 'no-undef-init': 'warn', 'no-undefined': 'off', 'no-underscore-dangle': ['warn', { allow: ['_id', '_on', '_source', '_total', '_html'] }], 'no-unneeded-ternary': ['warn', { defaultAssignment: false }], 'no-unreachable-loop': 'warn', 'no-unsafe-finally': 'error', 'no-unsafe-negation': 'error', 'no-unused-expressions': ['warn', { allowShortCircuit: true, allowTernary: true, enforceForJSX: false }], 'no-unused-labels': 'warn', 'no-unused-private-class-members': 'warn', 'no-unused-vars': ['warn', { args: 'none', caughtErrors: 'none', ignoreRestSiblings: true }], 'no-use-before-define': ['warn', { functions: false, classes: false, variables: true }], 'no-useless-call': 'warn', 'no-useless-catch': 'warn', 'no-useless-computed-key': ['warn', { enforceForClassMembers: false }], 'no-useless-concat': 'warn', 'no-useless-constructor': 'warn', 'no-useless-escape': 'warn', 'no-useless-rename': 'warn', 'no-useless-return': 'warn', 'no-var': 'error', 'no-void': ['warn', { allowAsStatement: true }], 'no-warning-comments': 'warn', 'no-with': 'error', 'object-shorthand': ['warn', 'always', { ignoreConstructors: false, avoidQuotes: true }], 'one-var': ['warn', 'never'], 'one-var-declaration-per-line': ['warn', 'initializations'], 'operator-assignment': ['warn', 'always'], 'prefer-arrow-callback': ['warn', { classPropertiesAllowed: true, disallowTLSClassFields: true }], 'prefer-const': ['error', { destructuring: 'all', ignoreReadBeforeAssign: false }], 'prefer-destructuring': ['warn', { array: false, object: true }], 'prefer-exponentiation-operator': 'warn', 'prefer-named-capture-group': 'off', 'prefer-numeric-literals': 'warn', 'prefer-object-has-own': 'warn', 'prefer-object-spread': 'warn', 'prefer-promise-reject-errors': ['error', { allowEmptyReject: false }], 'prefer-regex-literals': ['warn', { disallowRedundantWrapping: true }], 'prefer-rest-params': 'warn', 'prefer-spread': 'warn', 'prefer-template': 'warn', 'quote-props': ['warn', 'as-needed', { keywords: true, unnecessaryQuote: false, numbers: true }], 'radix': ['error', 'always'], 'require-await': 'warn', 'require-unicode-regexp': 'off', 'require-yield': 'error', 'sort-imports': 'off', 'sort-keys': 'off', 'sort-vars': 'off', 'spaced-comment': ['warn', 'always', { line: { markers: ['!', '/'] }, block: { balanced: true, markers: ['!', '*'], exceptions: ['*'] } }], 'strict': ['error', 'never'], 'symbol-description': 'warn', 'unicode-bom': ['error', 'never'], 'vars-on-top': 'off', 'yoda': ['warn', 'never', { exceptRange: true }], // Layout & Formatting 'array-bracket-newline': ['warn', 'consistent'], 'array-bracket-spacing': ['warn', 'never'], 'array-element-newline': ['warn', 'consistent'], 'arrow-parens': ['warn', 'always'], 'arrow-spacing': ['warn', { before: true, after: true }], 'block-spacing': ['warn', 'always'], 'brace-style': ['warn', '1tbs', { allowSingleLine: true }], 'comma-dangle': ['warn', { arrays: 'always-multiline', objects: 'always-multiline', imports: 'always-multiline', exports: 'always-multiline', functions: 'always-multiline' }], 'comma-spacing': ['warn', { before: false, after: true }], 'comma-style': ['warn', 'last', { exceptions: { VariableDeclarator: true, ArrayExpression: true, ObjectExpression: true } }], 'computed-property-spacing': ['warn', 'never', { enforceForClassMembers: true }], 'dot-notation': ['warn', { allowKeywords: true }], 'eol-last': ['warn', 'always'], 'func-call-spacing': ['warn', 'never'], 'func-style': ['warn', 'declaration', { allowArrowFunctions: true }], 'function-call-argument-newline': ['warn', 'consistent'], 'function-paren-newline': ['warn', 'consistent'], 'generator-star-spacing': ['warn', { before: false, after: true }], 'implicit-arrow-linebreak': ['warn', 'beside'], 'indent': ['warn', 2, { SwitchCase: 1, VariableDeclarator: { var: 2, let: 2, const: 3 }, outerIIFEBody: 1, MemberExpression: 'off', FunctionDeclaration: { body: 1, parameters: 1, parameters: { var: 2, let: 2, const: 3 } }, FunctionExpression: { body: 1, parameters: 1, parameters: { var: 2, let: 2, const: 3 } }, StaticBlock: { body: 1 }, ClassBody: 1 }], 'jsx-quotes': 'off', 'key-spacing': ['warn', { beforeColon: false, afterColon: true, mode: 'strict' }], 'keyword-spacing': ['warn', { before: true, after: true, overrides: { return: { after: true }, throw: { after: true }, case: { after: true } } }], 'line-comment-position': 'off', 'linebreak-style': ['warn', 'unix'], 'lines-around-comment': 'off', 'lines-between-class-members': ['warn', 'always', { exceptAfterSingleLine: true }], 'max-len': ['warn', { code: 120, tabWidth: 2, comments: 120, ignoreComments: false, ignoreTrailingComments: true, ignoreUrls: true, ignoreStrings: true, ignoreTemplateLiterals: true, ignoreRegExpLiterals: true }], 'max-statements-per-line': ['warn', { max: 1 }], 'multiline-comment-style': 'off', 'multiline-ternary': ['warn', 'always-multiline'], 'new-parens': 'warn', 'newline-per-chained-call': ['warn', { ignoreChainWithDepth: 3 }], 'no-extra-parens': ['warn', 'all', { conditionalAssign: false, returnAssign: false, nestedBinaryExpressions: false, ignoreJSX: 'all', enforceForArrowConditionals: false, enforceForSequenceExpressions: false, enforceForNewInMemberExpressions: false }], 'no-extra-semi': 'warn', 'no-floating-decimal': 'warn', 'no-mixed-operators': ['warn', { groups: [['+', '-', '*', '/', '%', '**'], ['&', '|', '^', '~', '<<', '>>', '>>>'], ['==', '!=', '===', '!==', '>', '>=', '<', '<='], ['&&', '||'], ['in', 'instanceof']], allowSamePrecedence: false }], 'no-mixed-spaces-and-tabs': 'warn', 'no-multi-spaces': ['warn', { ignoreEOLComments: false, exceptions: { Property: true, BinaryExpression: false, VariableDeclarator: true, ImportDeclaration: true } }], 'no-multiple-empty-lines': ['warn', { max: 1, maxEOF: 0, maxBOF: 0 }], 'no-tabs': 'warn', 'no-trailing-spaces': ['warn', { skipBlankLines: false, ignoreComments: false }], 'no-whitespace-before-property': 'warn', 'nonblock-statement-body-position': ['warn', 'beside', { overrides: { if: 'beside', while: 'beside', do: 'beside', for: 'beside' } }], 'object-curly-newline': ['warn', { multiline: true, consistent: true }], 'object-curly-spacing': ['warn', 'always'], 'object-property-newline': ['warn', { allowAllPropertiesOnSameLine: true }], 'operator-linebreak': ['warn', 'after', { overrides: { '?': 'before', ':': 'before', '||': 'after', '&&': 'after', '|>': 'after' } }], 'padded-blocks': ['warn', 'never'], 'padding-line-between-statements': 'off', 'prefer-exponentiation-operator': 'warn', 'quote-props': ['warn', 'as-needed', { keywords: true, unnecessaryQuote: false, numbers: true }], 'quotes': ['warn', 'single', { avoidEscape: true, allowTemplateLiterals: true }], 'rest-spread-spacing': ['warn', 'never'], 'semi': ['warn', 'always'], 'semi-spacing': ['warn', { before: false, after: true }], 'semi-style': ['warn', 'last'], 'space-before-blocks': ['warn', 'always'], 'space-before-function-paren': ['warn', { anonymous: 'always', named: 'never', asyncArrow: 'always' }], 'space-in-parens': ['warn', 'never'], 'space-infix-ops': 'warn', 'space-unary-ops': ['warn', { words: true, nonwords: false, overrides: {} }], 'switch-colon-spacing': ['warn', { after: true, before: false }], 'template-curly-spacing': 'warn', 'template-tag-spacing': ['warn', 'never'], 'unicode-bom': ['error', 'never'], 'wrap-iife': ['warn', 'outside', { functionPrototypeMethods: true }], 'wrap-regex': 'warn', 'yield-star-spacing': ['warn', { before: false, after: true }] }, overrides: [ { files: ['*.hbs', '*.handlebars'], rules: { // Handlebars templates don't need linting 'no-undef': 'off' } }, { files: ['**/tests/**', '**/*.test.js', '**/*.spec.js'], env: { jest: true, mocha: true } } ], ignorePatterns: [ 'node_modules/', 'dist/', 'build/', '*.min.js', '*.min.css' ] };