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const fs = require('fs');
const globals = require('globals');
const htmlParser = require('@html-eslint/parser');
const htmlPlugin = require('@html-eslint/eslint-plugin');
const pluginJs = require('@eslint/js');
const pluginReference = require('eslint-plugin-html');
const stylistic = require('@stylistic/eslint-plugin');
if (process && process.env && process.env.npm_command && !fs.existsSync('./platform/web/eslint.config.cjs')) {
throw Error('eslint must be run from the Godot project root folder');
}
const emscriptenGlobals = {
'Browser': true,
'ERRNO_CODES': true,
'FS': true,
'GL': true,
'HEAP32': true,
'HEAP8': true,
'HEAPF32': true,
'HEAPU8': true,
'IDBFS': true,
'LibraryManager': true,
'Module': true,
'UTF8ToString': true,
'_emscripten_webgl_get_current_context': true,
'_free': true,
'_malloc': true,
'autoAddDeps': true,
'getValue': true,
'lengthBytesUTF8': true,
'mergeInto': true,
'runtimeKeepalivePop': true,
'runtimeKeepalivePush': true,
'setValue': true,
'stringToUTF8': true,
'stringToUTF8Array': true,
'wasmTable': true,
};
module.exports = [
pluginJs.configs.all,
stylistic.configs.customize({ jsx: false }),
{
rules: {
'consistent-this': ['error', 'me'], // enforce consistent naming when capturing the current execution context
'curly': ['error', 'all'], // enforce consistent brace style for all control statements
'no-else-return': ['error', { 'allowElseIf': true }], // disallow else blocks after return statements in if statements
'no-param-reassign': ['error', { 'props': false }], // disallow reassigning function parameters
'no-unused-vars': ['error', { 'args': 'none', 'caughtErrors': 'none' }], // disallow unused variables
'@stylistic/arrow-parens': ['error', 'always'], // enforces the consistent use of parentheses in arrow functions
'@stylistic/brace-style': ['error', '1tbs', { 'allowSingleLine': false }], // describes the placement of braces relative to their control statement and body
'@stylistic/comma-dangle': ['error', {
'arrays': 'always-multiline',
'objects': 'always-multiline',
'imports': 'always-multiline',
'exports': 'always-multiline',
'functions': 'never',
}], // enforces consistent use of trailing commas in object and array literals
'@stylistic/indent': ['error', 'tab', { 'SwitchCase': 0 }], // enforces a consistent indentation style
'@stylistic/indent-binary-ops': ['error', 'tab'], // indentation for binary operators in multiline expressions
'@stylistic/multiline-ternary': ['error', 'always-multiline'], // enforces or disallows newlines between operands of a ternary expression
'@stylistic/no-tabs': ['error', { 'allowIndentationTabs': true }], // looks for tabs anywhere inside a file: code, comments or anything else
'@stylistic/quote-props': ['error', 'consistent'], // requires quotes around object literal property names
'@stylistic/quotes': ['error', 'single'], // enforces the consistent use of either backticks, double, or single quotes
'@stylistic/semi': ['error', 'always'], // enforces consistent use of semicolons
'@stylistic/spaced-comment': ['error', 'always', { 'block': { 'exceptions': ['*'] } }], // enforce consistency of spacing after the start of a comment
'camelcase': 'off', // disable: camelcase naming convention
'capitalized-comments': 'off', // disable: enforce or disallow capitalization of the first letter of a comment
'complexity': 'off', // disable: enforce a maximum cyclomatic complexity allowed in a program
'dot-notation': 'off', // disable: enforce dot notation whenever possible
'eqeqeq': 'off', // disable: require the use of === and !==
'func-name-matching': 'off', // disable: require function names to match the name of the variable or property to which they are assigned
'func-names': 'off', // disable: checking named function expressions
'func-style': 'off', // disable: consistent use of either function declarations or expressions
'id-length': 'off', // disable: enforce minimum and maximum identifier lengths
'init-declarations': 'off', // disable: require or disallow initialization in variable declarations
'line-comment-position': 'off', // disable: enforce position of line comments
'max-classes-per-file': 'off', // disable: maximum number of classes per file
'max-lines': 'off', // disable: maximum number of lines per file
'max-lines-per-function': 'off', // disable: maximum number of lines of code in a function
'max-params': 'off', // disable: enforce a maximum number of parameters in function definitions
'max-statements': 'off', // disable: maximum number of statements allowed in function blocks
'multiline-comment-style': 'off', // disable: enforce a particular style for multiline comments
'new-cap': 'off', // disable: require constructor names to begin with a capital letter
'no-bitwise': 'off', // disable: disallow bitwise operators
'no-continue': 'off', // disable: disallow continue statements
'no-empty-function': 'off', // disable: disallow empty functions
'no-eq-null': 'off', // disable: disallow null comparisons without type-checking operators
'no-implicit-coercion': 'off', // disable: disallow shorthand type conversions
'no-inline-comments': 'off', // disable: disallow inline comments after code
'no-magic-numbers': 'off', // disable: disallow magic numbers
'no-negated-condition': 'off', // disable: disallow negated conditions
'no-plusplus': 'off', // disable: disallow the unary operators ++ and --
'no-self-assign': 'off', // disable: disallow assignments where both sides are exactly the same
'no-ternary': 'off', // disable: disallow ternary operators
'no-undefined': 'off', // disable: disallow the use of undefined as an identifier
'no-underscore-dangle': 'off', // disable: disallow dangling underscores in identifiers
'no-useless-assignment': 'off', // disable: disallow variable assignments when the value is not used
'no-warning-comments': 'off', // disable: disallow specified warning terms in comments
'object-shorthand': 'off', // disable: require or disallow method and property shorthand syntax for object literals
'one-var': 'off', // disable: enforce variables to be declared either together or separately in functions
'prefer-arrow-callback': 'off', // disable: require using arrow functions for callbacks
'prefer-destructuring': 'off', // disable: require destructuring from arrays and/or objects
'prefer-named-capture-group': 'off', // disable: enforce using named capture group in regular expression
'prefer-promise-reject-errors': 'off', // disable: require using Error objects as Promise rejection reasons
'prefer-rest-params': 'off', // disable: require rest parameters instead of arguments
'prefer-spread': 'off', // disable: require spread operators instead of .apply()
'require-unicode-regexp': 'off', // disable: enforce the use of u or v flag on RegExp
'sort-keys': 'off', // disable: require object keys to be sorted
},
},
// jsdoc2rst (node)
{
files: ['js/jsdoc2rst/**/*.js', 'platform/web/js/jsdoc2rst/**/*.js'],
languageOptions: {
globals: globals.node,
},
},
// engine files (browser)
{
files: ['js/engine/**/*.js', 'platform/web/js/engine/**/*.js'],
languageOptions: {
globals: {
...globals.browser,
'Features': true,
'Godot': true,
'Redot': true,
'InternalConfig': true,
'Preloader': true,
},
},
},
// libraries and modules (browser)
{
files: ['js/libs/**/*.js', 'platform/web/js/libs/**/*.js', 'modules/**/*.js'],
languageOptions: {
globals: {
...globals.browser,
...emscriptenGlobals,
'GodotConfig': true,
'GodotEventListeners': true,
'GodotFS': true,
'GodotOS': true,
'GodotAudio': true,
'GodotRuntime': true,
'IDHandler': true,
'XRWebGLLayer': true,
},
},
},
// javascript templates (service workers)
{
files: ['misc/dist/html/**/*.js'],
languageOptions: {
globals: {
...globals.browser,
'___GODOT_CACHE___': true,
'___GODOT_ENSURE_CROSSORIGIN_ISOLATION_HEADERS___': true,
'___GODOT_OPT_CACHE___': true,
},
},
},
// html templates
{
files: ['misc/dist/html/**/*.html'],
plugins: {
'@html-eslint': htmlPlugin,
'eslint-plugin-html': pluginReference,
},
languageOptions: {
parser: htmlParser,
globals: {
...globals.browser,
'Engine': true,
'$GODOT_CONFIG': true,
'$GODOT_PROJECT_NAME': true,
'$GODOT_THREADS_ENABLED': true,
'___GODOT_THREADS_ENABLED___': true,
},
},
rules: {
...htmlPlugin.configs.recommended.rules,
'@html-eslint/indent': ['error', 'tab'],
'@html-eslint/require-closing-tags': ['error', { 'selfClosing': 'never' }],
'no-alert': 'off',
'no-console': 'off',
},
},
{
ignores: [
'**/eslint.config.cjs',
'**/.eslintrc*.js',
'**/*.externs.js',
],
},
];
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