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/**
* @fileoverview Options configuration for optionator.
* @author George Zahariev
*/
"use strict";
//------------------------------------------------------------------------------
// Requirements
//------------------------------------------------------------------------------
const optionator = require("optionator");
//------------------------------------------------------------------------------
// Typedefs
//------------------------------------------------------------------------------
/**
* The options object parsed by Optionator.
* @typedef {Object} ParsedCLIOptions
* @property {boolean} cache Only check changed files
* @property {string} cacheFile Path to the cache file. Deprecated: use --cache-location
* @property {string} [cacheLocation] Path to the cache file or directory
* @property {"metadata" | "content"} cacheStrategy Strategy to use for detecting changed files in the cache
* @property {boolean} [color] Force enabling/disabling of color
* @property {number | "auto" | "off"} [concurrency] Number of linting threads, "auto" to choose automatically, "off" for no multithreading
* @property {string} [config] Use this configuration, overriding .eslintrc.* config options if present
* @property {boolean} debug Output debugging information
* @property {string[]} [env] Specify environments
* @property {boolean} envInfo Output execution environment information
* @property {boolean} errorOnUnmatchedPattern Prevent errors when pattern is unmatched
* @property {boolean} eslintrc Disable use of configuration from .eslintrc.*
* @property {string[]} [ext] Specify JavaScript file extensions
* @property {string[]} [flag] Feature flags
* @property {boolean} fix Automatically fix problems
* @property {boolean} fixDryRun Automatically fix problems without saving the changes to the file system
* @property {("directive" | "problem" | "suggestion" | "layout")[]} [fixType] Specify the types of fixes to apply (directive, problem, suggestion, layout)
* @property {string} format Use a specific output format
* @property {string[]} [global] Define global variables
* @property {boolean} [help] Show help
* @property {boolean} ignore Disable use of ignore files and patterns
* @property {string} [ignorePath] Specify path of ignore file
* @property {string[]} [ignorePattern] Patterns of files to ignore. In eslintrc mode, these are in addition to `.eslintignore`
* @property {boolean} init Run config initialization wizard
* @property {boolean} inlineConfig Prevent comments from changing config or rules
* @property {number} maxWarnings Number of warnings to trigger nonzero exit code
* @property {string} [outputFile] Specify file to write report to
* @property {string} [parser] Specify the parser to be used
* @property {Object} [parserOptions] Specify parser options
* @property {boolean} [passOnNoPatterns=false] When set to true, missing patterns cause
* the linting operation to short circuit and not report any failures.
* @property {boolean} [passOnUnprunedSuppressions] Ignore unused suppressions
* @property {string[]} [plugin] Specify plugins
* @property {string} [printConfig] Print the configuration for the given file
* @property {boolean} [pruneSuppressions] Prune unused suppressions
* @property {boolean} quiet Report errors only
* @property {boolean | undefined} reportUnusedDisableDirectives Adds reported errors for unused eslint-disable and eslint-enable directives
* @property {string | undefined} reportUnusedDisableDirectivesSeverity A severity string indicating if and how unused disable and enable directives should be tracked and reported.
* @property {string} [resolvePluginsRelativeTo] A folder where plugins should be resolved from, CWD by default
* @property {Object} [rule] Specify rules
* @property {string[]} [rulesdir] Load additional rules from this directory. Deprecated: Use rules from plugins
* @property {boolean} [stats] Report additional statistics
* @property {boolean} stdin Lint code provided on <STDIN>
* @property {string} [stdinFilename] Specify filename to process STDIN as
* @property {boolean} [suppressAll] Suppress all error violations
* @property {string} [suppressionsLocation] Path to the suppressions file or directory
* @property {string[]} [suppressRule] Suppress specific rules
* @property {boolean} [version] Output the version number
* @property {boolean} warnIgnored Show warnings when the file list includes ignored files
* @property {string[]} _ Positional filenames or patterns
*/
//------------------------------------------------------------------------------
// Initialization and Public Interface
//------------------------------------------------------------------------------
// exports "parse(args)", "generateHelp()", and "generateHelpForOption(optionName)"
/**
* Creates the CLI options for ESLint.
* @param {boolean} usingFlatConfig Indicates if flat config is being used.
* @returns {Object} The optionator instance.
*/
module.exports = function (usingFlatConfig) {
let lookupFlag;
if (usingFlatConfig) {
lookupFlag = {
option: "config-lookup",
type: "Boolean",
default: "true",
description: "Disable look up for eslint.config.js",
};
} else {
lookupFlag = {
option: "eslintrc",
type: "Boolean",
default: "true",
description: "Disable use of configuration from .eslintrc.*",
};
}
let envFlag;
if (!usingFlatConfig) {
envFlag = {
option: "env",
type: "[String]",
description: "Specify environments",
};
}
let inspectConfigFlag;
if (usingFlatConfig) {
inspectConfigFlag = {
option: "inspect-config",
type: "Boolean",
description:
"Open the config inspector with the current configuration",
};
}
let extFlag;
if (!usingFlatConfig) {
extFlag = {
option: "ext",
type: "[String]",
description: "Specify JavaScript file extensions",
};
} else {
extFlag = {
option: "ext",
type: "[String]",
description: "Specify additional file extensions to lint",
};
}
let resolvePluginsFlag;
if (!usingFlatConfig) {
resolvePluginsFlag = {
option: "resolve-plugins-relative-to",
type: "path::String",
description:
"A folder where plugins should be resolved from, CWD by default",
};
}
let rulesDirFlag;
if (!usingFlatConfig) {
rulesDirFlag = {
option: "rulesdir",
type: "[path::String]",
description:
"Load additional rules from this directory. Deprecated: Use rules from plugins",
};
}
let ignorePathFlag;
if (!usingFlatConfig) {
ignorePathFlag = {
option: "ignore-path",
type: "path::String",
description: "Specify path of ignore file",
};
}
let statsFlag;
if (usingFlatConfig) {
statsFlag = {
option: "stats",
type: "Boolean",
default: "false",
description: "Add statistics to the lint report",
};
}
let warnIgnoredFlag;
if (usingFlatConfig) {
warnIgnoredFlag = {
option: "warn-ignored",
type: "Boolean",
default: "true",
description:
"Suppress warnings when the file list includes ignored files",
};
}
let flagFlag;
if (usingFlatConfig) {
flagFlag = {
option: "flag",
type: "[String]",
description: "Enable a feature flag",
};
}
let reportUnusedInlineConfigsFlag;
if (usingFlatConfig) {
reportUnusedInlineConfigsFlag = {
option: "report-unused-inline-configs",
type: "String",
default: void 0,
description:
"Adds reported errors for unused eslint inline config comments",
enum: ["off", "warn", "error", "0", "1", "2"],
};
}
let mcpFlag;
if (usingFlatConfig) {
mcpFlag = {
option: "mcp",
type: "Boolean",
description: "Start the ESLint MCP server",
};
}
let concurrencyFlag;
if (usingFlatConfig) {
concurrencyFlag = {
option: "concurrency",
type: "Int|String",
default: "off",
description:
"Number of linting threads, auto to choose automatically, off for no multithreading",
};
}
return optionator({
prepend: "eslint [options] file.js [file.js] [dir]",
defaults: {
concatRepeatedArrays: true,
mergeRepeatedObjects: true,
},
options: [
{
heading: "Basic configuration",
},
lookupFlag,
{
option: "config",
alias: "c",
type: "path::String",
description: usingFlatConfig
? "Use this configuration instead of eslint.config.js, eslint.config.mjs, or eslint.config.cjs"
: "Use this configuration, overriding .eslintrc.* config options if present",
},
inspectConfigFlag,
envFlag,
extFlag,
{
option: "global",
type: "[String]",
description: "Define global variables",
},
{
option: "parser",
type: "String",
description: "Specify the parser to be used",
},
{
option: "parser-options",
type: "Object",
description: "Specify parser options",
},
resolvePluginsFlag,
{
heading: "Specify Rules and Plugins",
},
{
option: "plugin",
type: "[String]",
description: "Specify plugins",
},
{
option: "rule",
type: "Object",
description: "Specify rules",
},
rulesDirFlag,
{
heading: "Fix Problems",
},
{
option: "fix",
type: "Boolean",
default: false,
description: "Automatically fix problems",
},
{
option: "fix-dry-run",
type: "Boolean",
default: false,
description:
"Automatically fix problems without saving the changes to the file system",
},
{
option: "fix-type",
type: "Array",
description:
"Specify the types of fixes to apply (directive, problem, suggestion, layout)",
},
{
heading: "Ignore Files",
},
ignorePathFlag,
{
option: "ignore",
type: "Boolean",
default: "true",
description: "Disable use of ignore files and patterns",
},
{
option: "ignore-pattern",
type: "[String]",
description: `Patterns of files to ignore${usingFlatConfig ? "" : " (in addition to those in .eslintignore)"}`,
concatRepeatedArrays: [
true,
{
oneValuePerFlag: true,
},
],
},
{
heading: "Use stdin",
},
{
option: "stdin",
type: "Boolean",
default: "false",
description: "Lint code provided on <STDIN>",
},
{
option: "stdin-filename",
type: "String",
description: "Specify filename to process STDIN as",
},
{
heading: "Handle Warnings",
},
{
option: "quiet",
type: "Boolean",
default: "false",
description: "Report errors only",
},
{
option: "max-warnings",
type: "Int",
default: "-1",
description: "Number of warnings to trigger nonzero exit code",
},
{
heading: "Output",
},
{
option: "output-file",
alias: "o",
type: "path::String",
description: "Specify file to write report to",
},
{
option: "format",
alias: "f",
type: "String",
default: "stylish",
description: "Use a specific output format",
},
{
option: "color",
type: "Boolean",
alias: "no-color",
description: "Force enabling/disabling of color",
},
{
heading: "Inline configuration comments",
},
{
option: "inline-config",
type: "Boolean",
default: "true",
description: "Prevent comments from changing config or rules",
},
{
option: "report-unused-disable-directives",
type: "Boolean",
default: void 0,
description:
"Adds reported errors for unused eslint-disable and eslint-enable directives",
},
{
option: "report-unused-disable-directives-severity",
type: "String",
default: void 0,
description:
"Chooses severity level for reporting unused eslint-disable and eslint-enable directives",
enum: ["off", "warn", "error", "0", "1", "2"],
},
reportUnusedInlineConfigsFlag,
{
heading: "Caching",
},
{
option: "cache",
type: "Boolean",
default: "false",
description: "Only check changed files",
},
{
option: "cache-file",
type: "path::String",
default: ".eslintcache",
description:
"Path to the cache file. Deprecated: use --cache-location",
},
{
option: "cache-location",
type: "path::String",
description: "Path to the cache file or directory",
},
{
option: "cache-strategy",
dependsOn: ["cache"],
type: "String",
default: "metadata",
enum: ["metadata", "content"],
description:
"Strategy to use for detecting changed files in the cache",
},
{
heading: "Suppressing Violations",
},
{
option: "suppress-all",
type: "Boolean",
default: "false",
description: "Suppress all violations",
},
{
option: "suppress-rule",
type: "[String]",
description: "Suppress specific rules",
},
{
option: "suppressions-location",
type: "path::String",
description: "Specify the location of the suppressions file",
},
{
option: "prune-suppressions",
type: "Boolean",
default: "false",
description: "Prune unused suppressions",
},
{
option: "pass-on-unpruned-suppressions",
type: "Boolean",
default: "false",
description: "Ignore unused suppressions",
},
{
heading: "Miscellaneous",
},
{
option: "init",
type: "Boolean",
default: "false",
description: "Run config initialization wizard",
},
{
option: "env-info",
type: "Boolean",
default: "false",
description: "Output execution environment information",
},
{
option: "error-on-unmatched-pattern",
type: "Boolean",
default: "true",
description: "Prevent errors when pattern is unmatched",
},
{
option: "exit-on-fatal-error",
type: "Boolean",
default: "false",
description: "Exit with exit code 2 in case of fatal error",
},
warnIgnoredFlag,
{
option: "pass-on-no-patterns",
type: "Boolean",
default: false,
description:
"Exit with exit code 0 in case no file patterns are passed",
},
{
option: "debug",
type: "Boolean",
default: false,
description: "Output debugging information",
},
{
option: "help",
alias: "h",
type: "Boolean",
description: "Show help",
},
{
option: "version",
alias: "v",
type: "Boolean",
description: "Output the version number",
},
{
option: "print-config",
type: "path::String",
description: "Print the configuration for the given file",
},
statsFlag,
flagFlag,
mcpFlag,
concurrencyFlag,
].filter(value => !!value),
});
};