339 lines
11 KiB
JavaScript
339 lines
11 KiB
JavaScript
|
/*
|
||
|
|
* STOP!!! DO NOT MODIFY.
|
||
|
|
*
|
||
|
|
* This file is part of the ongoing work to move the eslintrc-style config
|
||
|
|
* system into the @eslint/eslintrc package. This file needs to remain
|
||
|
|
* unchanged in order for this work to proceed.
|
||
|
|
*
|
||
|
|
* If you think you need to change this file, please contact @nzakas first.
|
||
|
|
*
|
||
|
|
* Thanks in advance for your cooperation.
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @fileoverview Validates configs.
|
||
|
|
* @author Brandon Mills
|
||
|
|
*/
|
||
|
|
|
||
|
|
"use strict";
|
||
|
|
|
||
|
|
//------------------------------------------------------------------------------
|
||
|
|
// Requirements
|
||
|
|
//------------------------------------------------------------------------------
|
||
|
|
|
||
|
|
const
|
||
|
|
util = require("util"),
|
||
|
|
configSchema = require("../../conf/config-schema"),
|
||
|
|
BuiltInEnvironments = require("@eslint/eslintrc/conf/environments"),
|
||
|
|
BuiltInRules = require("../rules"),
|
||
|
|
ConfigOps = require("@eslint/eslintrc/lib/shared/config-ops"),
|
||
|
|
{ emitDeprecationWarning } = require("./deprecation-warnings");
|
||
|
|
|
||
|
|
const ajv = require("./ajv")();
|
||
|
|
const ruleValidators = new WeakMap();
|
||
|
|
const noop = Function.prototype;
|
||
|
|
|
||
|
|
//------------------------------------------------------------------------------
|
||
|
|
// Private
|
||
|
|
//------------------------------------------------------------------------------
|
||
|
|
let validateSchema;
|
||
|
|
const severityMap = {
|
||
|
|
error: 2,
|
||
|
|
warn: 1,
|
||
|
|
off: 0
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Gets a complete options schema for a rule.
|
||
|
|
* @param {{create: Function, schema: (Array|null)}} rule A new-style rule object
|
||
|
|
* @returns {Object} JSON Schema for the rule's options.
|
||
|
|
*/
|
||
|
|
function getRuleOptionsSchema(rule) {
|
||
|
|
if (!rule) {
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
|
||
|
|
const schema = rule.schema || rule.meta && rule.meta.schema;
|
||
|
|
|
||
|
|
// Given a tuple of schemas, insert warning level at the beginning
|
||
|
|
if (Array.isArray(schema)) {
|
||
|
|
if (schema.length) {
|
||
|
|
return {
|
||
|
|
type: "array",
|
||
|
|
items: schema,
|
||
|
|
minItems: 0,
|
||
|
|
maxItems: schema.length
|
||
|
|
};
|
||
|
|
}
|
||
|
|
return {
|
||
|
|
type: "array",
|
||
|
|
minItems: 0,
|
||
|
|
maxItems: 0
|
||
|
|
};
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
// Given a full schema, leave it alone
|
||
|
|
return schema || null;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Validates a rule's severity and returns the severity value. Throws an error if the severity is invalid.
|
||
|
|
* @param {options} options The given options for the rule.
|
||
|
|
* @returns {number|string} The rule's severity value
|
||
|
|
*/
|
||
|
|
function validateRuleSeverity(options) {
|
||
|
|
const severity = Array.isArray(options) ? options[0] : options;
|
||
|
|
const normSeverity = typeof severity === "string" ? severityMap[severity.toLowerCase()] : severity;
|
||
|
|
|
||
|
|
if (normSeverity === 0 || normSeverity === 1 || normSeverity === 2) {
|
||
|
|
return normSeverity;
|
||
|
|
}
|
||
|
|
|
||
|
|
throw new Error(`\tSeverity should be one of the following: 0 = off, 1 = warn, 2 = error (you passed '${util.inspect(severity).replace(/'/gu, "\"").replace(/\n/gu, "")}').\n`);
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Validates the non-severity options passed to a rule, based on its schema.
|
||
|
|
* @param {{create: Function}} rule The rule to validate
|
||
|
|
* @param {Array} localOptions The options for the rule, excluding severity
|
||
|
|
* @returns {void}
|
||
|
|
*/
|
||
|
|
function validateRuleSchema(rule, localOptions) {
|
||
|
|
if (!ruleValidators.has(rule)) {
|
||
|
|
const schema = getRuleOptionsSchema(rule);
|
||
|
|
|
||
|
|
if (schema) {
|
||
|
|
ruleValidators.set(rule, ajv.compile(schema));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
const validateRule = ruleValidators.get(rule);
|
||
|
|
|
||
|
|
if (validateRule) {
|
||
|
|
validateRule(localOptions);
|
||
|
|
if (validateRule.errors) {
|
||
|
|
throw new Error(validateRule.errors.map(
|
||
|
|
error => `\tValue ${JSON.stringify(error.data)} ${error.message}.\n`
|
||
|
|
).join(""));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Validates a rule's options against its schema.
|
||
|
|
* @param {{create: Function}|null} rule The rule that the config is being validated for
|
||
|
|
* @param {string} ruleId The rule's unique name.
|
||
|
|
* @param {Array|number} options The given options for the rule.
|
||
|
|
* @param {string|null} source The name of the configuration source to report in any errors. If null or undefined,
|
||
|
|
* no source is prepended to the message.
|
||
|
|
* @returns {void}
|
||
|
|
*/
|
||
|
|
function validateRuleOptions(rule, ruleId, options, source = null) {
|
||
|
|
try {
|
||
|
|
const severity = validateRuleSeverity(options);
|
||
|
|
|
||
|
|
if (severity !== 0) {
|
||
|
|
validateRuleSchema(rule, Array.isArray(options) ? options.slice(1) : []);
|
||
|
|
}
|
||
|
|
} catch (err) {
|
||
|
|
const enhancedMessage = `Configuration for rule "${ruleId}" is invalid:\n${err.message}`;
|
||
|
|
|
||
|
|
if (typeof source === "string") {
|
||
|
|
throw new Error(`${source}:\n\t${enhancedMessage}`);
|
||
|
|
} else {
|
||
|
|
throw new Error(enhancedMessage);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Validates an environment object
|
||
|
|
* @param {Object} environment The environment config object to validate.
|
||
|
|
* @param {string} source The name of the configuration source to report in any errors.
|
||
|
|
* @param {function(envId:string): Object} [getAdditionalEnv] A map from strings to loaded environments.
|
||
|
|
* @returns {void}
|
||
|
|
*/
|
||
|
|
function validateEnvironment(
|
||
|
|
environment,
|
||
|
|
source,
|
||
|
|
getAdditionalEnv = noop
|
||
|
|
) {
|
||
|
|
|
||
|
|
// not having an environment is ok
|
||
|
|
if (!environment) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
Object.keys(environment).forEach(id => {
|
||
|
|
const env = getAdditionalEnv(id) || BuiltInEnvironments.get(id) || null;
|
||
|
|
|
||
|
|
if (!env) {
|
||
|
|
const message = `${source}:\n\tEnvironment key "${id}" is unknown\n`;
|
||
|
|
|
||
|
|
throw new Error(message);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Validates a rules config object
|
||
|
|
* @param {Object} rulesConfig The rules config object to validate.
|
||
|
|
* @param {string} source The name of the configuration source to report in any errors.
|
||
|
|
* @param {function(ruleId:string): Object} getAdditionalRule A map from strings to loaded rules
|
||
|
|
* @returns {void}
|
||
|
|
*/
|
||
|
|
function validateRules(
|
||
|
|
rulesConfig,
|
||
|
|
source,
|
||
|
|
getAdditionalRule = noop
|
||
|
|
) {
|
||
|
|
if (!rulesConfig) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
Object.keys(rulesConfig).forEach(id => {
|
||
|
|
const rule = getAdditionalRule(id) || BuiltInRules.get(id) || null;
|
||
|
|
|
||
|
|
validateRuleOptions(rule, id, rulesConfig[id], source);
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Validates a `globals` section of a config file
|
||
|
|
* @param {Object} globalsConfig The `globals` section
|
||
|
|
* @param {string|null} source The name of the configuration source to report in the event of an error.
|
||
|
|
* @returns {void}
|
||
|
|
*/
|
||
|
|
function validateGlobals(globalsConfig, source = null) {
|
||
|
|
if (!globalsConfig) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
Object.entries(globalsConfig)
|
||
|
|
.forEach(([configuredGlobal, configuredValue]) => {
|
||
|
|
try {
|
||
|
|
ConfigOps.normalizeConfigGlobal(configuredValue);
|
||
|
|
} catch (err) {
|
||
|
|
throw new Error(`ESLint configuration of global '${configuredGlobal}' in ${source} is invalid:\n${err.message}`);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Validate `processor` configuration.
|
||
|
|
* @param {string|undefined} processorName The processor name.
|
||
|
|
* @param {string} source The name of config file.
|
||
|
|
* @param {function(id:string): Processor} getProcessor The getter of defined processors.
|
||
|
|
* @returns {void}
|
||
|
|
*/
|
||
|
|
function validateProcessor(processorName, source, getProcessor) {
|
||
|
|
if (processorName && !getProcessor(processorName)) {
|
||
|
|
throw new Error(`ESLint configuration of processor in '${source}' is invalid: '${processorName}' was not found.`);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Formats an array of schema validation errors.
|
||
|
|
* @param {Array} errors An array of error messages to format.
|
||
|
|
* @returns {string} Formatted error message
|
||
|
|
*/
|
||
|
|
function formatErrors(errors) {
|
||
|
|
return errors.map(error => {
|
||
|
|
if (error.keyword === "additionalProperties") {
|
||
|
|
const formattedPropertyPath = error.dataPath.length ? `${error.dataPath.slice(1)}.${error.params.additionalProperty}` : error.params.additionalProperty;
|
||
|
|
|
||
|
|
return `Unexpected top-level property "${formattedPropertyPath}"`;
|
||
|
|
}
|
||
|
|
if (error.keyword === "type") {
|
||
|
|
const formattedField = error.dataPath.slice(1);
|
||
|
|
const formattedExpectedType = Array.isArray(error.schema) ? error.schema.join("/") : error.schema;
|
||
|
|
const formattedValue = JSON.stringify(error.data);
|
||
|
|
|
||
|
|
return `Property "${formattedField}" is the wrong type (expected ${formattedExpectedType} but got \`${formattedValue}\`)`;
|
||
|
|
}
|
||
|
|
|
||
|
|
const field = error.dataPath[0] === "." ? error.dataPath.slice(1) : error.dataPath;
|
||
|
|
|
||
|
|
return `"${field}" ${error.message}. Value: ${JSON.stringify(error.data)}`;
|
||
|
|
}).map(message => `\t- ${message}.\n`).join("");
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Validates the top level properties of the config object.
|
||
|
|
* @param {Object} config The config object to validate.
|
||
|
|
* @param {string} source The name of the configuration source to report in any errors.
|
||
|
|
* @returns {void}
|
||
|
|
*/
|
||
|
|
function validateConfigSchema(config, source = null) {
|
||
|
|
validateSchema = validateSchema || ajv.compile(configSchema);
|
||
|
|
|
||
|
|
if (!validateSchema(config)) {
|
||
|
|
throw new Error(`ESLint configuration in ${source} is invalid:\n${formatErrors(validateSchema.errors)}`);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (Object.hasOwnProperty.call(config, "ecmaFeatures")) {
|
||
|
|
emitDeprecationWarning(source, "ESLINT_LEGACY_ECMAFEATURES");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Validates an entire config object.
|
||
|
|
* @param {Object} config The config object to validate.
|
||
|
|
* @param {string} source The name of the configuration source to report in any errors.
|
||
|
|
* @param {function(ruleId:string): Object} [getAdditionalRule] A map from strings to loaded rules.
|
||
|
|
* @param {function(envId:string): Object} [getAdditionalEnv] A map from strings to loaded envs.
|
||
|
|
* @returns {void}
|
||
|
|
*/
|
||
|
|
function validate(config, source, getAdditionalRule, getAdditionalEnv) {
|
||
|
|
validateConfigSchema(config, source);
|
||
|
|
validateRules(config.rules, source, getAdditionalRule);
|
||
|
|
validateEnvironment(config.env, source, getAdditionalEnv);
|
||
|
|
validateGlobals(config.globals, source);
|
||
|
|
|
||
|
|
for (const override of config.overrides || []) {
|
||
|
|
validateRules(override.rules, source, getAdditionalRule);
|
||
|
|
validateEnvironment(override.env, source, getAdditionalEnv);
|
||
|
|
validateGlobals(config.globals, source);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
const validated = new WeakSet();
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Validate config array object.
|
||
|
|
* @param {ConfigArray} configArray The config array to validate.
|
||
|
|
* @returns {void}
|
||
|
|
*/
|
||
|
|
function validateConfigArray(configArray) {
|
||
|
|
const getPluginEnv = Map.prototype.get.bind(configArray.pluginEnvironments);
|
||
|
|
const getPluginProcessor = Map.prototype.get.bind(configArray.pluginProcessors);
|
||
|
|
const getPluginRule = Map.prototype.get.bind(configArray.pluginRules);
|
||
|
|
|
||
|
|
// Validate.
|
||
|
|
for (const element of configArray) {
|
||
|
|
if (validated.has(element)) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
validated.add(element);
|
||
|
|
|
||
|
|
validateEnvironment(element.env, element.name, getPluginEnv);
|
||
|
|
validateGlobals(element.globals, element.name);
|
||
|
|
validateProcessor(element.processor, element.name, getPluginProcessor);
|
||
|
|
validateRules(element.rules, element.name, getPluginRule);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
//------------------------------------------------------------------------------
|
||
|
|
// Public Interface
|
||
|
|
//------------------------------------------------------------------------------
|
||
|
|
|
||
|
|
module.exports = {
|
||
|
|
getRuleOptionsSchema,
|
||
|
|
validate,
|
||
|
|
validateConfigArray,
|
||
|
|
validateConfigSchema,
|
||
|
|
validateRuleOptions
|
||
|
|
};
|