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/**
* @fileoverview Shared functions to work with configs.
* @author Nicholas C. Zakas
*/
"use strict";
//-----------------------------------------------------------------------------
// Functions
//-----------------------------------------------------------------------------
/**
* Parses a ruleId into its plugin and rule parts.
* @param {string} ruleId The rule ID to parse.
* @returns {{pluginName:string,ruleName:string}} The plugin and rule
* parts of the ruleId;
*/
function parseRuleId(ruleId) {
let pluginName, ruleName;
// distinguish between core rules and plugin rules
if (ruleId.includes("/")) {
pluginName = ruleId.slice(0, ruleId.lastIndexOf("/"));
ruleName = ruleId.slice(pluginName.length + 1);
} else {
pluginName = "@";
ruleName = ruleId;
}
return {
pluginName,
ruleName
};
}
/**
* Retrieves a rule instance from a given config based on the ruleId.
* @param {string} ruleId The rule ID to look for.
* @param {FlatConfig} config The config to search.
* @returns {import("../shared/types").Rule|undefined} The rule if found
* or undefined if not.
*/
function getRuleFromConfig(ruleId, config) {
const { pluginName, ruleName } = parseRuleId(ruleId);
const plugin = config.plugins && config.plugins[pluginName];
let rule = plugin && plugin.rules && plugin.rules[ruleName];
// normalize function rules into objects
if (rule && typeof rule === "function") {
rule = {
create: rule
};
}
return rule;
}
//-----------------------------------------------------------------------------
// Exports
//-----------------------------------------------------------------------------
module.exports = {
parseRuleId,
getRuleFromConfig
};