109 lines
3.2 KiB
JavaScript
109 lines
3.2 KiB
JavaScript
/**
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* @author Toru Nagashima
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* See LICENSE file in root directory for full license.
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*/
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"use strict"
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const path = require("path")
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const { Minimatch } = require("minimatch")
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/** @typedef {import("../util/import-target")} ImportTarget */
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/**
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* @typedef {Object} DefinitionData
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* @property {string | string[]} name The name to disallow.
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* @property {string} [message] The custom message to show.
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*/
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/**
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* Check if matched or not.
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* @param {InstanceType<Minimatch>} matcher The matcher.
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* @param {boolean} absolute The flag that the matcher is for absolute paths.
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* @param {ImportTarget} importee The importee information.
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*/
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function match(matcher, absolute, { filePath, name }) {
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if (absolute) {
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return filePath != null && matcher.match(filePath)
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}
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return matcher.match(name)
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}
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/** Restriction. */
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class Restriction {
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/**
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* Initialize this restriction.
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* @param {DefinitionData} def The definition of a restriction.
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*/
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constructor({ name, message }) {
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const names = Array.isArray(name) ? name : [name]
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const matchers = names.map(raw => {
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const negate = raw[0] === "!" && raw[1] !== "("
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const pattern = negate ? raw.slice(1) : raw
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const absolute = path.isAbsolute(pattern)
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const matcher = new Minimatch(pattern, { dot: true })
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return { absolute, matcher, negate }
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})
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this.matchers = matchers
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this.message = message ? ` ${message}` : ""
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}
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/**
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* Check if a given importee is disallowed.
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* @param {ImportTarget} importee The importee to check.
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* @returns {boolean} `true` if the importee is disallowed.
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*/
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match(importee) {
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return this.matchers.reduce(
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(ret, { absolute, matcher, negate }) =>
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negate
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? ret && !match(matcher, absolute, importee)
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: ret || match(matcher, absolute, importee),
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false
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)
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}
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}
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/**
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* Create a restriction.
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* @param {string | DefinitionData} def A definition.
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* @returns {Restriction} Created restriction.
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*/
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function createRestriction(def) {
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if (typeof def === "string") {
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return new Restriction({ name: def })
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}
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return new Restriction(def)
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}
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/**
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* Create restrictions.
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* @param {(string | DefinitionData | GlobDefinition)[]} defs Definitions.
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* @returns {(Restriction | GlobRestriction)[]} Created restrictions.
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*/
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function createRestrictions(defs) {
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return (defs || []).map(createRestriction)
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}
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/**
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* Checks if given importees are disallowed or not.
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* @param {RuleContext} context - A context to report.
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* @param {ImportTarget[]} targets - A list of target information to check.
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* @returns {void}
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*/
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module.exports = function checkForRestriction(context, targets) {
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const restrictions = createRestrictions(context.options[0])
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for (const target of targets) {
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const restriction = restrictions.find(r => r.match(target))
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if (restriction) {
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context.report({
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node: target.node,
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messageId: "restricted",
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data: {
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name: target.name,
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customMessage: restriction.message,
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},
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})
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}
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}
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}
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