/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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Author Ivan Kopeykin @vankop
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*/
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"use strict";
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/** @typedef {import("./Resolver")} Resolver */
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/** @typedef {import("./Resolver").ResolveStepHook} ResolveStepHook */
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class RootPlugin {
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/**
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* @param {string | ResolveStepHook} source source hook
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* @param {Array<string>} root roots
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* @param {string | ResolveStepHook} target target hook
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* @param {boolean=} ignoreErrors ignore error during resolving of root paths
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*/
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constructor(source, root, target, ignoreErrors) {
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this.root = root;
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this.source = source;
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this.target = target;
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this._ignoreErrors = ignoreErrors;
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}
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/**
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* @param {Resolver} resolver the resolver
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* @returns {void}
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*/
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apply(resolver) {
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const target = resolver.ensureHook(this.target);
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resolver
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.getHook(this.source)
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.tapAsync("RootPlugin", (request, resolveContext, callback) => {
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const req = request.request;
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if (!req) return callback();
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if (!req.startsWith("/")) return callback();
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const path = resolver.join(this.root, req.slice(1));
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const obj = Object.assign(request, {
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path,
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relativePath: request.relativePath && path
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});
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resolver.doResolve(
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target,
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obj,
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`root path ${this.root}`,
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resolveContext,
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this._ignoreErrors
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? (err, result) => {
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if (err) {
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if (resolveContext.log) {
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resolveContext.log(
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`Ignored fatal error while resolving root path:\n${err}`
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);
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}
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return callback();
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}
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if (result) return callback(null, result);
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callback();
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}
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: callback
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);
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});
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}
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}
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module.exports = RootPlugin;
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