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99 lines
2.6 KiB
99 lines
2.6 KiB
/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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Author Tobias Koppers @sokra
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*/
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"use strict";
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const DescriptionFileUtils = require("./DescriptionFileUtils");
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/** @typedef {import("./Resolver")} Resolver */
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/** @typedef {import("./Resolver").ResolveRequest} ResolveRequest */
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/** @typedef {import("./Resolver").ResolveStepHook} ResolveStepHook */
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module.exports = class DescriptionFilePlugin {
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/**
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* @param {string | ResolveStepHook} source source
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* @param {string[]} filenames filenames
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* @param {boolean} pathIsFile pathIsFile
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* @param {string | ResolveStepHook} target target
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*/
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constructor(source, filenames, pathIsFile, target) {
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this.source = source;
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this.filenames = filenames;
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this.pathIsFile = pathIsFile;
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this.target = target;
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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(
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"DescriptionFilePlugin",
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(request, resolveContext, callback) => {
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const path = request.path;
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if (!path) return callback();
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const directory = this.pathIsFile
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? DescriptionFileUtils.cdUp(path)
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: path;
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if (!directory) return callback();
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DescriptionFileUtils.loadDescriptionFile(
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resolver,
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directory,
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this.filenames,
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request.descriptionFilePath
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? {
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path: request.descriptionFilePath,
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content: request.descriptionFileData,
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directory: /** @type {string} */ (request.descriptionFileRoot)
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}
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: undefined,
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resolveContext,
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(err, result) => {
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if (err) return callback(err);
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if (!result) {
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if (resolveContext.log)
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resolveContext.log(
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`No description file found in ${directory} or above`
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);
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return callback();
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}
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const relativePath =
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"." + path.slice(result.directory.length).replace(/\\/g, "/");
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/** @type {ResolveRequest} */
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const obj = {
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...request,
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descriptionFilePath: result.path,
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descriptionFileData: result.content,
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descriptionFileRoot: result.directory,
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relativePath: relativePath
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};
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resolver.doResolve(
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target,
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obj,
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"using description file: " +
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result.path +
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" (relative path: " +
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relativePath +
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")",
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resolveContext,
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(err, result) => {
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if (err) return callback(err);
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// Don't allow other processing
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if (result === undefined) return callback(null, null);
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callback(null, result);
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}
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);
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}
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);
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}
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);
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}
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};
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