@pipepack/enhanced-resolver/lib/observable/as.js

yet, reimplement enhanced-resolve with the idea 'simple is best'.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.asFile = asFile;
exports.asModule = asModule;
exports.asDirectory = asDirectory;

var _path = require("path");

var _rxjs = require("rxjs");

var _operators = require("rxjs/operators");

var _is = require("./is");

var _descriptionFile = require("./description-file");

var _assign = require("../utils/assign");

// package
// internal

/**
 * consider request as file, just pass through, for convenience
 */
function asFile(request) {
  return (0, _rxjs.of)(request);
}
/**
 * condier request as standalone module, which means search by description file
 */


function asModule(request, options) {
  const {
    fs,
    descriptionFiles,
    mainFields
  } = options;
  return (0, _rxjs.of)(request).pipe((0, _operators.concatMap)(() => (0, _descriptionFile.pickDescriptionFile)(request, fs, descriptionFiles)), (0, _operators.concatMap)(descriptions => (0, _descriptionFile.pickMainField)(request, descriptions, mainFields)));
}
/**
 * consider request as directory, spread indexes
 */


function asDirectory(request, options) {
  const {
    fs,
    mainFiles
  } = options;
  return (0, _is.isDirectoryRequest)(request, fs).pipe((0, _operators.concatMap)(() => (0, _rxjs.from)(mainFiles).pipe((0, _operators.map)(mainFile => (0, _assign.assign)(request, {
    referencePathName: (0, _path.join)(request.referencePathName, mainFile)
  })))));
}
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