Acme.BookStore.HttpApi.Host/node_modules/resolve/lib/sync.js

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var core = require('./core');
var fs = require('fs');
var path = require('path');
var caller = require('./caller.js');
var nodeModulesPaths = require('./node-modules-paths.js');
var normalizeOptions = require('./normalize-options.js');

var defaultIsFile = function isFile(file) {
    try {
        var stat = fs.statSync(file);
    } catch (e) {
        if (e && (e.code === 'ENOENT' || e.code === 'ENOTDIR')) return false;
        throw e;
    }
    return stat.isFile() || stat.isFIFO();
};

var defaultIsDir = function isDirectory(dir) {
    try {
        var stat = fs.statSync(dir);
    } catch (e) {
        if (e && (e.code === 'ENOENT' || e.code === 'ENOTDIR')) return false;
        throw e;
    }
    return stat.isDirectory();
};

module.exports = function (x, options) {
    if (typeof x !== 'string') {
        throw new TypeError('Path must be a string.');
    }
    var opts = normalizeOptions(x, options);

    var isFile = opts.isFile || defaultIsFile;
    var readFileSync = opts.readFileSync || fs.readFileSync;
    var isDirectory = opts.isDirectory || defaultIsDir;

    var extensions = opts.extensions || ['.js'];
    var basedir = opts.basedir || path.dirname(caller());
    var parent = opts.filename || basedir;

    opts.paths = opts.paths || [];

    // ensure that `basedir` is an absolute path at this point, resolving against the process' current working directory
    var absoluteStart = path.resolve(basedir);

    if (opts.preserveSymlinks === false) {
        try {
            absoluteStart = fs.realpathSync(absoluteStart);
        } catch (realPathErr) {
            if (realPathErr.code !== 'ENOENT') {
                throw realPathErr;
            }
        }
    }

    if ((/^(?:\.\.?(?:\/|$)|\/|([A-Za-z]:)?[/\\])/).test(x)) {
        var res = path.resolve(absoluteStart, x);
        if (x === '..' || x.slice(-1) === '/') res += '/';
        var m = loadAsFileSync(res) || loadAsDirectorySync(res);