--- /dev/null
+var isCore = require('is-core-module');
+var fs = require('fs');
+var path = require('path');
+var caller = require('./caller');
+var nodeModulesPaths = require('./node-modules-paths');
+var normalizeOptions = require('./normalize-options');
+
+var realpathFS = fs.realpathSync && typeof fs.realpathSync.native === 'function' ? fs.realpathSync.native : fs.realpathSync;
+
+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();
+};
+
+var defaultRealpathSync = function realpathSync(x) {
+ try {
+ return realpathFS(x);
+ } catch (realpathErr) {
+ if (realpathErr.code !== 'ENOENT') {
+ throw realpathErr;
+ }
+ }
+ return x;
+};
+
+var maybeRealpathSync = function maybeRealpathSync(realpathSync, x, opts) {
+ if (opts && opts.preserveSymlinks === false) {
+ return realpathSync(x);
+ }
+ return x;
+};
+
+var defaultReadPackageSync = function defaultReadPackageSync(readFileSync, pkgfile) {
+ var body = readFileSync(pkgfile);
+ try {
+ var pkg = JSON.parse(body);
+ return pkg;
+ } catch (jsonErr) {}
+};
+
+var getPackageCandidates = function getPackageCandidates(x, start, opts) {
+ var dirs = nodeModulesPaths(start, opts, x);
+ for (var i = 0; i < dirs.length; i++) {
+ dirs[i] = path.join(dirs[i], x);
+ }
+ return dirs;
+};
+
+module.exports = function resolveSync(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 realpathSync = opts.realpathSync || defaultRealpathSync;
+ var readPackageSync = opts.readPackageSync || defaultReadPackageSync;
+ if (opts.readFileSync && opts.readPackageSync) {
+ throw new TypeError('`readFileSync` and `readPackageSync` are mutually exclusive.');
+ }
+ var packageIterator = opts.packageIterator;
+
+ var extensions = opts.extensions || ['.js'];
+ var includeCoreModules = opts.includeCoreModules !== false;
+ 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 = maybeRealpathSync(realpathSync, path.resolve(basedir), opts);
+
+ if ((/^(?:\.\.?(?:\/|$)|\/|([A-Za-z]:)?[/\\])/).test(x)) {
+ var res = path.resolve(absoluteStart, x);
+ if (x === '.' || x === '..' || x.slice(-1) === '/') res += '/';
+ var m = loadAsFileSync(res) || loadAsDirectorySync(res);
+ if (m) return maybeRealpathSync(realpathSync, m, opts);
+ } else if (includeCoreModules && isCore(x)) {
+ return x;
+ } else {
+ var n = loadNodeModulesSync(x, absoluteStart);
+ if (n) return maybeRealpathSync(realpathSync, n, opts);
+ }
+
+ var err = new Error("Cannot find module '" + x + "' from '" + parent + "'");
+ err.code = 'MODULE_NOT_FOUND';
+ throw err;
+
+ function loadAsFileSync(x) {
+ var pkg = loadpkg(path.dirname(x));
+
+ if (pkg && pkg.dir && pkg.pkg && opts.pathFilter) {
+ var rfile = path.relative(pkg.dir, x);
+ var r = opts.pathFilter(pkg.pkg, x, rfile);
+ if (r) {
+ x = path.resolve(pkg.dir, r); // eslint-disable-line no-param-reassign
+ }
+ }
+
+ if (isFile(x)) {
+ return x;
+ }
+
+ for (var i = 0; i < extensions.length; i++) {
+ var file = x + extensions[i];
+ if (isFile(file)) {
+ return file;
+ }
+ }
+ }
+
+ function loadpkg(dir) {
+ if (dir === '' || dir === '/') return;
+ if (process.platform === 'win32' && (/^\w:[/\\]*$/).test(dir)) {
+ return;
+ }
+ if ((/[/\\]node_modules[/\\]*$/).test(dir)) return;
+
+ var pkgfile = path.join(maybeRealpathSync(realpathSync, dir, opts), 'package.json');
+
+ if (!isFile(pkgfile)) {
+ return loadpkg(path.dirname(dir));
+ }
+
+ var pkg = readPackageSync(readFileSync, pkgfile);
+
+ if (pkg && opts.packageFilter) {
+ // v2 will pass pkgfile
+ pkg = opts.packageFilter(pkg, /*pkgfile,*/ dir); // eslint-disable-line spaced-comment
+ }
+
+ return { pkg: pkg, dir: dir };
+ }
+
+ function loadAsDirectorySync(x) {
+ var pkgfile = path.join(maybeRealpathSync(realpathSync, x, opts), '/package.json');
+ if (isFile(pkgfile)) {
+ try {
+ var pkg = readPackageSync(readFileSync, pkgfile);
+ } catch (e) {}
+
+ if (pkg && opts.packageFilter) {
+ // v2 will pass pkgfile
+ pkg = opts.packageFilter(pkg, /*pkgfile,*/ x); // eslint-disable-line spaced-comment
+ }
+
+ if (pkg && pkg.main) {
+ if (typeof pkg.main !== 'string') {
+ var mainError = new TypeError('package “' + pkg.name + '” `main` must be a string');
+ mainError.code = 'INVALID_PACKAGE_MAIN';
+ throw mainError;
+ }
+ if (pkg.main === '.' || pkg.main === './') {
+ pkg.main = 'index';
+ }
+ try {
+ var m = loadAsFileSync(path.resolve(x, pkg.main));
+ if (m) return m;
+ var n = loadAsDirectorySync(path.resolve(x, pkg.main));
+ if (n) return n;
+ } catch (e) {}
+ }
+ }
+
+ return loadAsFileSync(path.join(x, '/index'));
+ }
+
+ function loadNodeModulesSync(x, start) {
+ var thunk = function () { return getPackageCandidates(x, start, opts); };
+ var dirs = packageIterator ? packageIterator(x, start, thunk, opts) : thunk();
+
+ for (var i = 0; i < dirs.length; i++) {
+ var dir = dirs[i];
+ if (isDirectory(path.dirname(dir))) {
+ var m = loadAsFileSync(dir);
+ if (m) return m;
+ var n = loadAsDirectorySync(dir);
+ if (n) return n;
+ }
+ }
+ }
+};
projects / dotfiles / .git / blobdiff