var isCore = require('is-core-module');
|
var fs = require('fs');
|
var path = require('path');
|
var getHomedir = require('./homedir');
|
var caller = require('./caller');
|
var nodeModulesPaths = require('./node-modules-paths');
|
var normalizeOptions = require('./normalize-options');
|
|
var realpathFS = process.platform !== 'win32' && fs.realpathSync && typeof fs.realpathSync.native === 'function' ? fs.realpathSync.native : fs.realpathSync;
|
|
var homedir = getHomedir();
|
var defaultPaths = function () {
|
return [
|
path.join(homedir, '.node_modules'),
|
path.join(homedir, '.node_libraries')
|
];
|
};
|
|
var defaultIsFile = function isFile(file) {
|
try {
|
var stat = fs.statSync(file, { throwIfNoEntry: false });
|
} catch (e) {
|
if (e && (e.code === 'ENOENT' || e.code === 'ENOTDIR')) return false;
|
throw e;
|
}
|
return !!stat && (stat.isFile() || stat.isFIFO());
|
};
|
|
var defaultIsDir = function isDirectory(dir) {
|
try {
|
var stat = fs.statSync(dir, { throwIfNoEntry: false });
|
} catch (e) {
|
if (e && (e.code === 'ENOENT' || e.code === 'ENOTDIR')) return false;
|
throw e;
|
}
|
return !!stat && 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 || defaultPaths();
|
|
// 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;
|
}
|
}
|
}
|
};
|
