Aubert Marvin
419 lines
16 KiB
JavaScript
419 lines
16 KiB
JavaScript
var isCore = require('is-core-module');
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var fs = require('fs');
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var path = require('path');
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var $Error = require('es-errors');
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var $TypeError = require('es-errors/type');
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var getHomedir = require('./homedir');
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var caller = require('./caller');
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var nodeModulesPaths = require('./node-modules-paths');
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var normalizeOptions = require('./normalize-options');
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var resolveExports = require('./exports-resolve');
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var parsePackageSpecifier = require('./parse-package-specifier');
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var getExportsCategory = require('./get-exports-category');
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var getCategoryInfo = require('node-exports-info/getCategoryInfo');
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var getCategoriesForRange = require('node-exports-info/getCategoriesForRange');
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var selectMostRestrictive = require('./select-most-restrictive');
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var realpathFS = process.platform !== 'win32' && fs.realpathSync && typeof fs.realpathSync.native === 'function' ? fs.realpathSync.native : fs.realpathSync;
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var relativePathRegex = /^(?:\.\.?(?:\/|$)|\/|([A-Za-z]:)?[/\\])/;
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var windowsDriveRegex = /^\w:[/\\]*$/;
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var nodeModulesRegex = /[/\\]node_modules[/\\]*$/;
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var homedir = getHomedir();
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function defaultPaths() {
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return [
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path.join(homedir, '.node_modules'),
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path.join(homedir, '.node_libraries')
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];
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}
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var defaultIsFile = function isFile(file) {
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try {
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var stat = fs.statSync(file, { throwIfNoEntry: false });
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} catch (e) {
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if (e && (e.code === 'ENOENT' || e.code === 'ENOTDIR')) return false;
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throw e;
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}
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return !!stat && (stat.isFile() || stat.isFIFO());
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};
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var defaultIsDir = function isDirectory(dir) {
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try {
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var stat = fs.statSync(dir, { throwIfNoEntry: false });
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} catch (e) {
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if (e && (e.code === 'ENOENT' || e.code === 'ENOTDIR')) return false;
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throw e;
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}
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return !!stat && stat.isDirectory();
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};
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var defaultRealpathSync = function realpathSync(x) {
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try {
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return realpathFS(x);
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} catch (realpathErr) {
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if (realpathErr.code !== 'ENOENT') {
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throw realpathErr;
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}
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}
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return x;
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};
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function maybeRealpathSync(realpathSync, x, opts) {
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if (!opts || !opts.preserveSymlinks) {
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return realpathSync(x);
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}
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return x;
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}
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function defaultReadPackageSync(readFileSync, pkgfile) {
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return JSON.parse(readFileSync(pkgfile));
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}
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function getPackageCandidates(x, start, opts) {
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var dirs = nodeModulesPaths(start, opts, x);
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for (var i = 0; i < dirs.length; i++) {
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dirs[i] = path.join(dirs[i], x);
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}
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return dirs;
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}
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function findConsumerPackageSync(startDir, isFile, readPackageSync, readFileSync) {
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var dir = path.resolve(startDir);
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while (true) {
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var pkgfile = path.join(dir, 'package.json');
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if (isFile(pkgfile)) {
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try {
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return readPackageSync(readFileSync, pkgfile);
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} catch (e) {
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if (!(e instanceof SyntaxError)) {
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throw e;
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}
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}
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}
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var parentDir = path.dirname(dir);
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if (parentDir === dir) {
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return null;
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}
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dir = parentDir;
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}
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}
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function findPackageWithDirSync(startDir, isFile, readPackageSync, readFileSync) {
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var dir = path.resolve(startDir);
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while (true) {
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// Stop at node_modules boundaries - can't self-reference across node_modules
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if (nodeModulesRegex.test(dir)) {
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return null;
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}
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var pkgfile = path.join(dir, 'package.json');
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if (isFile(pkgfile)) {
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try {
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var pkg = readPackageSync(readFileSync, pkgfile);
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return {
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__proto__: null, pkg: pkg, dir: dir
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};
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} catch (e) {
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if (!(e instanceof SyntaxError)) {
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throw e;
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}
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}
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}
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var parentDir = path.dirname(dir);
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if (parentDir === dir) {
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return null;
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}
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dir = parentDir;
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}
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}
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module.exports = function resolveSync(x, options) {
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if (typeof x !== 'string') {
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throw new $TypeError('Path must be a string.');
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}
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var opts = normalizeOptions(x, options);
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var isFile = opts.isFile || defaultIsFile;
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var isDirectory = opts.isDirectory || defaultIsDir;
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var readFileSync = opts.readFileSync || fs.readFileSync;
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var realpathSync = opts.realpathSync || defaultRealpathSync;
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var readPackageSync = opts.readPackageSync || defaultReadPackageSync;
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if (opts.readFileSync && opts.readPackageSync) {
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throw new $TypeError('`readFileSync` and `readPackageSync` are mutually exclusive.');
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}
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var packageIterator = opts.packageIterator;
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var extensions = opts.extensions || ['.js'];
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var includeCoreModules = opts.includeCoreModules !== false;
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var basedir = opts.basedir || path.dirname(caller());
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var parent = opts.filename || basedir;
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opts.paths = opts.paths || defaultPaths();
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// Determine exports category
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var exportsCategory = getExportsCategory(opts);
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if (exportsCategory === 'engines') {
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// Read consumer's package.json to get engines.node
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var consumerPkg = findConsumerPackageSync(basedir, isFile, readPackageSync, readFileSync);
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if (consumerPkg && consumerPkg.engines && consumerPkg.engines.node) {
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var categories = getCategoriesForRange(consumerPkg.engines.node);
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exportsCategory = selectMostRestrictive(categories);
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} else {
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exportsCategory = null;
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}
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}
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var useExports = exportsCategory !== null && exportsCategory !== 'pre-exports';
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// ensure that `basedir` is an absolute path at this point, resolving against the process' current working directory
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var absoluteStart = maybeRealpathSync(realpathSync, path.resolve(basedir), opts);
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if (opts.basedir && !isDirectory(absoluteStart)) {
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var dirError = new $TypeError('Provided basedir "' + opts.basedir + '" is not a directory' + (opts.preserveSymlinks ? '' : ', or a symlink to a directory'));
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dirError.code = 'INVALID_BASEDIR';
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throw dirError;
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}
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if (relativePathRegex.test(x)) {
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var res = path.resolve(absoluteStart, x);
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if (x === '.' || x === '..' || x.slice(-1) === '/') res += '/';
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var m = loadAsFileSync(res) || loadAsDirectorySync(res);
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if (m) return maybeRealpathSync(realpathSync, m, opts);
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} else if (includeCoreModules && isCore(x)) {
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return x;
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} else if (useExports) {
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// Try self-reference resolution first
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var selfRef = resolveSelfReferenceSync(x, absoluteStart);
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if (selfRef) return maybeRealpathSync(realpathSync, selfRef, opts);
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var nE = loadNodeModulesWithExportsSync(x, absoluteStart);
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if (nE) return maybeRealpathSync(realpathSync, nE, opts);
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} else {
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var n = loadNodeModulesSync(x, absoluteStart);
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if (n) return maybeRealpathSync(realpathSync, n, opts);
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}
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var err = new $Error("Cannot find module '" + x + "' from '" + parent + "'");
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err.code = 'MODULE_NOT_FOUND';
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throw err;
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function resolveSelfReferenceSync(x, startDir) {
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var parsed = parsePackageSpecifier(x);
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var pkgInfo = findPackageWithDirSync(startDir, isFile, readPackageSync, readFileSync);
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if (!pkgInfo || !pkgInfo.pkg || pkgInfo.pkg.name !== parsed.name) {
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return null; // Not a self-reference
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}
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var pkg = pkgInfo.pkg;
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var pkgDir = pkgInfo.dir;
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if (opts.packageFilter) {
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pkg = opts.packageFilter(pkg, path.join(pkgDir, 'package.json'), pkgDir);
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}
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// If package has exports field, resolve via exports
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if (typeof pkg.exports !== 'undefined') {
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var categoryInfo = getCategoryInfo(exportsCategory, 'require');
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var conditions = opts.conditions || categoryInfo.conditions;
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var resolved = resolveExports(pkg.exports, parsed.subpath, conditions, categoryInfo.flags);
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if (resolved) {
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var resolvedPath = path.resolve(pkgDir, resolved);
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if (isFile(resolvedPath)) {
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return resolvedPath;
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}
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}
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// exports field exists but didn't resolve - this is an error per Node semantics
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return undefined;
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}
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// No exports field - fall back to traditional resolution for self-reference
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// (Note: this matches Node's behavior where self-ref without exports uses main)
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if (parsed.subpath === '.') {
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return loadAsDirectorySync(pkgDir);
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}
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var subPath = path.join(pkgDir, parsed.subpath.slice(1));
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var sm = loadAsFileSync(subPath);
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if (sm) return sm;
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return loadAsDirectorySync(subPath);
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}
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function loadAsFileSync(x) {
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var pkg = loadpkg(path.dirname(x));
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if (pkg && pkg.dir && pkg.pkg && opts.pathFilter) {
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var rfile = path.relative(pkg.dir, x);
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var r = opts.pathFilter(pkg.pkg, x, rfile);
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if (r) {
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x = path.resolve(pkg.dir, r); // eslint-disable-line no-param-reassign
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}
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}
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if (isFile(x)) {
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return x;
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}
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for (var i = 0; i < extensions.length; i++) {
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var file = x + extensions[i];
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if (isFile(file)) {
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return file;
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}
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}
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}
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function loadpkg(dir) {
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if (dir === '' || dir === '/') return;
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if (process.platform === 'win32' && windowsDriveRegex.test(dir)) {
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return;
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}
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if (nodeModulesRegex.test(dir)) return;
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var pkgfile = path.join(isDirectory(dir) ? maybeRealpathSync(realpathSync, dir, opts) : dir, 'package.json');
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if (!isFile(pkgfile)) {
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return loadpkg(path.dirname(dir));
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}
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var pkg;
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try {
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pkg = readPackageSync(readFileSync, pkgfile);
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} catch (e) {
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if (!(e instanceof SyntaxError)) {
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throw e;
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}
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}
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if (pkg && opts.packageFilter) {
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pkg = opts.packageFilter(pkg, pkgfile, dir);
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}
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return { pkg: pkg, dir: dir };
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}
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function loadAsDirectorySync(x) {
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var pkgfile = path.join(isDirectory(x) ? maybeRealpathSync(realpathSync, x, opts) : x, '/package.json');
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if (isFile(pkgfile)) {
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try {
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var pkg = readPackageSync(readFileSync, pkgfile);
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} catch (e) {}
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if (pkg && opts.packageFilter) {
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pkg = opts.packageFilter(pkg, pkgfile, x);
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}
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if (pkg && pkg.main) {
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if (typeof pkg.main !== 'string') {
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var mainError = new $TypeError('package “' + pkg.name + '” `main` must be a string');
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mainError.code = 'INVALID_PACKAGE_MAIN';
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throw mainError;
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}
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if (pkg.main === '.' || pkg.main === './') {
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pkg.main = 'index';
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}
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try {
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var mainPath = path.resolve(x, pkg.main);
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var m = loadAsFileSync(mainPath);
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if (m) return m;
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var n = loadAsDirectorySync(mainPath);
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if (n) return n;
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var checkIndex = loadAsFileSync(path.resolve(x, 'index'));
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if (checkIndex) return checkIndex;
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} catch (e) { }
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var incorrectMainError = new $Error("Cannot find module '" + path.resolve(x, pkg.main) + "'. Please verify that the package.json has a valid \"main\" entry");
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incorrectMainError.code = 'INCORRECT_PACKAGE_MAIN';
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throw incorrectMainError;
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}
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}
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return loadAsFileSync(path.join(x, '/index'));
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}
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function loadNodeModulesSync(x, start) {
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var thunk = function () { return getPackageCandidates(x, start, opts); };
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var dirs = packageIterator ? packageIterator(x, start, thunk, opts) : thunk();
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for (var i = 0; i < dirs.length; i++) {
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var dir = dirs[i];
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if (isDirectory(path.dirname(dir))) {
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var m = loadAsFileSync(dir);
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if (m) return m;
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var n = loadAsDirectorySync(dir);
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if (n) return n;
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}
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}
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}
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function loadNodeModulesWithExportsSync(x, start) {
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var parsed = parsePackageSpecifier(x);
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var categoryInfo = getCategoryInfo(exportsCategory, 'require');
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var conditions = opts.conditions || categoryInfo.conditions;
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// Get candidate directories for the package name
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var thunk = function () { return getPackageCandidates(parsed.name, start, opts); };
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var dirs = packageIterator ? packageIterator(parsed.name, start, thunk, opts) : thunk();
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for (var i = 0; i < dirs.length; i++) {
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var pkgDir = dirs[i];
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if (isDirectory(pkgDir)) {
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var pkgfile = path.join(pkgDir, 'package.json');
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if (isFile(pkgfile)) {
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var pkg;
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try {
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pkg = readPackageSync(readFileSync, pkgfile);
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} catch (e) {
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if (!(e instanceof SyntaxError)) {
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throw e;
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}
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pkg = null;
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}
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if (pkg) {
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if (opts.packageFilter) {
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pkg = opts.packageFilter(pkg, pkgfile, pkgDir);
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}
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// If package has exports field, use exports resolution
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if (typeof pkg.exports !== 'undefined') {
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var resolved = resolveExports(pkg.exports, parsed.subpath, conditions, categoryInfo.flags);
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if (resolved) {
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var resolvedPath = path.resolve(pkgDir, resolved);
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if (isFile(resolvedPath)) {
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return resolvedPath;
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}
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}
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// exports field exists but didn't resolve - this is an error per Node semantics
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// (don't fall through to main/index)
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return undefined;
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}
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// No exports field, fall back to traditional resolution
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if (parsed.subpath === '.') {
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var result = loadAsDirectorySync(pkgDir);
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if (result) { return result; }
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} else {
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var subPath = path.join(pkgDir, parsed.subpath.slice(1));
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var sm = loadAsFileSync(subPath);
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if (sm) { return sm; }
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var sn = loadAsDirectorySync(subPath);
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if (sn) { return sn; }
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}
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}
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} else if (parsed.subpath === '.') {
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// No package.json, fall back to file/directory resolution
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var m = loadAsFileSync(pkgDir);
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if (m) { return m; }
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var n = loadAsDirectorySync(pkgDir);
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if (n) { return n; }
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} else {
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// No package.json, fall back to file/directory resolution for subpath
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var fullPath = path.join(pkgDir, parsed.subpath.slice(1));
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var m2 = loadAsFileSync(fullPath);
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if (m2) { return m2; }
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var n2 = loadAsDirectorySync(fullPath);
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if (n2) { return n2; }
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}
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}
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}
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}
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};
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