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"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = void 0;
function _assert() {
const data = _interopRequireDefault(require("assert"));
_assert = function () {
return data;
};
return data;
}
function _path() {
const data = _interopRequireDefault(require("path"));
_path = function () {
return data;
};
return data;
}
function _utils() {
const data = require("@parcel/utils");
_utils = function () {
return data;
};
return data;
}
function _diagnostic() {
const data = _interopRequireWildcard(require("@parcel/diagnostic"));
_diagnostic = function () {
return data;
};
return data;
}
var _builtins = _interopRequireWildcard(require("./builtins"));
function _nullthrows() {
const data = _interopRequireDefault(require("nullthrows"));
_nullthrows = function () {
return data;
};
return data;
}
function _module() {
const data = _interopRequireDefault(require("module"));
_module = function () {
return data;
};
return data;
}
function _url2() {
const data = require("url");
_url2 = function () {
return data;
};
return data;
}
function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function (nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }
function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
const EMPTY_SHIM = require.resolve('./_empty');
/**
* This resolver implements a modified version of the node_modules resolution algorithm:
* https://nodejs.org/api/modules.html#modules_all_together
*
* In addition to the standard algorithm, Parcel supports:
* - All file extensions supported by Parcel.
* - Glob file paths
* - Absolute paths (e.g. /foo) resolved relative to the project root.
* - Tilde paths (e.g. ~/foo) resolved relative to the nearest module root in node_modules.
* - The package.json module, jsnext:main, and browser field as replacements for package.main.
* - The package.json browser and alias fields as an alias map within a local module.
* - The package.json alias field in the root package for global aliases across all modules.
*/
class NodeResolver {
constructor(opts) {
this.extensions = opts.extensions.map(ext => ext.startsWith('.') ? ext : '.' + ext);
this.mainFields = opts.mainFields;
this.fs = opts.fs;
this.projectRoot = opts.projectRoot;
this.packageCache = new Map();
this.rootPackage = null;
this.packageManager = opts.packageManager;
this.logger = opts.logger;
}
async resolve({
filename,
parent,
specifierType,
env,
sourcePath,
loc
}) {
let ctx = {
invalidateOnFileCreate: [],
invalidateOnFileChange: new Set(),
specifierType,
loc
}; // Get file extensions to search
let extensions = this.extensions.slice();
if (parent) {
// parent's extension given high priority
let parentExt = _path().default.extname(parent);
extensions = [parentExt, ...extensions.filter(ext => ext !== parentExt)];
}
extensions.unshift('');
try {
// Resolve the module directory or local file path
let module = await this.resolveModule({
filename,
parent,
env,
ctx,
sourcePath
});
if (!module) {
return {
isExcluded: true
};
}
let resolved;
if (module.moduleDir) {
resolved = await this.loadNodeModules(module, extensions, env, ctx);
} else if (module.filePath) {
if (module.code != null) {
return {
filePath: await this.fs.realpath(module.filePath),
code: module.code,
invalidateOnFileCreate: ctx.invalidateOnFileCreate,
invalidateOnFileChange: [...ctx.invalidateOnFileChange],
query: module.query
};
}
resolved = await this.loadRelative(module.filePath, extensions, env, parent ? _path().default.dirname(parent) : this.projectRoot, ctx);
}
if (resolved) {
let _resolved = resolved; // For Flow
return {
filePath: await this.fs.realpath(_resolved.path),
sideEffects: _resolved.pkg && !this.hasSideEffects(_resolved.path, _resolved.pkg) ? false : undefined,
invalidateOnFileCreate: ctx.invalidateOnFileCreate,
invalidateOnFileChange: [...ctx.invalidateOnFileChange],
query: module.query
};
}
} catch (err) {
if (err instanceof _diagnostic().default) {
return {
diagnostics: err.diagnostics,
invalidateOnFileCreate: ctx.invalidateOnFileCreate,
invalidateOnFileChange: [...ctx.invalidateOnFileChange]
};
} else {
throw err;
}
}
return null;
}
async resolveModule({
filename,
parent,
env,
ctx,
sourcePath
}) {
let specifier = filename;
let sourceFile = parent || _path().default.join(this.projectRoot, 'index');
let query; // If this isn't the entrypoint, resolve the input file to an absolute path
if (parent) {
let res = await this.resolveFilename(filename, _path().default.dirname(sourceFile), ctx.specifierType);
if (!res) {
return null;
}
filename = res.filePath;
query = res.query;
} // Resolve aliases in the parent module for this file.
let alias = await this.loadAlias(filename, sourceFile, env, ctx);
if (alias) {
if (alias.type === 'global') {
return {
filePath: _path().default.join(this.projectRoot, `${alias.resolved}.js`),
code: `module.exports=${alias.resolved};`,
query
};
}
filename = alias.resolved;
} // Return just the file path if this is a file, not in node_modules
if (_path().default.isAbsolute(filename)) {
return {
filePath: filename,
query
};
}
let builtin = this.findBuiltin(filename, env);
if (builtin === null) {
return null;
} else if (builtin === _builtins.empty) {
return {
filePath: _builtins.empty
};
} else if (builtin !== undefined) {
filename = builtin;
}
if (this.shouldIncludeNodeModule(env, filename) === false) {
if (sourcePath && env.isLibrary && !builtin) {
await this.checkExcludedDependency(sourcePath, filename, ctx);
}
return null;
} // Resolve the module in node_modules
let resolved;
try {
resolved = this.findNodeModulePath(filename, sourceFile, ctx);
} catch (err) {// ignore
} // Auto install node builtin polyfills if not already available
if (resolved === undefined && builtin != null) {
let packageName = builtin.split('/')[0];
let packageManager = this.packageManager;
if (packageManager) {
var _this$logger, _ctx$loc$filePath, _ctx$loc;
(_this$logger = this.logger) === null || _this$logger === void 0 ? void 0 : _this$logger.warn({
message: (0, _diagnostic().md)`Auto installing polyfill for Node builtin module "${specifier}"...`,
codeFrames: [{
filePath: (_ctx$loc$filePath = (_ctx$loc = ctx.loc) === null || _ctx$loc === void 0 ? void 0 : _ctx$loc.filePath) !== null && _ctx$loc$filePath !== void 0 ? _ctx$loc$filePath : sourceFile,
codeHighlights: ctx.loc ? [{
message: 'used here',
start: ctx.loc.start,
end: ctx.loc.end
}] : []
}],
documentationURL: 'https://parceljs.org/features/node-emulation/#polyfilling-%26-excluding-builtin-node-modules'
});
await packageManager.resolve(builtin, this.projectRoot + '/index', {
saveDev: true,
shouldAutoInstall: true
}); // Re-resolve
try {
resolved = this.findNodeModulePath(filename, sourceFile, ctx);
} catch (err) {// ignore
}
} else {
var _ctx$loc$filePath2, _ctx$loc2;
throw new (_diagnostic().default)({
diagnostic: {
message: (0, _diagnostic().md)`Node builtin polyfill "${packageName}" is not installed, but auto install is disabled.`,
codeFrames: [{
filePath: (_ctx$loc$filePath2 = (_ctx$loc2 = ctx.loc) === null || _ctx$loc2 === void 0 ? void 0 : _ctx$loc2.filePath) !== null && _ctx$loc$filePath2 !== void 0 ? _ctx$loc$filePath2 : sourceFile,
codeHighlights: ctx.loc ? [{
message: 'used here',
start: ctx.loc.start,
end: ctx.loc.end
}] : []
}],
documentationURL: 'https://parceljs.org/features/node-emulation/#polyfilling-%26-excluding-builtin-node-modules',
hints: [(0, _diagnostic().md)`Install the "${packageName}" package with your package manager, and run Parcel again.`]
}
});
}
}
if (resolved === undefined && process.versions.pnp != null && parent) {
try {
let [moduleName, subPath] = this.getModuleParts(filename); // $FlowFixMe[prop-missing]
let pnp = _module().default.findPnpApi(_path().default.dirname(parent));
let res = pnp.resolveToUnqualified(moduleName + ( // retain slash in `require('assert/')` to force loading builtin from npm
filename[moduleName.length] === '/' ? '/' : ''), parent);
resolved = {
moduleName,
subPath,
moduleDir: res,
filePath: _path().default.join(res, subPath || '')
}; // Invalidate whenever the .pnp.js file changes.
ctx.invalidateOnFileChange.add(pnp.resolveToUnqualified('pnpapi', null));
} catch (e) {
if (e.code !== 'MODULE_NOT_FOUND') {
return null;
}
}
} // If we couldn't resolve the node_modules path, just return the module name info
if (resolved === undefined) {
let [moduleName, subPath] = this.getModuleParts(filename);
resolved = {
moduleName,
subPath
};
let alternativeModules = await (0, _utils().findAlternativeNodeModules)(this.fs, moduleName, _path().default.dirname(sourceFile));
if (alternativeModules.length) {
var _resolved2;
throw new (_diagnostic().default)({
diagnostic: {
message: (0, _diagnostic().md)`Cannot find module ${(0, _nullthrows().default)((_resolved2 = resolved) === null || _resolved2 === void 0 ? void 0 : _resolved2.moduleName)}`,
hints: alternativeModules.map(r => {
return `Did you mean '__${r}__'?`;
})
}
});
}
}
if (resolved != null) {
resolved.query = query;
}
return resolved;
}
shouldIncludeNodeModule({
includeNodeModules
}, name) {
if (includeNodeModules === false) {
return false;
}
if (Array.isArray(includeNodeModules)) {
let [moduleName] = this.getModuleParts(name);
return includeNodeModules.includes(moduleName);
}
if (includeNodeModules && typeof includeNodeModules === 'object') {
let [moduleName] = this.getModuleParts(name);
let include = includeNodeModules[moduleName];
if (include != null) {
return !!include;
}
}
}
async checkExcludedDependency(sourceFile, name, ctx) {
var _pkg$dependencies, _pkg$peerDependencies, _pkg$engines;
let [moduleName] = this.getModuleParts(name);
let pkg = await this.findPackage(sourceFile, ctx);
if (!pkg) {
return;
}
if (!((_pkg$dependencies = pkg.dependencies) !== null && _pkg$dependencies !== void 0 && _pkg$dependencies[moduleName]) && !((_pkg$peerDependencies = pkg.peerDependencies) !== null && _pkg$peerDependencies !== void 0 && _pkg$peerDependencies[moduleName]) && !((_pkg$engines = pkg.engines) !== null && _pkg$engines !== void 0 && _pkg$engines[moduleName])) {
let pkgContent = await this.fs.readFile(pkg.pkgfile, 'utf8');
throw new (_diagnostic().default)({
diagnostic: {
message: (0, _diagnostic().md)`External dependency "${moduleName}" is not declared in package.json.`,
codeFrames: [{
filePath: pkg.pkgfile,
language: 'json',
code: pkgContent,
codeHighlights: pkg.dependencies ? (0, _diagnostic().generateJSONCodeHighlights)(pkgContent, [{
key: `/dependencies`,
type: 'key'
}]) : [{
start: {
line: 1,
column: 1
},
end: {
line: 1,
column: 1
}
}]
}],
hints: [`Add "${moduleName}" as a dependency.`]
}
});
}
}
async resolveFilename(filename, dir, specifierType) {
let url;
switch (filename[0]) {
case '/':
{
if (specifierType === 'url' && filename[1] === '/') {
// A protocol-relative URL, e.g `url('//example.com/foo.png')`. Ignore.
return null;
} // Absolute path. Resolve relative to project root.
dir = this.projectRoot;
filename = '.' + filename;
break;
}
case '~':
{
// Tilde path. Resolve relative to nearest node_modules directory,
// the nearest directory with package.json or the project root - whichever comes first.
const insideNodeModules = dir.includes('node_modules');
while (dir !== this.projectRoot && _path().default.basename(_path().default.dirname(dir)) !== 'node_modules' && (insideNodeModules || !(await this.fs.exists(_path().default.join(dir, 'package.json'))))) {
dir = _path().default.dirname(dir);
if (dir === _path().default.dirname(dir)) {
dir = this.projectRoot;
break;
}
}
filename = filename.slice(1);
if (filename[0] === '/' || filename[0] === '\\') {
filename = '.' + filename;
}
break;
}
case '.':
{
// Relative path.
break;
}
case '#':
{
if (specifierType === 'url') {
// An ID-only URL, e.g. `url(#clip-path)` for CSS rules. Ignore.
return null;
}
break;
}
default:
{
// Bare specifier. If this is a URL, it's treated as relative,
// otherwise as a node_modules package.
if (specifierType === 'esm') {
// Try parsing as a URL first in case there is a scheme.
// Otherwise, fall back to an `npm:` specifier, parsed below.
try {
url = new URL(filename);
} catch (e) {
filename = 'npm:' + filename;
}
} else if (specifierType === 'commonjs') {
return {
filePath: filename
};
}
}
} // If this is a URL dependency or ESM specifier, parse as a URL.
// Otherwise, if this is CommonJS, parse as a platform path.
if (specifierType === 'url' || specifierType === 'esm') {
var _url;
url = (_url = url) !== null && _url !== void 0 ? _url : new URL(filename, `file:${dir}/index`);
let filePath;
if (url.protocol === 'npm:') {
// The `npm:` scheme allows URLs to resolve to node_modules packages.
filePath = decodeURIComponent(url.pathname);
} else if (url.protocol === 'node:') {
// Preserve the `node:` prefix for use later.
// Node does not URL decode or support query params here.
// See https://github.com/nodejs/node/issues/39710.
return {
filePath: filename
};
} else if (url.protocol === 'file:') {
// $FlowFixMe
filePath = (0, _url2().fileURLToPath)(url);
} else if (specifierType === 'url') {
// Don't handle other protocols like http:
return null;
} else {
// Throw on unsupported url schemes in ESM dependencies.
// We may support http: or data: urls eventually.
throw new (_diagnostic().default)({
diagnostic: {
message: `Unknown url scheme or pipeline '${url.protocol}'`
}
});
}
return {
filePath,
query: url.search ? new URLSearchParams(url.search) : undefined
};
} else {
// CommonJS specifier. Query params are not supported.
return {
filePath: _path().default.resolve(dir, filename)
};
}
}
async loadRelative(filename, extensions, env, parentdir, ctx) {
// Find a package.json file in the current package.
let pkg = await this.findPackage(filename, ctx); // First try as a file, then as a directory.
let resolvedFile = await this.loadAsFile({
file: filename,
extensions,
env,
pkg,
ctx
}); // Don't load as a directory if this is a URL dependency.
if (!resolvedFile && ctx.specifierType !== 'url') {
resolvedFile = await this.loadDirectory({
dir: filename,
extensions,
env,
ctx,
pkg
});
}
if (!resolvedFile) {
// If we can't load the file do a fuzzySearch for potential hints
let relativeFileSpecifier = (0, _utils().relativePath)(parentdir, filename);
let potentialFiles = await (0, _utils().findAlternativeFiles)(this.fs, relativeFileSpecifier, parentdir, this.projectRoot, true, ctx.specifierType !== 'url', extensions.length === 0);
throw new (_diagnostic().default)({
diagnostic: {
message: (0, _diagnostic().md)`Cannot load file '${relativeFileSpecifier}' in '${(0, _utils().relativePath)(this.projectRoot, parentdir)}'.`,
hints: potentialFiles.map(r => {
return `Did you mean '__${r}__'?`;
})
}
});
}
return resolvedFile;
}
findBuiltin(filename, env) {
const isExplicitNode = filename.startsWith('node:');
if (isExplicitNode || _builtins.default[filename]) {
if (env.isNode()) {
return null;
}
if (isExplicitNode) {
filename = filename.substr(5);
} // By default, exclude node builtins from libraries unless explicitly opted in.
if (env.isLibrary && this.shouldIncludeNodeModule(env, filename) !== true) {
return null;
}
return _builtins.default[filename] || _builtins.empty;
}
if (env.isElectron() && filename === 'electron') {
return null;
}
}
findNodeModulePath(filename, sourceFile, ctx) {
let [moduleName, subPath] = this.getModuleParts(filename);
ctx.invalidateOnFileCreate.push({
fileName: `node_modules/${moduleName}`,
aboveFilePath: sourceFile
});
let dir = _path().default.dirname(sourceFile);
let moduleDir = this.fs.findNodeModule(moduleName, dir);
if (moduleDir) {
return {
moduleName,
subPath,
moduleDir,
filePath: subPath ? _path().default.join(moduleDir, subPath) : moduleDir
};
}
return undefined;
}
async loadNodeModules(module, extensions, env, ctx) {
// If a module was specified as a module sub-path (e.g. some-module/some/path),
// it is likely a file. Try loading it as a file first.
if (module.subPath && module.moduleDir) {
let pkg = await this.readPackage(module.moduleDir, ctx);
let res = await this.loadAsFile({
file: (0, _nullthrows().default)(module.filePath),
extensions,
env,
pkg,
ctx
});
if (res) {
return res;
}
} // Otherwise, load as a directory.
return this.loadDirectory({
dir: (0, _nullthrows().default)(module.filePath),
extensions,
env,
ctx
});
}
async loadDirectory({
dir,
extensions,
env,
ctx,
pkg
}) {
var _pkg;
let failedEntry;
try {
pkg = await this.readPackage(dir, ctx);
if (pkg) {
// Get a list of possible package entry points.
let entries = this.getPackageEntries(pkg, env);
for (let entry of entries) {
// First try loading package.main as a file, then try as a directory.
let res = (await this.loadAsFile({
file: entry.filename,
extensions,
env,
pkg,
ctx
})) || (await this.loadDirectory({
dir: entry.filename,
extensions,
env,
pkg,
ctx
}));
if (res) {
return res;
} else {
failedEntry = entry;
throw new Error('');
}
}
}
} catch (e) {
if (failedEntry && pkg) {
// If loading the entry failed, try to load an index file, and fall back
// to it if it exists.
let indexFallback = await this.loadAsFile({
file: _path().default.join(dir, 'index'),
extensions,
env,
pkg,
ctx
});
if (indexFallback != null) {
return indexFallback;
}
let fileSpecifier = (0, _utils().relativePath)(dir, failedEntry.filename);
let alternatives = await (0, _utils().findAlternativeFiles)(this.fs, fileSpecifier, pkg.pkgdir, this.projectRoot);
let alternative = alternatives[0];
let pkgContent = await this.fs.readFile(pkg.pkgfile, 'utf8');
throw new (_diagnostic().default)({
diagnostic: {
message: (0, _diagnostic().md)`Could not load '${fileSpecifier}' from module '${pkg.name}' found in package.json#${failedEntry.field}`,
codeFrames: [{
filePath: pkg.pkgfile,
language: 'json',
code: pkgContent,
codeHighlights: (0, _diagnostic().generateJSONCodeHighlights)(pkgContent, [{
key: `/${failedEntry.field}`,
type: 'value',
message: (0, _diagnostic().md)`'${fileSpecifier}' does not exist${alternative ? `, did you mean '${alternative}'?` : ''}'`
}])
}]
}
});
}
} // Skip index fallback unless this is actually a directory.
try {
if (!(await this.fs.stat(dir)).isDirectory()) {
return;
}
} catch (err) {
return;
} // Fall back to an index file inside the directory.
return this.loadAsFile({
file: _path().default.join(dir, 'index'),
extensions,
env,
pkg: (_pkg = pkg) !== null && _pkg !== void 0 ? _pkg : await this.findPackage(_path().default.join(dir, 'index'), ctx),
ctx
});
}
async readPackage(dir, ctx) {
let file = _path().default.join(dir, 'package.json');
let cached = this.packageCache.get(file);
if (cached) {
ctx.invalidateOnFileChange.add(cached.pkgfile);
return cached;
}
let json;
try {
json = await this.fs.readFile(file, 'utf8');
} catch (err) {
// If the package.json doesn't exist, watch for it to be created.
ctx.invalidateOnFileCreate.push({
filePath: file
});
throw err;
} // Add the invalidation *before* we try to parse the JSON in case of errors
// so that changes are picked up if the file is edited to fix the error.
ctx.invalidateOnFileChange.add(file);
let pkg = JSON.parse(json);
await this.processPackage(pkg, file, dir);
this.packageCache.set(file, pkg);
return pkg;
}
async processPackage(pkg, file, dir) {
pkg.pkgfile = file;
pkg.pkgdir = dir; // If the package has a `source` field, check if it is behind a symlink.
// If so, we treat the module as source code rather than a pre-compiled module.
if (pkg.source) {
let realpath = await this.fs.realpath(file);
if (realpath === file) {
delete pkg.source;
}
}
}
getPackageEntries(pkg, env) {
return this.mainFields.map(field => {
if (field === 'browser' && pkg.browser != null) {
if (!env.isBrowser()) {
return null;
} else if (typeof pkg.browser === 'string') {
return {
field,
filename: pkg.browser
};
} else if (typeof pkg.browser === 'object' && pkg.browser[pkg.name]) {
return {
field: `browser/${pkg.name}`,
filename: pkg.browser[pkg.name]
};
}
}
return {
field,
filename: pkg[field]
};
}).filter(entry => entry && entry.filename && typeof entry.filename === 'string').map(entry => {
(0, _assert().default)(entry != null && typeof entry.filename === 'string'); // Current dir refers to an index file
if (entry.filename === '.' || entry.filename === './') {
entry.filename = 'index';
}
return {
field: entry.field,
filename: _path().default.resolve(pkg.pkgdir, entry.filename)
};
});
}
async loadAsFile({
file,
extensions,
env,
pkg,
ctx
}) {
// Try all supported extensions
let files = await this.expandFile(file, extensions, env, pkg);
let found = this.fs.findFirstFile(files); // Add invalidations for higher priority files so we
// re-resolve if any of them are created.
for (let file of files) {
if (file === found) {
break;
}
ctx.invalidateOnFileCreate.push({
filePath: file
});
}
if (found) {
return {
path: found,
pkg
};
}
return null;
}
async expandFile(file, extensions, env, pkg, expandAliases = true) {
// Expand extensions and aliases
let res = [];
for (let ext of extensions) {
let f = file + ext;
if (expandAliases) {
let alias = await this.resolveAliases(f, env, pkg);
let aliasPath;
if (alias && alias.type === 'file') {
aliasPath = alias.resolved;
}
if (aliasPath && aliasPath !== f) {
res = res.concat(await this.expandFile(aliasPath, extensions, env, pkg, false));
}
}
if (_path().default.extname(f)) {
res.push(f);
}
}
return res;
}
async resolveAliases(filename, env, pkg) {
let localAliases = await this.resolvePackageAliases(filename, env, pkg);
if (localAliases) {
return localAliases;
} // First resolve local package aliases, then project global ones.
return this.resolvePackageAliases(filename, env, this.rootPackage);
}
async resolvePackageAliases(filename, env, pkg) {
if (!pkg) {
return null;
}
if (pkg.source && !Array.isArray(pkg.source)) {
let alias = await this.getAlias(filename, pkg, pkg.source);
if (alias != null) {
return alias;
}
}
if (pkg.alias) {
let alias = await this.getAlias(filename, pkg, pkg.alias);
if (alias != null) {
return alias;
}
}
if (pkg.browser && env.isBrowser()) {
let alias = await this.getAlias(filename, pkg, pkg.browser);
if (alias != null) {
return alias;
}
}
return null;
}
async getAlias(filename, pkg, aliases) {
if (!filename || !aliases || typeof aliases !== 'object') {
return null;
}
let dir = pkg.pkgdir;
let alias; // If filename is an absolute path, get one relative to the package.json directory.
if (_path().default.isAbsolute(filename)) {
filename = (0, _utils().relativePath)(dir, filename);
alias = this.lookupAlias(aliases, filename);
} else {
// It is a node_module. First try the entire filename as a key.
alias = this.lookupAlias(aliases, (0, _utils().normalizeSeparators)(filename));
if (alias == null) {
// If it didn't match, try only the module name.
let [moduleName, subPath] = this.getModuleParts(filename);
alias = this.lookupAlias(aliases, moduleName);
if (typeof alias === 'string' && subPath) {
let isRelative = alias.startsWith('./'); // Append the filename back onto the aliased module.
alias = _path().default.posix.join(alias, subPath); // because of path.join('./nested', 'sub') === 'nested/sub'
if (isRelative) alias = './' + alias;
}
}
} // If the alias is set to `false`, return an empty file.
if (alias === false) {
return {
type: 'file',
sourcePath: pkg.pkgfile,
resolved: EMPTY_SHIM
};
}
if (alias instanceof Object) {
if (alias.global) {
if (typeof alias.global !== 'string' || alias.global.length === 0) {
throw new (_diagnostic().default)({
diagnostic: {
message: (0, _diagnostic().md)`The global alias for ${filename} is invalid.`,
hints: [`Only nonzero-length strings are valid global aliases.`]
}
});
}
return {
type: 'global',
sourcePath: pkg.pkgfile,
resolved: alias.global
};
} else if (alias.fileName) {
alias = alias.fileName;
}
}
if (typeof alias === 'string') {
// Assume file
let resolved = await this.resolveFilename(alias, dir, 'commonjs');
if (!resolved) {
return null;
}
return {
type: 'file',
sourcePath: pkg.pkgfile,
resolved: resolved.filePath
};
}
return null;
}
lookupAlias(aliases, filename) {
if (typeof aliases !== 'object') {
return null;
} // First, try looking up the exact filename
let alias = aliases[filename];
if (alias == null) {
// Otherwise, try replacing glob keys
for (let key in aliases) {
let val = aliases[key];
if (typeof val === 'string' && (0, _utils().isGlob)(key)) {
// https://github.com/micromatch/picomatch/issues/77
if (filename.startsWith('./')) {
filename = filename.slice(2);
}
let re = (0, _utils().globToRegex)(key, {
capture: true
});
if (re.test(filename)) {
alias = filename.replace(re, val);
break;
}
}
}
}
return alias;
}
async findPackage(sourceFile, ctx) {
ctx.invalidateOnFileCreate.push({
fileName: 'package.json',
aboveFilePath: sourceFile
}); // Find the nearest package.json file within the current node_modules folder
let res = await (0, _utils().loadConfig)(this.fs, sourceFile, ['package.json'], this.projectRoot, // By default, loadConfig uses JSON5. Use normal JSON for package.json files
// since they don't support comments and JSON.parse is faster.
{
parser: (...args) => JSON.parse(...args)
});
if (res != null) {
let file = res.files[0].filePath;
let dir = _path().default.dirname(file);
ctx.invalidateOnFileChange.add(file);
let pkg = res.config;
await this.processPackage(pkg, file, dir);
return pkg;
}
return null;
}
async loadAlias(filename, sourceFile, env, ctx) {
// Load the root project's package.json file if we haven't already
if (!this.rootPackage) {
this.rootPackage = await this.findPackage(_path().default.join(this.projectRoot, 'index'), ctx);
} // Load the local package, and resolve aliases
let pkg = await this.findPackage(sourceFile, ctx);
return this.resolveAliases(filename, env, pkg);
}
getModuleParts(name) {
name = _path().default.normalize(name);
let splitOn = name.indexOf(_path().default.sep);
if (name.charAt(0) === '@') {
splitOn = name.indexOf(_path().default.sep, splitOn + 1);
}
if (splitOn < 0) {
return [(0, _utils().normalizeSeparators)(name), undefined];
} else {
return [(0, _utils().normalizeSeparators)(name.substring(0, splitOn)), name.substring(splitOn + 1) || undefined];
}
}
hasSideEffects(filePath, pkg) {
switch (typeof pkg.sideEffects) {
case 'boolean':
return pkg.sideEffects;
case 'string':
{
let glob = pkg.sideEffects;
(0, _assert().default)(typeof glob === 'string');
let relative = _path().default.relative(pkg.pkgdir, filePath);
if (!glob.includes('/')) {
glob = `**/${glob}`;
} // Trim off "./" to make micromatch behave correctly,
// `path.relative` never returns a leading "./"
if (glob.startsWith('./')) {
glob = glob.substr(2);
}
return (0, _utils().isGlobMatch)(relative, glob, {
dot: true
});
}
case 'object':
return pkg.sideEffects.some(sideEffects => this.hasSideEffects(filePath, { ...pkg,
sideEffects
}));
}
return true;
}
}
exports.default = NodeResolver;