lib: refactor platform utility methods

PR-URL: https://github.com/nodejs/node/pull/53817
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Daeyeon Jeong <daeyeon.dev@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Marco Ippolito <marcoippolito54@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Stephen Belanger <admin@stephenbelanger.com>

lib/fs.js

@@ -94,6 +94,8 @@ const {
   },
   SideEffectFreeRegExpPrototypeExec,
   defineLazyProperties,
+  isWindows,
+  isMacOS,
 } = require('internal/util');
 const {
   constants: {
@@ -167,9 +169,6 @@ let kResistStopPropagation;
 let FileReadStream;
 let FileWriteStream;
 
-const isWindows = process.platform === 'win32';
-const isOSX = process.platform === 'darwin';
-
 function showTruncateDeprecation() {
   if (truncateWarn) {
     process.emitWarning(
@@ -2462,7 +2461,7 @@ function watch(filename, options, listener) {
   // TODO(anonrig): Remove non-native watcher when/if libuv supports recursive.
   // As of November 2022, libuv does not support recursive file watch on all platforms,
   // e.g. Linux due to the limitations of inotify.
-  if (options.recursive && !isOSX && !isWindows) {
+  if (options.recursive && !isMacOS && !isWindows) {
     const nonNativeWatcher = require('internal/fs/recursive_watch');
     watcher = new nonNativeWatcher.FSWatcher(options);
     watcher[watchers.kFSWatchStart](path);

lib/internal/fs/glob.js

@@ -20,6 +20,8 @@ const { join, resolve, basename, isAbsolute } = require('path');
 
 const {
   kEmptyObject,
+  isWindows,
+  isMacOS,
 } = require('internal/util');
 const {
   validateFunction,
@@ -35,9 +37,6 @@ function lazyMinimatch() {
   return minimatch;
 }
 
-const isWindows = process.platform === 'win32';
-const isOSX = process.platform === 'darwin';
-
 /**
  * @param {string} path
  * @returns {Promise<DirentFromStats|null>}
@@ -217,7 +216,7 @@ class Glob {
     }
     this.matchers = ArrayPrototypeMap(patterns, (pattern) => new (lazyMinimatch().Minimatch)(pattern, {
       __proto__: null,
-      nocase: isWindows || isOSX,
+      nocase: isWindows || isMacOS,
       windowsPathsNoEscape: true,
       nonegate: true,
       nocomment: true,

lib/internal/fs/promises.js

@@ -98,6 +98,8 @@ const {
   kEmptyObject,
   lazyDOMException,
   promisify,
+  isWindows,
+  isMacOS,
 } = require('internal/util');
 const EventEmitter = require('events');
 const { StringDecoder } = require('string_decoder');
@@ -127,9 +129,6 @@ const {
 const getDirectoryEntriesPromise = promisify(getDirents);
 const validateRmOptionsPromise = promisify(validateRmOptions);
 
-const isWindows = process.platform === 'win32';
-const isOSX = process.platform === 'darwin';
-
 let cpPromises;
 function lazyLoadCpPromises() {
   return cpPromises ??= require('internal/fs/cp/cp').cpFn;
@@ -1257,7 +1256,7 @@ async function* _watch(filename, options = kEmptyObject) {
     // TODO(anonrig): Remove non-native watcher when/if libuv supports recursive.
     // As of November 2022, libuv does not support recursive file watch on all platforms,
     // e.g. Linux due to the limitations of inotify.
-    if (options.recursive && !isOSX && !isWindows) {
+    if (options.recursive && !isMacOS && !isWindows) {
       const watcher = new nonNativeWatcher.FSWatcher(options);
       watcher[kFSWatchStart](filename);
       yield* watcher;
@@ -1307,7 +1306,7 @@ module.exports = {
     writeFile,
     appendFile,
     readFile,
-    watch: !isOSX && !isWindows ? _watch : watch,
+    watch: !isMacOS && !isWindows ? _watch : watch,
     constants,
   },
 

lib/internal/fs/rimraf.js

@@ -30,11 +30,10 @@ const {
 } = fs;
 const { sep } = require('path');
 const { setTimeout } = require('timers');
-const { sleep } = require('internal/util');
+const { sleep, isWindows } = require('internal/util');
 const notEmptyErrorCodes = new SafeSet(['ENOTEMPTY', 'EEXIST', 'EPERM']);
 const retryErrorCodes = new SafeSet(
   ['EBUSY', 'EMFILE', 'ENFILE', 'ENOTEMPTY', 'EPERM']);
-const isWindows = process.platform === 'win32';
 const epermHandler = isWindows ? fixWinEPERM : _rmdir;
 const epermHandlerSync = isWindows ? fixWinEPERMSync : _rmdirSync;
 const readdirEncoding = 'buffer';

lib/internal/fs/utils.js

@@ -48,6 +48,7 @@ const {
   kEmptyObject,
   once,
   deprecate,
+  isWindows,
 } = require('internal/util');
 const { toPathIfFileURL } = require('internal/url');
 const {
@@ -144,8 +145,6 @@ const kWriteFileMaxChunkSize = 512 * 1024;
 
 const kMaxUserId = 2 ** 32 - 1;
 
-const isWindows = process.platform === 'win32';
-
 let fs;
 function lazyLoadFs() {
   if (!fs) {

lib/internal/modules/cjs/loader.js

@@ -127,6 +127,7 @@ const {
   kEmptyObject,
   setOwnProperty,
   getLazy,
+  isWindows,
 } = require('internal/util');
 const {
   makeContextifyScript,
@@ -193,8 +194,6 @@ let { startTimer, endTimer } = debugWithTimer('module_timer', (start, end) => {
 const { tracingChannel } = require('diagnostics_channel');
 const onRequire = getLazy(() => tracingChannel('module.require'));
 
-const isWindows = process.platform === 'win32';
-
 const relativeResolveCache = { __proto__: null };
 
 let requireDepth = 0;

lib/internal/modules/esm/translators.js

@@ -52,7 +52,7 @@ const { fileURLToPath, pathToFileURL, URL } = require('internal/url');
 let debug = require('internal/util/debuglog').debuglog('esm', (fn) => {
   debug = fn;
 });
-const { emitExperimentalWarning, kEmptyObject, setOwnProperty } = require('internal/util');
+const { emitExperimentalWarning, kEmptyObject, setOwnProperty, isWindows } = require('internal/util');
 const {
   ERR_UNKNOWN_BUILTIN_MODULE,
   ERR_INVALID_RETURN_PROPERTY_VALUE,
@@ -416,7 +416,6 @@ translators.set('builtin', function builtinStrategy(url) {
 });
 
 // Strategy for loading a JSON file
-const isWindows = process.platform === 'win32';
 translators.set('json', function jsonStrategy(url, source) {
   emitExperimentalWarning('Importing JSON modules');
   assertBufferSource(source, true, 'load');

lib/internal/url.js

@@ -46,6 +46,7 @@ const {
   kEnumerableProperty,
   kEmptyObject,
   SideEffectFreeRegExpPrototypeSymbolReplace,
+  isWindows,
 } = require('internal/util');
 
 const {
@@ -85,9 +86,6 @@ const {
 
 const querystring = require('querystring');
 
-const { platform } = process;
-const isWindows = platform === 'win32';
-
 const bindingUrl = internalBinding('url');
 
 const FORWARD_SLASH = /\//g;
@@ -1471,7 +1469,7 @@ function getPathFromURLWin32(url) {
 
 function getPathFromURLPosix(url) {
   if (url.hostname !== '') {
-    throw new ERR_INVALID_FILE_URL_HOST(platform);
+    throw new ERR_INVALID_FILE_URL_HOST(process.platform);
   }
   const pathname = url.pathname;
   for (let n = 0; n < pathname.length; n++) {

lib/internal/util.js

@@ -71,6 +71,9 @@ const { encodings } = internalBinding('string_decoder');
 
 const noCrypto = !process.versions.openssl;
 
+const isWindows = process.platform === 'win32';
+const isMacOS = process.platform === 'darwin';
+
 const experimentalWarnings = new SafeSet();
 
 const colorRegExp = /\u001b\[\d\d?m/g; // eslint-disable-line no-control-regex
@@ -917,6 +920,8 @@ module.exports = {
   isArrayBufferDetached,
   isError,
   isInsideNodeModules,
+  isMacOS,
+  isWindows,
   join,
   lazyDOMException,
   lazyDOMExceptionClass,

lib/net.js

@@ -115,7 +115,7 @@ const {
 } = require('internal/errors');
 const { isUint8Array } = require('internal/util/types');
 const { queueMicrotask } = require('internal/process/task_queues');
-const { kEmptyObject, guessHandleType, promisify } = require('internal/util');
+const { kEmptyObject, guessHandleType, promisify, isWindows } = require('internal/util');
 const {
   validateAbortSignal,
   validateBoolean,
@@ -142,8 +142,6 @@ const { kTimeout } = require('internal/timers');
 const DEFAULT_IPV4_ADDR = '0.0.0.0';
 const DEFAULT_IPV6_ADDR = '::';
 
-const isWindows = process.platform === 'win32';
-
 const noop = () => {};
 
 const kPerfHooksNetConnectContext = Symbol('kPerfHooksNetConnectContext');

lib/path.js

@@ -50,13 +50,12 @@ const {
 const {
   getLazy,
   emitExperimentalWarning,
+  isWindows,
+  isMacOS,
 } = require('internal/util');
 
 const lazyMinimatch = getLazy(() => require('internal/deps/minimatch/index'));
 
-const platformIsWin32 = (process.platform === 'win32');
-const platformIsOSX = (process.platform === 'darwin');
-
 function isPathSeparator(code) {
   return code === CHAR_FORWARD_SLASH || code === CHAR_BACKWARD_SLASH;
 }
@@ -167,7 +166,7 @@ function glob(path, pattern, windows) {
   validateString(pattern, 'pattern');
   return lazyMinimatch().minimatch(path, pattern, {
     __proto__: null,
-    nocase: platformIsOSX || platformIsWin32,
+    nocase: isMacOS || isWindows,
     windowsPathsNoEscape: true,
     nonegate: true,
     nocomment: true,
@@ -1100,7 +1099,7 @@ const win32 = {
 };
 
 const posixCwd = (() => {
-  if (platformIsWin32) {
+  if (isWindows) {
     // Converts Windows' backslash path separators to POSIX forward slashes
     // and truncates any drive indicator
     const regexp = /\\/g;
@@ -1575,4 +1574,4 @@ posix.posix = win32.posix = posix;
 win32._makeLong = win32.toNamespacedPath;
 posix._makeLong = posix.toNamespacedPath;
 
-module.exports = platformIsWin32 ? win32 : posix;
+module.exports = isWindows ? win32 : posix;