🐛 Update: Added support for the 'find' command in settings.local.json. Enhanced logging for various modules, including initialization and performance metrics. Improved SQLite database optimization and ensured better tracking of user interactions and system processes. 📚
This commit is contained in:
355
network-visualization/node_modules/graceful-fs/polyfills.js
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355
network-visualization/node_modules/graceful-fs/polyfills.js
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var constants = require('constants')
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var origCwd = process.cwd
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var cwd = null
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var platform = process.env.GRACEFUL_FS_PLATFORM || process.platform
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process.cwd = function() {
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if (!cwd)
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cwd = origCwd.call(process)
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return cwd
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}
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try {
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process.cwd()
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} catch (er) {}
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// This check is needed until node.js 12 is required
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if (typeof process.chdir === 'function') {
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var chdir = process.chdir
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process.chdir = function (d) {
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cwd = null
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chdir.call(process, d)
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}
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if (Object.setPrototypeOf) Object.setPrototypeOf(process.chdir, chdir)
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}
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module.exports = patch
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function patch (fs) {
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// (re-)implement some things that are known busted or missing.
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// lchmod, broken prior to 0.6.2
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// back-port the fix here.
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if (constants.hasOwnProperty('O_SYMLINK') &&
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process.version.match(/^v0\.6\.[0-2]|^v0\.5\./)) {
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patchLchmod(fs)
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}
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// lutimes implementation, or no-op
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if (!fs.lutimes) {
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patchLutimes(fs)
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}
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// https://github.com/isaacs/node-graceful-fs/issues/4
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// Chown should not fail on einval or eperm if non-root.
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// It should not fail on enosys ever, as this just indicates
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// that a fs doesn't support the intended operation.
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fs.chown = chownFix(fs.chown)
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fs.fchown = chownFix(fs.fchown)
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fs.lchown = chownFix(fs.lchown)
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fs.chmod = chmodFix(fs.chmod)
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fs.fchmod = chmodFix(fs.fchmod)
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fs.lchmod = chmodFix(fs.lchmod)
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fs.chownSync = chownFixSync(fs.chownSync)
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fs.fchownSync = chownFixSync(fs.fchownSync)
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fs.lchownSync = chownFixSync(fs.lchownSync)
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fs.chmodSync = chmodFixSync(fs.chmodSync)
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fs.fchmodSync = chmodFixSync(fs.fchmodSync)
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fs.lchmodSync = chmodFixSync(fs.lchmodSync)
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fs.stat = statFix(fs.stat)
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fs.fstat = statFix(fs.fstat)
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fs.lstat = statFix(fs.lstat)
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fs.statSync = statFixSync(fs.statSync)
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fs.fstatSync = statFixSync(fs.fstatSync)
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fs.lstatSync = statFixSync(fs.lstatSync)
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// if lchmod/lchown do not exist, then make them no-ops
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if (fs.chmod && !fs.lchmod) {
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fs.lchmod = function (path, mode, cb) {
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if (cb) process.nextTick(cb)
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}
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fs.lchmodSync = function () {}
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}
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if (fs.chown && !fs.lchown) {
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fs.lchown = function (path, uid, gid, cb) {
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if (cb) process.nextTick(cb)
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}
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fs.lchownSync = function () {}
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}
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// on Windows, A/V software can lock the directory, causing this
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// to fail with an EACCES or EPERM if the directory contains newly
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// created files. Try again on failure, for up to 60 seconds.
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// Set the timeout this long because some Windows Anti-Virus, such as Parity
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// bit9, may lock files for up to a minute, causing npm package install
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// failures. Also, take care to yield the scheduler. Windows scheduling gives
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// CPU to a busy looping process, which can cause the program causing the lock
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// contention to be starved of CPU by node, so the contention doesn't resolve.
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if (platform === "win32") {
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fs.rename = typeof fs.rename !== 'function' ? fs.rename
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: (function (fs$rename) {
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function rename (from, to, cb) {
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var start = Date.now()
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var backoff = 0;
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fs$rename(from, to, function CB (er) {
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if (er
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&& (er.code === "EACCES" || er.code === "EPERM" || er.code === "EBUSY")
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&& Date.now() - start < 60000) {
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setTimeout(function() {
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fs.stat(to, function (stater, st) {
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if (stater && stater.code === "ENOENT")
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fs$rename(from, to, CB);
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else
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cb(er)
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})
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}, backoff)
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if (backoff < 100)
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backoff += 10;
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return;
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}
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if (cb) cb(er)
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})
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}
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if (Object.setPrototypeOf) Object.setPrototypeOf(rename, fs$rename)
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return rename
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})(fs.rename)
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}
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// if read() returns EAGAIN, then just try it again.
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fs.read = typeof fs.read !== 'function' ? fs.read
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: (function (fs$read) {
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function read (fd, buffer, offset, length, position, callback_) {
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var callback
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if (callback_ && typeof callback_ === 'function') {
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var eagCounter = 0
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callback = function (er, _, __) {
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if (er && er.code === 'EAGAIN' && eagCounter < 10) {
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eagCounter ++
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return fs$read.call(fs, fd, buffer, offset, length, position, callback)
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}
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callback_.apply(this, arguments)
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}
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}
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return fs$read.call(fs, fd, buffer, offset, length, position, callback)
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}
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// This ensures `util.promisify` works as it does for native `fs.read`.
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if (Object.setPrototypeOf) Object.setPrototypeOf(read, fs$read)
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return read
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})(fs.read)
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fs.readSync = typeof fs.readSync !== 'function' ? fs.readSync
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: (function (fs$readSync) { return function (fd, buffer, offset, length, position) {
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var eagCounter = 0
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while (true) {
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try {
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return fs$readSync.call(fs, fd, buffer, offset, length, position)
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} catch (er) {
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if (er.code === 'EAGAIN' && eagCounter < 10) {
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eagCounter ++
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continue
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}
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throw er
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}
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}
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}})(fs.readSync)
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function patchLchmod (fs) {
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fs.lchmod = function (path, mode, callback) {
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fs.open( path
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, constants.O_WRONLY | constants.O_SYMLINK
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, mode
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, function (err, fd) {
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if (err) {
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if (callback) callback(err)
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return
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}
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// prefer to return the chmod error, if one occurs,
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// but still try to close, and report closing errors if they occur.
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fs.fchmod(fd, mode, function (err) {
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fs.close(fd, function(err2) {
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if (callback) callback(err || err2)
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})
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})
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})
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}
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fs.lchmodSync = function (path, mode) {
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var fd = fs.openSync(path, constants.O_WRONLY | constants.O_SYMLINK, mode)
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// prefer to return the chmod error, if one occurs,
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// but still try to close, and report closing errors if they occur.
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var threw = true
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var ret
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try {
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ret = fs.fchmodSync(fd, mode)
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threw = false
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} finally {
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if (threw) {
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try {
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fs.closeSync(fd)
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} catch (er) {}
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} else {
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fs.closeSync(fd)
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}
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}
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return ret
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}
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}
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function patchLutimes (fs) {
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if (constants.hasOwnProperty("O_SYMLINK") && fs.futimes) {
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fs.lutimes = function (path, at, mt, cb) {
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fs.open(path, constants.O_SYMLINK, function (er, fd) {
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if (er) {
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if (cb) cb(er)
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return
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}
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fs.futimes(fd, at, mt, function (er) {
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fs.close(fd, function (er2) {
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if (cb) cb(er || er2)
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})
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})
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})
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}
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fs.lutimesSync = function (path, at, mt) {
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var fd = fs.openSync(path, constants.O_SYMLINK)
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var ret
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var threw = true
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try {
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ret = fs.futimesSync(fd, at, mt)
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threw = false
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} finally {
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if (threw) {
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try {
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fs.closeSync(fd)
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} catch (er) {}
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} else {
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fs.closeSync(fd)
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}
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}
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return ret
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}
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} else if (fs.futimes) {
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fs.lutimes = function (_a, _b, _c, cb) { if (cb) process.nextTick(cb) }
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fs.lutimesSync = function () {}
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}
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}
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function chmodFix (orig) {
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if (!orig) return orig
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return function (target, mode, cb) {
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return orig.call(fs, target, mode, function (er) {
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if (chownErOk(er)) er = null
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if (cb) cb.apply(this, arguments)
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})
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}
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}
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function chmodFixSync (orig) {
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if (!orig) return orig
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return function (target, mode) {
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try {
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return orig.call(fs, target, mode)
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} catch (er) {
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if (!chownErOk(er)) throw er
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}
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}
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}
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function chownFix (orig) {
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if (!orig) return orig
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return function (target, uid, gid, cb) {
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return orig.call(fs, target, uid, gid, function (er) {
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if (chownErOk(er)) er = null
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if (cb) cb.apply(this, arguments)
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})
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}
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}
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function chownFixSync (orig) {
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if (!orig) return orig
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return function (target, uid, gid) {
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try {
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return orig.call(fs, target, uid, gid)
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} catch (er) {
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if (!chownErOk(er)) throw er
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}
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}
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}
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function statFix (orig) {
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if (!orig) return orig
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// Older versions of Node erroneously returned signed integers for
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// uid + gid.
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return function (target, options, cb) {
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if (typeof options === 'function') {
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cb = options
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options = null
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}
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function callback (er, stats) {
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if (stats) {
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if (stats.uid < 0) stats.uid += 0x100000000
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if (stats.gid < 0) stats.gid += 0x100000000
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}
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if (cb) cb.apply(this, arguments)
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}
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return options ? orig.call(fs, target, options, callback)
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: orig.call(fs, target, callback)
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}
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}
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function statFixSync (orig) {
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if (!orig) return orig
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// Older versions of Node erroneously returned signed integers for
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// uid + gid.
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return function (target, options) {
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var stats = options ? orig.call(fs, target, options)
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: orig.call(fs, target)
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if (stats) {
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if (stats.uid < 0) stats.uid += 0x100000000
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if (stats.gid < 0) stats.gid += 0x100000000
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}
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return stats;
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}
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}
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// ENOSYS means that the fs doesn't support the op. Just ignore
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// that, because it doesn't matter.
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//
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// if there's no getuid, or if getuid() is something other
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// than 0, and the error is EINVAL or EPERM, then just ignore
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// it.
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//
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// This specific case is a silent failure in cp, install, tar,
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// and most other unix tools that manage permissions.
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//
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// When running as root, or if other types of errors are
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// encountered, then it's strict.
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function chownErOk (er) {
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if (!er)
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return true
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if (er.code === "ENOSYS")
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return true
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var nonroot = !process.getuid || process.getuid() !== 0
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if (nonroot) {
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if (er.code === "EINVAL" || er.code === "EPERM")
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return true
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}
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return false
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}
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}
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