diff options
Diffstat (limited to 'node_modules/graceful-fs')
| -rw-r--r-- | node_modules/graceful-fs/LICENSE | 15 | ||||
| -rw-r--r-- | node_modules/graceful-fs/README.md | 143 | ||||
| -rw-r--r-- | node_modules/graceful-fs/clone.js | 23 | ||||
| -rw-r--r-- | node_modules/graceful-fs/graceful-fs.js | 448 | ||||
| -rw-r--r-- | node_modules/graceful-fs/legacy-streams.js | 118 | ||||
| -rw-r--r-- | node_modules/graceful-fs/package.json | 50 | ||||
| -rw-r--r-- | node_modules/graceful-fs/polyfills.js | 355 |
7 files changed, 0 insertions, 1152 deletions
diff --git a/node_modules/graceful-fs/LICENSE b/node_modules/graceful-fs/LICENSE deleted file mode 100644 index e906a25..0000000 --- a/node_modules/graceful-fs/LICENSE +++ /dev/null @@ -1,15 +0,0 @@ -The ISC License - -Copyright (c) 2011-2022 Isaac Z. Schlueter, Ben Noordhuis, and Contributors - -Permission to use, copy, modify, and/or distribute this software for any -purpose with or without fee is hereby granted, provided that the above -copyright notice and this permission notice appear in all copies. - -THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES -WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF -MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR -ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES -WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN -ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR -IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. diff --git a/node_modules/graceful-fs/README.md b/node_modules/graceful-fs/README.md deleted file mode 100644 index 82d6e4d..0000000 --- a/node_modules/graceful-fs/README.md +++ /dev/null @@ -1,143 +0,0 @@ -# graceful-fs - -graceful-fs functions as a drop-in replacement for the fs module, -making various improvements. - -The improvements are meant to normalize behavior across different -platforms and environments, and to make filesystem access more -resilient to errors. - -## Improvements over [fs module](https://nodejs.org/api/fs.html) - -* Queues up `open` and `readdir` calls, and retries them once - something closes if there is an EMFILE error from too many file - descriptors. -* fixes `lchmod` for Node versions prior to 0.6.2. -* implements `fs.lutimes` if possible. Otherwise it becomes a noop. -* ignores `EINVAL` and `EPERM` errors in `chown`, `fchown` or - `lchown` if the user isn't root. -* makes `lchmod` and `lchown` become noops, if not available. -* retries reading a file if `read` results in EAGAIN error. - -On Windows, it retries renaming a file for up to one second if `EACCESS` -or `EPERM` error occurs, likely because antivirus software has locked -the directory. - -## USAGE - -```javascript -// use just like fs -var fs = require('graceful-fs') - -// now go and do stuff with it... -fs.readFile('some-file-or-whatever', (err, data) => { - // Do stuff here. -}) -``` - -## Sync methods - -This module cannot intercept or handle `EMFILE` or `ENFILE` errors from sync -methods. If you use sync methods which open file descriptors then you are -responsible for dealing with any errors. - -This is a known limitation, not a bug. - -## Global Patching - -If you want to patch the global fs module (or any other fs-like -module) you can do this: - -```javascript -// Make sure to read the caveat below. -var realFs = require('fs') -var gracefulFs = require('graceful-fs') -gracefulFs.gracefulify(realFs) -``` - -This should only ever be done at the top-level application layer, in -order to delay on EMFILE errors from any fs-using dependencies. You -should **not** do this in a library, because it can cause unexpected -delays in other parts of the program. - -## Changes - -This module is fairly stable at this point, and used by a lot of -things. That being said, because it implements a subtle behavior -change in a core part of the node API, even modest changes can be -extremely breaking, and the versioning is thus biased towards -bumping the major when in doubt. - -The main change between major versions has been switching between -providing a fully-patched `fs` module vs monkey-patching the node core -builtin, and the approach by which a non-monkey-patched `fs` was -created. - -The goal is to trade `EMFILE` errors for slower fs operations. So, if -you try to open a zillion files, rather than crashing, `open` -operations will be queued up and wait for something else to `close`. - -There are advantages to each approach. Monkey-patching the fs means -that no `EMFILE` errors can possibly occur anywhere in your -application, because everything is using the same core `fs` module, -which is patched. However, it can also obviously cause undesirable -side-effects, especially if the module is loaded multiple times. - -Implementing a separate-but-identical patched `fs` module is more -surgical (and doesn't run the risk of patching multiple times), but -also imposes the challenge of keeping in sync with the core module. - -The current approach loads the `fs` module, and then creates a -lookalike object that has all the same methods, except a few that are -patched. It is safe to use in all versions of Node from 0.8 through -7.0. - -### v4 - -* Do not monkey-patch the fs module. This module may now be used as a - drop-in dep, and users can opt into monkey-patching the fs builtin - if their app requires it. - -### v3 - -* Monkey-patch fs, because the eval approach no longer works on recent - node. -* fixed possible type-error throw if rename fails on windows -* verify that we *never* get EMFILE errors -* Ignore ENOSYS from chmod/chown -* clarify that graceful-fs must be used as a drop-in - -### v2.1.0 - -* Use eval rather than monkey-patching fs. -* readdir: Always sort the results -* win32: requeue a file if error has an OK status - -### v2.0 - -* A return to monkey patching -* wrap process.cwd - -### v1.1 - -* wrap readFile -* Wrap fs.writeFile. -* readdir protection -* Don't clobber the fs builtin -* Handle fs.read EAGAIN errors by trying again -* Expose the curOpen counter -* No-op lchown/lchmod if not implemented -* fs.rename patch only for win32 -* Patch fs.rename to handle AV software on Windows -* Close #4 Chown should not fail on einval or eperm if non-root -* Fix isaacs/fstream#1 Only wrap fs one time -* Fix #3 Start at 1024 max files, then back off on EMFILE -* lutimes that doens't blow up on Linux -* A full on-rewrite using a queue instead of just swallowing the EMFILE error -* Wrap Read/Write streams as well - -### 1.0 - -* Update engines for node 0.6 -* Be lstat-graceful on Windows -* first diff --git a/node_modules/graceful-fs/clone.js b/node_modules/graceful-fs/clone.js deleted file mode 100644 index dff3cc8..0000000 --- a/node_modules/graceful-fs/clone.js +++ /dev/null @@ -1,23 +0,0 @@ -'use strict' - -module.exports = clone - -var getPrototypeOf = Object.getPrototypeOf || function (obj) { - return obj.__proto__ -} - -function clone (obj) { - if (obj === null || typeof obj !== 'object') - return obj - - if (obj instanceof Object) - var copy = { __proto__: getPrototypeOf(obj) } - else - var copy = Object.create(null) - - Object.getOwnPropertyNames(obj).forEach(function (key) { - Object.defineProperty(copy, key, Object.getOwnPropertyDescriptor(obj, key)) - }) - - return copy -} diff --git a/node_modules/graceful-fs/graceful-fs.js b/node_modules/graceful-fs/graceful-fs.js deleted file mode 100644 index 8d5b89e..0000000 --- a/node_modules/graceful-fs/graceful-fs.js +++ /dev/null @@ -1,448 +0,0 @@ -var fs = require('fs') -var polyfills = require('./polyfills.js') -var legacy = require('./legacy-streams.js') -var clone = require('./clone.js') - -var util = require('util') - -/* istanbul ignore next - node 0.x polyfill */ -var gracefulQueue -var previousSymbol - -/* istanbul ignore else - node 0.x polyfill */ -if (typeof Symbol === 'function' && typeof Symbol.for === 'function') { - gracefulQueue = Symbol.for('graceful-fs.queue') - // This is used in testing by future versions - previousSymbol = Symbol.for('graceful-fs.previous') -} else { - gracefulQueue = '___graceful-fs.queue' - previousSymbol = '___graceful-fs.previous' -} - -function noop () {} - -function publishQueue(context, queue) { - Object.defineProperty(context, gracefulQueue, { - get: function() { - return queue - } - }) -} - -var debug = noop -if (util.debuglog) - debug = util.debuglog('gfs4') -else if (/\bgfs4\b/i.test(process.env.NODE_DEBUG || '')) - debug = function() { - var m = util.format.apply(util, arguments) - m = 'GFS4: ' + m.split(/\n/).join('\nGFS4: ') - console.error(m) - } - -// Once time initialization -if (!fs[gracefulQueue]) { - // This queue can be shared by multiple loaded instances - var queue = global[gracefulQueue] || [] - publishQueue(fs, queue) - - // Patch fs.close/closeSync to shared queue version, because we need - // to retry() whenever a close happens *anywhere* in the program. - // This is essential when multiple graceful-fs instances are - // in play at the same time. - fs.close = (function (fs$close) { - function close (fd, cb) { - return fs$close.call(fs, fd, function (err) { - // This function uses the graceful-fs shared queue - if (!err) { - resetQueue() - } - - if (typeof cb === 'function') - cb.apply(this, arguments) - }) - } - - Object.defineProperty(close, previousSymbol, { - value: fs$close - }) - return close - })(fs.close) - - fs.closeSync = (function (fs$closeSync) { - function closeSync (fd) { - // This function uses the graceful-fs shared queue - fs$closeSync.apply(fs, arguments) - resetQueue() - } - - Object.defineProperty(closeSync, previousSymbol, { - value: fs$closeSync - }) - return closeSync - })(fs.closeSync) - - if (/\bgfs4\b/i.test(process.env.NODE_DEBUG || '')) { - process.on('exit', function() { - debug(fs[gracefulQueue]) - require('assert').equal(fs[gracefulQueue].length, 0) - }) - } -} - -if (!global[gracefulQueue]) { - publishQueue(global, fs[gracefulQueue]); -} - -module.exports = patch(clone(fs)) -if (process.env.TEST_GRACEFUL_FS_GLOBAL_PATCH && !fs.__patched) { - module.exports = patch(fs) - fs.__patched = true; -} - -function patch (fs) { - // Everything that references the open() function needs to be in here - polyfills(fs) - fs.gracefulify = patch - - fs.createReadStream = createReadStream - fs.createWriteStream = createWriteStream - var fs$readFile = fs.readFile - fs.readFile = readFile - function readFile (path, options, cb) { - if (typeof options === 'function') - cb = options, options = null - - return go$readFile(path, options, cb) - - function go$readFile (path, options, cb, startTime) { - return fs$readFile(path, options, function (err) { - if (err && (err.code === 'EMFILE' || err.code === 'ENFILE')) - enqueue([go$readFile, [path, options, cb], err, startTime || Date.now(), Date.now()]) - else { - if (typeof cb === 'function') - cb.apply(this, arguments) - } - }) - } - } - - var fs$writeFile = fs.writeFile - fs.writeFile = writeFile - function writeFile (path, data, options, cb) { - if (typeof options === 'function') - cb = options, options = null - - return go$writeFile(path, data, options, cb) - - function go$writeFile (path, data, options, cb, startTime) { - return fs$writeFile(path, data, options, function (err) { - if (err && (err.code === 'EMFILE' || err.code === 'ENFILE')) - enqueue([go$writeFile, [path, data, options, cb], err, startTime || Date.now(), Date.now()]) - else { - if (typeof cb === 'function') - cb.apply(this, arguments) - } - }) - } - } - - var fs$appendFile = fs.appendFile - if (fs$appendFile) - fs.appendFile = appendFile - function appendFile (path, data, options, cb) { - if (typeof options === 'function') - cb = options, options = null - - return go$appendFile(path, data, options, cb) - - function go$appendFile (path, data, options, cb, startTime) { - return fs$appendFile(path, data, options, function (err) { - if (err && (err.code === 'EMFILE' || err.code === 'ENFILE')) - enqueue([go$appendFile, [path, data, options, cb], err, startTime || Date.now(), Date.now()]) - else { - if (typeof cb === 'function') - cb.apply(this, arguments) - } - }) - } - } - - var fs$copyFile = fs.copyFile - if (fs$copyFile) - fs.copyFile = copyFile - function copyFile (src, dest, flags, cb) { - if (typeof flags === 'function') { - cb = flags - flags = 0 - } - return go$copyFile(src, dest, flags, cb) - - function go$copyFile (src, dest, flags, cb, startTime) { - return fs$copyFile(src, dest, flags, function (err) { - if (err && (err.code === 'EMFILE' || err.code === 'ENFILE')) - enqueue([go$copyFile, [src, dest, flags, cb], err, startTime || Date.now(), Date.now()]) - else { - if (typeof cb === 'function') - cb.apply(this, arguments) - } - }) - } - } - - var fs$readdir = fs.readdir - fs.readdir = readdir - var noReaddirOptionVersions = /^v[0-5]\./ - function readdir (path, options, cb) { - if (typeof options === 'function') - cb = options, options = null - - var go$readdir = noReaddirOptionVersions.test(process.version) - ? function go$readdir (path, options, cb, startTime) { - return fs$readdir(path, fs$readdirCallback( - path, options, cb, startTime - )) - } - : function go$readdir (path, options, cb, startTime) { - return fs$readdir(path, options, fs$readdirCallback( - path, options, cb, startTime - )) - } - - return go$readdir(path, options, cb) - - function fs$readdirCallback (path, options, cb, startTime) { - return function (err, files) { - if (err && (err.code === 'EMFILE' || err.code === 'ENFILE')) - enqueue([ - go$readdir, - [path, options, cb], - err, - startTime || Date.now(), - Date.now() - ]) - else { - if (files && files.sort) - files.sort() - - if (typeof cb === 'function') - cb.call(this, err, files) - } - } - } - } - - if (process.version.substr(0, 4) === 'v0.8') { - var legStreams = legacy(fs) - ReadStream = legStreams.ReadStream - WriteStream = legStreams.WriteStream - } - - var fs$ReadStream = fs.ReadStream - if (fs$ReadStream) { - ReadStream.prototype = Object.create(fs$ReadStream.prototype) - ReadStream.prototype.open = ReadStream$open - } - - var fs$WriteStream = fs.WriteStream - if (fs$WriteStream) { - WriteStream.prototype = Object.create(fs$WriteStream.prototype) - WriteStream.prototype.open = WriteStream$open - } - - Object.defineProperty(fs, 'ReadStream', { - get: function () { - return ReadStream - }, - set: function (val) { - ReadStream = val - }, - enumerable: true, - configurable: true - }) - Object.defineProperty(fs, 'WriteStream', { - get: function () { - return WriteStream - }, - set: function (val) { - WriteStream = val - }, - enumerable: true, - configurable: true - }) - - // legacy names - var FileReadStream = ReadStream - Object.defineProperty(fs, 'FileReadStream', { - get: function () { - return FileReadStream - }, - set: function (val) { - FileReadStream = val - }, - enumerable: true, - configurable: true - }) - var FileWriteStream = WriteStream - Object.defineProperty(fs, 'FileWriteStream', { - get: function () { - return FileWriteStream - }, - set: function (val) { - FileWriteStream = val - }, - enumerable: true, - configurable: true - }) - - function ReadStream (path, options) { - if (this instanceof ReadStream) - return fs$ReadStream.apply(this, arguments), this - else - return ReadStream.apply(Object.create(ReadStream.prototype), arguments) - } - - function ReadStream$open () { - var that = this - open(that.path, that.flags, that.mode, function (err, fd) { - if (err) { - if (that.autoClose) - that.destroy() - - that.emit('error', err) - } else { - that.fd = fd - that.emit('open', fd) - that.read() - } - }) - } - - function WriteStream (path, options) { - if (this instanceof WriteStream) - return fs$WriteStream.apply(this, arguments), this - else - return WriteStream.apply(Object.create(WriteStream.prototype), arguments) - } - - function WriteStream$open () { - var that = this - open(that.path, that.flags, that.mode, function (err, fd) { - if (err) { - that.destroy() - that.emit('error', err) - } else { - that.fd = fd - that.emit('open', fd) - } - }) - } - - function createReadStream (path, options) { - return new fs.ReadStream(path, options) - } - - function createWriteStream (path, options) { - return new fs.WriteStream(path, options) - } - - var fs$open = fs.open - fs.open = open - function open (path, flags, mode, cb) { - if (typeof mode === 'function') - cb = mode, mode = null - - return go$open(path, flags, mode, cb) - - function go$open (path, flags, mode, cb, startTime) { - return fs$open(path, flags, mode, function (err, fd) { - if (err && (err.code === 'EMFILE' || err.code === 'ENFILE')) - enqueue([go$open, [path, flags, mode, cb], err, startTime || Date.now(), Date.now()]) - else { - if (typeof cb === 'function') - cb.apply(this, arguments) - } - }) - } - } - - return fs -} - -function enqueue (elem) { - debug('ENQUEUE', elem[0].name, elem[1]) - fs[gracefulQueue].push(elem) - retry() -} - -// keep track of the timeout between retry() calls -var retryTimer - -// reset the startTime and lastTime to now -// this resets the start of the 60 second overall timeout as well as the -// delay between attempts so that we'll retry these jobs sooner -function resetQueue () { - var now = Date.now() - for (var i = 0; i < fs[gracefulQueue].length; ++i) { - // entries that are only a length of 2 are from an older version, don't - // bother modifying those since they'll be retried anyway. - if (fs[gracefulQueue][i].length > 2) { - fs[gracefulQueue][i][3] = now // startTime - fs[gracefulQueue][i][4] = now // lastTime - } - } - // call retry to make sure we're actively processing the queue - retry() -} - -function retry () { - // clear the timer and remove it to help prevent unintended concurrency - clearTimeout(retryTimer) - retryTimer = undefined - - if (fs[gracefulQueue].length === 0) - return - - var elem = fs[gracefulQueue].shift() - var fn = elem[0] - var args = elem[1] - // these items may be unset if they were added by an older graceful-fs - var err = elem[2] - var startTime = elem[3] - var lastTime = elem[4] - - // if we don't have a startTime we have no way of knowing if we've waited - // long enough, so go ahead and retry this item now - if (startTime === undefined) { - debug('RETRY', fn.name, args) - fn.apply(null, args) - } else if (Date.now() - startTime >= 60000) { - // it's been more than 60 seconds total, bail now - debug('TIMEOUT', fn.name, args) - var cb = args.pop() - if (typeof cb === 'function') - cb.call(null, err) - } else { - // the amount of time between the last attempt and right now - var sinceAttempt = Date.now() - lastTime - // the amount of time between when we first tried, and when we last tried - // rounded up to at least 1 - var sinceStart = Math.max(lastTime - startTime, 1) - // backoff. wait longer than the total time we've been retrying, but only - // up to a maximum of 100ms - var desiredDelay = Math.min(sinceStart * 1.2, 100) - // it's been long enough since the last retry, do it again - if (sinceAttempt >= desiredDelay) { - debug('RETRY', fn.name, args) - fn.apply(null, args.concat([startTime])) - } else { - // if we can't do this job yet, push it to the end of the queue - // and let the next iteration check again - fs[gracefulQueue].push(elem) - } - } - - // schedule our next run if one isn't already scheduled - if (retryTimer === undefined) { - retryTimer = setTimeout(retry, 0) - } -} diff --git a/node_modules/graceful-fs/legacy-streams.js b/node_modules/graceful-fs/legacy-streams.js deleted file mode 100644 index d617b50..0000000 --- a/node_modules/graceful-fs/legacy-streams.js +++ /dev/null @@ -1,118 +0,0 @@ -var Stream = require('stream').Stream - -module.exports = legacy - -function legacy (fs) { - return { - ReadStream: ReadStream, - WriteStream: WriteStream - } - - function ReadStream (path, options) { - if (!(this instanceof ReadStream)) return new ReadStream(path, options); - - Stream.call(this); - - var self = this; - - this.path = path; - this.fd = null; - this.readable = true; - this.paused = false; - - this.flags = 'r'; - this.mode = 438; /*=0666*/ - this.bufferSize = 64 * 1024; - - options = options || {}; - - // Mixin options into this - var keys = Object.keys(options); - for (var index = 0, length = keys.length; index < length; index++) { - var key = keys[index]; - this[key] = options[key]; - } - - if (this.encoding) this.setEncoding(this.encoding); - - if (this.start !== undefined) { - if ('number' !== typeof this.start) { - throw TypeError('start must be a Number'); - } - if (this.end === undefined) { - this.end = Infinity; - } else if ('number' !== typeof this.end) { - throw TypeError('end must be a Number'); - } - - if (this.start > this.end) { - throw new Error('start must be <= end'); - } - - this.pos = this.start; - } - - if (this.fd !== null) { - process.nextTick(function() { - self._read(); - }); - return; - } - - fs.open(this.path, this.flags, this.mode, function (err, fd) { - if (err) { - self.emit('error', err); - self.readable = false; - return; - } - - self.fd = fd; - self.emit('open', fd); - self._read(); - }) - } - - function WriteStream (path, options) { - if (!(this instanceof WriteStream)) return new WriteStream(path, options); - - Stream.call(this); - - this.path = path; - this.fd = null; - this.writable = true; - - this.flags = 'w'; - this.encoding = 'binary'; - this.mode = 438; /*=0666*/ - this.bytesWritten = 0; - - options = options || {}; - - // Mixin options into this - var keys = Object.keys(options); - for (var index = 0, length = keys.length; index < length; index++) { - var key = keys[index]; - this[key] = options[key]; - } - - if (this.start !== undefined) { - if ('number' !== typeof this.start) { - throw TypeError('start must be a Number'); - } - if (this.start < 0) { - throw new Error('start must be >= zero'); - } - - this.pos = this.start; - } - - this.busy = false; - this._queue = []; - - if (this.fd === null) { - this._open = fs.open; - this._queue.push([this._open, this.path, this.flags, this.mode, undefined]); - this.flush(); - } - } -} diff --git a/node_modules/graceful-fs/package.json b/node_modules/graceful-fs/package.json deleted file mode 100644 index 3057856..0000000 --- a/node_modules/graceful-fs/package.json +++ /dev/null @@ -1,50 +0,0 @@ -{ - "name": "graceful-fs", - "description": "A drop-in replacement for fs, making various improvements.", - "version": "4.2.10", - "repository": { - "type": "git", - "url": "https://github.com/isaacs/node-graceful-fs" - }, - "main": "graceful-fs.js", - "directories": { - "test": "test" - }, - "scripts": { - "preversion": "npm test", - "postversion": "npm publish", - "postpublish": "git push origin --follow-tags", - "test": "nyc --silent node test.js | tap -c -", - "posttest": "nyc report" - }, - "keywords": [ - "fs", - "module", - "reading", - "retry", - "retries", - "queue", - "error", - "errors", - "handling", - "EMFILE", - "EAGAIN", - "EINVAL", - "EPERM", - "EACCESS" - ], - "license": "ISC", - "devDependencies": { - "import-fresh": "^2.0.0", - "mkdirp": "^0.5.0", - "rimraf": "^2.2.8", - "tap": "^12.7.0" - }, - "files": [ - "fs.js", - "graceful-fs.js", - "legacy-streams.js", - "polyfills.js", - "clone.js" - ] -} diff --git a/node_modules/graceful-fs/polyfills.js b/node_modules/graceful-fs/polyfills.js deleted file mode 100644 index 46dea36..0000000 --- a/node_modules/graceful-fs/polyfills.js +++ /dev/null @@ -1,355 +0,0 @@ -var constants = require('constants') - -var origCwd = process.cwd -var cwd = null - -var platform = process.env.GRACEFUL_FS_PLATFORM || process.platform - -process.cwd = function() { - if (!cwd) - cwd = origCwd.call(process) - return cwd -} -try { - process.cwd() -} catch (er) {} - -// This check is needed until node.js 12 is required -if (typeof process.chdir === 'function') { - var chdir = process.chdir - process.chdir = function (d) { - cwd = null - chdir.call(process, d) - } - if (Object.setPrototypeOf) Object.setPrototypeOf(process.chdir, chdir) -} - -module.exports = patch - -function patch (fs) { - // (re-)implement some things that are known busted or missing. - - // lchmod, broken prior to 0.6.2 - // back-port the fix here. - if (constants.hasOwnProperty('O_SYMLINK') && - process.version.match(/^v0\.6\.[0-2]|^v0\.5\./)) { - patchLchmod(fs) - } - - // lutimes implementation, or no-op - if (!fs.lutimes) { - patchLutimes(fs) - } - - // https://github.com/isaacs/node-graceful-fs/issues/4 - // Chown should not fail on einval or eperm if non-root. - // It should not fail on enosys ever, as this just indicates - // that a fs doesn't support the intended operation. - - fs.chown = chownFix(fs.chown) - fs.fchown = chownFix(fs.fchown) - fs.lchown = chownFix(fs.lchown) - - fs.chmod = chmodFix(fs.chmod) - fs.fchmod = chmodFix(fs.fchmod) - fs.lchmod = chmodFix(fs.lchmod) - - fs.chownSync = chownFixSync(fs.chownSync) - fs.fchownSync = chownFixSync(fs.fchownSync) - fs.lchownSync = chownFixSync(fs.lchownSync) - - fs.chmodSync = chmodFixSync(fs.chmodSync) - fs.fchmodSync = chmodFixSync(fs.fchmodSync) - fs.lchmodSync = chmodFixSync(fs.lchmodSync) - - fs.stat = statFix(fs.stat) - fs.fstat = statFix(fs.fstat) - fs.lstat = statFix(fs.lstat) - - fs.statSync = statFixSync(fs.statSync) - fs.fstatSync = statFixSync(fs.fstatSync) - fs.lstatSync = statFixSync(fs.lstatSync) - - // if lchmod/lchown do not exist, then make them no-ops - if (fs.chmod && !fs.lchmod) { - fs.lchmod = function (path, mode, cb) { - if (cb) process.nextTick(cb) - } - fs.lchmodSync = function () {} - } - if (fs.chown && !fs.lchown) { - fs.lchown = function (path, uid, gid, cb) { - if (cb) process.nextTick(cb) - } - fs.lchownSync = function () {} - } - - // on Windows, A/V software can lock the directory, causing this - // to fail with an EACCES or EPERM if the directory contains newly - // created files. Try again on failure, for up to 60 seconds. - - // Set the timeout this long because some Windows Anti-Virus, such as Parity - // bit9, may lock files for up to a minute, causing npm package install - // failures. Also, take care to yield the scheduler. Windows scheduling gives - // CPU to a busy looping process, which can cause the program causing the lock - // contention to be starved of CPU by node, so the contention doesn't resolve. - if (platform === "win32") { - fs.rename = typeof fs.rename !== 'function' ? fs.rename - : (function (fs$rename) { - function rename (from, to, cb) { - var start = Date.now() - var backoff = 0; - fs$rename(from, to, function CB (er) { - if (er - && (er.code === "EACCES" || er.code === "EPERM") - && Date.now() - start < 60000) { - setTimeout(function() { - fs.stat(to, function (stater, st) { - if (stater && stater.code === "ENOENT") - fs$rename(from, to, CB); - else - cb(er) - }) - }, backoff) - if (backoff < 100) - backoff += 10; - return; - } - if (cb) cb(er) - }) - } - if (Object.setPrototypeOf) Object.setPrototypeOf(rename, fs$rename) - return rename - })(fs.rename) - } - - // if read() returns EAGAIN, then just try it again. - fs.read = typeof fs.read !== 'function' ? fs.read - : (function (fs$read) { - function read (fd, buffer, offset, length, position, callback_) { - var callback - if (callback_ && typeof callback_ === 'function') { - var eagCounter = 0 - callback = function (er, _, __) { - if (er && er.code === 'EAGAIN' && eagCounter < 10) { - eagCounter ++ - return fs$read.call(fs, fd, buffer, offset, length, position, callback) - } - callback_.apply(this, arguments) - } - } - return fs$read.call(fs, fd, buffer, offset, length, position, callback) - } - - // This ensures `util.promisify` works as it does for native `fs.read`. - if (Object.setPrototypeOf) Object.setPrototypeOf(read, fs$read) - return read - })(fs.read) - - fs.readSync = typeof fs.readSync !== 'function' ? fs.readSync - : (function (fs$readSync) { return function (fd, buffer, offset, length, position) { - var eagCounter = 0 - while (true) { - try { - return fs$readSync.call(fs, fd, buffer, offset, length, position) - } catch (er) { - if (er.code === 'EAGAIN' && eagCounter < 10) { - eagCounter ++ - continue - } - throw er - } - } - }})(fs.readSync) - - function patchLchmod (fs) { - fs.lchmod = function (path, mode, callback) { - fs.open( path - , constants.O_WRONLY | constants.O_SYMLINK - , mode - , function (err, fd) { - if (err) { - if (callback) callback(err) - return - } - // prefer to return the chmod error, if one occurs, - // but still try to close, and report closing errors if they occur. - fs.fchmod(fd, mode, function (err) { - fs.close(fd, function(err2) { - if (callback) callback(err || err2) - }) - }) - }) - } - - fs.lchmodSync = function (path, mode) { - var fd = fs.openSync(path, constants.O_WRONLY | constants.O_SYMLINK, mode) - - // prefer to return the chmod error, if one occurs, - // but still try to close, and report closing errors if they occur. - var threw = true - var ret - try { - ret = fs.fchmodSync(fd, mode) - threw = false - } finally { - if (threw) { - try { - fs.closeSync(fd) - } catch (er) {} - } else { - fs.closeSync(fd) - } - } - return ret - } - } - - function patchLutimes (fs) { - if (constants.hasOwnProperty("O_SYMLINK") && fs.futimes) { - fs.lutimes = function (path, at, mt, cb) { - fs.open(path, constants.O_SYMLINK, function (er, fd) { - if (er) { - if (cb) cb(er) - return - } - fs.futimes(fd, at, mt, function (er) { - fs.close(fd, function (er2) { - if (cb) cb(er || er2) - }) - }) - }) - } - - fs.lutimesSync = function (path, at, mt) { - var fd = fs.openSync(path, constants.O_SYMLINK) - var ret - var threw = true - try { - ret = fs.futimesSync(fd, at, mt) - threw = false - } finally { - if (threw) { - try { - fs.closeSync(fd) - } catch (er) {} - } else { - fs.closeSync(fd) - } - } - return ret - } - - } else if (fs.futimes) { - fs.lutimes = function (_a, _b, _c, cb) { if (cb) process.nextTick(cb) } - fs.lutimesSync = function () {} - } - } - - function chmodFix (orig) { - if (!orig) return orig - return function (target, mode, cb) { - return orig.call(fs, target, mode, function (er) { - if (chownErOk(er)) er = null - if (cb) cb.apply(this, arguments) - }) - } - } - - function chmodFixSync (orig) { - if (!orig) return orig - return function (target, mode) { - try { - return orig.call(fs, target, mode) - } catch (er) { - if (!chownErOk(er)) throw er - } - } - } - - - function chownFix (orig) { - if (!orig) return orig - return function (target, uid, gid, cb) { - return orig.call(fs, target, uid, gid, function (er) { - if (chownErOk(er)) er = null - if (cb) cb.apply(this, arguments) - }) - } - } - - function chownFixSync (orig) { - if (!orig) return orig - return function (target, uid, gid) { - try { - return orig.call(fs, target, uid, gid) - } catch (er) { - if (!chownErOk(er)) throw er - } - } - } - - function statFix (orig) { - if (!orig) return orig - // Older versions of Node erroneously returned signed integers for - // uid + gid. - return function (target, options, cb) { - if (typeof options === 'function') { - cb = options - options = null - } - function callback (er, stats) { - if (stats) { - if (stats.uid < 0) stats.uid += 0x100000000 - if (stats.gid < 0) stats.gid += 0x100000000 - } - if (cb) cb.apply(this, arguments) - } - return options ? orig.call(fs, target, options, callback) - : orig.call(fs, target, callback) - } - } - - function statFixSync (orig) { - if (!orig) return orig - // Older versions of Node erroneously returned signed integers for - // uid + gid. - return function (target, options) { - var stats = options ? orig.call(fs, target, options) - : orig.call(fs, target) - if (stats) { - if (stats.uid < 0) stats.uid += 0x100000000 - if (stats.gid < 0) stats.gid += 0x100000000 - } - return stats; - } - } - - // ENOSYS means that the fs doesn't support the op. Just ignore - // that, because it doesn't matter. - // - // if there's no getuid, or if getuid() is something other - // than 0, and the error is EINVAL or EPERM, then just ignore - // it. - // - // This specific case is a silent failure in cp, install, tar, - // and most other unix tools that manage permissions. - // - // When running as root, or if other types of errors are - // encountered, then it's strict. - function chownErOk (er) { - if (!er) - return true - - if (er.code === "ENOSYS") - return true - - var nonroot = !process.getuid || process.getuid() !== 0 - if (nonroot) { - if (er.code === "EINVAL" || er.code === "EPERM") - return true - } - - return false - } -} |