build: Add some required modules for node

1 files changed, 279 insertions, 0 deletions

diff --git a/node_modules/graceful-fs/graceful-fs.js b/node_modules/graceful-fs/graceful-fs.js
new file mode 100644
index 0000000..ac20675
--- /dev/null
+++ b/node_modules/graceful-fs/graceful-fs.js
@@ -0,0 +1,279 @@
+var fs = require('fs')
+var polyfills = require('./polyfills.js')
+var legacy = require('./legacy-streams.js')
+var clone = require('./clone.js')
+
+var queue = []
+
+var util = require('util')
+
+function noop () {}
+
+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)
+  }
+
+if (/\bgfs4\b/i.test(process.env.NODE_DEBUG || '')) {
+  process.on('exit', function() {
+    debug(queue)
+    require('assert').equal(queue.length, 0)
+  })
+}
+
+module.exports = patch(clone(fs))
+if (process.env.TEST_GRACEFUL_FS_GLOBAL_PATCH && !fs.__patched) {
+    module.exports = patch(fs)
+    fs.__patched = true;
+}
+
+// Always patch fs.close/closeSync, because we want 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.
+module.exports.close = (function (fs$close) { return function (fd, cb) {
+  return fs$close.call(fs, fd, function (err) {
+    if (!err)
+      retry()
+
+    if (typeof cb === 'function')
+      cb.apply(this, arguments)
+  })
+}})(fs.close)
+
+module.exports.closeSync = (function (fs$closeSync) { return function (fd) {
+  // Note that graceful-fs also retries when fs.closeSync() fails.
+  // Looks like a bug to me, although it's probably a harmless one.
+  var rval = fs$closeSync.apply(fs, arguments)
+  retry()
+  return rval
+}})(fs.closeSync)
+
+// Only patch fs once, otherwise we'll run into a memory leak if
+// graceful-fs is loaded multiple times, such as in test environments that
+// reset the loaded modules between tests.
+// We look for the string `graceful-fs` from the comment above. This
+// way we are not adding any extra properties and it will detect if older
+// versions of graceful-fs are installed.
+if (!/\bgraceful-fs\b/.test(fs.closeSync.toString())) {
+  fs.closeSync = module.exports.closeSync;
+  fs.close = module.exports.close;
+}
+
+function patch (fs) {
+  // Everything that references the open() function needs to be in here
+  polyfills(fs)
+  fs.gracefulify = patch
+  fs.FileReadStream = ReadStream;  // Legacy name.
+  fs.FileWriteStream = WriteStream;  // Legacy name.
+  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$readFile (path, options, cb) {
+      return fs$readFile(path, options, function (err) {
+        if (err && (err.code === 'EMFILE' || err.code === 'ENFILE'))
+          enqueue([go$readFile, [path, options, cb]])
+        else {
+          if (typeof cb === 'function')
+            cb.apply(this, arguments)
+          retry()
+        }
+      })
+    }
+  }
+
+  var fs$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) {
+      return fs$writeFile(path, data, options, function (err) {
+        if (err && (err.code === 'EMFILE' || err.code === 'ENFILE'))
+          enqueue([go$writeFile, [path, data, options, cb]])
+        else {
+          if (typeof cb === 'function')
+            cb.apply(this, arguments)
+          retry()
+        }
+      })
+    }
+  }
+
+  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) {
+      return fs$appendFile(path, data, options, function (err) {
+        if (err && (err.code === 'EMFILE' || err.code === 'ENFILE'))
+          enqueue([go$appendFile, [path, data, options, cb]])
+        else {
+          if (typeof cb === 'function')
+            cb.apply(this, arguments)
+          retry()
+        }
+      })
+    }
+  }
+
+  var fs$readdir = fs.readdir
+  fs.readdir = readdir
+  function readdir (path, options, cb) {
+    var args = [path]
+    if (typeof options !== 'function') {
+      args.push(options)
+    } else {
+      cb = options
+    }
+    args.push(go$readdir$cb)
+
+    return go$readdir(args)
+
+    function go$readdir$cb (err, files) {
+      if (files && files.sort)
+        files.sort()
+
+      if (err && (err.code === 'EMFILE' || err.code === 'ENFILE'))
+        enqueue([go$readdir, [args]])
+
+      else {
+        if (typeof cb === 'function')
+          cb.apply(this, arguments)
+        retry()
+      }
+    }
+  }
+
+  function go$readdir (args) {
+    return fs$readdir.apply(fs, args)
+  }
+
+  if (process.version.substr(0, 4) === 'v0.8') {
+    var legStreams = legacy(fs)
+    ReadStream = legStreams.ReadStream
+    WriteStream = legStreams.WriteStream
+  }
+
+  var fs$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$open
+  }
+
+  fs.ReadStream = ReadStream
+  fs.WriteStream = WriteStream
+
+  function ReadStream (path, options) {
+    if (this instanceof ReadStream)
+      return fs$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$open () {
+    var that = this
+    open(that.path, that.flags, that.mode, function (err, fd) {
+      if (err) {
+        that.destroy()
+        that.emit('error', err)
+      } else {
+        that.fd = fd
+        that.emit('open', fd)
+      }
+    })
+  }
+
+  function createReadStream (path, options) {
+    return new ReadStream(path, options)
+  }
+
+  function createWriteStream (path, options) {
+    return new WriteStream(path, options)
+  }
+
+  var fs$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) {
+      return fs$open(path, flags, mode, function (err, fd) {
+        if (err && (err.code === 'EMFILE' || err.code === 'ENFILE'))
+          enqueue([go$open, [path, flags, mode, cb]])
+        else {
+          if (typeof cb === 'function')
+            cb.apply(this, arguments)
+          retry()
+        }
+      })
+    }
+  }
+
+  return fs
+}
+
+function enqueue (elem) {
+  debug('ENQUEUE', elem[0].name, elem[1])
+  queue.push(elem)
+}
+
+function retry () {
+  var elem = queue.shift()
+  if (elem) {
+    debug('RETRY', elem[0].name, elem[1])
+    elem[0].apply(null, elem[1])
+  }
+}