1 files changed, 254 insertions, 0 deletions
diff --git a/deps/npm/node_modules/fs-write-stream-atomic/node_modules/graceful-fs/polyfills.js b/deps/npm/node_modules/fs-write-stream-atomic/node_modules/graceful-fs/polyfills.js
new file mode 100644
index 000000000..8ac5006e2
--- /dev/null
+++ b/deps/npm/node_modules/fs-write-stream-atomic/node_modules/graceful-fs/polyfills.js
@@ -0,0 +1,254 @@
+var fs = require('./fs.js')
+var constants = require('constants')
+
+var origCwd = process.cwd
+var cwd = null
+process.cwd = function() {
+  if (!cwd)
+    cwd = origCwd.call(process)
+  return cwd
+}
+var chdir = process.chdir
+process.chdir = function(d) {
+  cwd = null
+  chdir.call(process, d)
+}
+
+// (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\./)) {
+  fs.lchmod = function (path, mode, callback) {
+    callback = callback || noop
+    fs.open( path
+           , constants.O_WRONLY | constants.O_SYMLINK
+           , mode
+           , function (err, fd) {
+      if (err) {
+        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) {
+          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 err, err2
+    try {
+      var ret = fs.fchmodSync(fd, mode)
+    } catch (er) {
+      err = er
+    }
+    try {
+      fs.closeSync(fd)
+    } catch (er) {
+      err2 = er
+    }
+    if (err || err2) throw (err || err2)
+    return ret
+  }
+}
+
+
+// lutimes implementation, or no-op
+if (!fs.lutimes) {
+  if (constants.hasOwnProperty("O_SYMLINK")) {
+    fs.lutimes = function (path, at, mt, cb) {
+      fs.open(path, constants.O_SYMLINK, function (er, fd) {
+        cb = cb || noop
+        if (er) return cb(er)
+        fs.futimes(fd, at, mt, function (er) {
+          fs.close(fd, function (er2) {
+            return cb(er || er2)
+          })
+        })
+      })
+    }
+
+    fs.lutimesSync = function (path, at, mt) {
+      var fd = fs.openSync(path, constants.O_SYMLINK)
+        , err
+        , err2
+        , ret
+
+      try {
+        var ret = fs.futimesSync(fd, at, mt)
+      } catch (er) {
+        err = er
+      }
+      try {
+        fs.closeSync(fd)
+      } catch (er) {
+        err2 = er
+      }
+      if (err || err2) throw (err || err2)
+      return ret
+    }
+
+  } else if (fs.utimensat && constants.hasOwnProperty("AT_SYMLINK_NOFOLLOW")) {
+    // maybe utimensat will be bound soonish?
+    fs.lutimes = function (path, at, mt, cb) {
+      fs.utimensat(path, at, mt, constants.AT_SYMLINK_NOFOLLOW, cb)
+    }
+
+    fs.lutimesSync = function (path, at, mt) {
+      return fs.utimensatSync(path, at, mt, constants.AT_SYMLINK_NOFOLLOW)
+    }
+
+  } else {
+    fs.lutimes = function (_a, _b, _c, cb) { process.nextTick(cb) }
+    fs.lutimesSync = function () {}
+  }
+}
+
+
+// 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 = chownFix(fs.chmod)
+fs.fchmod = chownFix(fs.fchmod)
+fs.lchmod = chownFix(fs.lchmod)
+
+fs.chownSync = chownFixSync(fs.chownSync)
+fs.fchownSync = chownFixSync(fs.fchownSync)
+fs.lchownSync = chownFixSync(fs.lchownSync)
+
+fs.chmodSync = chownFix(fs.chmodSync)
+fs.fchmodSync = chownFix(fs.fchmodSync)
+fs.lchmodSync = chownFix(fs.lchmodSync)
+
+function chownFix (orig) {
+  if (!orig) return orig
+  return function (target, uid, gid, cb) {
+    return orig.call(fs, target, uid, gid, function (er, res) {
+      if (chownErOk(er)) er = null
+      cb(er, res)
+    })
+  }
+}
+
+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
+    }
+  }
+}
+
+// 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
+}
+
+
+// if lchmod/lchown do not exist, then make them no-ops
+if (!fs.lchmod) {
+  fs.lchmod = function (path, mode, cb) {
+    process.nextTick(cb)
+  }
+  fs.lchmodSync = function () {}
+}
+if (!fs.lchown) {
+  fs.lchown = function (path, uid, gid, 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 1 second.
+if (process.platform === "win32") {
+  var rename_ = fs.rename
+  fs.rename = function rename (from, to, cb) {
+    var start = Date.now()
+    rename_(from, to, function CB (er) {
+      if (er
+          && (er.code === "EACCES" || er.code === "EPERM")
+          && Date.now() - start < 1000) {
+        return rename_(from, to, CB)
+      }
+      if(cb) cb(er)
+    })
+  }
+}
+
+
+// if read() returns EAGAIN, then just try it again.
+var read = fs.read
+fs.read = function (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 read.call(fs, fd, buffer, offset, length, position, callback)
+      }
+      callback_.apply(this, arguments)
+    }
+  }
+  return read.call(fs, fd, buffer, offset, length, position, callback)
+}
+
+var readSync = fs.readSync
+fs.readSync = function (fd, buffer, offset, length, position) {
+  var eagCounter = 0
+  while (true) {
+    try {
+      return readSync.call(fs, fd, buffer, offset, length, position)
+    } catch (er) {
+      if (er.code === 'EAGAIN' && eagCounter < 10) {
+        eagCounter ++
+        continue
+      }
+      throw er
+    }
+  }
+}