c4milo/fusejs

Low level fuse bindings for nodejs

FuseJS - Low level bindings for Fuse

Fusejs are a set of NodeJS bindings for Fuse low level API. It allows you to write filesystems, in userspace, using Javascript and NodeJS. Even though most of the Fuse functions are already binded, this module has not been used in production. Use it at your own risk.

How it works

Fuse low level API is inherently asynchronous, therefore, there is no need for libuv thread pool.

FuseJS workflow looks like:

          node example/hello.js /tmp/hello_fs -ofsname=hellofs -orw -d
                                         ↕
                                Google V8 / FuseJS
Flow starts here!                        ↕
	ls -lah /tmp/hello_fs             libfuse
         	  ↕                          ↕
       		glibc                      glibc
Userspace     ↕                          ↕
---------------------------------------------         
Kernel        ↕                          ↕
			  ↕                          ↕
             VFS ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔ ↔  FUSE

             							...
                                        Ext4
                                        NFS
                                        ZFS

Fuse operations supported

The following Fuse low level operations are fully supported:

• init: Initializes filesystem. Called before any other filesystem method

• destroy: Cleans up filesystem. Called on filesystem exit

• lookup: Looks up a directory entry by name and get its attributes.

• forget: Forgets about an inode. The nlookup parameter indicates the number of lookups previously performed on this inode. If the filesystem implements inode lifetimes, it is recommended that inodes acquire a single reference on each lookup, and lose nlookup references on each forget. The filesystem may ignore forget calls, if the inodes don't need to have a limited lifetime. On unmount, it is not guaranteed that all referenced inodes will receive a forget message.

• getattr: Gets file attributes

• setattr: Sets file attributes

• readlink: Reads symbolic link

• mknod: Creates file node. Create a regular file, character device, block device, fifo or socket node.

• mkdir: Creates a directory

• unlink: Removes a file

• rmdir: Removes a directory

• symlink: Creates a symbolic link

• rename: Renames a file

• link: Creates a hard link

• open: Opens a file

• read: Reads data

• write: Writes data

• flush: Flushes data. This is called on each close of an opened file. Since file descriptors can be duplicated (dup, dup2, fork), for one open call there may be many flush calls.Filesystems shouldn't assume that flush will always be called after some writes, or that it will be called at all.

• release: Releases an open file. Release is called when there are no more references to an open file: all file descriptors are closed and all memory mappings are unmapped. For every open call there will be exactly one release call.

• fsync: Synchronizes file contents

• opendir: Opens a directory

• readdir: Reads a directory

• releasedir: Releases an open directory. For every opendir call there will be exactly one releasedir call.

• fsyncdir: Synchronizes directory contents

• statfs: Gets file system statistics

• setxattr: Sets an extended attribute

• getxattr: Gets an extended attribute

• listxattr: Lists extended attribute names

• removexattr: Removes an extended attribute

• access: Checks file access permissions. This will be called for the access() system call. If the 'default_permissions' mount option is given, this method is not called. This method is not called under Linux kernel versions 2.4.x

• create: Creates and opens a file. If the file does not exist, first create it with the specified mode, and then open it. If this method is not implemented or under Linux kernel versions earlier than 2.6.15, the mknod() and open() methods will be called instead.

• getlk: Tests for a POSIX file lock

• setlk: Acquires, modifies or releases a POSIX file lock. If the locking methods are not implemented, the kernel will still allow file locking to work locally. Hence these are only interesting for network filesystems and similar.

• bmap: Map block index within file to block index within device. This makes sense only for block device backed filesystems mounted with the 'blkdev' option

• ioctl (not supported yet): Forever ioctl

• poll (not suppported yet): Polls for IO readiness

Installation

OSX

In order to use FuseJS you need to install any of the Fuse implementations for OSX. OSXFuse is the one that has been used throughout the FuseJS development. Go to http://osxfuse.github.com/ and follow the instructions to get it installed. Additionally, FuseJS toolchain uses pkg-config, you need to have it installed in your system as well, in order to compile FuseJS. It usually should come by default in your operating system, if not, then use your package manager to install it.

• download https://github.com/downloads/osxfuse/osxfuse/OSXFUSE-2.5.2.dmg
• sudo port install pkgconfig (OSX)
• npm install fusejs

Linux

• sudo apt-get install libfuse-dev libck-dev
• npm install fusejs

API Documentation

All the API Documentation can be found at:

• https://github.com/c4milo/fusejs/blob/master/fuse.js.

You can also take a look at the examples in: (TODO!)

• https://github.com/c4milo/fusejs/tree/master/examples

TODO

• Fix signal handling, specially SIGINT. Whenever the filesystem is mounted and the nodejs process receives SIGINT, FUSE signal handlers don't seem to be getting called.
• Filesystem examples
• Tests >_>

License

(The Mozilla Public License v 2.0 License) Copyright 2015 FuseJS Authors. All rights reserved.

This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0. If a copy of the MPL was not distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/.

fusejs's Issues

error installing on OSX

I've tried a few different configurations.
OS tried: Mac OSX 10.7.5, and 10.11.1,
node versions tried: iojs 3.3.1, node 0.12.5, and node 5.0.0.
osxfuse tried: osxfuse 2.7.5 and 2.8.2.
Running pkg-config 0.29

Doesn't seem to matter the configuration.

> [email protected] install /Users/ecchi/Code/node_modules/fusejs
> node-gyp rebuild

  CXX(target) Release/obj.target/fusejs/src/bindings.o
  CXX(target) Release/obj.target/fusejs/src/file_info.o
  CXX(target) Release/obj.target/fusejs/src/filesystem.o
  CXX(target) Release/obj.target/fusejs/src/node_fuse.o
  CXX(target) Release/obj.target/fusejs/src/reply.o
  CXX(target) Release/obj.target/fusejs/src/forget_data.o
../src/forget_data.cc:40:85: error: member access into incomplete type 'struct fuse_forget_data'
                info.GetReturnValue().Set( Nan::New<Integer>(static_cast<uint32_t>(forget_data->fd->ino)));
                                                                                                  ^
../src/forget_data.h:19:20: note: forward declaration of 'NodeFuse::fuse_forget_data'
            struct fuse_forget_data *fd;
                   ^
../src/forget_data.cc:40:87: error: expected ')'
                info.GetReturnValue().Set( Nan::New<Integer>(static_cast<uint32_t>(forget_data->fd->ino)));
                                                                                                    ^
../src/forget_data.cc:40:69: note: to match this '('
                info.GetReturnValue().Set( Nan::New<Integer>(static_cast<uint32_t>(forget_data->fd->ino)));
                                                                                  ^
../src/forget_data.cc:47:86: error: member access into incomplete type 'struct fuse_forget_data'
                info.GetReturnValue().Set( Nan::New<Integer>( static_cast<uint32_t>(forget_data->fd->nlookup)) );
                                                                                                   ^
../src/forget_data.h:19:20: note: forward declaration of 'NodeFuse::fuse_forget_data'
            struct fuse_forget_data *fd;
                   ^
../src/forget_data.cc:47:88: error: expected ')'
                info.GetReturnValue().Set( Nan::New<Integer>( static_cast<uint32_t>(forget_data->fd->nlookup)) );
                                                                                                     ^
../src/forget_data.cc:47:70: note: to match this '('
                info.GetReturnValue().Set( Nan::New<Integer>( static_cast<uint32_t>(forget_data->fd->nlookup)) );
                                                                                   ^
4 errors generated.
make: *** [Release/obj.target/fusejs/src/forget_data.o] Error 1
gyp ERR! build error 
gyp ERR! stack Error: `make` failed with exit code: 2
gyp ERR! stack     at ChildProcess.onExit (/usr/local/lib/node_modules/npm/node_modules/node-gyp/lib/build.js:270:23)
gyp ERR! stack     at emitTwo (events.js:87:13)
gyp ERR! stack     at ChildProcess.emit (events.js:172:7)
gyp ERR! stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:200:12)
gyp ERR! System Darwin 15.0.0
gyp ERR! command "/usr/local/bin/iojs" "/usr/local/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "rebuild"
gyp ERR! cwd /Users/ecchi/Code/node_modules/fusejs
gyp ERR! node -v v3.3.1
gyp ERR! node-gyp -v v3.0.3
gyp ERR! not ok 
npm ERR! Darwin 15.0.0
npm ERR! argv "/usr/local/bin/iojs" "/usr/local/bin/npm" "install" "fusejs"
npm ERR! node v3.3.1
npm ERR! npm  v2.14.3
npm ERR! code ELIFECYCLE

npm ERR! [email protected] install: `node-gyp rebuild`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the [email protected] install script 'node-gyp rebuild'.
npm ERR! This is most likely a problem with the fusejs package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR!     node-gyp rebuild
npm ERR! You can get their info via:
npm ERR!     npm owner ls fusejs
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:
npm ERR!     /Users/ecchi/Code/npm-debug.log

Deprecated usage of node-waf

npm install fusejs failed; because of deprecated node-waf

0 info it worked if it ends with ok
1 verbose cli [ '/Users/steveyang/.nvm/versions/io.js/v1.6.1/bin/iojs',
1 verbose cli   '/Users/steveyang/.nvm/versions/io.js/v1.6.1/bin/npm',
1 verbose cli   'install',
1 verbose cli   'fusejs' ]
2 info using [email protected]
3 info using [email protected]
4 silly cache add args [ 'fusejs', null ]
5 verbose cache add spec fusejs
6 silly cache add parsed spec { raw: 'fusejs',
6 silly cache add   scope: null,
6 silly cache add   name: 'fusejs',
6 silly cache add   rawSpec: '',
6 silly cache add   spec: '*',
6 silly cache add   type: 'range' }
7 verbose addNamed fusejs@*
8 silly addNamed semver.valid null
9 silly addNamed semver.validRange *
10 silly addNameRange { name: 'fusejs', range: '*', hasData: false }
11 silly mapToRegistry name fusejs
12 silly mapToRegistry using default registry
13 silly mapToRegistry registry https://registry.npmjs.org/
14 silly mapToRegistry uri https://registry.npmjs.org/fusejs
15 verbose addNameRange registry:https://registry.npmjs.org/fusejs not in flight; fetching
16 verbose request uri https://registry.npmjs.org/fusejs
17 verbose request no auth needed
18 info attempt registry request try #1 at 19:52:04
19 verbose request id cb6b2cd0e86903a3
20 verbose etag "AF6QL74HZBA57QQUJ6PBZUPAE"
21 http request GET https://registry.npmjs.org/fusejs
22 http 304 https://registry.npmjs.org/fusejs
23 silly get cb [ 304,
23 silly get   { date: 'Mon, 23 Mar 2015 02:52:05 GMT',
23 silly get     server: 'Apache',
23 silly get     via: '1.1 varnish',
23 silly get     'last-modified': 'Mon, 23 Mar 2015 02:52:05 GMT',
23 silly get     'cache-control': 'max-age=60',
23 silly get     etag: '"AF6QL74HZBA57QQUJ6PBZUPAE"',
23 silly get     age: '0',
23 silly get     'x-served-by': 'cache-ord1734-ORD',
23 silly get     'x-cache': 'MISS',
23 silly get     'x-cache-hits': '0',
23 silly get     'x-timer': 'S1427079125.227905,VS0,VE38',
23 silly get     vary: 'Accept',
23 silly get     'content-length': '0',
23 silly get     'keep-alive': 'timeout=10, max=50',
23 silly get     connection: 'Keep-Alive' } ]
24 verbose etag https://registry.npmjs.org/fusejs from cache
25 verbose get saving fusejs to /Users/steveyang/.npm/registry.npmjs.org/fusejs/.cache.json
26 silly addNameRange number 2 { name: 'fusejs', range: '*', hasData: true }
27 silly addNameRange versions [ 'fusejs', [ '0.0.1-dev', '0.0.1' ] ]
28 verbose addNamed [email protected]
29 silly addNamed semver.valid 0.0.1
30 silly addNamed semver.validRange 0.0.1
31 silly cache afterAdd [email protected]
32 verbose afterAdd /Users/steveyang/.npm/fusejs/0.0.1/package/package.json not in flight; writing
33 verbose afterAdd /Users/steveyang/.npm/fusejs/0.0.1/package/package.json written
34 silly install resolved [ { name: 'fusejs',
34 silly install resolved     version: '0.0.1',
34 silly install resolved     author: { name: 'Camilo Aguilar - http://github.com/c4milo' },
34 silly install resolved     email: '[email protected]',
34 silly install resolved     description: 'Low level Fuse bindings for NodeJS.',
34 silly install resolved     repositories: [ [Object] ],
34 silly install resolved     devDependencies: { mocha: '0.14.1', should: '0.6.0' },
34 silly install resolved     scripts: { install: 'make' },
34 silly install resolved     main: './fuse',
34 silly install resolved     _id: '[email protected]',
34 silly install resolved     dist:
34 silly install resolved      { shasum: '1d300bdc015197b4e69988d96578a7c4de6ce1c5',
34 silly install resolved        tarball: 'http://registry.npmjs.org/fusejs/-/fusejs-0.0.1.tgz' },
34 silly install resolved     _npmVersion: '1.1.63',
34 silly install resolved     _npmUser: { name: 'c4milo', email: '[email protected]' },
34 silly install resolved     maintainers: [ [Object] ],
34 silly install resolved     directories: {},
34 silly install resolved     _shasum: '1d300bdc015197b4e69988d96578a7c4de6ce1c5',
34 silly install resolved     _resolved: 'https://registry.npmjs.org/fusejs/-/fusejs-0.0.1.tgz',
34 silly install resolved     _from: 'fusejs@*',
34 silly install resolved     repository: { type: 'git', url: 'http://github.com/c4milo/fusejs.git' },
34 silly install resolved     bugs: { url: 'https://github.com/c4milo/fusejs/issues' },
34 silly install resolved     readme: 'ERROR: No README data found!',
34 silly install resolved     homepage: 'https://github.com/c4milo/fusejs' } ]
35 info install [email protected] into /private/tmp/fe
36 info installOne [email protected]
37 verbose installOne of fusejs to /private/tmp/fe not in flight; installing
38 verbose lock using /Users/steveyang/.npm/_locks/fusejs-33444705d2998d8f.lock for /private/tmp/fe/node_modules/fusejs
39 silly install write writing fusejs 0.0.1 to /private/tmp/fe/node_modules/fusejs
40 silly cache addNamed cb [email protected]
41 verbose unbuild node_modules/fusejs
42 verbose gentlyRm vacuuming /private/tmp/fe/node_modules/fusejs
43 verbose tar unpack /Users/steveyang/.npm/fusejs/0.0.1/package.tgz
44 verbose tar unpacking to /private/tmp/fe/node_modules/fusejs
45 verbose gentlyRm vacuuming /private/tmp/fe/node_modules/fusejs
46 silly gunzTarPerm modes [ '755', '644' ]
47 silly gunzTarPerm extractEntry package.json
48 silly gunzTarPerm extractEntry .npmignore
49 silly gunzTarPerm extractEntry README.md
50 silly gunzTarPerm extractEntry fuse.js
51 silly gunzTarPerm extractEntry examples/loopback.js
52 silly gunzTarPerm extractEntry examples/loopback_main.js
53 silly gunzTarPerm extractEntry Makefile
54 silly gunzTarPerm extractEntry spec/fuse.spec.js
55 silly gunzTarPerm extractEntry src/filesystem.h
56 silly gunzTarPerm extractEntry src/bindings.cc
57 silly gunzTarPerm extractEntry src/file_info.cc
58 silly gunzTarPerm extractEntry src/file_info.h
59 silly gunzTarPerm extractEntry src/filesystem.cc
60 silly gunzTarPerm extractEntry src/bindings.h
61 silly gunzTarPerm extractEntry src/node_fuse.cc
62 silly gunzTarPerm extractEntry src/node_fuse.h
63 silly gunzTarPerm extractEntry src/reply.cc
64 silly gunzTarPerm extractEntry src/reply.h
65 silly gunzTarPerm extractEntry src/wscript
66 silly gunzTarPerm extractEntry wscript
67 info preinstall [email protected]
68 silly install resolved []
69 verbose about to build /private/tmp/fe/node_modules/fusejs
70 info build /private/tmp/fe/node_modules/fusejs
71 verbose linkStuff [ false, false, false, '/private/tmp/fe/node_modules' ]
72 info linkStuff [email protected]
73 verbose linkBins [email protected]
74 verbose linkMans [email protected]
75 verbose rebuildBundles [email protected]
76 info install [email protected]
77 verbose unsafe-perm in lifecycle true
78 info [email protected] Failed to exec install script
79 verbose unlock done using /Users/steveyang/.npm/_locks/fusejs-33444705d2998d8f.lock for /private/tmp/fe/node_modules/fusejs
80 verbose stack Error: [email protected] install: `make`
80 verbose stack Exit status 2
80 verbose stack     at EventEmitter.<anonymous> (/Users/steveyang/.nvm/versions/io.js/v1.6.1/lib/node_modules/npm/lib/utils/lifecycle.js:213:16)
80 verbose stack     at emitTwo (events.js:87:13)
80 verbose stack     at EventEmitter.emit (events.js:169:7)
80 verbose stack     at ChildProcess.<anonymous> (/Users/steveyang/.nvm/versions/io.js/v1.6.1/lib/node_modules/npm/lib/utils/spawn.js:14:12)
80 verbose stack     at emitTwo (events.js:87:13)
80 verbose stack     at ChildProcess.emit (events.js:169:7)
80 verbose stack     at maybeClose (child_process.js:984:16)
80 verbose stack     at Process.ChildProcess._handle.onexit (child_process.js:1057:5)
81 verbose pkgid [email protected]
82 verbose cwd /private/tmp/fe
83 error Darwin 13.4.0
84 error argv "/Users/steveyang/.nvm/versions/io.js/v1.6.1/bin/iojs" "/Users/steveyang/.nvm/versions/io.js/v1.6.1/bin/npm" "install" "fusejs"
85 error node v1.6.1
86 error npm  v2.7.1
87 error code ELIFECYCLE
88 error [email protected] install: `make`
88 error Exit status 2
89 error Failed at the [email protected] install script 'make'.
89 error This is most likely a problem with the fusejs package,
89 error not with npm itself.
89 error Tell the author that this fails on your system:
89 error     make
89 error You can get their info via:
89 error     npm owner ls fusejs
89 error There is likely additional logging output above.
90 verbose exit [ 1, true ]
91 verbose unbuild node_modules/fusejs
92 info preuninstall [email protected]
93 info uninstall [email protected]
94 verbose unbuild rmStuff [email protected] from /private/tmp/fe/node_modules
95 info postuninstall [email protected]
96 verbose gentlyRm vacuuming /private/tmp/fe/node_modules/fusejs
97 silly gentlyRm purging /private/tmp/fe/node_modules/fusejs
98 silly gentlyRm quitting because other entries in /private/tmp/fe/node_modules

Issue installing FuseJS

With:

node -v
v0.12.7

uname -a
Darwin Mbp 12.6.0 Darwin Kernel Version 12.6.0: Wed Mar 18 16:23:48 PDT 2015; root:xnu-2050.48.19~1/RELEASE_X86_64 x86_64

npm install fusejs -S
\
> [email protected] install /www/core/node_modules/fusejs
> node-gyp rebuild

  CXX(target) Release/obj.target/fusejs/src/bindings.o
  CXX(target) Release/obj.target/fusejs/src/file_info.o
  CXX(target) Release/obj.target/fusejs/src/filesystem.o
../src/filesystem.cc:254:18: error: no member named 'forget_multi' in 'fuse_lowlevel_ops'
        fuse_ops.forget_multi = FileSystem::MultiForget;
        ~~~~~~~~ ^
1 error generated.
make: *** [Release/obj.target/fusejs/src/filesystem.o] Error 1

Any ideas why?

Replying large files

I see you need to reply to read methods with a buffer containing all the data, won't that fail for files that are over 1.7GiB?

bind flags to objects

Returned scores for certain search terms are equal when differences exist beyond the length of the search query.

Consider this very basic example to illustrate what I mean.

List of Items to search through:

let list = [
"mr. h",
"mr. p",
"mr. m"
];

Search Term:
let searchTerm = "mr.h"

Notice that the search term is almost equivalent to the first result- the only difference is the missing space after the ".".

Running the search produces the following results:

const options = {
  includeScore: false,
  threshold: 0.7,
};

const fuse = new Fuse(list, options)
const result = fuse.search(searchTerm)

[
{
"item": "mr. h",
"refIndex": 0,
"score": 0.37526977437859277
},
{
"item": "mr. p",
"refIndex": 1,
"score": 0.37526977437859277
},
{
"item": "mr. m",
"refIndex": 2,
"score": 0.37526977437859277
}
]

I would expect the first item "mr. h" to have a higher score than the other 2, since it has only 1 character difference compared to the search query, while the others have two differences. However, all 3 scores are equal.

This behaviour only seems to be present when the list items are longer than the search query, and are identical up to the length of the search query, but have differences beyond that.

Is this expected behaviour? If so, could you explain why that's the case?

List projects using fusejs in README.

This would help newcomers to get an idea of where it is being used any how it is used.

write loopback filesystem

It should be also a reference implementation of file systems in nodejs using the low level API.

Some links:
http://code.google.com/p/macfuse/wiki/REFERENCE_FILE_SYSTEM
https://github.com/osxfuse/filesystems/blob/master/filesystems-c/loopback/loopback.c

move wscript to gyp

https://github.com/TooTallNate/node-gyp

write specs against loopback filesystem

Set accessors for read/write properties in fuse_conn_info object

Eventually remove ck dependency in favor of our own circular buffer implementation.

It could also be extracting that specific part of CK and statically compile it with the rest of the addon, as opposed to having the whole library as a dependency. Any thoughts @thejinx0r?

Fix Gitter sag in README

The second line of the readme has a button to the Gutter chat, but the svg isn't loading. The issue is the space in the link to the svg. The correct second line is: [![Gitter](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/c4milo/fusejs?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
The space needs to be replaced with a %20 in the https://badges.gitter.im/Join Chat.svg link.

Fuzzy searching a tree of items

I need to fuzzy search a tree of items. Each item may have some children (item.children), and each child could be an item itself. It can be a recursive thing.

Is there a way to use fusejs for that?

Big refactoring has to happen in order to continue supporting newer node.js versions

For more information, please refer to:
https://groups.google.com/forum/#!topic/v8-users/6kSAbnUb-rQ

Set accessors for property fh in file info object.

Windows support

Does this library support windows?

nanosecond resolution for times

QUESTION: Forking?

Hi c4milo,

I liked the idea of using the fuse low-level api (especially with the asynchronous api) with nodeJS.
The code you had written was not working, and there are several issues suggesting a rewrite is needed.

I've made some minor (or maybe major?) modifications to it and it now works. If anyone is interested, have a look at https://github.com/thejinx0r/fusejs/tree/dev. The performance is great because fuse can run in multithreaded mode and the developer does not need to worry about that on the JS side!

I was thinking of releasing the changes back to the public, and I was wondering how should I proceed?
Should I create a new package and acknowledge your work, or create a pull request and merge the code in?

I haven't enabled all the functions yet, but it should be straightforward to get everything to work.

Eric

Add TravisCI or CircleCI integration

Define fuse_conn_info.capable flags constants in javascript Fuse Object.

https://github.com/osxfuse/fuse/blob/master/include/fuse_common.h#L129

Request: docs

Please, for the love of all things holy update the docs so that I don't have to go reading through .cc files or your gdrive implementation to figure out how this works!!!

Seriously, awesome work, thanks :) Docs would be nice though 😸

I think a great first step would be just the reply object.

Armv7 - Segmentation Fault

The MPSC queue is not thread safe on armv7 which either leads to a segmentation fault or a corrupted ring buffer.

Build errors on newest git release

@thejinx0r -- I realize this isn't released, but since you're the only one actively contributing to this project, I'm hoping you can help. I get a slew of build errors with your most recent git push, all about template name mis-matches:

 CXX(target) Release/obj.target/fusejs/src/bindings.o
../src/bindings.cc:7:5: error: no template named 'NanPersistent'; did you mean 'Persistent'?
    NanPersistent<FunctionTemplate> Fuse::constructor_template;
    ^~~~~~~~~~~~~
    Persistent
/Users/mark/.node-gyp/2.4.0/deps/v8/include/v8.h:616:45: note: 'Persistent' declared here
  template<class F1, class F2> friend class Persistent;
                                            ^
../src/bindings.cc:10:12: error: no template named 'NanPersistent'; did you mean 'Persistent'?
    static NanPersistent<String> filesystem_sym;
           ^~~~~~~~~~~~~
           Persistent
/Users/mark/.node-gyp/2.4.0/deps/v8/include/v8.h:616:45: note: 'Persistent' declared here
  template<class F1, class F2> friend class Persistent;
                                            ^
../src/bindings.cc:11:12: error: no template named 'NanPersistent'; did you mean 'Persistent'?
    static NanPersistent<String> options_sym;
           ^~~~~~~~~~~~~
           Persistent

... another 20 errors