Overview
========
This is a Chrome App that extends the built in File Manager to be able to
support connecting to SMB file shares.

The NaCl port is currently patched from Samba 4.1.16.

Setup
=====

1) Download the NaCl SDK and unzip it as directed.
      https://developer.chrome.com/native-client/sdk/download

2) Update the SDK and get the canary version (at least until the required code
gets to the stable branch).
      cd nacl_sdk
      ./naclsdk update
      ./naclsdk update pepper_canary
      export NACL_SDK_ROOT=/path/to/nacl_sdk/pepper_canary

3) Get depot_tools and gclient.
      git clone https://chromium.googlesource.com/chromium/tools/depot_tools.git

4) Put depot_tools on the path (or put it in your .bachrc)
      https://www.chromium.org/developers/how-tos/install-depot-tools

5) Get WebPorts (aka NaCl Ports).
      mkdir webports
      cd webports
      gclient config --name=src https://chromium.googlesource.com/webports.git
      gclient sync

6) Install a missing dependency from the NaCl SDK.
      sudo apt-get install libglib2.0-0:i386

7) Build Samba.
      cd webports/src
      ./make_all.sh samba F=1 V=1

8) Get the App code.
      git clone https://github.com/GoogleChrome/chromeos_network_file_share

9) Install bower.
      https://syntaxsugar.github.io/posts/2014/05/how-to-install-bower-on-ubuntu-1404-lts/

      sudo apt-get install nodejs
      sudo ln -s /usr/bin/nodejs /usr/bin/node
      sudo apt-get install npm
      sudo npm install -g bower

10) Get the bower dependencies.
      cd chromeos_network_file_share/app
      bower install

11) Install Vulcanize and Crisper.
      sudo npm install -g vulcanize
      sudo npm install -g crisper

12) Setup build environment
      # Set NACL_SDK_ROOT if not done above
      export TOOLCHAIN=glibc
      export NACL_ARCH=x86_64 # or arm
      # TODO: Figure out how to build both at same time.

13) Finally you can build!
      cd chromeos_network_file_share
      nacl/build.sh

Arm Nacl_IO Bug
===============

There is currently a bug that causes a crash on ARM Release builds. Until the
bug is fixed the workaround is to build libnacl_io.so with optimizations turned
off. If you don't do this extra step prior to building the app the ARM build
will crash.

Before building the app edit $NACL_SDK_ROOT/src/nacl_io/Makefile and add
'CFLAGS += -O0' (without quotes) after the line 'CFLAGS += -DNACL_IO_LOGGING=0'
then

cd $NACL_SDK_ROOT/src/nacl_io/
make V=1 CONFIG=Release TOOLCHAIN=glibc NACL_ARCH=arm

That will rebuild libnacl_io.so with optimization disabled. Then rebuild the
app.

Nacl SDK
========

  # Update SDK (currently using pepper_canary).
  ./naclsdk update pepper_canary --force

Building The App/Extension
==========================

  # Setup environment
  export NACL_SDK_ROOT=/path/to/your/nacl/sdk

  # Build
  nacl/build.sh

  # Package
  tools/to_temp.sh

Troubleshooting
===============

In file included from nacl_fsp.cc:24:
./SambaFsp.h:20:10: fatal error: 'samba/libsmbclient.h' file not found
#include "samba/libsmbclient.h"

If you see this error follow the steps above for 'Setup environment'