ClearSkies

ClearSkies is a sync program similar to DropBox, except it does not require a monthly fee. Instead, you set up shares between two or more computers and the sharing happens amongst them directly.

The protocol is documented in its own repository.

The software in this repository is a proof-of-concept of the protocol, written in ruby. It consists of a background daemon and a command-line interface to control that daemon.

The ruby code is a little out-of-date in relation to the latest version of the protocol, as efforts are being focused on a multi-platform C++ version.

Status

The software is currently barely functional, in read-write mode only. It is not yet ready for production use. IT MAY EAT YOUR DATA. Only use it on test data or on data that you have backed up someplace safe.

Installation

It is currently only tested on Linux. (It should also work on ruby 1.9 on OS X and Windows, if not please file an issue.)

If you already have a working ruby 1.9 or 2.0:

gem install rb-inotify ffi

Otherwise, installing dependencies on Ubuntu or Debian:

apt-get install libgnutls26 ruby1.9.1 ruby-rb-inotify ruby-ffi

Note: The version of "ffi" in the Debian stable (wheezy) apt repository has issues. The version of "rb-inotify" in Ubuntu 12.04 (precise) also has issues. In those cases, install the gems via ruby gems:

apt-get remove ruby-rb-inotify ruby-ffi
apt-get install ruby-dev
gem install rb-inotify ffi

Clone this repo:

git clone https://github.com/jewel/clearskies-ruby

To start and share a directory:

cd clearskies-ruby
./clearskies start # add --no-fork to run in foreground
./clearskies share ~/important-stuff --mode=read-write

This will print out a "SYNC" code. Copy the code to the other computer, and then add the share to begin syncing:

./clearskies attach $CODE ~/important-stuff

Contributing

Issues and pull requests are welcome.

The project mailing list is on google groups. (It is possible to participate via email if you do not have a google account.)