Synchronize local directories with Tahoe-LAFS storage grids
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Gridsync aims to provide a cross-platform, graphical user interface for
Tahoe-LAFS_, the Least Authority File Store. It is intended to simplify the Tahoe-LAFS installation and configuration process and ultimately provide user-friendly mechanisms for common use-cases like backing up local files, synchronizing directories between devices, and sharing files and folders with other users across all major desktop platforms (GNU/Linux, macOS, and Windows). More broadly, Gridsync aims to duplicate most of the core functionality provided by other, proprietary "cloud" backup and synchronization services and utilities (such as Dropbox and BitTorrent Sync) but without demanding any sacrifice of the user's privacy or freedom -- and without requiring usage or knowledge of the command line. Accordingly, Gridsync is developed with the goal in mind of making secure cloud storage freely available to everyone, without exception, without added barriers, and regardless of one's operating system choice.
.. _Tahoe-LAFS: https://tahoe-lafs.org
Tahoe-LAFS already provides a number of highly desirable properties for secure file-storage: in addition to offering client-side encryption, it is decentralized, robust, free (as in both beer and speech), stable and mature, and written by a group of very talented developers. Unfortunately -- and despite all of its technical merits -- Tahoe-LAFS has a number of persistent usability issues which steepen its learning curve: its installation requires manual compilation from source on Windows and macOS, its configuration consists in hand-editing text files, its primary interface requires heavy command line usage, and many of its fundamental concepts (e.g., "dircap", "shares", "servers-of-happiness") are opaque to new users or otherwise demand additional reading of the project's extensive documentation. Accordingly, Tahoe-LAFS' userbase consists primarily in seasoned developers and system administrators; non-technical users are naturally excluded from enjoying Tahoe-LAFS's aforementioned advantages.
The Gridsync project intends to overcome some of Tahoe-LAFS's usability barriers by means of following features:
magic-wormhole_ library to provide human-pronounceable "
invite codes_" for joining storage grids and sharing folders with other users.
Recovery Key_" subsystem allows connections and folders to be easily restored from a single file in the event of a disaster.
Tor support_ (experimental) -- Gridsync can tunnel outgoing connections through the
Tor_ anonymity network, concealing users' network location from storage service providers and each other.
.. _Magic-Folder: https://github.com/LeastAuthority/magic-folder .. _magic-wormhole: http://magic-wormhole.io .. _invite codes: https://github.com/gridsync/gridsync/blob/master/docs/invite-codes.md .. _Recovery Key: https://github.com/gridsync/gridsync/blob/master/docs/recovery-keys.md .. _Tor support: https://github.com/gridsync/gridsync/blob/master/docs/tor-integration.md .. _Tor: https://torproject.org
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.. image:: https://raw.githubusercontent.com/gridsync/gridsync/master/images/screenshots/old/welcome.png
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.. image:: https://raw.githubusercontent.com/gridsync/gridsync/master/images/screenshots/old/passphrase.gif
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Downloads for "stable" releases of Gridsync can be found on the project's
GitHub Releases page_ and include pre-built/binary distrubitions for all three major desktop platforms that have been compiled inside dedicated virtual machines on dedicated hardware. Users wishing to install these packages are strongly urged to
verify their signatures_ before running or, alternatively, to build/install Gridsync manually from source (see below).
.. _GitHub Releases page: https://github.com/gridsync/gridsync/releases .. _verify their signatures: https://github.com/gridsync/gridsync/blob/master/docs/verifying-signatures.md
To install and run Gridsync on GNU/Linux (64-bit only; supporting glibc 2.17 and above -- including Debian 9+, Ubuntu 16.04 LTS+, CentOS 7+, and Fedora 28+):
verify_ its signature)
chmod +x Gridsync-Linux.AppImage)
.. _Gridsync-Linux.AppImage: https://github.com/gridsync/gridsync/releases .. _verify: https://github.com/gridsync/gridsync/blob/master/docs/verifying-signatures.md
To install and run Gridsync on macOS (64-bit only; supporting macOS 10.14 "Mojave" and above):
verify_ its signature)
.. _Gridsync-macOS.dmg: https://github.com/gridsync/gridsync/releases .. _verify: https://github.com/gridsync/gridsync/blob/master/docs/verifying-signatures.md
To install and run Gridsync on Windows (64-bit only; supporting Windows Server 2012R2, Windows 7 SP1, Windows 8.1, and Windows 10):
verify_ its signature)
.. _Gridsync-Windows-setup.exe: https://github.com/gridsync/gridsync/releases .. _verify: https://github.com/gridsync/gridsync/blob/master/docs/verifying-signatures.md
make.bat_ file on Windows) references the various scripts and commands necessary for building Gridsync from source. For most users with Python already installed, building the application should simply be a matter of issuing a
makecommand at the top-level of the source tree:
.. code-block:: shell-session
This will create a standalone executable distribution of Gridsync with all of its dependencies included (including a "frozen" python interpreter and Tahoe-LAFS, using
PyInstaller), placing the resultant files/installers in the
dist/subdirectory. The Gridsync build process is
reproduciblesuch that, given the same set of build inputs (i.e., a particular revision of the source code), the resultant build output(s) (i.e., the application binaries) will always be bit-for-bit identical. Should any errors arise regarding missing dependencies, a
provision_devtools.sh_ script (or
provision_devtools.bat_ on Windows) is provided to download and install all of the core dependencies needed to build Gridsync on most supported operating systems.
.. Makefile: https://github.com/gridsync/gridsync/blob/master/Makefile .. _make.bat: https://github.com/gridsync/gridsync/blob/master/make.bat .. _PyInstaller: http://www.pyinstaller.org/ .. _reproducible: https://reproducible-builds.org/ .. _provisiondevtools.sh: https://github.com/gridsync/gridsync/blob/master/scripts/provisiondevtools.sh .. _provisiondevtools.bat: https://github.com/gridsync/gridsync/blob/master/scripts/provision_devtools.bat
Note, however, that PyInstaller-generated binaries are typically
not backward-compatible_; a PyInstaller executable that was built on a newer GNU/Linux distribution, for example (i.e., with a more recent version of
glibc) will not run on older distributions. Accordingly, if you intend to distribute Gridsync binaries for use on a wide range operating system versions, it is recommended that you build the application on as old of a system as is reasonable for a given platform (i.e., one which can build and run Gridsync but which still receives security updates). Presently, CentOS 7, macOS "Mojave" (10.14), and Windows Server 2012 R2 arguably constitute the most suitable candidates for GNU/Linux, macOS, and Windows build systems respectively (insofar as binaries generated on these systems will be forward-compatible with all others in that platform-category that are still supported upstream).
.. _not backward-compatible: https://pyinstaller.readthedocs.io/en/latest/usage.html#platform-specific-notes
To help facilitate the testing, building, and distribution of forward-compatible binaries -- as well as to enable a crude form of "cross-compilation" -- a custom
Vagrantfile_ has been provided inside the Gridsync source tree; users or developers with
VirtualBox_ installed [*]_ can automatically provision a complete Gridsync build environment that produces forward-compatible binaries via the following commands:
.. code-block:: shell-session
make vagrant-build-linux make vagrant-build-macos make vagrant-build-windows
These will download and configure a suitable virtual machine for the target platform (from the
public Vagrant Boxes catalog_), provision it with all required dependencies (such compilers/SDKs, python interpreters, X11 libraries, etc.), copy the Gridsync source code into the target VM, run the Gridsync test suite, and compile a final PyInstaller-generated binary package suitable for distribution (the result of which can be found in the
~/gridsync/distdirectory of the guest VM).
.. _Vagrantfile: https://github.com/gridsync/gridsync/tree/master/Vagrantfile .. _Vagrant: https://www.vagrantup.com/ .. _VirtualBox: https://www.virtualbox.org/ .. _public Vagrant Boxes catalog: https://app.vagrantup.com/boxes/search
.. [*] Note that in order to get Vagrant/VirtualBox working properly, users of GNU/Linux may need to add the current user's name to the local "vboxusers" group, while users experiencing issues with Windows guests may need to install some combination of the
winrm-elevatedVagrant plugins (via the
vagrant plugin install winrm winrm-fs winrm-elevatedcommand). For further assistance with installing, configuring, or using Vagrant and/or VirtualBox on your system, please consult the appropriate upstream documentation and/or help forums. In addition, please note that Gridsync project can make no guarantees about the security or safety of public Vagrant "Boxes"; please exercise appropriate caution when relying upon third-party software.
Alternatively, users with
dockerinstalled can use the CentOS 7-based
gridsync-builder_ image to build equivalent backward-compatible binaries without the addded overhead of Vagrant and VirtualBox:
.. code-block:: shell-session
.. _gridsync-builder: https://hub.docker.com/repository/docker/gridsync/gridsync-builder
While Gridsync ultimately aims to provide an easy-to-use frontend for users of Tahoe-LAFS, at present, its interface only supports a very limited subset of Tahoe-LAFS's underlying features and potential use-cases (namely, it provides simplified means for joining storage grids, creating and sharing "magic-folders," and receiving status updates and notifications pertaining to those processes). Accordingly, users should not (yet) expect Gridsync to provide a complete backup solution or to serve as a stand-in replacement for other tools with robust sharing and collaboration capabilities. In addition, it should be noted that
Magic-Folder_ is currently under heavy development and has a number of
known issues and limitations_.
.. _Magic-Folder: https://github.com/LeastAuthority/magic-folder .. _known issues and limitations: https://github.com/LeastAuthority/magic-folder/issues
Contributions of any sort (e.g., suggestions, criticisms, bug reports, pull requests) are welcome. Any persons interested in aiding the development of Gridsync are encouraged to do so by opening a
GitHub Issue_ or by contacting its primary developer:
Copyright (C) 2015-2022 Christopher R. Wood
This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.
The ongoing development of this project has been made possible by the generous sponsorships and grants provided by
Least Authority_ (2016-),
Internews/UXFund_ (2017), and
Open Technology Fund_ (2019-2020).
.. _Least Authority: https://leastauthority.com/ .. _Internews/UXFund: https://usable.tools/blog/2016-12-28-uxfund-results/ .. _Open Technology Fund: https://leastauthority.com/blog/secure-file-storage-tools-human-rights-defenders/