ReSync (REpository SYNChronizer) is a small utility used to continuously and unilaterally synchronize a master machine (typically a coding machine) with slaves machines (build or execution machines) in real time.

The name come from the original usage (synchronize a git repository from a coding machine to a build/execution machine) and is a word play with rsync.

Install the requirements for Debian-based system:

sudo apt-get install rsync inotify-tools

Install the requirements for Arch Linux system:

sudo pacman -S rsync inotify-tools

Configure the system by increasing the inotify’s watches for a user, otherwise, the Couldn't initialize inotify: Too many open files error could happened:

sudo make configure

Install it in normal mode:

sudo make install

Install it in development mode:

sudo make install-dev

Uninstall it:

sudo make uninstall

Call the script with:

1. The repository path as first argument,
2. The machines’ SSH names as second (and more) argument(s).

resync $pwd $hostname

The repository will be continuously synchronized to the SSH machine, in a git folder under its home directory ($REMOTE:$HOME/git), using inotify as change detection system and rsync as transfer system.

Regarding the current installation method, resync.sh has to remain a single-file project for now.

Use a system-wide lock file (e.g. touch /tmp/resync-$(pwd) or using a symlink) during all resync process to not allow launching 2 resync processes in the same git project.

Use a repository-wide lock file (e.g. touch .git/.resync-lock) during rsync process to allows launching resync on two machines for the same repo, allowing to do duplex synchronization.

OSync [GitHub, AUR]

Bidirectional file sync script based on RSync.