multi-git-sync

Sidecar to keep multiple git repositories in sync

What it is

Synchronises multiple git repositories to an area on local disk, based on configuration in a YAML file.

Why you might want it

Excellent question!

How to use it

Create a configuration YAML file like this:

root: /var/lib/data/git-repositories
interval: 30  # pull every 30 seconds
repos:
  dotfiles:
    url: git@github.com:jml/dotfiles.git
  emacs-configuration:
    url: git@github.com:jml/emacs-configuration.git

And store it in a path like /etc/multi-git-sync.yaml (the exact path doesn't matter).

Natively

Build and install the code with stack install and then run with:

multi-git-sync --port 8080 --config-file=/etc/multi-git-sync.yaml --ghc-metrics +RTS -N -T -RTS

This will start a server that you can reach at http://localhost:8080/

You can browse to that server to see the status of the Git repositories that have been pulled.

With Docker

[untested]

Create a Docker image with:

make image

The last line of successful make output will be the name of the image, e.g. multi-git-sync:master-1a2b3cd.

You can then run the image like so:

docker run -p 8080:80 multi-git-sync:master-1a2b3cd --port 80 +RTS -N

And you can reach the server at http://localhost:8080/ if you are running Docker natively. If you're on a Mac and using Docker Machine, you can run:

open http://$(docker-machine ip):8080/

To browse to the running server.

TODO

Service

• Serve the synced repos as static web pages
• Include last time synced in repo information
• Include last time config change in config information
• Serve current system time in config information

Git

• If repo sync successfully but working tree fails, retry working tree creation
• Support handling URL change
• Make sure Git commands are async exception safe

Users

• Confirm the README instructions for Docker