monitor-status

monitor-status (please do a PR if you have a better name) is a tool which allows to watch for udev events. It was initially written to reset my i3 worspaces when a monitor is plugged in, but it can be used for any kind of device.

It's still work in progress.

Installing and running

There are no binary packages yet, but the tootl can easily be built. Dependencies are go (1.8 or higher version) and libudev-dev (systemd-devel on Fedora).

Once the depencies are installed, simply run go get github.com/lukapeschke/monitor-status and you're good to go.

Installing with docker

If you don't want to install go and dependencies, you can build this with docker. A service file will also be generated:

$ git clone https://github.com/lukapeschke/monitor-status
$ cd monitor-status
# The image is also available on the docker hub, this step isn't mandatory
$ docker build -t lukapeschke/monitor-status .
$ docker run --rm -v $PWD:/root/monitor-status lukapeschke/monitor-status $USER
$ ./install.sh
$ sudo systemctl daemon-reload
$ sudo systemctl start monitor-status

The service should now be enabled and running.

Configuration

The tool will look for a config file in the following places:

"./config.yml",
"~/.monitor-status/config.yml",
"~/.config/monitor-status.yml",
"~/.config/monitor-status/config.yml",
"$GOPATH/src/github.com/lukapeschke/monitor-status/config.yml"

If your config file is located elsewhere, you can specify its path with the -config flag.

The config file has the following format:

drm: # subsystem
  card0-DP-3: # device
    on_connect: ~/bin/reset_workspaces.sh # command for "add" event
    on_disconnect: xrandr --output DP-1-1 --off # command for "remove" event
  DEVICE2:
    on_connect: echo "hello world!"
    on_disconnect: echo "bye!"
SUBSYSTEM2:
  [...]

For now, only on_connect and on_disconnect are supported, but more events will be supported in the future.