Helper binary to install xkb keyboard layouts

This script notably helps to install a new ruleset within the only file that actually gets parsed by the system to list the available layouts.

Usage

Once the binanry gets properly installed (from a binary on the release page)

xkb-install -h

Meanwhile to quickly iterate and test it, here's an example

go run . -S fr -V optimot_ergo -d "French (Optimot, clavier Ergo)" --compose=./Optimot-Compose.txt ./Optimot-Ergo.xkb
# Alternatively
xkb-install -S fr -V optimot_ergo -d "French (Optimot, clavier Ergo)" --compose=./Optimot-Compose.txt ./Optimot-Ergo.xkb

The Optimot-Ergo.xkb file is expected to have symbol data about the variant like

xkb_symbols "optimot_ergo" {
    ...
};

Features

• Idempotent
• Makes a layout available in system dropdowns

Extra details:

• [-] Install an extra XkbSymbols table in the /usr/share/X11/xkb/symbols/XX file
• Add extra variants in the evdev.lst file under the XX symbol
• Add extra variants in the evdev.xml file under the XX layout/symbol
  • edit the XML file in tree
  • backup the old file with a timestamp
  • write the new file after getting sudo rights
• Install an optional .Xcompose file in the home of $USER