calculate participation key generation factors

gen.sh

#!/bin/bash

set -e

address=$1
duration=$2
duration=${duration:-650000}

if [ "$address" == "" ]; then
	echo "Usage: $0 <address> [<duration>]"
	echo "address is mandatory. duration is optional"
	exit 1
fi

start=$(goal node status | grep 'Last committed' | cut -d: -f2)
echo Current round: $start

start=$((start + 1))

echo "Start round: $start (+1)"

end=$((start + duration))
echo "End round: $end (+$duration)"

sqrt=`echo "scale=0; sqrt($((end-start)))" | bc`
echo "Dilution (sqrt(end-start)): $sqrt"

echo Command to run:
echo ""

echo "goal account addpartkey -a $address --roundFirstValid=$start --roundLastValid=$end --keyDilution=$sqrt"

To use this version:

Delete any old one if necessary

rm gen.sh

Download it

wget https://gist.githubusercontent.com/d13co/edca626cedc62240b41becffcc0dd18d/raw/9e777accb9d40c067634c055acd000caa4aa58a0/gen.sh

Make it executable

chmod +x gen.sh

Run it

./gen.sh <your-address> <participation-duration-in-number-of-rounds>