Bash script to import ICS into Radicale

calendar_astreinte.sh

#!/usr/bin/env bash

# This script import an ics calendar into Radicale
#TODO: check if the current calendar is up to date before to import it, I tried downloading it and comparing checksums but events ain't in the same order :(

declare -r _RADICALE_CALENDAR_URL="<URL of you Radicale calendar"
declare -r _ICS_CALENDAR_URL="<URL of your ICS calendar>"
declare -r _USERPASSWD="<user>:<password>"

_TEMPORARY_ICS="$(mktemp)"

curl -k --silent --output "${_TEMPORARY_ICS}" -X GET "${_ICS_CALENDAR_URL}"
if [ -s "${_TEMPORARY_ICS}" ] ; then
    curl -k --silent --user "${_USERPASSWD}" -X PUT -H "Content-Type: text/calendar; charset=utf-8" --data-binary @"${_TEMPORARY_ICS}" "${_RADICALE_CALENDAR_URL}"
    rm "${_TEMPORARY_ICS}"
fi

exit 0