gistfile1.txt

#!/bin/sh

PATH=${PATH}:/usr/local/bin/

calendar_get_events() {
    local day="${1:-tomorrow}" # see man date(1) DATE STRING

    # validate day syntax
    for i in $day "$day + 1 day"; do
        date -d"${i}" "+%Y-%m-%d" >/dev/null 2>&1 || {
            echo "calendar_get_events invalid argument, see man date(1) DATE STRING" > /dev/stderr
            return
        }
    done

    gcalcli --military --nocolor agenda `date -d"$day" +%Y-%m-%d` `date -d"$day + 1 day" +%Y-%m-%d`
}

parse_events() {
     sed -E 's/^..\. [^\.]+\. [0-9]+? //' | awk -r '/^ +[0-9]+?:[0-9]+? / {printf "[CAL] "$1;$1=""; print $0}' | sort -r

}

habatica_update_todo() {
    xargs -tI% sh -c "habitica todos | fgrep '%' || habitica todos add --difficulty=easy '%'"
}


calendar_get_events "now" | parse_events | habatica_update_todo

If you have access to shared calendars you should consider to specify a calendar on line 16 with the calendar option like --calendar <calendar name here>. If not all events from all calendars will be imported.

The parse_events function did not work perfectly it always misses the first event of a day. The following line fixes it for me sed -E 's/^.*? [0-9]+?^C//' | awk -r '/^.*[0-9]+?:[0-9]+? / {printf "[CAL] "$1;$1=""; print $0}' | sort -r$. Replace the existing line in the method parse_events with the one before.