gcal-import.sh

#!/bin/bash

# From https://koenig-haunstetten.de/2017/01/02/google-calendar-integration-in-orgmode/
#
# Install into crontab with `crontab -e`:
#
#  3 * * * * ~/scripts/gcal-sync-org > /dev/null 2>&1
#
# Modify your emacs init script to load `diary.google` from DIARY_PATH:
#
#   (setq org-agenda-include-diary t)
#   (setq diary-file "~/Dropbox/notes/org/diary.google")

DIARY_PATH=~/Dropbox/notes/org

# Add your calendar .ics URLs here (find it in Google Calendar settings)
# Remember to add a backslash after each newline
CALURL=( \
"https://calendar.google.com/calendar/ical/youremail%40domain.com/private-abcdef0123456789/basic.ics" \
"https://calendar.google.com/calendar/ical/otheremail%40otherdomain.com/private-abcdef0123456789/basic.ics" \
"https://calendar.google.com/calendar/ical/mydomain.com_abcdef0123456789loc%40group.calendar.google.com/public/basic.ics"
)

# Because every URL above ends in basic.ics we map those to the real calendar names
# The length of ICSNAME must match the number of URLs in CALURL
ICSNAME=( cal-domain.ics cal-mydomain.ics cal-work-public.ics )

WGET=/usr/bin/wget
OUTDIR=/tmp/calimport

# --- end configuration ---

mkdir -p ${OUTDIR}
cd ${OUTDIR}

rm -f icsdiary.el

# Get the calendar ICS files, and construct an elisp file that
# will import these into my diary.
for ((i=0; i<${#CALURL[@]}; i++)); do
  $WGET --no-verbose -O ${ICSNAME[$i]} ${CALURL[$i]};
  echo "(icalendar-import-file \"${ICSNAME[$i]}\" \"diary.google\")" >> icsdiary.el
done

rm -f diary.google
emacs --no-init --batch -l icsdiary.el

cp diary.google ${DIARY_PATH}
cd .. && rm -rf ${OUTDIR}