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dotfiles/.local/bin/mailsync

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#!/usr/bin/env sh
######################################################################
# @author : swytch (adapted from Luke Smith - lukesmith.xyz)
# @file : mailsync
# @license : GPLv3
# @created : Sunday Feb 14, 2021 12:46:24 CET
#
# @description : synchronize mail accounts
######################################################################
# First, get the right variables for the mbsync file, the pass archive, notmuch
# and the GPG home. This is done by searching common profile files for variable
# assignments.
eval "$(grep -h -- \
"^\s*\(export \)\?\(XDG_CACHE_HOME\|XDG_CONFIG_HOME\|XDG_DATA_HOME\)=" \
"$HOME/.profile" 2>/dev/null)"
eval "$(grep -h -- \
"^\s*\(export \)\?\(MBSYNCRC\|PASSWORD_STORE_DIR\|NOTMUCH_CONFIG\|GNUPGHOME\)=" \
"$HOME/.profile" "$HOME/.pam_environment" 2>/dev/null)"
case "$(readlink -f /sbin/init)" in
*systemd*) export DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/$(id -u)/bus ;;
esac
export GPG_TTY=$TTY
# Config file location must be passed at execution, not as envrionment variable
[ -n "$MBSYNCRC" ] && alias mbsync="mbsync -c $MBSYNCRC" || MBSYNCRC="$HOME/.mbsyncrc"
displays="$(pgrep -a X\(org\|wayland\) | grep -wo "[0-9]*:[0-9]\+" | sort -u)"
notify() { for x in $displays; do
notify-send "neomutt" " $2 new mail(s) in \`$1\` account."
done ;}
messageinfo() { for x in $displays; do
export DISPLAY=$x
notify-send " $from:" "$subject"
done ;}
# Check account for new mail. Notify if there is new content.
syncandnotify() {
acc="$(echo "$account" | sed "s/.*\///")"
if [ -z "$opts" ]; then mbsync "$acc"; else mbsync "$opts" "$acc"; fi
new="$(find "${XDG_DATA_HOME:-$HOME/.local/share}"/mail/$acc/[Ii][Nn][Bb][Oo][Xx]/new/* -type f -newer "${XDG_CONFIG_HOME:-$HOME/.config}/mutt/.mailsynclastrun" 2>/dev/null)"
newcount=$(echo "$new" | sed '/^\s*$/d' | wc -l)
if [ "$newcount" -gt "0" ]; then
for file in $new; do
# Extract subject and sender from mail.
from=$(awk '/^From: / && ++n ==1,/^\<.*\>:/' "$file" | perl -CS -MEncode -ne 'print decode("MIME-Header", $_)' | awk '{ $1=""; if (NF>=3)$NF=""; print $0 }' | sed 's/^[[:blank:]]*[\"'\''\<]*//;s/[\"'\''\>]*[[:blank:]]*$//')
subject=$(awk '/^Subject: / && ++n == 1,/^\<.*\>: / && ++i == 2' "$file" | head -n 1 | perl -CS -MEncode -ne 'print decode("MIME-Header", $_)' | sed 's/^Subject: //' | sed 's/^{[[:blank:]]*[\"'\''\<]*//;s/[\"'\''\>]*[[:blank:]]*$//' | tr -d '\n')
messageinfo &
done
notify "$acc" "$newcount" &
[ -n "$(pidof dwmblocks)" ] && kill -40 $(pidof dwmblocks)
fi
}
accounts="$(awk '/^Channel/ {print $2}' "$MBSYNCRC")"
# Parallelize multiple accounts
for account in $accounts; do
syncandnotify &
done
wait
notmuch new 2>/dev/null
#Create a touch file that indicates the time of the last run of mailsync
touch "${XDG_CONFIG_HOME:-$HOME/.config}/mutt/.mailsynclastrun"