#!/bin/sh # - Syncs mail for all accounts, or a single account given as an argument. # - Displays a notification showing the number of new mails. # - Displays a notification for each new mail with its subject displayed. # - Runs notmuch to index new mail. # - This script can be set up as a cron job for automated mail syncing. # There are many arbitrary and ugly features in this script because it is # inherently difficult to pass environmental variables to cronjobs and other # issues. It also should at least be compatible with Linux (and maybe BSD) with # Xorg and MacOS as well. # Run only if user logged in (prevent cron errors) pgrep -u "${USER:=$LOGNAME}" >/dev/null || { echo "$USER not logged in; sync will not run."; exit ;} # Run only if not already running in other instance pgrep mbsync >/dev/null && { echo "mbsync is already running."; exit ;} # First, we have to get the right variables for the mbsync file, the pass # archive, notmuch and the GPG home. This is done by searching common profile # files for variable assignments. This is ugly, but there are few options that # will work on the maximum number of machines. eval "$(grep -h -- \ "^\s*\(export \)\?\(MBSYNCRC\|PASSWORD_STORE_DIR\|NOTMUCH_CONFIG\|GNUPGHOME\)=" \ "$HOME/.profile" "$HOME/.bash_profile" "$HOME/.zprofile" "$HOME/.config/zsh/.zprofile" "$HOME/.zshenv" \ "$HOME/.config/zsh/.zshenv" "$HOME/.bashrc" "$HOME/.zshrc" "$HOME/.config/zsh/.zshrc" \ "$HOME/.pam_environment" 2>/dev/null)" export GPG_TTY="$(tty)" [ -n "$MBSYNCRC" ] && alias mbsync="mbsync -c $MBSYNCRC" || MBSYNCRC="$HOME/.mbsyncrc" lastrun="${XDG_CONFIG_HOME:-$HOME/.config}/mutt/.mailsynclastrun" # Settings are different for MacOS (Darwin) systems. case "$(uname)" in Darwin) notify() { osascript -e "display notification \"$2 in $1\" with title \"You've got Mail\" subtitle \"Account: $account\"" && sleep 2 ;} ;; *) case "$(readlink -f /sbin/init)" in *systemd*|*openrc*) export DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/$(id -u)/bus ;; esac # remember if a display server is running since `ps` doesn't always contain a display pgrepoutput="$(pgrep -ax X\(\|org\|wayland\))" displays="$(echo "$pgrepoutput" | grep -wo "[0-9]*:[0-9]\+" | sort -u)" notify() { [ -n "$pgrepoutput" ] && for x in ${displays:-0:}; do export DISPLAY=$x notify-send --app-name="mutt-wizard" "New mail!" "📬 $2 new mail(s) in \`$1\` account." done ;} ;; esac # Check account for new mail. Notify if there is new content. syncandnotify() { acc="$(echo "$account" | sed "s/.*\///")" if [ -z "$opts" ]; then mbsync "$acc"; else mbsync "$opts" "$acc"; fi new=$(find\ "$HOME/.local/share/mail/$acc/INBOX/new/"\ "$HOME/.local/share/mail/$acc/Inbox/new/"\ "$HOME/.local/share/mail/$acc/inbox/new/"\ "$HOME/.local/share/mail/$acc/INBOX/cur/"\ "$HOME/.local/share/mail/$acc/Inbox/cur/"\ "$HOME/.local/share/mail/$acc/inbox/cur/"\ -type f -newer "$lastrun" 2> /dev/null) newcount=$(echo "$new" | sed '/^\s*$/d' | wc -l) case 1 in $((newcount > 0)) ) notify "$acc" "$newcount" ;; esac } # Sync accounts passed as argument or all. if [ "$#" -gt "0" ]; then for arg in "$@"; do [ "${arg%${arg#?}}" = '-' ] && opts="${opts:+${opts} }${arg}" && shift 1 done accounts=$* fi [ -z "$accounts" ] && accounts="$(awk '/^Channel/ {print $2}' "$MBSYNCRC")" # Parallelize multiple accounts for account in $accounts; do syncandnotify & done wait notmuch new --quiet #Create a touch file that indicates the time of the last run of mailsync touch "$lastrun"