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103 lines
4.5 KiB
103 lines
4.5 KiB
#!/bin/sh
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# - Syncs mail for all accounts, or a single account given as an argument.
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# - Displays a notification showing the number of new mails.
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# - Displays a notification for each new mail with its subject displayed.
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# - Runs notmuch to index new mail.
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# - This script can be set up as a cron job for automated mail syncing.
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# There are many arbitrary and ugly features in this script because it is
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# inherently difficult to pass environmental variables to cronjobs and other
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# issues. It also should at least be compatible with Linux (and maybe BSD) with
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# Xorg and MacOS as well.
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# Run only if user logged in (prevent cron errors)
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pgrep -u "${USER:=$LOGNAME}" >/dev/null || { echo "$USER not logged in; sync will not run."; exit ;}
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# Run only if not already running in other instance
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pgrep -x mbsync >/dev/null && { echo "mbsync is already running." ; exit ;}
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# First, we have to get the right variables for the mbsync file, the pass
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# archive, notmuch and the GPG home. This is done by searching common profile
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# files for variable assignments. This is ugly, but there are few options that
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# will work on the maximum number of machines.
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eval "$(grep -h -- \
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"^\s*\(export \)\?\(MBSYNCRC\|IMAPFILTER_CONFIG\|PASSWORD_STORE_DIR\|NOTMUCH_CONFIG\|GNUPGHOME\|XDG_DATA_HOME\|XDG_CONFIG_HOME\|XDG_RUNTIME_DIR\|XDG_CACHE_HOME\)=" \
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"$HOME/.profile" "$HOME/.bash_profile" "$HOME/.zprofile" "$HOME/.config/zsh/.zprofile" "$HOME/.zshenv" \
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"$HOME/.bashrc" "$HOME/.zshrc" "$HOME/.config/zsh/.zshrc" "$HOME/.pam_environment" 2>/dev/null)"
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sound=0
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case "$(readlink -f /sbin/init)" in
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*systemd*) export DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/$(id -u)/bus ;;
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esac
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export GPG_TTY=$TTY
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[ -n "$MBSYNCRC" ] && alias mbsync="mbsync -c $MBSYNCRC" || MBSYNCRC="$HOME/.mbsyncrc"
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# Settings are different for MacOS (Darwin) systems.
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case "$(uname)" in
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Darwin)
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notify() { osascript -e "display notification \"$2 in $1\" with title \"You've got Mail\" subtitle \"Account: $account\"" && sleep 2 ;}
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messageinfo() { osascript -e "display notification with title \"📧 $from\" subtitle \"$subject\"" ;}
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;;
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*)
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# remember if a display server is running since `ps` doesn't always contain a display
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pgrepoutput="$(pgrep -a X\(org\|wayland\))"
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displays="$(echo "$pgrepoutput" | grep -wo "[0-9]*:[0-9]\+" | sort -u)"
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notify() { [ -n "$pgrepoutput" ] && for x in ${displays:-:0}; do
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export DISPLAY=$x
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notify-send --app-name="NeoMutt" " $2 new mail(s) in \`$1\` account."
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if [ $sound = 0 ]; then
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canberra-gtk-play -i message -V 25
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sound=1
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fi
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done ;}
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messageinfo() { [ -n "$pgrepoutput" ] && for x in ${displays:-:0}; do
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export DISPLAY=$x
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notify-send --app-name="NeoMutt" " $from:" "$subject"
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done ;}
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;;
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esac
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# Check account for new mail. Notify if there is new content.
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syncandnotify() {
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acc="$(echo "$account" | sed "s/.*\///")"
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if [ -z "$opts" ]; then mbsync "$acc"; else mbsync "$opts" "$acc"; fi
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new=$(find "$HOME/.local/share/mail/$acc/INBOX/new/" "$HOME/.local/share/mail/$acc/Inbox/new/" "$HOME/.local/share/mail/$acc/inbox/new/" -type f -newer "${XDG_CACHE_HOME:-$HOME/.cache}/.mailsynclastrun" 2> /dev/null)
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find "$HOME/.local/share/mail/$acc/INBOX/new/" "$HOME/.local/share/mail/$acc/Inbox/new/" "$HOME/.local/share/mail/$acc/inbox/new/" -type f | sed '/^\s*$/d' | wc -l > "$XDG_CACHE_HOME/mcount"
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newcount=$(echo "$new" | sed '/^\s*$/d' | wc -l)
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if [ "$newcount" -gt "0" ]; then
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notify "$acc" "$newcount" &
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for file in $new; do
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# Extract subject and sender from mail.
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from=$(awk '/^From: / && ++n ==1,/^\<.*\>:/' "$file" | perl -CS -MEncode -ne 'print decode("MIME-Header", $_)' | awk '{ $1=""; if (NF>=3)$NF=""; print $0 }' | sed 's/^[[:blank:]]*[\"'\''\<]*//;s/[\"'\''\>]*[[:blank:]]*$//')
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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')
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messageinfo &
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done
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fi
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}
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imapfilter -c "$IMAPFILTER_CONFIG"
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# Sync accounts passed as argument or all.
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if [ "$#" -eq "0" ]; then
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accounts="$(awk '/^Channel/ {print $2}' "$MBSYNCRC")"
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else
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for arg in "$@"; do
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[ "${arg%${arg#?}}" = '-' ] && opts="${opts:+${opts} }${arg}" && shift 1
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done
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accounts=$*
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fi
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# Parallelize multiple accounts
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for account in $accounts; do
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syncandnotify &
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done
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wait
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notmuch new 2>/dev/null
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touch "${XDG_CACHE_HOME:-$HOME/.cache}/.mailsynclastrun"
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kill -57 $(pidof dwmblocks)
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