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| -rwxr-xr-x | mail-overview/waybar-mail.sh | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/mail-overview/waybar-mail.sh b/mail-overview/waybar-mail.sh new file mode 100755 index 0000000..06f8427 --- /dev/null +++ b/mail-overview/waybar-mail.sh @@ -0,0 +1,66 @@ +#!/bin/bash +# +# Copyright (C) 2026 Danilo M. <danix@danix.xyz> +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License version 2 as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# Waybar custom module in continuous mode: prints one JSON line per notmuch +# commit, forever, and waybar redraws on each line. Waybar owns this process, +# which is why there is no daemon to supervise and no interval to tune. +# +# The count is the total across every account. A per account breakdown is the +# drawer's job; see mail-overview/README.md. + +set -u + +QUERY='tag:unread and tag:inbox' + +# notmuch knows where its own database is, so this follows a moved database +# without an edit here. +db="$(notmuch config get database.path 2>/dev/null)/xapian" + +emit() { + local n + n="$(notmuch count "$QUERY" 2>/dev/null)" + + # notmuch exits 0 even for a malformed query, printing something that is + # not a count, so the exit status is not the test: the output is. Anything + # that is not a plain number is a failure, and a failure must not render + # as "no new mail". + if [[ ! "$n" =~ ^[0-9]+$ ]]; then + printf '{"text":"!","tooltip":"notmuch count failed","class":"error"}\n' + return + fi + + if [[ "$n" -eq 0 ]]; then + printf '{"text":"","class":"empty"}\n' + else + printf '{"text":"%s","class":"unread"}\n' "$n" + fi +} + +if [[ ! -d "$db" ]]; then + printf '{"text":"!","tooltip":"no notmuch database","class":"error"}\n' + exit 1 +fi + +emit + +while inotifywait -qq -e close_write,moved_to "$db" 2>/dev/null; do + # One commit touches several files. Without this the module redraws three + # or four times per sync with intermediate counts. + sleep 0.3 + emit +done + +# Falling out of the loop means inotifywait itself failed. Say so rather than +# exiting silently, which looks like an empty inbox. +printf '{"text":"!","tooltip":"mail watcher stopped","class":"error"}\n' +exit 1 |