show the number of unread mail in i3bar

bin/.local/bin/update-mail-count

@@ -0,0 +1,3 @@
+#!/usr/bin/env bash
+
+fd -t f . "$HOME/.cache/mail/waarp/INBOX/new/" | wc -l > "$HOME/.cache/mail/waarp.unreadcount"

i3wm/.config/i3status/config

@@ -22,6 +22,7 @@ order += "battery all"
 order += "volume master"
 order += "load"
 order += "cpu_usage"
+order += "read_file unreadmail"
 order += "tztime local"
 
 wireless _first_ {
@@ -70,3 +71,9 @@ disk "/" {
 disk "/home" {
         format = "  %avail (%percentage_avail)"
 }
+
+read_file unreadmail {
+    path = "/home/bca/.cache/mail/waarp.unreadcount"
+    format = "  %content"
+    Max_characters = 10
+}

systemd/.config/systemd/user/timers.target.wants/update-mail-count.timer

@@ -0,0 +1 @@
+/home/bca/.config/systemd/user/update-mail-count.timer

systemd/.config/systemd/user/update-mail-count.service

@@ -0,0 +1,6 @@
+[Unit]
+Description=Update mail count for display in i3status
+
+[Service]
+Type=oneshot
+ExecStart=/home/bca/.local/bin/update-mail-count

systemd/.config/systemd/user/update-mail-count.timer

@@ -0,0 +1,11 @@
+[Unit]
+Description=mail count timer
+
+[Timer]
+OnBootSec=1m
+OnUnitActiveSec=1m
+Persistent=true
+Unit=update-mail-count.service
+
+[Install]
+WantedBy=timers.target