added mail notification to bar

i3/.config/i3/i3blocks.conf

@@ -28,6 +28,19 @@ command=/usr/lib/i3blocks/$BLOCK_NAME
 separator_block_width=15
 markup=none
 
+[mail_gmail]
+command=~/.config/i3/i3blocks/gmail
+label=G
+instance=~/.i3mail/gmail
+interval=60
+separator=false
+
+[mail_andthensome]
+command=~/.config/i3/i3blocks/gmail
+label=A 
+instance=~/.i3mail/andthensome
+interval=60
+
 # Music
 [playerctl]
 command=~/.config/i3/vendor/i3blocks/blocks/playerctl

i3/.config/i3/i3blocks/gmail

@@ -0,0 +1,25 @@
+#!/bin/bash
+
+# Requires https://www.google.com/settings/security/lesssecureapps for gmail.
+
+CONFIG_FILE="${BLOCK_INSTANCE}"
+CONFIG_FILE=${CONFIG_FILE/\~/$HOME}
+
+# Config file needs the following settings:
+#MAIL_USER="user@domain.tld"
+#MAIL_PASSWORD="secret"
+
+if [[ ! -f "${CONFIG_FILE}" ]]; then
+  echo "${CONFIG_FILE}"
+  exit 33
+fi
+
+source "${CONFIG_FILE}"
+
+COUNT=`curl -su $MAIL_USER:$MAIL_PASSWORD https://mail.google.com/mail/feed/atom || echo "<fullcount>unknown number of</fullcount>"`
+COUNT=`echo "$COUNT" | grep -oPm1 "(?<=<fullcount>)[^<]+" `
+if [ "$COUNT" = "0" ]; then
+	echo ""
+else
+	echo $COUNT
+fi