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+# Report mail count for your mailbox type
+
+TMUX_POWERLINE_SEG_MAILCOUNT_MAILDIR_INBOX_DEFAULT="$HOME/.mail/inbox/new"
+TMUX_POWERLINE_SEG_MAILCOUNT_MBOX_INBOX_DEFAULT="${MAIL}"
+TMUX_POWERLINE_SEG_MAILCOUNT_MAILCHECKRC_DEFAULT="${HOME}/.mailcheckrc"
+TMUX_POWERLINE_SEG_MAILCOUNT_GMAIL_SERVER_DEFAULT="gmail.com"
+TMUX_POWERLINE_SEG_MAILCOUNT_GMAIL_INTERVAL_DEFAULT="5"
+
+
+generate_segmentrc() {
+	read -d '' rccontents  << EORC
+# Mailbox type to use. Can be any of {apple_mail, gmail, maildir, mbox, mailcheck}
+export TMUX_POWERLINE_SEG_MAILCOUNT_MAILBOX_TYPE=""
+
+## Gmail
+# Enter your Gmail username here WITH OUT @gmail.com.( OR @domain)
+export TMUX_POWERLINE_SEG_MAILCOUNT_GMAIL_USERNAME=""
+# Google password. Recomenned to use application specific password (https://accounts.google.com/b/0/IssuedAuthSubTokens) Leave this empty to get password from OS X keychain.
+# For OSX users : MAKE SURE that you add a key to the keychain in the format as follows
+# Keychain Item name : http://<value-you-fill-in-server-variable-below>
+# Account name : <username-below>@<server-below>
+# Password : Your password ( Once again, try to use 2 step-verification and application-specific password)
+# See http://support.google.com/accounts/bin/answer.py?hl=en&answer=185833 for more info.
+export TMUX_POWERLINE_SEG_MAILCOUNT_GMAIL_PASSWORD=""
+# Domain name that will complete your email. For normal GMail users it probably is "gmail.com but can be "foo.tld" for Google Apps users.
+export TMUX_POWERLINE_SEG_MAILCOUNT_GMAIL_SERVER="${TMUX_POWERLINE_SEG_MAILCOUNT_GMAIL_SERVER_DEFAULT}"
+# How often in minutes to check for new mails.
+export TMUX_POWERLINE_SEG_MAILCOUNT_GMAIL_INTERVAL="${TMUX_POWERLINE_SEG_MAILCOUNT_GMAIL_INTERVAL_DEFAULT}"
+
+## Maildir
+# Path to the maildir to check.
+export TMUX_POWERLINE_SEG_MAILCOUNT_MAILDIR_INBOX="${TMUX_POWERLINE_SEG_MAILCOUNT_MAILDIR_INBOX_DEFAULT}"
+
+## mbox
+# Path to the mbox to check.
+export TMUX_POWERLINE_SEG_MAILCOUNT_MBOX_INBOX="${TMUX_POWERLINE_SEG_MAILCOUNT_MBOX_INBOX_DEFAULT}"
+
+## mailcheck
+# Optional path to mailcheckrc
+export TMUX_POWERLINE_SEG_MAILCOUNT_MAILCHECKRC="${TMUX_POWERLINE_SEG_MAILCOUNT_MAILCHECKRC_DEFAULT}"
+EORC
+	echo "${rccontents}"
+}
+
+__process_settings() {
+	if [ -z "$TMUX_POWERLINE_SEG_MAILCOUNT_GMAIL_SERVER" ]; then
+		export TMUX_POWERLINE_SEG_MAILCOUNT_GMAIL_SERVER="${TMUX_POWERLINE_SEG_MAILCOUNT_GMAIL_SERVER_DEFAULT}"
+	fi
+	if [ -z "$TMUX_POWERLINE_SEG_MAILCOUNT_GMAIL_INTERVAL" ]; then
+		export TMUX_POWERLINE_SEG_MAILCOUNT_GMAIL_INTERVAL="${TMUX_POWERLINE_SEG_MAILCOUNT_GMAIL_INTERVAL_DEFAULT}"
+	fi
+
+	eval TMUX_POWERLINE_SEG_MAILCOUNT_MBOX_INBOX="$TMUX_POWERLINE_SEG_MAILCOUNT_MBOX_INBOX"
+	if [ -z "$TMUX_POWERLINE_SEG_MAILCOUNT_MAILDIR_INBOX" ]; then
+		export TMUX_POWERLINE_SEG_MAILCOUNT_MAILDIR_INBOX="${TMUX_POWERLINE_SEG_MAILCOUNT_MAILDIR_INBOX_DEFAULT}"
+	fi
+
+	eval TMUX_POWERLINE_SEG_MAILCOUNT_MAILDIR_INBOX="$TMUX_POWERLINE_SEG_MAILCOUNT_MAILDIR_INBOX"
+	if [ -z "${TMUX_POWERLINE_SEG_MAILCOUNT_MBOX_INBOX}" ]; then
+		export TMUX_POWERLINE_SEG_MAILCOUNT_MBOX_INBOX="${TMUX_POWERLINE_SEG_MAILCOUNT_MBOX_INBOX_DEFAULT}"
+	fi
+
+	eval TMUX_POWERLINE_SEG_MAILCOUNT_MAILCHECKRC="$TMUX_POWERLINE_SEG_MAILCOUNT_MAILCHECKRC"
+	if [ -z "${TMUX_POWERLINE_SEG_MAILCOUNT_MAILCHECKRC}" ]; then
+		export TMUX_POWERLINE_SEG_MAILCOUNT_MAILCHECKRC="${TMUX_POWERLINE_SEG_MAILCOUNT_MAILCHECKRC_DEFAULT}"
+	fi
+
+}
+
+run_segment() {
+	__process_settings
+
+	if [ -z "$TMUX_POWERLINE_SEG_MAILCOUNT_MAILBOX_TYPE" ]; then
+		return 2
+	fi
+
+	local count
+	case "$TMUX_POWERLINE_SEG_MAILCOUNT_MAILBOX_TYPE" in
+		"apple_mail")  count=$(__count_apple_mail) ;;
+		"gmail")  count=$(__count_gmail) ;;
+		"maildir")  count=$(__count_maildir) ;;
+		"mbox")  count=$(__count_mbox) ;;
+		"mailcheck")  count=$(__count_mailcheck) ;;
+		*)
+			echo "Unknown mailbox type [${TMUX_POWERLINE_SEG_MAILCOUNT_MAILBOX_TYPE}]";
+			return 1
+	esac
+	local exitcode="$?"
+	if [ "$exitcode" -ne 0 ]; then
+		return $exitcode
+	fi
+
+	if [[ -n "$count"  && "$count" -gt 0 ]]; then
+		echo "✉ ${count}"
+	fi
+
+	return 0
+}
+
+
+__count_apple_mail() {
+	count=$(${TMUX_POWERLINE_DIR_SEGMENTS}/mailcount_apple_mail.script)
+	echo "$count"
+}
+
+__count_gmail() {
+	local tmp_file="${TMUX_POWERLINE_DIR_TEMPORARY}/gmail_count.txt"
+	local tmp_wgetrc="${TMUX_POWERLINE_DIR_TEMPORARY}/tmp_wgetrc.txt"
+	local override_passget="false"	# When true a force reloaded will be done.
+
+	# Create the cache file if it doesn't exist.
+	if [ ! -f "$tmp_file" ]; then
+		touch $tmp_file
+		override_passget=true
+	fi
+
+	# Refresh mail count if the tempfile is older than $interval minutes.
+	let interval=60*$TMUX_POWERLINE_SEG_MAILCOUNT_GMAIL_INTERVAL
+	if shell_is_osx || shell_is_bsd; then
+		last_update=$(stat -f "%m" ${tmp_file})
+	elif shell_is_linux; then
+		last_update=$(stat -c "%Y" ${tmp_file})
+	fi
+	if [ "$(( $(date +"%s") - ${last_update} ))" -gt "$interval" ] || [ "$override_passget" == true ]; then
+		if [ -z "$TMUX_POWERLINE_SEG_MAILCOUNT_GMAIL_PASSWORD" ]; then # Get password from keychain if it isn't already set.
+			if shell_is_osx; then
+				__mac_keychain_get_pass "${TMUX_POWERLINE_SEG_MAILCOUNT_GMAIL_USERNAME}@${TMUX_POWERLINE_SEG_MAILCOUNT_GMAIL_SERVER}" "$TMUX_POWERLINE_SEG_MAILCOUNT_GMAIL_SERVER"
+			else
+				echo "Implement your own sexy password fetching mechanism here."
+				return 1
+			fi
+		fi
+
+		# Check for wget before proceeding.
+		which wget 2>&1 > /dev/null
+		if [ $? -ne 0 ]; then
+			echo "This script requires wget." 1>&2
+			return 1
+		fi
+
+    	# Hide password from command line (visible with e.g. ps(1)).
+    	echo -e "user=${TMUX_POWERLINE_SEG_MAILCOUNT_GMAIL_USERNAME}@${TMUX_POWERLINE_SEG_MAILCOUNT_GMAIL_SERVER}\npassword=${TMUX_POWERLINE_SEG_MAILCOUNT_GMAIL_PASSWORD}" > "$tmp_wgetrc"
+		mail=$(wget -q -O - https://mail.google.com/a/${TMUX_POWERLINE_SEG_MAILCOUNT_GMAIL_SERVER}/feed/atom --config "$tmp_wgetrc" | grep fullcount | sed 's/<[^0-9]*>//g')
+		rm "$tmp_wgetrc"
+
+		if [ "$mail" != "" ]; then
+			echo $mail > $tmp_file
+		else
+			return 1
+		fi
+	fi
+
+	count=$(cat $tmp_file)
+	echo "$count"
+	return 0;
+} 
+
+__count_maildir() {
+	if [ ! -d "$TMUX_POWERLINE_SEG_MAILCOUNT_MAILDIR_INBOX" ]; then
+		return 1
+	fi
+
+	count=$(ls "$TMUX_POWERLINE_SEG_MAILCOUNT_MAILDIR_INBOX" | wc -l)
+
+	# Fix for mac, otherwise whitespace is left in output
+	if shell_is_osx; then
+		count=$(echo "$count" | sed -e "s/^[ \t]*//")
+	fi
+
+	echo "$count"
+	return 0;
+}
+
+__count_mbox() {
+	if [ ! -f "${TMUX_POWERLINE_SEG_MAILCOUNT_MBOX_INBOX}" ]; then
+		return 1
+	fi
+
+	# This matches the From_ line (see man 5 mbox) e.g.
+	# From noreply@github.com  Sun Dec	2 03:52:25 2012
+	# See https://github.com/erikw/tmux-powerline/pull/91#issuecomment-10926053 for discussion.
+	count=$(grep -c '^From [^[:space:]]\+  ... ... .. ..:..:.. ....$' ${TMUX_POWERLINE_SEG_MAILCOUNT_MBOX_INBOX})
+
+	echo "$count"
+	return 0;
+}
+
+__mac_keychain_get_pass() {
+	result="$(security 2>&1 > /dev/null find-internet-password -ga $1 -s $2)"
+	if [ $? -eq 0 ]; then
+		TMUX_POWERLINE_SEG_MAILCOUNT_GMAIL_PASSWORD=$(echo "$result" | sed -e 's/password: \"\(.*\)\"/\1/g')
+		return 0
+	fi
+	return 1
+}
+
+__count_mailcheck() {
+	count=$(mailcheck -f ${TMUX_POWERLINE_SEG_MAILCOUNT_MAILCHECKRC} | awk '{ if (/new/) { print $3; exit } else { print 0; exit } }')
+	if [ $? -eq 0 ]; then
+		echo "$count"
+		return 0
+	fi
+	return 1;
+}