Add new segment vpn.sh

fixes #383

segments/vpn.sh

@@ -0,0 +1,122 @@
+# shellcheck shell=bash
+# Prints local vpn tunnel address
+TMUX_POWERLINE_SEG_VPN_DISPLAY_MODE="${TMUX_POWERLINE_SEG_VPN_DISPLAY_MODE:-both}"
+TMUX_POWERLINE_SEG_VPN_NICS="${TMUX_POWERLINE_SEG_VPN_NICS:-^u?tun[0-9]+$}"
+TMUX_POWERLINE_SEG_VPN_SYMBOL="${TMUX_POWERLINE_SEG_VPN_SYMBOL:-󱠾 }"
+TMUX_POWERLINE_SEG_VPN_SYMBOL_COLOUR="${TMUX_POWERLINE_SEG_VPN_SYMBOL_COLOUR:-255}"
+TMUX_POWERLINE_SEG_VPN_DISPLAY_SEPARATOR="${TMUX_POWERLINE_SEG_VPN_DISPLAY_SEPARATOR:-󰿟}"
+
+
+run_segment() {
+	__process_settings
+	read -r -a nics < <(echo "${TMUX_POWERLINE_SEG_VPN_NICS}")
+
+	# output variables
+	display_nic_name=""
+	display_nic_ip=""
+
+	# different handling for mac/bsd and linux
+	if shell_is_bsd || shell_is_osx; then
+		# iterate through interface list
+		while read -r line; do
+			# check if line is interface
+			if [[ "$line" =~ ^[a-zA-Z0-9_-]+:\ flags= ]]; then
+				# in case we had a matching name or ip before, reset.
+				display_nic_name=""
+				display_nic_ip=""
+
+				# we only need the part before the first ":"
+				nic="${line/:*/}"
+				for _cnic in "${nics[@]}"; do
+					if [[ "$nic" =~ $_cnic ]]; then
+						display_nic_name="$nic"
+						break
+					fi
+				done
+
+			fi
+			# only proceed if we match inet line and already have a name set
+			if [[ "$line" =~ inet\ [0-9.]+ ]] && [ "$display_nic_name" != "" ]; then
+				read -r _unused display_nic_ip _unused < <(echo "$line")
+				break
+			fi
+		done < <(ifconfig)
+
+	else
+		while read -r line; do
+			# check if line is interface
+			if [[ "$line" =~ ^[0-9]+: ]]; then
+				# in case we had a matching name or ip before, reset.
+				display_nic_name=""
+				display_nic_ip=""
+
+				read -r _unused nic _unused < <(echo "$line")
+				nic="${nic/:*/}"
+				for _cnic in "${nics[@]}"; do
+					if [[ "$nic" =~ $_cnic ]]; then
+						display_nic_name="$nic"
+						break
+					fi
+				done
+			fi
+
+			# only proceed if we match inet line and already have a name set
+			if [[ "$line" =~ inet\ [0-9.]+\/[0-9]+ ]] && [ "$display_nic_name" != "" ]; then
+				read -r _unused _ip _unused < <(echo "$line")
+				display_nic_ip="${_ip/\/*/}"
+				break
+			fi
+		done < <(ip a)
+	fi
+
+	if [ -n "${display_nic_name}" ] && [ -n "${display_nic_ip}" ]; then
+		display="#[fg=colour${TMUX_POWERLINE_SEG_VPN_SYMBOL_COLOUR}]${TMUX_POWERLINE_SEG_VPN_SYMBOL}#[fg=${TMUX_POWERLINE_CUR_SEGMENT_FG}]"
+		if [ "${TMUX_POWERLINE_SEG_VPN_DISPLAY_MODE}" = "both" ]; then
+			echo -n "${display}${display_nic_name}${TMUX_POWERLINE_SEG_VPN_DISPLAY_SEPARATOR}${display_nic_ip}"
+		elif [ "${TMUX_POWERLINE_SEG_VPN_DISPLAY_MODE}" = "ip" ]; then
+			echo -n "${display}${display_nic_ip}"
+		elif [ "${TMUX_POWERLINE_SEG_VPN_DISPLAY_MODE}" = "name" ]; then
+			echo -n "${display}${display_nic_name}"
+		fi
+	fi
+}
+
+generate_segmentrc() {
+	read -r -d '' rccontents << EORC
+# Mode for VPN segment {"both", "ip", "name"}. both: Show NIC/IP; ip: Show only IP; name: Show only NIC name
+# export TMUX_POWERLINE_SEG_VPN_DISPLAY_MODE="${TMUX_POWERLINE_SEG_VPN_DISPLAY_MODE}"
+# Space separated list of tunnel interface names. First match is being used. substring match, regexp can be used.
+# Examples:
+# export TMUX_POWERLINE_SEG_VPN_NICS="tun" # will match 'tun0', 'utun0', 'itun', 'tun08127387'
+# export TMUX_POWERLINE_SEG_VPN_NICS="tun0 tuntun" # will match 'tun0', 'utun0', 'tuntun'
+# export TMUX_POWERLINE_SEG_VPN_NICS="^tun0$ ^tun1$" # exactly 'tun0' and 'tun1'
+# Default:
+# export TMUX_POWERLINE_SEG_VPN_NICS='${TMUX_POWERLINE_SEG_VPN_NICS}'
+# Symbol to use for vpn tunnel.
+# export TMUX_POWERLINE_SEG_VPN_SYMBOL="${TMUX_POWERLINE_SEG_VPN_SYMBOL}"
+# Colour for vpn tunnel symbol
+# export TMUX_POWERLINE_SEG_VPN_SYMBOL_COLOUR="${TMUX_POWERLINE_SEG_VPN_SYMBOL_COLOUR}"
+# Symbol for separator
+# export TMUX_POWERLINE_SEG_VPN_DISPLAY_SEPARATOR="${TMUX_POWERLINE_SEG_VPN_DISPLAY_SEPARATOR}"
+EORC
+	echo "$rccontents"
+}
+
+__process_settings() {
+	if [ -z "$TMUX_POWERLINE_SEG_VPN_DISPLAY_MODE" ]; then
+		export TMUX_POWERLINE_SEG_VPN_DISPLAY_MODE="${TMUX_POWERLINE_SEG_VPN_DISPLAY_MODE}"
+	fi
+	if [ -z "$TMUX_POWERLINE_SEG_VPN_NICS" ]; then
+		export TMUX_POWERLINE_SEG_VPN_NICS="${TMUX_POWERLINE_SEG_VPN_NICS}"
+	fi
+	if [ -z "$TMUX_POWERLINE_SEG_VPN_SYMBOL" ]; then
+		export TMUX_POWERLINE_SEG_VPN_SYMBOL="${TMUX_POWERLINE_SEG_VPN_SYMBOL}"
+	fi
+	if [ -z "$TMUX_POWERLINE_SEG_VPN_SYMBOL_COLOUR" ]; then
+		export TMUX_POWERLINE_SEG_VPN_SYMBOL_COLOUR="${TMUX_POWERLINE_SEG_VPN_SYMBOL_COLOUR}"
+	fi
+	if [ -z "$TMUX_POWERLINE_SEG_VPN_DISPLAY_SEPARATOR" ]; then
+		export TMUX_POWERLINE_SEG_VPN_DISPLAY_SEPARATOR="${TMUX_POWERLINE_SEG_VPN_DISPLAY_SEPARATOR}"
+	fi
+}
+

themes/default.sh

@@ -88,6 +88,7 @@ if [ -z $TMUX_POWERLINE_LEFT_STATUS_SEGMENTS ]; then
 		#"ifstat 30 255" \
 		#"ifstat_sys 30 255" \
 		"lan_ip 24 255 ${TMUX_POWERLINE_SEPARATOR_RIGHT_THIN}" \
+		#"vpn 24 255 ${TMUX_POWERLINE_SEPARATOR_RIGHT_THIN}" \
 		"wan_ip 24 255" \
 		"vcs_branch 29 88" \
 		#"vcs_compare 60 255" \