feat: add network-vpn plugin (only macOS)

Signed-off-by: Tomás Migone <tomasmigone@gmail.com>

INSTALL.md

@@ -48,7 +48,7 @@ To enable plugins set up the `@dracula-plugins` option in you `.tmux.conf` file,
 The order that you define the plugins will be the order on the status bar left to right.
 
 ```bash
-# available plugins: battery, cpu-usage, git, gpu-usage, ram-usage, network, network-bandwidth, network-ping, weather, time
+# available plugins: battery, cpu-usage, git, gpu-usage, ram-usage, network, network-bandwidth, network-ping, network-vpn, weather, time
 set -g @dracula-plugins "cpu-usage gpu-usage ram-usage"
 ```
 
@@ -190,13 +190,13 @@ set -g @dracula-git-disable-status true
 
 Set symbol to use for when branch is up to date with HEAD
 ```bash
-# default is ✓. Avoid using non unicode characters that bash uses like $, * and ! 
+# default is ✓. Avoid using non unicode characters that bash uses like $, * and !
 set -g @dracula-git-show-current-symbol ✓
 ```
 
 Set symbol to use for when branch diverges from HEAD
 ```bash
-# default is unicode !. Avoid bash special characters 
+# default is unicode !. Avoid bash special characters
 set -g @dracula-git-show-diff-symbol !
 ```
 

scripts/dracula.sh

@@ -168,6 +168,11 @@ main()
       script="#($current_dir/network_ping.sh)"
     fi
 
+    if [ $plugin = "network-vpn" ]; then
+      IFS=' ' read -r -a colors <<<$(get_tmux_option "@dracula-network-vpn-colors" "cyan dark_gray")
+      script="#($current_dir/network_vpn.sh)"
+    fi
+
     if [ $plugin = "weather" ]; then
       # wait unit $datafile exists just to avoid errors
       # this should almost never need to wait unless something unexpected occurs

scripts/network_vpn.sh

@@ -0,0 +1,32 @@
+#!/usr/bin/env bash
+# setting the locale, some users have issues with different locales, this forces the correct one
+export LC_ALL=en_US.UTF-8
+
+current_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+source $current_dir/utils.sh
+
+vpn_function() {
+  case $(uname -s) in
+  Linux | Darwin)
+    vpn=$(scutil --nc list | grep Connected)
+
+    if [ -z $vpn ]; then
+      echo ""
+    else
+      echo "VPN"
+    fi
+    ;;
+
+  CYGWIN* | MINGW32* | MSYS* | MINGW*)
+    # TODO - windows compatability
+    ;;
+  esac
+}
+
+main() {
+
+  echo $(vpn_function)
+}
+
+# run main driver
+main