Add Wireguard online sync script

1 files changed, 37 insertions, 0 deletions

diff --git a/wg-quick-sync b/wg-quick-sync
new file mode 100755
index 0000000..45fe06d
--- /dev/null
+++ b/wg-quick-sync
@@ -0,0 +1,37 @@
+#!/usr/bin/env bash
+# Update Wireguard running configuration without restart
+
+set -euo pipefail
+
+select_interface() {
+  select interface in $(wg show interfaces); do
+    if [ -z "$interface" ]; then
+      exit 1
+    fi
+    echo "$interface"
+    return
+  done
+}
+
+main() {
+  if [[ $(/usr/bin/id -u) -ne 0 ]]; then
+    sudo "$(realpath "$0")" "$@"
+    exit
+  fi
+
+  local interface
+  if [ $# = 0 ]; then
+    interface=$(select_interface)
+  else
+    interface="$1"
+  fi
+
+  if [ -z "$interface" ]; then
+    echo "No wireguard interface."
+    exit 1
+  fi
+
+  wg syncconf "$interface" <(wg-quick strip "$interface")
+}
+
+main "$@"