Optionally include static routes (and preserve them across upgrades)

files/etc/arednsysupgrade.conf

@@ -13,6 +13,7 @@
 /etc/config.mesh/network_tun
 /etc/config.mesh/aredn
 /etc/aredn_include/swconfig.user
+/etc/aredn_include/static_routes
 /etc/dropbear/dropbear_dss_host_key
 /etc/dropbear/dropbear_rsa_host_key
 /etc/dropbear/authorized_keys

files/etc/config.mesh/network

@@ -47,5 +47,8 @@ config interface wifi_mon
 
 include /etc/aredn_include/swconfig
 
+### Static routes
+include /etc/aredn_include/static_routes
+
 ### Tunnels devices
 include /etc/config.mesh/network_tun

files/usr/local/bin/node-setup

@@ -220,9 +220,11 @@ if do_basic then
                     local out = true
                     local inc = line:match("^include%s+(.*)%s*")
                     if inc then
-                        for iline in io.lines(inc)
-                        do
-                            f:write(iline .. "\n")
+                        if nixio.fs.stat(inc) then
+                            for iline in io.lines(inc)
+                            do
+                                f:write(iline .. "\n")
+                            end
                         end
                         out = false
                     elseif line:match("^[^#]") then