autoupdater-wifi-fallback: Make more verbose

gluon-ffbs-autoupdater-wifi-fallback/luasrc/usr/sbin/autoupdater-wifi-fallback

@@ -32,14 +32,20 @@ end
 
 local function preflight_check()
   if not uci:get_bool(configname, 'settings', 'enabled') then
+    io.popen('logger -s -t autoupdater-wifi-fallback -p local0.info "preflight: wifi-fallback not enabled"')
     return false
   end
+  io.popen('logger -s -t autoupdater-wifi-fallback -p local0.info "preflight: wifi-fallback enabled"')
   if not uci:get_bool('autoupdater', 'settings', 'enabled') then
+    io.popen('logger -s -t autoupdater-wifi-fallback -p local0.info "preflight: autoupdater not enabled"')
     return false
   end
+  io.popen('logger -s -t autoupdater-wifi-fallback -p local0.info "preflight: autoupdater enabled"')
   if tonumber(autil.read_file('/proc/uptime'):match('^([^ ]+) ')) < min_uptime_secs then
+    io.popen('logger -s -t autoupdater-wifi-fallback -p local0.info "preflight: uptime too short"')
     return false
   end
+  io.popen('logger -s -t autoupdater-wifi-fallback -p local0.info "preflight: uptime long enough"')
 
   return true
 end
@@ -48,6 +54,7 @@ local function connectivity_check()
   -- connectivity check against updateserver
   for _, host in ipairs(autil.get_update_hosts(branch_name)) do
     if os.execute('ping -w2 -c1 ' .. host .. ' > /dev/null 2>&1') == 0 then
+      io.popen('logger -s -t autoupdater-wifi-fallback -p local0.info "Connectivity Check: Success"')
       return true
     end
   end
@@ -103,7 +110,13 @@ if not uci:get('autoupdater', branch_name) then
   os.exit(1)
 end
 
-if (force or preflight_check()) and not connectivity_check() then
+pfc = preflight_check()
+coc = connectivity_check()
+io.popen('logger -s -t autoupdater-wifi-fallback -p local0.info "args:force=' .. tostring(force) .. '"')
+io.popen('logger -s -t autoupdater-wifi-fallback -p local0.info "preflight_check()=' .. tostring(pfc) .. '"')
+io.popen('logger -s -t autoupdater-wifi-fallback -p local0.info "connectivity_check()=' .. tostring(coc) .. '"')
+
+if (force or pfc) and not coc then
   local offset = 2 * 3600
   local unreachable_since = os.time()
   if not uci:get('autoupdater-wifi-fallback', 'settings', 'unreachable_since') then
@@ -128,6 +141,7 @@ if (force or preflight_check()) and not connectivity_check() then
     revert_to_standard_mode()
   end
 else
+  io.popen('logger -s -t autoupdater-wifi-fallback -p local0.info "Nothing to do. Cleaning up."')
   uci:delete(configname, 'settings', 'unreachable_since')
   uci:delete(configname, 'settings', 'last_run')
   uci:save(configname)