improve: cache public ip address

Author: luftaquila

scripts/network-public-ip.sh

@@ -3,15 +3,27 @@
 # 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
+DATAFILE="/tmp/.dracula-tmux-public-ip-data"
+LAST_EXEC_FILE="/tmp/.dracula-tmux-public-ip-last-exec"
+INTERVAL=1200
 
 main() {
-  IP_SERVER="ifconfig.me"
-  ip=$(curl -s "$IP_SERVER")
+  local _current_dir _last _now
+  current_dir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+  _last=$(cat "$LAST_EXEC_FILE" 2>/dev/null || echo 0)
+  _now=$(date +%s)
 
-  IP_LABEL=$(get_tmux_option "@dracula-network-public-ip-label" "")
-  echo "$IP_LABEL $ip"
+  source $current_dir/utils.sh
+
+  if (((_now - _last) > INTERVAL)); then
+    IP_SERVER="ifconfig.me"
+    ip=$(curl -s "$IP_SERVER")
+
+    echo "$(get_tmux_option "@dracula-network-public-ip-label" "") $ip" > "${DATAFILE}"
+    printf '%s' "$_now" > "${LAST_EXEC_FILE}"
+  fi
+
+  cat "${DATAFILE}"
 }
 
 # run the main driver

scripts/weather_wrapper.sh

@@ -2,7 +2,7 @@
 # setting the locale, some users have issues with different locales, this forces the correct one
 export LC_ALL=en_US.UTF-8
 
-DATAFILE="/tmp/.dracula-tmux-data"
+DATAFILE="/tmp/.dracula-tmux-weather-data"
 LAST_EXEC_FILE="/tmp/.dracula-tmux-weather-last-exec"
 INTERVAL=1200