Adding Swap

README.md

@@ -57,7 +57,7 @@ Example:
 
 ```shell
 # in .tmux.conf
-set -g status-right '#{cpu_bg_color} CPU: #{cpu_icon} #{cpu_percentage} | %a %h-%d %H:%M '
+set -g status-right '#{cpu_bg_color} CPU: #{cpu_icon} #{cpu_percentage} | #{ram_bg_color} RAM: #{ram_icon} #{ram_percentage} | #{swap_bg_color} SWAP: #{swap_icon} #{swap_percentage} | %a %h-%d %H:%M '
 ```
 
 ### Supported Options
@@ -93,6 +93,13 @@ GPU equivalents also exist:
 - `#{gpu_temp_bg_color}` - will change the background color based on the GPU temperature
 - `#{gpu_temp_fg_color}` - will change the foreground color based on the GPU temperature
 
+SWAP percentage:
+
+- `#{swap_icon}` - will display a SWAP status icon
+- `#{swap_percentage}` - will show SWAP percentage (averaged across cores)
+- `#{swap_bg_color}` - will change the background color based on the SWAP percentage
+- `#{swap_fg_color}` - will change the foreground color based on the SWAP percentage
+
 ## Examples
 
 CPU usage lower than 30%:<br/>

cpu.tmux

@@ -29,6 +29,10 @@ cpu_interpolation=(
   "\#{gpu_temp_icon}"
   "\#{gpu_temp_bg_color}"
   "\#{gpu_temp_fg_color}"
+  "\#{swap_percentage}"
+  "\#{swap_percentage_icon}"
+  "\#{swap_percentage_bg_color}"
+  "\#{swap_percentage_fg_color}"
 )
 cpu_commands=(
   "#($CURRENT_DIR/scripts/cpu_percentage.sh)"
@@ -55,6 +59,10 @@ cpu_commands=(
   "#($CURRENT_DIR/scripts/gpu_temp_icon.sh)"
   "#($CURRENT_DIR/scripts/gpu_temp_bg_color.sh)"
   "#($CURRENT_DIR/scripts/gpu_temp_fg_color.sh)"
+  "#($CURRENT_DIR/scripts/swap_percentage.sh)"
+  "#($CURRENT_DIR/scripts/swap_icon.sh)"
+  "#($CURRENT_DIR/scripts/swap_bg_color.sh)"
+  "#($CURRENT_DIR/scripts/swap_fg_color.sh)"
 )
 
 set_tmux_option() {

scripts/swap_bg_color.sh

@@ -0,0 +1,37 @@
+#!/usr/bin/env bash
+
+CURRENT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+
+source "$CURRENT_DIR/helpers.sh"
+
+swap_low_bg_color=""
+swap_medium_bg_color=""
+swap_high_bg_color=""
+
+swap_low_default_bg_color="#[bg=green]"
+swap_medium_default_bg_color="#[bg=yellow]"
+swap_high_default_bg_color="#[bg=red]"
+
+get_bg_color_settings() {
+  swap_low_bg_color=$(get_tmux_option "@swap_low_bg_color" "$swap_low_default_bg_color")
+  swap_medium_bg_color=$(get_tmux_option "@swap_medium_bg_color" "$swap_medium_default_bg_color")
+  swap_high_bg_color=$(get_tmux_option "@swap_high_bg_color" "$swap_high_default_bg_color")
+}
+
+print_bg_color() {
+  local swap_percentage=$($CURRENT_DIR/swap_percentage.sh | sed -e 's/%//')
+  local load_status=$(load_status $swap_percentage)
+  if [ $load_status == "low" ]; then
+    echo "$swap_low_bg_color"
+  elif [ $load_status == "medium" ]; then
+    echo "$swap_medium_bg_color"
+  elif [ $load_status == "high" ]; then
+    echo "$swap_high_bg_color"
+  fi
+}
+
+main() {
+  get_bg_color_settings
+  print_bg_color
+}
+main

scripts/swap_fg_color.sh

@@ -0,0 +1,37 @@
+#!/usr/bin/env bash
+
+CURRENT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+
+source "$CURRENT_DIR/helpers.sh"
+
+swap_low_fg_color=""
+swap_medium_fg_color=""
+swap_high_fg_color=""
+
+swap_low_default_fg_color="#[fg=green]"
+swap_medium_default_fg_color="#[fg=yellow]"
+swap_high_default_fg_color="#[fg=red]"
+
+get_fg_color_settings() {
+  swap_low_fg_color=$(get_tmux_option "@swap_low_fg_color" "$swap_low_default_fg_color")
+  swap_medium_fg_color=$(get_tmux_option "@swap_medium_fg_color" "$swap_medium_default_fg_color")
+  swap_high_fg_color=$(get_tmux_option "@swap_high_fg_color" "$swap_high_default_fg_color")
+}
+
+print_fg_color() {
+  local swap_percentage=$($CURRENT_DIR/swap_percentage.sh | sed -e 's/%//')
+  local load_status=$(load_status $swap_percentage)
+  if [ $load_status == "low" ]; then
+    echo "$swap_low_fg_color"
+  elif [ $load_status == "medium" ]; then
+    echo "$swap_medium_fg_color"
+  elif [ $load_status == "high" ]; then
+    echo "$swap_high_fg_color"
+  fi
+}
+
+main() {
+  get_fg_color_settings
+  print_fg_color
+}
+main

scripts/swap_icon.sh

@@ -0,0 +1,39 @@
+#!/usr/bin/env bash
+
+CURRENT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+
+source "$CURRENT_DIR/helpers.sh"
+
+# script global variables
+swap_low_icon=""
+swap_medium_icon=""
+swap_high_icon=""
+
+swap_low_default_icon="="
+swap_medium_default_icon="≡"
+swap_high_default_icon="≣"
+
+# icons are set as script global variables
+get_icon_settings() {
+  swap_low_icon=$(get_tmux_option "@swap_low_icon" "$swap_low_default_icon")
+  swap_medium_icon=$(get_tmux_option "@swap_medium_icon" "$swap_medium_default_icon")
+  swap_high_icon=$(get_tmux_option "@swap_high_icon" "$swap_high_default_icon")
+}
+
+print_icon() {
+  local swap_percentage=$($CURRENT_DIR/swap_percentage.sh | sed -e 's/%//')
+  local load_status=$(load_status $swap_percentage)
+  if [ $load_status == "low" ]; then
+    echo "$swap_low_icon"
+  elif [ $load_status == "medium" ]; then
+    echo "$swap_medium_icon"
+  elif [ $load_status == "high" ]; then
+    echo "$swap_high_icon"
+  fi
+}
+
+main() {
+  get_icon_settings
+  print_icon "$1"
+}
+main

scripts/swap_percentage.sh

@@ -0,0 +1,26 @@
+#!/usr/bin/env bash
+
+CURRENT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+
+source "$CURRENT_DIR/helpers.sh"
+
+swap_percentage_format="%3.1f%%"
+
+print_swap_percentage() {
+  swap_percentage_format=$(get_tmux_option "@swap_percentage_format" "$swap_percentage_format")
+
+  if command_exists "free"; then
+    free -t | awk 'NR == 3 {printf("Current Swap Utilization is : %.2f%"), $3/$2*100}'
+  elif command_exists "cuda-smi"; then
+    free -t | awk 'NR == 3 {printf("Current Swap Utilization is : %.2f%"), $3/$2*100}'
+  else
+    echo "No SWAP"
+    return
+  fi
+  echo "$loads" | awk -v format="$swap_percentage_format" '{used+=$1; tot+=$2} END {printf format, 100*$1/$2}'
+}
+
+main() {
+  print_swap_percentage
+}
+main