Add load average support

README.md

@@ -60,6 +60,10 @@ This is done by introducing 8 new format strings that can be added to
  - `#{cpu_percentage}` - will show CPU percentage (averaged across cores)
  - `#{cpu_bg_color}` - will change the background color based on the CPU percentage
  - `#{cpu_fg_color}` - will change the foreground color based on the CPU percentage
+ - `#{load}` - will display your current load averages (1, 5 and 15 minutes)
+ - `#{load1}` - will display the load average of the last minute
+ - `#{load5}` - will display the load average of the last 5 minutes
+ - `#{load15}` - will display the load average of the last 15 minutes
  - `#{ram_icon}` - will display a RAM status icon
  - `#{ram_percentage}` - will show RAM percentage (averaged across cores)
  - `#{ram_bg_color}` - will change the background color based on the RAM percentage
@@ -111,6 +115,8 @@ Here are all available options with their default values:
 @cpu_high_bg_color "#[bg=red]" # background color when cpu is high
 
 @cpu_percentage_format "%3.1f%%" # printf format to use to display percentage
+
+@load_per_cpu_core "false" # if set to "true" the load averages will be divided by the number of CPU cores
 ```
 
 Same options are valid with `@gpu`

cpu.tmux

@@ -13,6 +13,10 @@ cpu_interpolation=(
   "\#{gpu_icon}"
   "\#{gpu_bg_color}"
   "\#{gpu_fg_color}"
+  "\#{load}"
+  "\#{load1}"
+  "\#{load5}"
+  "\#{load15}"
   "\#{ram_percentage}"
   "\#{ram_icon}"
   "\#{ram_bg_color}"
@@ -31,6 +35,10 @@ cpu_commands=(
   "#($CURRENT_DIR/scripts/gpu_icon.sh)"
   "#($CURRENT_DIR/scripts/gpu_bg_color.sh)"
   "#($CURRENT_DIR/scripts/gpu_fg_color.sh)"
+  "#($CURRENT_DIR/scripts/load.sh)"
+  "#($CURRENT_DIR/scripts/load.sh 1)"
+  "#($CURRENT_DIR/scripts/load.sh 5)"
+  "#($CURRENT_DIR/scripts/load.sh 15)"
   "#($CURRENT_DIR/scripts/ram_percentage.sh)"
   "#($CURRENT_DIR/scripts/ram_icon.sh)"
   "#($CURRENT_DIR/scripts/ram_bg_color.sh)"

scripts/load.sh

@@ -0,0 +1,54 @@
+#!/usr/bin/env bash
+
+CURRENT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+
+source "$CURRENT_DIR/helpers.sh"
+
+get_number_of_cores(){
+  if is_osx
+  then
+    sysctl -n hw.ncpu
+  else
+    nproc
+  fi
+}
+
+
+print_load() {
+  local num_cores=1
+  local output
+
+  case "$(get_tmux_option "@load_per_cpu_core")" in
+    true|1|yes)
+      num_cores=$(get_number_of_cores)
+    ;;
+  esac
+
+  output=$(uptime | awk -v num_cores="$num_cores" '{
+    sub(/,$/, "", $(NF-2));
+    sub(/,$/, "", $(NF-1));
+    sub(/,$/, "", $NF);
+    printf "%.2f %.2f %.2f", $(NF-2)/num_cores, $(NF-1)/num_cores, $NF/num_cores
+  }')
+
+  case "$1" in
+    1)
+      output="$(awk '{ print $1 }' <<< "$output")"
+      ;;
+    5)
+      output="$(awk '{ print $2 }' <<< "$output")"
+      ;;
+    15)
+      output="$(awk '{ print $3 }' <<< "$output")"
+      ;;
+  esac
+
+  # Replace commas with dots
+  echo -n "${output//,/.}"
+}
+
+main() {
+  print_load "$@"
+}
+
+main "$@"