Add battery.sh

scripts/battery.sh

@@ -0,0 +1,129 @@
+#!/usr/bin/env bash
+# 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
+
+linux_acpi() {
+  arg=$1
+  BAT=$(ls -d /sys/class/power_supply/BAT* | head -1)
+  if [ ! -x "$(which acpi 2> /dev/null)" ];then
+    case "$arg" in
+      status)
+        cat $BAT/status
+        ;;
+
+      percent)
+        cat $BAT/capacity
+        ;;
+
+      *)
+        ;;
+    esac
+  else
+    case "$arg" in
+      status)
+        acpi | cut -d: -f2- | cut -d, -f1 | tr -d ' '
+        ;;
+      percent)
+        acpi | cut -d: -f2- | cut -d, -f2 | tr -d '% '
+        ;;
+      *)
+        ;;
+    esac
+  fi
+}
+
+battery_percent()
+{
+  # Check OS
+  case $(uname -s) in
+    Linux)
+      percent=$(linux_acpi percent)
+      [ -n "$percent" ] && echo " $percent"
+      ;;
+
+    Darwin)
+      echo $(pmset -g batt | grep -Eo '[0-9]?[0-9]?[0-9]%')
+      ;;
+
+    FreeBSD)
+      echo $(apm | sed '8,11d' | grep life | awk '{print $4}')
+      ;;
+
+    CYGWIN*|MINGW32*|MSYS*|MINGW*)
+      # leaving empty - TODO - windows compatability
+      ;;
+
+    *)
+      ;;
+  esac
+}
+
+battery_status()
+{
+  # Check OS
+  case $(uname -s) in
+    Linux)
+      status=$(linux_acpi status)
+      ;;
+
+    Darwin)
+      status=$(pmset -g batt | sed -n 2p | cut -d ';' -f 2 | tr -d " ")
+      ;;
+
+    FreeBSD)
+      status=$(apm | sed '8,11d' | grep Status | awk '{printf $3}')
+      ;;
+
+    CYGWIN*|MINGW32*|MSYS*|MINGW*)
+      # leaving empty - TODO - windows compatability
+      ;;
+
+    *)
+      ;;
+  esac
+
+  case $status in
+    discharging|Discharging)
+      echo ''
+      ;;
+    high)
+      echo ''
+      ;;
+    charging)
+      echo ''
+      ;;
+    *)
+      echo ''
+      ;;
+  esac
+  ### Old if statements didn't work on BSD, they're probably not POSIX compliant, not sure
+  # if [ $status = 'discharging' ] || [ $status = 'Discharging' ]; then
+  # 	echo ''
+  # # elif [ $status = 'charging' ]; then # This is needed for FreeBSD AC checking support
+  # 	# echo 'AC'
+  # else
+  #  	echo 'AC'
+  # fi
+}
+
+main()
+{
+  bat_label=$(get_tmux_option "@tmux2k-battery-label" "")
+  bat_stat=$(battery_status)
+  bat_perc=$(battery_percent)
+
+  if [ -z "$bat_stat" ]; then # Test if status is empty or not
+    echo "$bat_label$bat_perc"
+  elif [ -z "$bat_perc" ]; then # In case it is a desktop with no battery percent, only AC power
+    echo "$bat_label $bat_stat"
+  else
+    echo "$bat_label $bat_stat$bat_perc"
+  fi
+}
+
+#run main driver program
+main
+