From ac781bc58165d89f9cab753d4c1599b689aca583 Mon Sep 17 00:00:00 2001
From: Abhishek Keshri <iam2kabhishek@gmail.com>
Date: Tue, 9 Aug 2022 06:28:34 +0530
Subject: [PATCH] Add ram_info.sh

---
 scripts/ram_info.sh | 76 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 76 insertions(+)
 create mode 100755 scripts/ram_info.sh

diff --git a/scripts/ram_info.sh b/scripts/ram_info.sh
new file mode 100755
index 0000000..25677e2
--- /dev/null
+++ b/scripts/ram_info.sh
@@ -0,0 +1,76 @@
+#!/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
+
+get_percent()
+{
+  case $(uname -s) in
+    Linux)
+      total_mem_gb=$(free -g | awk '/^Mem/ {print $2}')
+      used_mem=$(free -g | awk '/^Mem/ {print $3}')
+      total_mem=$(free -h | awk '/^Mem/ {print $2}')
+      if (( $total_mem_gb == 0)); then
+        memory_usage=$(free -m | awk '/^Mem/ {print $3}')
+        total_mem_mb=$(free -m | awk '/^Mem/ {print $2}')
+        echo $memory_usage\M\B/$total_mem_mb\M\B
+      elif (( $used_mem == 0 )); then
+        memory_usage=$(free -m | awk '/^Mem/ {print $3}')
+        echo $memory_usage\M\B/$total_mem_gb\G\B
+      else
+        memory_usage=$(free -g | awk '/^Mem/ {print $3}')
+        echo $memory_usage\G\B/$total_mem_gb\G\B
+      fi
+      ;;
+
+    Darwin)
+      # Get used memory blocks with vm_stat, multiply by page size to get size in bytes, then convert to MiB
+      used_mem=$(vm_stat | grep ' active\|wired ' | sed 's/[^0-9]//g' | paste -sd ' ' - | awk -v pagesize=$(pagesize) '{printf "%d\n", ($1+$2) * pagesize / 1048576}')
+      total_mem=$(system_profiler SPHardwareDataType | grep "Memory:" | awk '{print $2 $3}')
+      if (( $used_mem < 1024 )); then
+        echo $used_mem\M\B/$total_mem
+      else
+        memory=$(($used_mem/1024))
+        echo $memory\G\B/$total_mem
+      fi
+      ;;
+
+    FreeBSD)
+      # Looked at the code from neofetch
+      hw_pagesize="$(sysctl -n hw.pagesize)"
+      mem_inactive="$(($(sysctl -n vm.stats.vm.v_inactive_count) * hw_pagesize))"
+      mem_unused="$(($(sysctl -n vm.stats.vm.v_free_count) * hw_pagesize))"
+      mem_cache="$(($(sysctl -n vm.stats.vm.v_cache_count) * hw_pagesize))"
+
+      free_mem=$(((mem_inactive + mem_unused + mem_cache) / 1024 / 1024))
+      total_mem=$(($(sysctl -n hw.physmem) / 1024 / 1024))
+      used_mem=$((total_mem - free_mem))
+      echo $used_mem
+      if (( $used_mem < 1024 )); then
+        echo $used_mem\M\B/$total_mem
+      else
+        memory=$(($used_mem/1024))
+        echo $memory\G\B/$total_mem
+      fi
+      ;;
+
+    CYGWIN*|MINGW32*|MSYS*|MINGW*)
+      # TODO - windows compatability
+      ;;
+  esac
+}
+
+main()
+{
+  # storing the refresh rate in the variable RATE, default is 5
+  RATE=$(get_tmux_option "@tmux2k-refresh-rate" 5)
+  ram_label=$(get_tmux_option "@tmux2k-ram-usage-label" "")
+  ram_percent=$(get_percent)
+  echo "$ram_label $ram_percent"
+  sleep $RATE
+}
+
+#run main driver
+main