1  #!/usr/bin/env bash
 2  # setting the locale, some users have issues with different locales, this forces the correct one
 3  export LC_ALL=en_US.UTF-8
 4  
 5  current_dir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 6  source $current_dir/utils.sh
 7  
 8  get_ratio()
 9  {
10    case $(uname -s) in
11      Linux)
12        usage="$(free -h | awk 'NR==2 {print $3}')"
13        total="$(free -h | awk 'NR==2 {print $2}')"
14        formated="${usage}/${total}"
15        
16        echo "${formated//i/B}"
17        ;;
18  
19      Darwin)
20        # Get used memory blocks with vm_stat, multiply by page size to get size in bytes, then convert to MiB
21        used_mem=$(vm_stat | grep ' active\|wired\|compressor\|speculative' | sed 's/[^0-9]//g' | paste -sd ' ' - | awk -v pagesize=$(pagesize) '{printf "%d\n", ($1+$2+$3+$5) * pagesize / 1048576}')
22        # System Profiler performs an activation lock check, which can result in
23        # time outs or a lagged response. (~10 seconds)
24        # total_mem=$(system_profiler SPHardwareDataType | grep "Memory:" | awk '{print $2 $3}')
25        total_mem=$(sysctl -n hw.memsize | awk '{print $0/1024/1024/1024 " GB"}')
26        if ((used_mem < 1024 )); then
27          echo "${used_mem}MB/$total_mem"
28        else
29          memory=$((used_mem/1024))
30          echo "${memory}GB/$total_mem"
31        fi
32        ;;
33  
34      FreeBSD)
35        # Looked at the code from neofetch
36        hw_pagesize="$(sysctl -n hw.pagesize)"
37        mem_inactive="$(($(sysctl -n vm.stats.vm.v_inactive_count) * hw_pagesize))"
38        mem_unused="$(($(sysctl -n vm.stats.vm.v_free_count) * hw_pagesize))"
39        mem_cache="$(($(sysctl -n vm.stats.vm.v_cache_count) * hw_pagesize))"
40  
41        free_mem=$(((mem_inactive + mem_unused + mem_cache) / 1024 / 1024))
42        total_mem=$(($(sysctl -n hw.physmem) / 1024 / 1024))
43        used_mem=$((total_mem - free_mem))
44        echo $used_mem
45        if ((used_mem < 1024 )); then
46          echo "${used_mem}MB/$total_mem"
47        else
48          memory=$((used_mem/1024))
49          echo "${memory}GB/$total_mem"
50        fi
51        ;;
52  
53      OpenBSD)
54        # vmstat -s | grep "pages managed" | sed -ne 's/^ *\([0-9]*\).*$/\1/p'
55        # Looked at the code from neofetch
56        hw_pagesize="$(pagesize)"
57        used_mem=$(( ( 
58  $(vmstat -s | grep "pages active$" | sed -ne 's/^ *\([0-9]*\).*$/\1/p') +
59  $(vmstat -s | grep "pages inactive$" | sed -ne 's/^ *\([0-9]*\).*$/\1/p') +
60  $(vmstat -s | grep "pages wired$" | sed -ne 's/^ *\([0-9]*\).*$/\1/p') +
61  $(vmstat -s | grep "pages zeroed$" | sed -ne 's/^ *\([0-9]*\).*$/\1/p') +
62  0) * hw_pagesize / 1024 / 1024 ))
63        total_mem=$(($(sysctl -n hw.physmem) / 1024 / 1024))
64        #used_mem=$((total_mem - free_mem))
65        total_mem=$(($total_mem/1024))
66        if (( $used_mem < 1024 )); then
67          echo $used_mem\M\B/$total_mem\G\B
68        else
69          memory=$(($used_mem/1024))
70          echo $memory\G\B/$total_mem\G\B
71        fi
72        ;;
73  
74      CYGWIN*|MINGW32*|MSYS*|MINGW*)
75        # TODO - windows compatability
76        ;;
77    esac
78  }
79  
80  main()
81  {
82    ram_label=$(get_tmux_option "@dracula-ram-usage-label" "RAM")
83    ram_ratio=$(get_ratio)
84    echo "$ram_label $ram_ratio"
85  }
86  
87  #run main driver
88  main