#!/usr/bin/env bash
# SPDX-FileCopyrightText: 2022 Patrick Spek
#
# SPDX-License-Identifier: AGPL-3.0-or-later
subcommand() {
local load_1
local load_5
local load_15
local memory_free
local memory_total
local memory_used
local storage_free
local storage_total
local storage_used
local uptime
# Set the variables which are compatible on every POSIX-compliant system
storage_used="$(df | awk '/[0-9]+/ { sum += $3 } END { print sum }')"
storage_free="$(df | awk '/[0-9]+/ { sum += $4 } END { print sum }')"
storage_total=$(( storage_used + storage_free ))
# And do platform-specific magic
case "${BASHTARD_PLATFORM[os]}" in
freebsd)
load_1="$(uptime | awk -F' *,? *' '{ print $(NF-2) }')"
load_5="$(uptime | awk -F' *,? *' '{ print $(NF-1) }')"
load_15="$(uptime | awk -F' *,? *' '{ print $NF }')"
memory_total=$(( $(sysctl -n hw.physmem) / 1024 ))
memory_used=$(( ( $(sysctl -n vm.stats.vm.v_active_count) * $(sysctl -n hw.pagesize) ) / 1024 ))
memory_free=$(( memory_total - memory_used))
uptime=$(( "$(date +%s)" - "$(sysctl -a | awk '/^kern.boottime/ { print substr($5, 0, length($5)-1) }')" ))
;;
*)
load_1="$(awk '{ print $1 }' < /proc/loadavg)"
load_5="$(awk '{ print $2 }' < /proc/loadavg)"
load_15="$(awk '{ print $3 }' < /proc/loadavg)"
memory_total="$(awk '/MemTotal/ { print $2 }' < /proc/meminfo)"
memory_free="$(awk '/MemAvailable/ { print $2 }' < /proc/meminfo)"
memory_used=$(( memory_total - memory_free ))
uptime="$(awk -F. '{ print $1 }' < /proc/uptime)"
;;
esac
# For any value that isn't set, just default to 0 to avoid all sorts of errors
[[ -z "$load_1" ]] && load_1=0
[[ -z "$load_5" ]] && load_5=0
[[ -z "$load_15" ]] && load_15=0
[[ -z "$memory_free" ]] && memory_free=0
[[ -z "$memory_total" ]] && memory_total=0
[[ -z "$memory_used" ]] && memory_used=0
[[ -z "$storage_free" ]] && storage_free=0
[[ -z "$storage_total" ]] && storage_total=0
[[ -z "$storage_used" ]] && storage_used=0
[[ -z "$uptime" ]] && uptime=0
# Print the values that can be set by package maintainers
printf "%-15s %s\n" "etcdir" "$BASHTARD_ETCDIR"
printf "%-15s %s\n" "libdir" "$BASHTARD_LIBDIR"
printf "%-15s %s\n" "sharedir" "$BASHTARD_SHAREDIR"
# Print all the discovered platform information
for key in "${!BASHTARD_PLATFORM[@]}"
do
printf "%-15s %s\n" "$key" "${BASHTARD_PLATFORM[$key]}"
done
# Print fun little extras
printf "%-15s %0.1fGi / %0.1fGi\n" "memory" \
"$(awk '{ print($1 / 1024 / 1024) }' <<< "$memory_used")" \
"$(awk '{ print($1 / 1024 / 1024) }' <<< "$memory_total")"
printf "%-15s %0.1fGb / %0.1fGb\n" "storage" \
"$(awk '{ print($1 / 1024 / 1024) }' <<< "$storage_used")" \
"$(awk '{ print($1 / 1024 / 1024) }' <<< "$storage_total")"
printf "%-15s %0.2f %0.2f %0.2f\n" "load" \
"$load_1" \
"$load_5" \
"$load_15"
printf "%-15s %dd %02dh %02dm %02ds\n" "uptime" \
"$(( uptime / 60 / 60 / 24 ))" \
"$(( uptime / 60 / 60 % 24 ))" \
"$(( uptime / 60 % 60 ))" \
"$(( uptime % 60 ))"
}