[kvmstats] Some syntax arrangements
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continuous-integration/drone/push Build is passing
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@ -1,40 +1,32 @@
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#!/bin/sh
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set -e
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error () {
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echo "$0": "$@" >&2
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exit 1
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}
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usage () {
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echo 'usage: kvmstats [-a] [-u k|m|g] [-o human|html|csv]' >&2
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echo 'usage:' "$0" '[-a] [-u k|m|g] [-o human|html|csv]' >&2
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exit 1
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}
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for DEP in bc virsh
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do
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command -v $DEP > /dev/null || error $DEP command not found
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command -v "$DEP" > /dev/null || error "$DEP" 'command not found'
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done
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POW=$(echo 1024 ^ 3 | bc)
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FMT=human
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while [ $# -ne 0 ]
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POW="$(echo '1024 ^ 3' | bc)"
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FMT='human'
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while [ "$#" -ne 0 ]
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do
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case $1 in
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case "$1" in
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'-a')
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SHOW_AVAIL=y
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SHOW_AVAIL='y'
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;;
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'-o')
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case $2 in
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'human')
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FMT=human
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;;
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'html')
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FMT=html
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;;
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'csv')
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FMT=csv
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case "$2" in
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'csv'|'html'|'human')
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FMT="$2"
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;;
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*)
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usage
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@ -43,15 +35,15 @@ do
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shift
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;;
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'-u')
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case $2 in
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case "$2" in
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'k')
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POW=$(echo 1024 ^ 1 | bc)
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POW="$(echo '1024 ^ 1' | bc)"
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;;
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'm')
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POW=$(echo 1024 ^ 2 | bc)
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POW="$(echo '1024 ^ 2' | bc)"
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;;
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'g')
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POW=$(echo 1024 ^ 3 | bc)
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POW="$(echo '1024 ^ 3' | bc)"
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;;
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*)
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usage
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@ -73,13 +65,13 @@ do
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# mem
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# libvirt stores memory in KiB, POW must be lowered by 1
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virsh dommemstat "$VM" 2>&- | awk 'BEGIN{ret=1}$1~/^actual$/{print $2 / '$((POW / 1024))';ret=0}END{exit ret}' ||
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virsh dommemstat "$VM" 2> /dev/null | awk 'BEGIN{ret=1}$1~/^actual$/{print $2 / '$((POW / 1024))';ret=0}END{exit ret}' ||
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virsh dumpxml "$VM" | awk -F'[<>]' '$2~/^memory unit/{print $3/'$((POW / 1024))'}'
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# disk
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for BLK in $(virsh domblklist "$VM" | sed '1,2d;/-$/d;/^$/d' | awk '{print $1}')
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do
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virsh domblkinfo "$VM" "$BLK" 2>&-
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virsh domblkinfo "$VM" "$BLK" 2> /dev/null
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done | awk '/Physical:/ { size += $2 } END { print int(size / '${POW}') }'
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# state
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@ -91,7 +83,7 @@ done | xargs -n5 | {
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nproc
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awk '/^MemTotal:/ { print int($2 / '$((POW / 1024))' ) }' /proc/meminfo
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} | xargs -r printf 'AVAILABLE %s %s %s %s\n'
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} | case $FMT in
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} | case "$FMT" in
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'human')
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column -t
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;;
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