Bash: Collect HBA/HCA information for facter

gistfile1.txt

#!/bin/bash
# Produce custom facts about HBA/HCA cards for facter
# This file should be executable in /etc/facter/facts.d/

# Look for Mellanox, Emulex, and QLogic cards
varq=$(lspci | awk '/[Mm]ellanox/ {
        printf "mellanox=%s\n", $1 }
    /[Ee]mulex/ {
        printf "emulex=%s\n", $1 }
    /[Qq][Ll]ogic/ {
        printf "qlogic=%s\n", $1 }')

# Convert to array
qarr=($varq)

if [ ${#qarr[@]} -eq 0 ]; then
    exit 0
fi

function vitalinfo() {
    #Need to pass HBA, Address, and Counter
    hbca=$1
    addy=$2
    counter=$3

    echo "hba_${hbca}${counter}_address=$addy"
	# The gsub() are just thee to strip off the leading space
    lspci -vv -s $addy | awk -v ctr=$counter -v hba=$hbca -F: '
    /Product Name/ {
      gsub(/^ /, "", $2)
      printf "hba_%s%d_name=%s\n", hba, ctr, $2 }
    /Part number/ {
      gsub(/^ /, "", $2)
      printf "hba_%s%d_part=%s\n", hba, ctr, $2 }
    /Serial number/ {
      gsub(/^ /, "", $2)
      printf "hba_%s%d_serial=%s\n",hba, ctr, $2 }'
}

counter=0
for i in ${qarr[@]}; do
	# If this is the first occurrence of a new HBA, reset counter to 0
	if [[ $hba != ${i%=*} ]]; then
        counter=0
    fi
    # Sprinkle some pattern-matching magic on it
    hba=${i%=*}
    addr=${i#*=}
    # The idea here is to only check the first function
    # of a PCIe card (XX:XX.0)
    if [[ ${addr:(-1)} -eq 0 ]]; then
        vitalinfo $hba $addr $counter
        ((counter++))
    fi
done