Nomad job formatter (chmox+x and symlink it in your $PATH)

fmtnomad.sh

#!/usr/bin/env bash
set -euo pipefail
IFS=$'\n\t'

#/ Description:
#/    Run Terraform fmt on nomad file to format HCL, and update the file in place.
#/
#/ Arguments:
#/   $1 the nomad flie
#/   --diff if set, then do not write the changes, but show the diff between current and cacnonical format
#/
#/ Sample use:
#/   fmtnomad myjob.nomad
#/   fmtnomad myjob.nomad --diff
#/
#/ Options:
#/   --help: Display this message
#/
#/ Pre-requisites:
#/    Requires Terraform in your path


readonly SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
readonly SCRIPT_NAME="$(basename "$0")"

success() { echo -e "\e[32;1m[SUCCESS]\e[0m $*"; }
info()    { echo -e "\e[34m[INFO]\e[0m    $*"; }
error()   { echo -e "\e[31m[ERROR]\e[0m   $*"; }
usage()   { grep '^#/' "$0" | cut -c4- ; }
expr "$*" : ".*--help" > /dev/null && usage && exit 0

# Inputs
readonly NOMAD_FILE=${1:-""}
readonly ONLY_DIFF=${2:-""}

if [ -z "${NOMAD_FILE}" ]; then
    usage
    error "You must provide a nomad file to format."
    exit 1
fi


readonly TMP_FILE=$(mktemp /tmp/nomad-fmt.XXXXXX)

success_flag=0
cleanup() {
    rm "${TMP_FILE}"
    if [[ ${success_flag} == 0 ]]; then
      error "Not completed successfully."
    fi
}
trap cleanup EXIT

format() {
    # Format to a tempo file then overwrite the source
    cat "${NOMAD_FILE}" | terraform fmt - > "${TMP_FILE}"
    cp "${TMP_FILE}" "${NOMAD_FILE}"

    success_flag=1
    success "${NOMAD_FILE} formatted."
}

diff() {
    # Format to a tempo file then overwrite the source
    cat "${NOMAD_FILE}" | terraform fmt -diff=true -
    success_flag=1
}

if [ -z "${ONLY_DIFF}" ]; then
    format
else
    diff
fi