#!/bin/bash
#
# Purpose : Edit JSON settings files for configure.d items. Source this file.

# Edit a JSON file in place with jq, creating it from $2 if it's missing.
# Leaves the file alone if it isn't valid JSON or jq fails.
edit_json() {
  local file="$1" empty="$2" tmp
  shift 2
  mkdir -p "$(dirname "$file")" || return 1
  [ -f "$file" ] || echo "$empty" > "$file"
  tmp="$(mktemp "$file.XXXXXX")" || return 1
  if jq "$@" "$file" > "$tmp"; then
    mv -f "$tmp" "$file"
  else
    echo "Couldn't change $file; is it valid JSON?"
    rm -f "$tmp"
    return 1
  fi
}