A Terraform wrapper that allows use of `-exclude=` arguments to skip slow resources

tf.sh

#!/bin/bash
#description     :This script will make a header for a bash script.
#usage           :tf plan -exclude=route53 -exclude=s3
#requirements    :Install Terraform

get_local_state() {
  # List all Terraform resource, data, and module objects in a directory.

  # Note: This ignores 'module' objects!
  state="$(grep -rho --include="*.tf" -E "^(resource|data).*\"" .)"

  # Remove "resource"
  state="${state//resource /}"
  # Remove quotes
  state="${state//\"/}"
  # Replace spaces for dot notation
  state="${state// /.}"

  echo $state
}

ls() {
  # Shows combined list of local and remote resource, data, and module objects.

  local_state=$(get_local_state)
  remote_state=$(terraform state list)

  # Merge states
  combined_state=("${local_state[@]}" "${remote_state[@]}")

  # Deduplicate
  combined_state=$(echo "${combined_state[@]}" | sort | uniq)

  echo $combined_state
}

exclude() {
  # Generates -target arguments for all tf objects minus those specified.

  targets=()
  for t in $(ls); do
    for exc in $@; do
      [[ $t == *"$exc"* ]] && continue 2
    done
    targets+=(-target="$t")
  done

  echo ${targets[@]}
}

parse_exclude_args() {
  # Parses -exclude and turns it into the equivalent list of -target arguments.

  excluded=()

  for arg in "$@"
  do
    case $arg in
      -exclude=*)
      arg="${arg/ /=}"
      excluded+=("${arg#*=}")
      shift # Remove -exclude= from processing
      ;;
    esac
  done

  # Flip excluded to -include args for terraform
  echo "$(exclude ${excluded[@]}) $@"
}

plan() {
  args="$(parse_exclude_args $@)"
  echo "Running 'terraform plan' with arguments: $args"
  echo
  terraform plan $args
}

apply() {
  args="$(parse_exclude_args $@)"
  echo "Running 'terraform apply' with arguments: $args"
  echo
  terraform apply $args
}

"$@"