app-expand

#!/usr/bin/env bash
# macos-scripts/app-expand

set -uo pipefail
# -u prevent using undefined variables
# -o pipefail force pipelines to fail on first non-zero status code

IFS=$'\n\t'
# Set Internal Field Separator to newlines and tabs
# This makes bash consider newlines and tabs as separating words
# See: http://redsymbol.net/articles/unofficial-bash-strict-mode/

### Define Colours ###
tput sgr0; 
# reset colors


function usage {

  echo -e "\\n Expand Application Bundles (.app)"
  echo -e "Recursively checks app bundles for Mach-O files"
  echo "   ./app-expand example.app"
  
  exit 0
}


function file_search {
  while IFS=$'\n' read -r file; do 
      files+=("${file}"); 
    done < <(find "${arg}" -type f)
}


function macho_check {

  echo "Mach-O Files: "

  for file in "${files[@]}"; do
    if file "${file}" | grep -q 'Mach-O'; then
      macho_files+=("${file}");
      shasum -a 256 "${file}"
    fi
  done
}


function main {
  declare -a files
  declare -a macho_files

  arg=${1:-"usage"}

  if [[ "${arg}" =~ ^(usage|help|-h|--help|🤷‍♂️|🤷‍♀️|"¯\_(ツ)_/¯")$ ]]; then
    usage
  fi

  file_search
  macho_check
}

main "$@"