mas/script/release

#!/bin/bash -e

PLIST_FILE="$PWD/App/mas-cli-Info.plist"

main() {
  VERSION_NUMBER=$(update_version_number)

  git add "$PLIST_FILE"
  git commit -eF <(commit_message)

  git tag -a "v${VERSION_NUMBER}"

  echo "Finalise release with: git push --tags"
}

commit_message() {
  cat <<COMMIT_MESSAGE
Preparing release ${VERSION_NUMBER}
#
# To abort: Empty this file, Save and exit
COMMIT_MESSAGE
}

update_version_number() {
  local version_number

  # Get the current CFBundleShortVersionString
  version_number=$(read_version_number)

  # Ask for the new one
  new_version_number=$(prompt "Enter version number [${version_number}]: ")
  
  if [[ -z $new_version_number ]]; then
    echo "No version number specified"
    return 1
  fi

  # Put it back
  write_version_number "${new_version_number}"
  echo "${new_version_number}"
}

prompt() {
  local input
  echo -n "==> $1" >&2
  read -r input
  echo "$input"
}

write_version_number() {
  local value
  value=$1; shift
  write_plist "CFBundleShortVersionString" "${value}"
}

read_version_number() {
  read_plist "CFBundleShortVersionString" 
}

read_plist() {
  local key
  key=$1; shift
  /usr/libexec/PlistBuddy -c "Print :${key}" "${PLIST_FILE}"
}

write_plist() {
  local key
  local value
  key=$1; shift
  value=$1; shift
  echo "Setting ${key} to ${value}" >&2
  /usr/libexec/PlistBuddy -c "Set :${key} ${value}" "${PLIST_FILE}"
}

main