gradle

_gradle()
{
  set +e
  local cur=${COMP_WORDS[COMP_CWORD]}
  _get_comp_words_by_ref -n : cur
  local gradle_cmd="gradle -I /etc/gradle/completion.gradle"

  local cache_dir="${GRADLE_USER_HOME-$HOME/.gradle}/completion"
  mkdir -p $cache_dir
 
  local commands=''

  local gradle_files_checksum='absent'
  if [[ -f build.gradle ]]; then
    gradle_files_checksum="$(pwd | sed 's/\//1/g')-$(stat -c %Y build.gradle)"
  fi
  if [[ -f "$cache_dir/$gradle_files_checksum" ]]; then
    commands=$(cat $cache_dir/$gradle_files_checksum)
  else
    commands=$($gradle_cmd -q bashCompletion | tr '\n' ' ')
    commands=$(echo $commands | sed 's/:/\\:/g')
    echo $commands > $cache_dir/$gradle_files_checksum
  fi
  COMPREPLY=( $(compgen -W "$commands" -- $cur) )
  __ltrim_colon_completions "$cur"
}
complete -F _gradle gradle gradlew