Bash completion for bundle

bunde_complete.sh

_bundler_complete()
{
    if [[ ! `which bundle` ]]; then
        return
    fi

    local cur prev commands
    commands="help install update package exec config check list show outdated console open viz init gem platform"
    cur="${COMP_WORDS[COMP_CWORD]}"
    prev="${COMP_WORDS[COMP_CWORD-1]}"
    
    if [[ "${cur}" == -* ]]; then
        local bundle_options="--no-color --verbose"
        COMPREPLY=( $(compgen -W "${bundle_options}" -- ${cur}) )
        return 0
    fi

    case "${prev}" in
        "rake")
            if [[ ! -e Rakefile ]]; then
                return
            fi
            local rake_options=$(bundle exec rake -T | awk '{print $2}' | xargs)
            COMPREPLY=( $(compgen -W "${rake_options}" -- ${cur}) )
            return 0
            ;;
        "exec")
            bin_folder=( $(find . -name 'bin' | xargs) )
            executables=`command ls ${bin_folder} | xargs`
            commands="${commands} rake ${executables}"
            ;;
    esac
    
    COMPREPLY=( $(compgen -W "${commands}" -- ${cur}) )
    return 0
}
complete -F _bundler_complete bundle

Hey, have a look to this: https://github.com/alexistoulotte/bundler_bash_completion