Class: Djinni::Wish::History

Inherits:
Djinni::Wish show all
Defined in:
lib/djinni/wish/history.rb

Instance Method Summary collapse

Instance Method Details

#aliases ⇒ Object 



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# File 'lib/djinni/wish/history.rb', line 2

def aliases
    return ["hist", "history"]
end

#description ⇒ Object 



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# File 'lib/djinni/wish/history.rb', line 6

def description
    return "Show history or execute commands from history"
end

#execute(args, djinni_env = {}) ⇒ Object 



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# File 'lib/djinni/wish/history.rb', line 10

def execute(args, djinni_env = {})
    djinni = djinni_env["djinni"]
    history = djinni_env["djinni_history"]

    if (args.empty?)
        history.each_with_index do |hist, index|
            puts "#{index}:    #{hist}"
        end
        return
    end

    args.split(" ").each do |arg|
        case arg
        when "clear"
            # Do nothing
        when /^[0-9]+$/
            index = arg.to_i
            if ((index < 0) || (index >= history.length))
                puts "Index out of bounds; #{index}"
            end
        else
            usage
            return
        end
    end

    args.split(" ").each do |arg|
        case arg
        when "clear"
            history.clear
        when /^[0-9]+$/
            index = arg.to_i
            print "\e[F"
            djinni.grant_wish("#{history[index]}\n", djinni_env)
        end
    end
end

#tab_complete(input, djinni_env = {}) ⇒ Object 



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# File 'lib/djinni/wish/history.rb', line 48

def tab_complete(input, djinni_env = {})
    history = djinni_env["djinni_history"]
    input, found, last = input.rpartition(" ")
    included = input.split(" ")

    completions = Hash.new
    (0...history.length).each do |i|
        completions[i.to_s] = history[i]
    end
    completions["clear"] = "Clear history"

    completions.keep_if do |item, desc|
        !included.include?(item)
    end

    if (!last.empty?)
        completions.keep_if do |item, desc|
            item.downcase.start_with?(last.downcase)
        end
    end

    return [completions, last, " "]
end

#usage ⇒ Object 



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# File 'lib/djinni/wish/history.rb', line 72

def usage
    puts "history [option]"
    puts "    #{description}."
    puts "    OPTIONS"
    puts "        [0-9]+    Execute command from history"
    puts "        clear     Clear history"
end