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113 lines
3.2 KiB
Ruby
113 lines
3.2 KiB
Ruby
class Pry
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Pry::Commands.create_command "hist" do
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group "Editing"
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description "Show and replay Readline history. Aliases: history"
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banner <<-USAGE
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Usage: hist
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hist --head N
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hist --tail N
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hist --show START..END
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hist --grep PATTERN
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hist --clear
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hist --replay START..END
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hist --save [START..END] FILE
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USAGE
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def options(opt)
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opt.on :H, :head, "Display the first N items.", :optional_argument => true, :as => Integer
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opt.on :T, :tail, "Display the last N items.", :optional_argument => true, :as => Integer
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opt.on :s, :show, "Show the given range of lines.", :optional_argument => true, :as => Range
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opt.on :G, :grep, "Show lines matching the given pattern.", :argument => true, :as => String
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opt.on :c, :clear, "Clear the current session's history."
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opt.on :r, :replay, "Replay a line or range of lines.", :argument => true, :as => Range
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opt.on :save, "Save history to a file.", :argument => true, :as => Range
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opt.on :e, :'exclude-pry', "Exclude Pry commands from the history."
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opt.on :n, :'no-numbers', "Omit line numbers."
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opt.on :f, :flood, "Do not use a pager to view text longer than one screen."
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end
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def process
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@history = Pry::Code(Pry.history.to_a)
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if opts.present?(:show)
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@history = @history.between(opts[:show])
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end
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if opts.present?(:grep)
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@history = @history.grep(opts[:grep])
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end
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@history = case
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when opts.present?(:head)
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@history.take_lines(1, opts[:head] || 10)
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when opts.present?(:tail)
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@history.take_lines(-(opts[:tail] || 10), opts[:tail] || 10)
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when opts.present?(:show)
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@history.between(opts[:show])
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else
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@history
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end
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if opts.present?(:'exclude-pry')
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@history = @history.select { |l, ln| !command_set.valid_command?(l) }
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end
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if opts.present?(:save)
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process_save
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elsif opts.present?(:clear)
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process_clear
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elsif opts.present?(:replay)
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process_replay
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else
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process_display
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end
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end
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def process_display
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unless opts.present?(:'no-numbers')
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@history = @history.with_line_numbers
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end
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render_output(@history, opts)
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end
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def process_save
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case opts[:save]
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when Range
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@history = @history.between(opts[:save])
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unless args.first
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raise CommandError, "Must provide a file name."
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end
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file_name = File.expand_path(args.first)
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when String
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file_name = File.expand_path(opts[:save])
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end
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output.puts "Saving history in #{file_name}..."
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File.open(file_name, 'w') { |f| f.write(@history.raw) }
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output.puts "History saved."
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end
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def process_clear
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Pry.history.clear
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output.puts "History cleared."
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end
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def process_replay
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@history = @history.between(opts[:r])
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_pry_.input_stack.push _pry_.input
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_pry_.input = StringIO.new(@history.raw)
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# eval_string << "#{@history.raw}\n"
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# run "show-input" unless _pry_.complete_expression?(eval_string)
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end
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end
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Pry::Commands.alias_command "history", "hist"
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end
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