class Pry::Command::Hist
Public Instance Methods
options(opt)
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# File lib/pry/commands/hist.rb, line 22 def options(opt) opt.on :a, :all, "Display all history" opt.on :H, :head, "Display the first N items", :optional_argument => true, :as => Integer opt.on :T, :tail, "Display the last N items", :optional_argument => true, :as => Integer opt.on :s, :show, "Show the given range of lines", :optional_argument => true, :as => Range opt.on :G, :grep, "Show lines matching the given pattern", :argument => true, :as => String opt.on :c, :clear , "Clear the current session's history" opt.on :r, :replay, "Replay a line or range of lines", :argument => true, :as => Range opt.on :save, "Save history to a file", :argument => true, :as => Range opt.on :e, :'exclude-pry', "Exclude Pry commands from the history" opt.on :n, :'no-numbers', "Omit line numbers" end
process()
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# File lib/pry/commands/hist.rb, line 35 def process @history = find_history if opts.present?(:show) @history = @history.between(opts[:show]) end if opts.present?(:grep) @history = @history.grep(opts[:grep]) end @history = case when opts.present?(:head) @history.take_lines(1, opts[:head] || 10) when opts.present?(:tail) @history.take_lines(-(opts[:tail] || 10), opts[:tail] || 10) when opts.present?(:show) @history.between(opts[:show]) else @history end if opts.present?(:'exclude-pry') @history = @history.select do |loc| !command_set.valid_command?(loc.line) end end if opts.present?(:save) process_save elsif opts.present?(:clear) process_clear elsif opts.present?(:replay) process_replay else process_display end end
Private Instance Methods
check_for_juxtaposed_replay(replay_sequence)
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Checks replay_sequence
for the presence of neighboring replay calls. @example
[1] pry(main)> hist --show 46894 46894: hist --replay 46675..46677 [2] pry(main)> hist --show 46675..46677 46675: 1+1 46676: a = 100 46677: hist --tail [3] pry(main)> hist --replay 46894 Error: Replay index 46894 points out to another replay call: `hist -r 46675..46677` [4] pry(main)>
@raise [Pry::CommandError] If replay_sequence
contains another
"hist --replay" call
@param [String] replay_sequence The sequence of commands to be replayed
(per saltum)
@return [Boolean] `false` if replay_sequence
does not contain another
"hist --replay" call
# File lib/pry/commands/hist.rb, line 144 def check_for_juxtaposed_replay(replay_sequence) if replay_sequence =~ /\Ahist(?:ory)?\b/ # Create *fresh* instance of Options for parsing of "hist" command. _slop = self.slop _slop.parse replay_sequence.split(' ')[1..-1] if _slop.present?(:r) replay_sequence = replay_sequence.split("\n").join('; ') index = opts[:r] index = index.min if index.min == index.max || index.max.nil? raise CommandError, "Replay index #{ index } points out to another replay call: `#{ replay_sequence }`" end else false end end
find_history()
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Finds history depending on the given switch.
@return [Pry::Code] if it finds `–all` (or `-a`) switch, returns all
entries in history. Without the switch returns only the entries from the current Pry session.
# File lib/pry/commands/hist.rb, line 167 def find_history h = if opts.present?(:all) Pry.history.to_a else Pry.history.to_a.last(Pry.history.session_line_count) end # The last value in history will be the 'hist' command itself. Pry::Code(h[0..-2]) end
process_clear()
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# File lib/pry/commands/hist.rb, line 107 def process_clear Pry.history.clear output.puts "History cleared." end
process_display()
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# File lib/pry/commands/hist.rb, line 76 def process_display unless opts.present?(:'no-numbers') @history = @history.with_line_numbers end _pry_.pager.open do |pager| @history.print_to_output(pager, true) end end
process_replay()
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# File lib/pry/commands/hist.rb, line 112 def process_replay @history = @history.between(opts[:r]) replay_sequence = @history.raw # If we met follow-up "hist" call, check for the "--replay" option # presence. If "hist" command is called with other options, proceed # further. check_for_juxtaposed_replay(replay_sequence) replay_sequence.lines.each do |line| _pry_.eval line, :generated => true end end
process_save()
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# File lib/pry/commands/hist.rb, line 86 def process_save case opts[:save] when Range @history = @history.between(opts[:save]) unless args.first raise CommandError, "Must provide a file name." end file_name = File.expand_path(args.first) when String file_name = File.expand_path(opts[:save]) end output.puts "Saving history in #{file_name}..." File.open(file_name, 'w') { |f| f.write(@history.raw) } output.puts "History saved." end