class Pry class Command::Play < Pry::ClassCommand match 'play' group 'Editing' description 'Playback a string variable, method, line, or file as input.' banner <<-'BANNER' Usage: play [OPTIONS] [--help] The play command enables you to replay code from files and methods as if they were entered directly in the Pry REPL. play --lines 149..153 # assumes current context play -i 20 --lines 1..3 # assumes lines of the input expression at 20 play -o 4 # the output of an expression at 4 play Pry#repl -l 1..-1 # play the contents of Pry#repl method play -e 2 # play from specified line until end of valid expression play hello.rb # play a file play Rakefile -l 5 # play line 5 of a file play -d hi # play documentation of hi method play hi --open # play hi method and leave it open https://github.com/pry/pry/wiki/User-Input#wiki-Play BANNER def options(opt) CodeCollector.inject_options(opt) opt.on :open, 'Plays the selected content except the last line. Useful' \ ' for replaying methods and leaving the method definition' \ ' "open". `amend-line` can then be used to' \ ' modify the method.' opt.on :e, :expression=, 'Executes until end of valid expression', as: Integer opt.on :p, :print, 'Prints executed code' end def process @cc = CodeCollector.new(args, opts, _pry_) perform_play show_input end def perform_play eval_string << content_after_options run "fix-indent" end def show_input if opts.present?(:print) or !Pry::Code.complete_expression?(eval_string) run "show-input" end end def content_after_options if opts.present?(:open) restrict_to_lines(content, (0..-2)) elsif opts.present?(:expression) content_at_expression else content end end def content_at_expression code_object.expression_at(opts[:expression]) end def code_object Pry::Code.new(content) end def should_use_default_file? !args.first && !opts.present?(:in) && !opts.present?(:out) end def content if should_use_default_file? file_content else @cc.content end end # The file to play from when no code object is specified. # e.g `play --lines 4..10` def default_file target.eval("__FILE__") && File.expand_path(target.eval("__FILE__")) end def file_content if default_file && File.exist?(default_file) @cc.restrict_to_lines(File.read(default_file), @cc.line_range) else raise CommandError, "File does not exist! File was: #{default_file.inspect}" end end end Pry::Commands.add_command(Pry::Command::Play) end