pry--pry/lib/pry/commands/reload_code.rb

66 lines
2.0 KiB
Ruby

class Pry
class Command::ReloadCode < Pry::ClassCommand
match 'reload-code'
group 'Misc'
description 'Reload the source file that contains the specified code object.'
banner <<-'BANNER'
Reload the source file that contains the specified code object.
e.g reload-code MyClass#my_method #=> reload a method
reload-code MyClass #=> reload a class
reload-code my-command #=> reload a pry command
reload-code self #=> reload the 'current' object
reload-code #=> identical to reload-code self
BANNER
def process
if obj_name.empty?
# if no parameters were provided then try to reload the
# current file (i.e target.eval("__FILE__"))
reload_current_file
else
code_object = Pry::CodeObject.lookup(obj_name, _pry_)
reload_code_object(code_object)
end
end
private
def current_file
File.expand_path target.eval("__FILE__")
end
def reload_current_file
if !File.exists?(current_file)
raise CommandError, "Current file: #{current_file} cannot be found on disk!"
end
load current_file
output.puts "The current file: #{current_file} was reloaded!"
end
def reload_code_object(code_object)
check_for_reloadability(code_object)
load code_object.source_file
output.puts "#{obj_name} was reloaded!"
end
def obj_name
@obj_name ||= args.join(" ")
end
def check_for_reloadability(code_object)
if !code_object || !code_object.source_file
raise CommandError, "Cannot locate #{obj_name}!"
elsif !File.exists?(code_object.source_file)
raise CommandError, "Cannot reload #{obj_name} as it has no associated file on disk. File found was: #{code_object.source_file}"
end
end
end
Pry::Commands.add_command(Pry::Command::ReloadCode)
Pry::Commands.alias_command 'reload-method', 'reload-code'
end