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pry--pry/lib/pry/default_commands/context.rb
2011-06-11 22:44:30 +12:00

128 lines
4 KiB
Ruby

require "pry/default_commands/ls"
class Pry
module DefaultCommands
Context = Pry::CommandSet.new do
import Ls
command "cd", "Start a Pry session on VAR (use `cd ..` to go back and `cd /` to return to Pry top-level)", :keep_retval => true do |obj|
case obj
when nil
output.puts "Must provide an object."
next
when ".."
throw(:breakout, opts[:nesting].level)
when "/"
throw(:breakout, 1) if opts[:nesting].level > 0
next
when "::"
TOPLEVEL_BINDING.pry
next
else
Pry.start target.eval(arg_string)
end
end
command "nesting", "Show nesting information." do
nesting = opts[:nesting]
output.puts "Nesting status:"
output.puts "--"
nesting.each do |level, obj|
if level == 0
output.puts "#{level}. #{Pry.view_clip(obj)} (Pry top level)"
else
output.puts "#{level}. #{Pry.view_clip(obj)}"
end
end
end
command "jump-to", "Jump to a Pry session further up the stack, exiting all sessions below." do |break_level|
break_level = break_level.to_i
nesting = opts[:nesting]
case break_level
when nesting.level
output.puts "Already at nesting level #{nesting.level}"
when (0...nesting.level)
throw(:breakout, break_level + 1)
else
max_nest_level = nesting.level - 1
output.puts "Invalid nest level. Must be between 0 and #{max_nest_level}. Got #{break_level}."
end
end
command "exit", "End the current Pry session. Accepts optional return value. Aliases: quit, back" do
throw(:breakout, [opts[:nesting].level, target.eval(arg_string)])
end
alias_command "quit", "exit", ""
alias_command "back", "exit", ""
command "exit-all", "End all nested Pry sessions. Accepts optional return value. Aliases: !!@" do
throw(:breakout, [0, target.eval(arg_string)])
end
alias_command "!!@", "exit-all", ""
command "exit-program", "End the current program. Aliases: quit-program, !!!" do
Pry.active_instance.save_history if Pry.config.history.should_save
exit
end
alias_command "quit-program", "exit-program", ""
alias_command "!!!", "exit-program", ""
command "!pry", "Start a Pry session on current self; this even works mid-expression." do
target.pry
end
command "whereami", "Show the code context for the session. (whereami <n> shows <n> extra lines of code around the invocation line. Default: 5)" do |num|
file = target.eval('__FILE__')
line_num = target.eval('__LINE__')
klass = target.eval('self.class')
if num
i_num = num.to_i
else
i_num = 5
end
meth_name = meth_name_from_binding(target)
meth_name = "N/A" if !meth_name
if file =~ /(\(.*\))|<.*>/ || file == "" || file == "-e"
output.puts "Cannot find local context. Did you use `binding.pry` ?"
next
end
set_file_and_dir_locals(file)
output.puts "\n#{text.bold('From:')} #{file} @ line #{line_num} in #{klass}##{meth_name}:\n\n"
# This method inspired by http://rubygems.org/gems/ir_b
File.open(file).each_with_index do |line, index|
line_n = index + 1
next unless line_n > (line_num - i_num - 1)
break if line_n > (line_num + i_num)
if line_n == line_num
code =" =>#{line_n.to_s.rjust(3)}: #{line.chomp}"
if Pry.color
code = CodeRay.scan(code, :ruby).term
end
output.puts code
code
else
code = "#{line_n.to_s.rjust(6)}: #{line.chomp}"
if Pry.color
code = CodeRay.scan(code, :ruby).term
end
output.puts code
code
end
end
end
end
end
end