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pry--pry/lib/pry.rb

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# (C) John Mair (banisterfiend) 2013
# MIT License
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#
require 'pp'
require 'pry/input_lock'
require 'pry/exceptions'
require 'pry/helpers/base_helpers'
require 'pry/hooks'
require 'forwardable'
class Pry
# The default hooks - display messages when beginning and ending Pry sessions.
DEFAULT_HOOKS = Pry::Hooks.new.add_hook(:before_session, :default) do |out, target, _pry_|
next if _pry_.quiet?
_pry_.run_command("whereami --quiet")
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end
# The default print
DEFAULT_PRINT = proc do |output, value, _pry_|
_pry_.pager.open do |pager|
pager.print _pry_.config.output_prefix
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Pry::ColorPrinter.pp(value, pager, Pry::Terminal.width! - 1)
end
end
# may be convenient when working with enormous objects and
# pretty_print is too slow
SIMPLE_PRINT = proc do |output, value|
begin
output.puts value.inspect
rescue RescuableException
output.puts "unknown"
end
end
# useful when playing with truly enormous objects
CLIPPED_PRINT = proc do |output, value|
output.puts Pry.view_clip(value, id: true)
end
# Will only show the first line of the backtrace
DEFAULT_EXCEPTION_HANDLER = proc do |output, exception, _|
if UserError === exception && SyntaxError === exception
output.puts "SyntaxError: #{exception.message.sub(/.*syntax error, */m, '')}"
else
output.puts "#{exception.class}: #{exception.message}"
output.puts "from #{exception.backtrace.first}"
end
end
DEFAULT_PROMPT_NAME = 'pry'
# The default prompt; includes the target and nesting level
DEFAULT_PROMPT = [
proc { |target_self, nest_level, pry|
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"[#{pry.input_array.size}] #{pry.config.prompt_name}(#{Pry.view_clip(target_self)})#{":#{nest_level}" unless nest_level.zero?}> "
},
proc { |target_self, nest_level, pry|
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"[#{pry.input_array.size}] #{pry.config.prompt_name}(#{Pry.view_clip(target_self)})#{":#{nest_level}" unless nest_level.zero?}* "
}
]
DEFAULT_PROMPT_SAFE_OBJECTS = [String, Numeric, Symbol, nil, true, false]
# A simple prompt - doesn't display target or nesting level
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SIMPLE_PROMPT = [proc { ">> " }, proc { " | " }]
NO_PROMPT = [proc { '' }, proc { '' }]
SHELL_PROMPT = [
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proc { |target_self, _, _pry_| "#{_pry_.config.prompt_name} #{Pry.view_clip(target_self)}:#{Dir.pwd} $ " },
proc { |target_self, _, _pry_| "#{_pry_.config.prompt_name} #{Pry.view_clip(target_self)}:#{Dir.pwd} * " }
]
# A prompt that includes the full object path as well as
# input/output (_in_ and _out_) information. Good for navigation.
NAV_PROMPT = [
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proc do |_, _, _pry_|
tree = _pry_.binding_stack.map { |b| Pry.view_clip(b.eval("self")) }.join " / "
"[#{_pry_.input_array.count}] (#{_pry_.config.prompt_name}) #{tree}: #{_pry_.binding_stack.size - 1}> "
end,
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proc do |_, _, _pry_|
tree = _pry_.binding_stack.map { |b| Pry.view_clip(b.eval("self")) }.join " / "
"[#{_pry_.input_array.count}] (#{ _pry_.config.prompt_name}) #{tree}: #{_pry_.binding_stack.size - 1}* "
end,
]
# Deal with the ^D key being pressed. Different behaviour in different cases:
# 1. In an expression behave like `!` command.
# 2. At top-level session behave like `exit` command.
# 3. In a nested session behave like `cd ..`.
DEFAULT_CONTROL_D_HANDLER = proc do |eval_string, _pry_|
if !eval_string.empty?
eval_string.replace('') # Clear input buffer.
elsif _pry_.binding_stack.one?
_pry_.binding_stack.clear
throw(:breakout)
else
Change behavior of `cd -` command Since banister begged me to do that... completely rewrite `cd -` command (implemetation is much simpler now). This commit brings such changes: * completely rewrite behavior of `cd -` command; * implement ScratchPad aka Pad for unit testing purposes (by banister); * use Pad riches in the unit tests for `cd -` command; * remove verbose and clunky unit tests; This commit brings new meaning to the `cd -` command. The main difference is that the new command saves entire binding stack, not just the last binding. Let me show you an example of the variance between these two implemetations: * Old `cd -` implementation saves *only* last binding. With our next `cd -` invocation our interjacent results are lost: [1] pry(main)> cd 1/2/3/../4 [2] pry(4):3> cd - [3] pry(main)> cd - [4] pry(4):1> nesting Nesting status: -- 0. main (Pry top level) 1. 4 Also, there are a few bugs in old `cd -` command: * you type `cd :foo`, `cd 1/2/3` and `cd -`. The last command relocates you to the scope of `3` (leaves you where you was), when `:foo` is expected; * you type `cd :foo`, `cd 1/2/3/../4`, `cd -`. The last command relocates you to the scope of `3`, when `:foo` is expected. * New and shiny `cd -` is devoid of those shortcomings: [1] pry(main)> cd 1/2/3/../4 [2] pry(4):3> cd - [3] pry(main)> cd - [4] pry(4):3> nesting Nesting status: -- 0. main (Pry top level) 1. 1 2. 2 3. 4 As I said before, this solution is *much* simpler and less error-prone. Signed-off-by: Kyrylo Silin <kyrylosilin@gmail.com>
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# Otherwise, saves current binding stack as old stack and pops last
# binding out of binding stack (the old stack still has that binding).
_pry_.command_state["cd"] ||= Pry::Config.from_hash({}) # FIXME
_pry_.command_state['cd'].old_stack = _pry_.binding_stack.dup
Change behavior of `cd -` command Since banister begged me to do that... completely rewrite `cd -` command (implemetation is much simpler now). This commit brings such changes: * completely rewrite behavior of `cd -` command; * implement ScratchPad aka Pad for unit testing purposes (by banister); * use Pad riches in the unit tests for `cd -` command; * remove verbose and clunky unit tests; This commit brings new meaning to the `cd -` command. The main difference is that the new command saves entire binding stack, not just the last binding. Let me show you an example of the variance between these two implemetations: * Old `cd -` implementation saves *only* last binding. With our next `cd -` invocation our interjacent results are lost: [1] pry(main)> cd 1/2/3/../4 [2] pry(4):3> cd - [3] pry(main)> cd - [4] pry(4):1> nesting Nesting status: -- 0. main (Pry top level) 1. 4 Also, there are a few bugs in old `cd -` command: * you type `cd :foo`, `cd 1/2/3` and `cd -`. The last command relocates you to the scope of `3` (leaves you where you was), when `:foo` is expected; * you type `cd :foo`, `cd 1/2/3/../4`, `cd -`. The last command relocates you to the scope of `3`, when `:foo` is expected. * New and shiny `cd -` is devoid of those shortcomings: [1] pry(main)> cd 1/2/3/../4 [2] pry(4):3> cd - [3] pry(main)> cd - [4] pry(4):3> nesting Nesting status: -- 0. main (Pry top level) 1. 1 2. 2 3. 4 As I said before, this solution is *much* simpler and less error-prone. Signed-off-by: Kyrylo Silin <kyrylosilin@gmail.com>
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_pry_.binding_stack.pop
end
end
DEFAULT_SYSTEM = proc do |output, cmd, _|
if !system(cmd)
output.puts "Error: there was a problem executing system command: #{cmd}"
end
end
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# Store the current working directory. This allows show-source etc. to work if
# your process has changed directory since boot. [Issue #675]
INITIAL_PWD = Dir.pwd
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# This is to keep from breaking under Rails 3.2 for people who are doing that
# IRB = Pry thing.
module ExtendCommandBundle; end
end
require 'method_source'
require 'shellwords'
require 'stringio'
require 'strscan'
require 'coderay'
require 'slop'
require 'rbconfig'
require 'tempfile'
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require 'pathname'
require 'pry/version'
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require 'pry/repl'
require 'pry/rbx_path'
require 'pry/code'
require 'pry/history_array'
require 'pry/helpers'
require 'pry/code_object'
require 'pry/method'
require 'pry/wrapped_module'
require 'pry/history'
require 'pry/command'
require 'pry/command_set'
require 'pry/commands'
require 'pry/plugins'
require 'pry/core_extensions'
require 'pry/pry_class'
require 'pry/pry_instance'
require 'pry/cli'
require 'pry/color_printer'
require 'pry/pager'
require 'pry/terminal'
require 'pry/editor'
require 'pry/rubygem'
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require "pry/indent"
require "pry/last_exception"
require "pry/prompt"
require "pry/inspector"
require 'pry/object_path'
require 'pry/output'