Command Line
- pry -r ./config/app_init_file.rb- load your app into a pry session (look at the file loaded by config.ru)
- pry -r ./config/environment.rb- load your rails into a pry session
Debugger
- help ls-- Display command options for pry command ls
- ls <Object>-- Show all of the available methods that can be called by an object
- _-- Last eval
- ? <Object>-- Shows more information (doc) about an object, or method
- _file_-- Represent the last file Pry touched
- wtf?-- Print the stack trace, same as- _ex_.backtrace
- $-- Show source, shortcut for show-source
- edit Class-- Open file in $EDITOR
- edit Class#instance_method-- Open file in $EDITOR
- <ctrl+r>-- Search history
- _out_-- Array of all outputs values, also- _in_
- cd <var>-- Step into an object, change the value of self
- cd ..-- Take out of a level
- binding.pry-- Breakpoint
- edit --ex-- Edit the file where the last exception was thrown
- .<Shell>-- Runs the command
- whereami-- Print the context where the debugger is stopped
- whereami 20-- Print the context 20 lines where the debugger is stopped
- ;-- Would mute the return output by Ruby
- play -l-- Execute the line in the current debugging context
- next-- execute next line
- step-- step into next function call
- continue-- continue through stack
- rescue rspec-- break on exception in rspec
- rescue rails server-- break on exception in rails server
- try-again-- run last failing spec, reloads the file not the enviornment
very useful!!! Thank you!