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# Rails dev tools
This is a collection of utilities used for Rails internal development.
They aren't used by Rails apps directly.
* `console` drops you in irb and loads local Rails repos
* `profile` profiles `Kernel#require` to help reduce startup time
* `line_statistics` provides CodeTools module and LineStatistics class to count lines
* `test` is loaded by every major component of Rails to simplify testing, for example:
`cd ./actioncable; bin/test ./path/to/actioncable_test_with_line_number.rb:5`
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