run tests on files changed since last commit

[Alon Dahari]

Hi,

I have a pre-commit hook on my project to run my rspec tests and prevent commit on failures.

As the project grows, running the tests is getting slower.

Is there a way to run only tests that touch files changed since last commit (staged files)?

Thanks!

[Myron Marston]

RSpec does not provide anything like this (it is agnostic about what source control system you are using, if any).

You could write a script to query git for the list of files that have changed since last commit, and pass the spec files in that list to the `rspec` command.

HTH,

Myron

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[Jon Rowe]

I use an alias to do something similar which runs `git ls-files -mo --exclude-standard | exists | grep _spec\.rb$ | xargs bundle exec rspec` you could give that a try

Jon Rowe

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