Uses files-diff to retrieve a list of changed files and then filters it down to runnable specs then runs them

rspec-changed.sh

#!/bin/bash

changedSpecFiles=$(files-diff | grep '^spec' | grep -v 'spec/support' | grep -v 'spec/factories')
joinedSpecFileNames=$($changedSpecFiles | tr "\n" " ")

spring rspec "$@" $($joinedSpecFileNames)

files-diff can be found at https://gist.github.com/Lockyy/4a5e96288edeb26b3dae17493803d62a

Works under the assumption that anything not in spec/support or spec/factories is runnable.

Known bug: Will attempt to run unrunnable files in the root of spec if they've been changed.

I should probably update this so that it just hunts for anything ending in _spec.rb rather than trying to exclude specific folders.