Git pre-commit hook that checks whether changes have been made to a subfolder and if they have runs tests (currently on the play framework but easily adjustable) aborting the commit unless tests pass. Great for continuous integration purposes.

pre-commit

#!/bin/bash
#A hook script to ensure that all tests are passing before committing
#The script tests whether changes have been made in the relevant directory
pwd
sometext=`git status`
if [[ "$sometext" =~ 'play/stocksystem/' ]];
then
	echo "you changed something in the stocksystem"
	echo "running tests before proceeding with commit"
	play auto-test ./play/stocksystem
	
	if [ -e play/stocksystem/test-result/result.failed ];
	then
		echo "tests failed, unfortunately I can't accept user input from within a hook"
		echo "to ask what you want to do about this."
		echo "so if you want to commit despite failing tests"
		echo "rerun git commit with the option git commit --no-verify"
		exit 1
	else
		echo "All tests passed proceeding..."
		exit 0
	fi
else
	echo "No change to stock system detected, proceeding..."
	exit 0
fi