Git pre-commit hook script which runs golintapi

golintapi-pre-commit-hook.sh

#!/bin/sh
#
# Installation instructions:
# - go get golang.org/x/lint/golint
# - go get github.com/tsavola/golintapi
# - Copy this script to your local Git repository as .git/hooks/pre-commit
# - chmod +x .git/hooks/pre-commit
#
# Note: this script doesn't abort the commit, just displays warnings.

if git rev-parse --verify HEAD >/dev/null 2>&1
then
	against=HEAD
else
	# Empty object.
	against=4b825dc642cb6eb9a060e54bf8d69288fbee4904
fi

# Redirect to stderr.
exec 1>&2

git diff-index --cached --name-only --diff-filter=ACMR $against -- | grep -E '\.go$' | xargs golintapi