pre-commit

#!/bin/sh
# Copyright 2012 The Go Authors, 2015 Wyatt Johnson. All rights reserved.
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.

# git gofmt pre-commit hook
#
# To use, store as .git/hooks/pre-commit inside your repository and make sure
# it has execute permissions.
#
# This script does not handle file names that contain spaces.
gofiles=$(git diff --cached --name-only --diff-filter=ACM | grep -v 'vendor/' | grep '.go$')

unformatted=$(gofmt -l $gofiles)
if [ ! -z "$unformatted" ]
then
	echo >&2 "Go files must be formatted with gofmt. Please run:"
	for fn in $unformatted; do
		echo >&2 "  gofmt -w $PWD/$fn"
	done
	exit 1
fi

THRESHOLD_WARN=5
THRESHOLD_FAIL=10

LINTWARNINGS=$(golint ./... | grep -v 'vendor/')
LINTLINES=$(echo "$LINTWARNINGS" | wc -l | tr -d " ")
if [ ! -z "$LINTLINES" ]
then
	echo "$LINTWARNINGS"

	if [ "$LINTLINES" -ge "${THRESHOLD_FAIL}" ];then
		echo >&2 "\nTime to tidy up: $LINTLINES lint warnings."
		exit 1
	elif [ "$LINTLINES" -ge "${THRESHOLD_WARN}" ]; then
		echo >&2 "\nYou should be tidying soon: $LINTLINES lint warnings."
	elif [ "$LINTLINES" -gt 0 ]; then
		echo >&2 "\nYou are fairly tidy: $LINTLINES lint warnings."
	fi
fi

doclines=$(python scripts/docs.py -l 2>&1 | wc -l | tr -d " ")
if [ "$doclines" -gt 0 ]
then
	echo >&2 "Time to regenerate documentation. $doclines README's need updating, run:"
	echo >&2 "  python scripts/docs.py"
	exit 1
fi