moby/hack/validate/vendor

#!/usr/bin/env bash

set -e

SCRIPTDIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
source "${SCRIPTDIR}/.validate"

tidy_files=('vendor.mod' 'vendor.sum')
vendor_files=("${tidy_files[@]}" 'vendor/')

validate_vendor_tidy() {
	# run mod tidy
	./hack/vendor.sh tidy
	# check if any files have changed
	git diff --quiet HEAD -- "${tidy_files[@]}"
}

validate_vendor_diff() {
	mapfile -t changed_files < <(validate_diff --diff-filter=ACMR --name-only -- "${vendor_files[@]}")

	if [ -n "${TEST_FORCE_VALIDATE:-}" ] || [ "${#changed_files[@]}" -gt 0 ]; then
		# recreate vendor/
		./hack/vendor.sh vendor
		# check if any files have changed
		git diff --quiet HEAD -- "${vendor_files[@]}"
	else
		echo >&2 'No vendor changes in diff; skipping vendor check.'
	fi
}

validate_vendor_license() {
	for f in $(mawk '$1 = "#" { print $2 }' 'vendor/modules.txt'); do
		if [ -d "vendor/$f" ]; then
			if ! echo "vendor/$f"/* | grep -qiEc '/(LICENSE|COPYING)'; then
				echo >&2 "WARNING: could not find copyright information for $f"
			fi
		fi
	done
}

if validate_vendor_tidy && validate_vendor_diff && validate_vendor_license; then
	echo >&2 'Vendoring has been performed correctly!'
else
	{
		echo 'Vendoring was not performed correctly; the following files changed during re-vendor:'
		echo
		git diff --name-status HEAD -- "${vendor_files[@]}"
		echo
		echo 'Please revendor with hack/vendor.sh'
		echo
		git diff --diff-filter=M -- "${vendor_files[@]}"
	} >&2
	exit 1
fi