1#!/usr/bin/env bash
2
3# Copyright 2023 The cert-manager Authors.
4#
5# Licensed under the Apache License, Version 2.0 (the "License");
6# you may not use this file except in compliance with the License.
7# You may obtain a copy of the License at
8#
9# http://www.apache.org/licenses/LICENSE-2.0
10#
11# Unless required by applicable law or agreed to in writing, software
12# distributed under the License is distributed on an "AS IS" BASIS,
13# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14# See the License for the specific language governing permissions and
15# limitations under the License.
16
17# Verify that the supplied command does not make any changes to the repository.
18#
19# This is called from the Makefile to verify that all code generation scripts
20# have been run and that their changes have been committed to the repository.
21#
22# Runs any of the scripts or Make targets in this repository, after making a
23# copy of the repository, then reports any changes to the files in the copy.
24
25# For example:
26#
27# make verify-helm-chart-update || \
28# make helm-chart-update
29#
30set -o errexit
31set -o nounset
32set -o pipefail
33
34projectdir="$( cd "$( dirname "${BASH_SOURCE[0]}" )/../../../.." && pwd )"
35
36cd "${projectdir}"
37
38# Use short form arguments here to support BSD/macOS. `-d` instructs
39# it to make a directory, `-t` provides a prefix to use for the directory name.
40tmp="$(mktemp -d /tmp/verify.sh.XXXXXXXX)"
41
42cleanup() {
43 rm -rf "${tmp}"
44}
45trap "cleanup" EXIT SIGINT
46
47rsync -aEq "${projectdir}/." "${tmp}" --exclude "_bin/"
48pushd "${tmp}" >/dev/null
49
50"$@"
51
52popd >/dev/null
53
54if ! diff \
55 --exclude=".git" \
56 --exclude="_bin" \
57 --new-file --unified --show-c-function --recursive "${projectdir}" "${tmp}"
58then
59 echo
60 echo "Project '${projectdir}' is out of date."
61 echo "Please run '${*}'"
62 exit 1
63fi
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