Files
external-snapshotter/verify-vendor.sh
Patrick Ohly c8a1c4af93 better handling of Go version
Some operations are sensitive to the version of Go that is used. In
the past, formatting of source differed depending on the
version. Right now it is the content of the vendor directory which
changes when switch back and forth between 1.12 and 1.13.

We don't want to impose a certain workflow on developers, like forcing
all invocations of Go to run inside a container. If developers want
that, they can set up their development environment accordingly.

But we should warn about this aspect to raise awareness. "make"
invocations which involve Go now compare against the projects Go
version (specified in travis.yml) once at the beginning. This is only
a warning because we don't know which future version will be
compatible with the project.

Vendor directory handling gets updated, too: verification is now a
separate script (became too complex for make) and there is a
corresponding "update-vendor.sh". In contrast to verification,
updating vendor is not integrated into make and thus itself invokes
the go version check.
2019-10-31 11:59:34 +01:00

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#!/usr/bin/env bash
# Copyright 2019 The Kubernetes Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
if [ -f Gopkg.toml ]; then
echo "Repo uses 'dep' for vendoring."
case "$(dep version 2>/dev/null | grep 'version *:')" in
*v0.[56789]*)
if dep check; then
echo "vendor up-to-date"
else
exit 1
fi
;;
*) echo "skipping check, dep >= 0.5 required";;
esac
elif [ -f go.mod ]; then
echo "Repo uses 'go mod'."
# shellcheck disable=SC2235
if [ "${JOB_NAME}" ] &&
( [ "${JOB_TYPE}" != "presubmit" ] ||
[ "$( (git diff "${PULL_BASE_SHA}..HEAD" -- go.mod go.sum vendor release-tools;
git diff "${PULL_BASE_SHA}..HEAD" | grep -e '^@@.*@@ import (' -e '^[+-]import') |
wc -l)" -eq 0 ] ); then
echo "Skipping vendor check because the Prow pre-submit job does not affect dependencies."
elif ! (set -x; env GO111MODULE=on go mod tidy); then
echo "ERROR: vendor check failed."
exit 1
elif [ "$(git status --porcelain -- go.mod go.sum | wc -l)" -gt 0 ]; then
echo "ERROR: go module files *not* up-to-date, they did get modified by 'GO111MODULE=on go mod tidy':";
git diff -- go.mod go.sum
exit 1
elif [ -d vendor ]; then
if ! (set -x; env GO111MODULE=on go mod vendor); then
echo "ERROR: vendor check failed."
exit 1
elif [ "$(git status --porcelain -- vendor | wc -l)" -gt 0 ]; then
echo "ERROR: vendor directory *not* up-to-date, it did get modified by 'GO111MODULE=on go mod vendor':"
git status -- vendor
git diff -- vendor
exit 1
else
echo "Go dependencies and vendor directory up-to-date."
fi
else
echo "Go dependencies up-to-date."
fi
fi