Merge pull request #12188 from eparis/godeps-clean-test

verify-godeps.sh script to make sure all of Godeps is easily reproducible

hack/verify-godeps.sh

@@ -0,0 +1,74 @@
+#!/bin/bash
+
+# Copyright 2015 The Kubernetes Authors All rights reserved.
+#
+# 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.
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+KUBE_ROOT=$(dirname "${BASH_SOURCE}")/..
+source "${KUBE_ROOT}/hack/lib/init.sh"
+
+branch="${1:-master}"
+# notice this uses ... to find the first shared ancestor
+if ! git diff origin/"${branch}"...HEAD | grep 'Godeps/' > /dev/null; then
+  exit 0
+fi
+
+# create a nice clean place to put our new godeps
+_tmpdir="$(mktemp -d -t gopath.XXXXXX)"
+function cleanup {
+  echo "Removing ${_tmpdir}"
+  rm -rf "${_tmpdir}"
+}
+trap cleanup EXIT
+
+# build the godep tool
+export GOPATH="${_tmpdir}"
+go get -u github.com/tools/godep 2>/dev/null
+go install github.com/tools/godep 2>/dev/null
+GODEP="${_tmpdir}/bin/godep"
+
+# fill out that nice clean place with the kube godeps
+echo "Starting to download all kubernetes godeps. This takes a while"
+"${GODEP}" restore
+echo "Download finished"
+
+# copy the contents of your kube directory into the nice clean place
+_kubetmp="${_tmpdir}/src/k8s.io/"
+mkdir -p "${_kubetmp}"
+#should create ${_kubectmp}/kubernetes
+git archive --format=tar --prefix=kubernetes/ $(git write-tree) | (cd "${_kubetmp}" && tar xf -)
+_kubetmp="${_kubetmp}/kubernetes"
+
+# destroy godeps in our COPY of the kube tree
+pushd "${_kubetmp}" > /dev/null
+rm -rf ./Godeps
+
+# for some reason the kube tree needs to be a git repo for the godep tool to run. Doesn't make sense
+git init > /dev/null 2>&1
+
+# recreate the Godeps using the nice clean set we just downloaded
+"${GODEP}" save ./...
+popd > /dev/null
+
+# Check for any (meaninful) differences between the godeps in the tree and this nice clean one we just built
+if ! _out="$(diff -NIaupr --ignore-matching-lines='^\s*\"GoVersion\":' --ignore-matching-lines='^\s*\"Comment\":' ${KUBE_ROOT}/Godeps/ ${_kubetmp}/Godeps/)"; then
+  echo "Your godeps changes are not reproducable"
+  echo "${_out}"
+  exit 1
+fi
+
+# ex: ts=2 sw=2 et filetype=sh