Add Golang job script printing Golang repo commit hash

golang/run-e2e.sh

@@ -0,0 +1,38 @@
+#!/bin/bash
+
+# Copyright 2020 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.
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+function print_golang_commit {
+  # Running "go version" on any of the extracted K8s binaries will give us
+  # the version of Go that's been used to build the binaries.
+  # In case of a non-standard, customly built Go, this will return the hash of
+  # the commit that was used for that Go build (plus some unnecessary junk that
+  # we remove below).
+  local -r go_version=$(go version $GOPATH/src/k8s.io/perf-tests/kubernetes/client/bin/kubectl)
+  local -r go_commit_hash=$(echo -n $go_version | awk '{ print $3 }' | cut -c2-)
+  local -r dashline=$(printf %100s | tr " " "-")
+  echo "${dashline}"
+  echo "Output of 'go version' ran on one of the extracted K8s binaries: ${go_version}"
+  echo "Golang commit used for building the K8s binaries: ${go_commit_hash}"
+  echo "${dashline}"
+}
+
+print_golang_commit
+
+$GOPATH/src/k8s.io/perf-tests/run-e2e.sh "$@"