Add linter test for prow (#14934)

* Add linter test for prow

* chmod

Makefile

@@ -288,10 +288,14 @@ fmt:
 buildcache:
 	GOBUILDFLAGS=-i $(MAKE) build
 
+JUNIT_LINT_TEST_XML ?= $(ISTIO_OUT)/junit_lint-tests.xml
 # Existence of build cache .a files actually affects the results of
 # some linters; they need to exist.
-lint: buildcache
-	SKIP_INIT=1 bin/linters.sh
+lint: $(JUNIT_REPORT) buildcache
+	mkdir -p $(dir $(JUNIT_LINT_TEST_XML))
+	set -o pipefail; \
+	SKIP_INIT=1 bin/linters.sh \
+	2>&1 | tee >($(JUNIT_REPORT) > $(JUNIT_LINT_TEST_XML))
 
 # @todo gometalinter targets?
 

prow/istio-lint.sh

@@ -0,0 +1,37 @@
+#!/bin/bash
+
+# Copyright 2019 Istio 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.
+
+WD=$(dirname "$0")
+WD=$(cd "$WD"; pwd)
+ROOT=$(dirname "$WD")
+
+# No unset vars, print commands as they're executed, and exit on any non-zero
+# return code
+set -u
+set -x
+set -e
+
+# shellcheck source=prow/lib.sh
+source "${ROOT}/prow/lib.sh"
+setup_and_export_git_sha
+
+cd "${ROOT}"
+
+# Unit tests are run against a local apiserver and etcd.
+# Integration/e2e tests in the other scripts are run against GKE or real clusters.
+JUNIT_LINT_TEST_XML="${ARTIFACTS_DIR}/junit_lint-tests.xml" \
+T="-v" \
+make localTestEnv lint