enhance(dep): adds dep check in travis

Signed-off-by: Ashish Ranjan <ashishranjan738@gmail.com>

This commit adds `dep check` in travis which will allow catching broken dependencies PR.

.travis.yml

@@ -6,11 +6,12 @@ env:
     - GO111MODULE=off
 
 go:
-  - "1.11.4"
+  - "1.11.5"
 
 before_install:
   - go get github.com/mattn/goveralls
   - go get github.com/rexray/gocsi/csc
+  - go get github.com/golang/dep/cmd/dep
   - sudo apt update && sudo apt install procps -y  # for installing pkill
 
 script:

hack/verify-all.sh

@@ -21,3 +21,4 @@ PKG_ROOT=$(git rev-parse --show-toplevel)
 ${PKG_ROOT}/hack/verify-gofmt.sh
 ${PKG_ROOT}/hack/verify-govet.sh
 ${PKG_ROOT}/hack/verify-golint.sh
+${PKG_ROOT}/hack/verify-dep.sh

hack/verify-dep.sh

@@ -0,0 +1,26 @@
+#!/bin/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.
+
+set -euo pipefail
+
+echo "Verifying dep check"
+git grep github.com/kubernetes-sigs/azuredisk-csi-driver/pkg/azuredisk
+dep version
+dep ensure -v
+git status
+dep check
+echo "No issue found"
+