hack/ci/setup-build-dependencies.sh: add setup script in SDK repo (#1572)

* hack/ci/setup-build-dependencies.sh: add setup script in SDK repo

* .travis.yml,hack: bumping dep to v0.5.3

Author: joelanford

.travis.yml

@@ -17,15 +17,15 @@ x_base_steps:
   # before_install for jobs that require dep
   - &dep_before_install
     before_install:
-      - curl -Lo dep https://github.com/golang/dep/releases/download/v0.5.0/dep-linux-amd64 && chmod +x dep && sudo mv dep /usr/local/bin/
+      - curl -Lo dep https://github.com/golang/dep/releases/download/v0.5.3/dep-linux-amd64 && chmod +x dep && sudo mv dep /usr/local/bin/
       - travis_retry dep ensure -v
   # before_install for jobs that require go builds and do not run for doc-only changes
   - &go_before_install
     before_install:
       # hack/ci/check-doc-only-update.sh needs to be sourced so
       # that it can properly exit the test early with success
       - source hack/ci/check-doc-only-update.sh
-      - curl -Lo dep https://github.com/golang/dep/releases/download/v0.5.0/dep-linux-amd64 && chmod +x dep && sudo mv dep /usr/local/bin/
+      - curl -Lo dep https://github.com/golang/dep/releases/download/v0.5.3/dep-linux-amd64 && chmod +x dep && sudo mv dep /usr/local/bin/
       - travis_retry dep ensure -v
 
   # Base go, ansbile, and helm job

hack/ci/setup-build-dependencies.sh

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+
+set -e
+
+# Install dep
+curl -Lo dep https://github.com/golang/dep/releases/download/v0.5.3/dep-linux-amd64 && chmod +x dep && mv dep /usr/local/bin/
+
+# Ensure vendor directory is up-to-date
+make dep