Update dep info

- Add pruning settings to Gopkg.toml
- Update vendoring deps doc to point to dep installation instructions
  and to use dep instead of hack/dep-save.sh
- Remove hack/dep-save.sh

Signed-off-by: Andy Goldstein <andy.goldstein@gmail.com>

Gopkg.toml

@@ -31,6 +31,11 @@ required = [
   "k8s.io/code-generator/cmd/informer-gen",
 ]
 
+[prune]
+  unused-packages = true
+  non-go = true
+  go-tests = true
+
 [[constraint]]
   name = "cloud.google.com/go"
   version = "0.11.0"

docs/vendoring-dependencies.md

@@ -2,22 +2,17 @@
 
 ## Overview
 
-We are using [dep][0] to manage dependencies. You can install it by running
-
-```
-go get -u github.com/golang/dep/cmd/dep
-```
-
-Dep currently pulls in a bit more than we'd like, so
-we have created a script to remove these extra files: `hack/dep-save.sh`.
+We are using [dep][0] to manage dependencies. You can install it by following [these
+instructions][1].
 
 ## Adding a new dependency
 
-Run `hack/dep-save.sh`. If you want to see verbose output, you can append `-v` as in
-`hack/dep-save.sh -v`.
+Run `dep ensure`. If you want to see verbose output, you can append `-v` as in
+`dep ensure -v`.
 
 ## Updating an existing dependency
 
-Run `hack/dep-save.sh -update <pkg> [<pkg> ...]` to update one or more dependencies.
+Run `dep ensure -update <pkg> [<pkg> ...]` to update one or more dependencies.
 
 [0]: https://github.com/golang/dep
+[1]: https://golang.github.io/dep/docs/installation.html

hack/dep-save.sh

@@ -1,21 +0,0 @@
-#!/bin/bash -e
-#
-# Copyright 2017 the Heptio Ark contributors.
-#
-# 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.
-
-dep ensure $@
-dep prune
-
-# remove files we don't want
-find vendor \( -name BUILD -o -name .travis.yml -o -name '*_test.go' \) -exec rm {} \;