Auto-update dependencies (#221)

Produced via:
  `./hack/update-deps.sh --upgrade && ./hack/update-codegen.sh`
/assign n3wscott vagababov
/cc n3wscott vagababov

Gopkg.lock

@@ -966,7 +966,7 @@
 
 [[projects]]
   branch = "master"
-  digest = "1:5a1686615370a9501192d7bd36dd8cee47e73d56c3576dee4737dd9db5c01d7d"
+  digest = "1:8599e892ef7b4613f138689826e24cf7ce0db32faac658babd6f60bc6c1db8b8"
   name = "knative.dev/pkg"
   packages = [
     "apis",
@@ -986,7 +986,7 @@
     "reconciler",
   ]
   pruneopts = "T"
-  revision = "2fe8db30007231e4157929b781ad457f371e422d"
+  revision = "73701f1aa50ece37d044bd843a13cac6a84e3939"
 
 [[projects]]
   branch = "master"
@@ -997,7 +997,7 @@
     "tools/dep-collector",
   ]
   pruneopts = "UT"
-  revision = "8c4b7ba9225ef684492032fb787f5f99d021545d"
+  revision = "7b384c28e66cb8561f3620bd91eb9d5680686a8c"
 
 [[projects]]
   digest = "1:8730e0150dfb2b7e173890c8b9868e7a273082ef8e39f4940e3506a481cf895c"

vendor/knative.dev/pkg/hack/update-deps.sh

@@ -23,8 +23,26 @@ set -o pipefail
 
 cd ${ROOT_DIR}
 
+# The list of dependencies that we track at HEAD and periodically
+# float forward in this repository.
+FLOATING_DEPS=(
+  "knative.dev/test-infra"
+)
+
+# Parse flags to determine any we should pass to dep.
+DEP_FLAGS=()
+while [[ $# -ne 0 ]]; do
+  parameter=$1
+  case ${parameter} in
+    --upgrade) DEP_FLAGS=( -update ${FLOATING_DEPS[@]} ) ;;
+    *) abort "unknown option ${parameter}" ;;
+  esac
+  shift
+done
+readonly DEP_FLAGS
+
 # Ensure we have everything we need under vendor/
-dep ensure $@
+dep ensure ${DEP_FLAGS[@]}
 
 rm -rf $(find vendor/ -name 'OWNERS')
 rm -rf $(find vendor/ -name '*_test.go')