Use vendored version of plumbing instead of go get 🦸

Using `go get -d` updates continuously the plumbing dependency,
without really updating the vendor folder, which will mean inconsistency.

Signed-off-by: Vincent Demeester <[email protected]>

hack/update-codegen.sh

@@ -18,8 +18,7 @@ set -o errexit
 set -o nounset
 set -o pipefail
 
-go get -d github.com/tektoncd/plumbing
-source $(go list -m -f '{{.Dir}}' github.com/tektoncd/plumbing)/scripts/library.sh
+source $(dirname $0)/../vendor/github.com/tektoncd/plumbing/scripts/library.sh
 
 SCRIPT_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
 CODEGEN_PKG=${CODEGEN_PKG:-$(go list -m -f '{{.Dir}}' k8s.io/code-generator)}

hack/update-deps.sh

@@ -18,8 +18,7 @@ set -o errexit
 set -o nounset
 set -o pipefail
 
-go get -d github.com/tektoncd/plumbing
-source $(go list -m -f '{{.Dir}}' github.com/tektoncd/plumbing)/scripts/library.sh
+source $(dirname $0)/../vendor/github.com/tektoncd/plumbing/scripts/library.sh
 
 cd ${REPO_ROOT_DIR}
 

hack/verify-codegen.sh

@@ -18,8 +18,7 @@ set -o errexit
 set -o nounset
 set -o pipefail
 
-go get -d github.com/tektoncd/plumbing
-source $(go list -m -f '{{.Dir}}' github.com/tektoncd/plumbing)/scripts/library.sh
+source $(dirname $0)/../vendor/github.com/tektoncd/plumbing/scripts/library.sh
 
 readonly TMP_DIFFROOT="$(mktemp -d ${REPO_ROOT_DIR}/tmpdiffroot.XXXXXX)"
 

test/dummy_test.go

@@ -0,0 +1,27 @@
+// +build e2e
+
+// Copyright © 2018 The Tekton 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.
+
+package test
+
+import (
+	"testing"
+
+	_ "github.com/tektoncd/plumbing/scripts"
+)
+
+func TestDummy(t *testing.T) {
+	t.Log("This is required to make sure we get tektoncd/plumbing in the repository, folder vendor")
+}