fix shellcheck failures of hack/verify-boilerplate.sh verify-cli-conventions.sh verify-codegen.sh

hack/.shellcheck_failures

@@ -37,9 +37,6 @@
 ./hack/pin-dependency.sh
 ./hack/test-integration.sh
 ./hack/update-vendor.sh
-./hack/verify-boilerplate.sh
-./hack/verify-cli-conventions.sh
-./hack/verify-codegen.sh
 ./hack/verify-golint.sh
 ./hack/verify-no-vendor-cycles.sh
 ./hack/verify-test-featuregates.sh

hack/verify-boilerplate.sh

@@ -18,12 +18,15 @@ set -o errexit
 set -o nounset
 set -o pipefail
 
-KUBE_ROOT=$(dirname "${BASH_SOURCE}")/..
+KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
 
 boilerDir="${KUBE_ROOT}/hack/boilerplate"
 boiler="${boilerDir}/boilerplate.py"
 
-files_need_boilerplate=($(${boiler} "$@"))
+files_need_boilerplate=()
+while IFS=$'\n' read -r line; do
+  files_need_boilerplate+=( "$line" )
+done < <("${boiler}" "$@")
 
 # Run boilerplate check
 if [[ ${#files_need_boilerplate[@]} -gt 0 ]]; then

hack/verify-cli-conventions.sh

@@ -18,7 +18,7 @@ set -o errexit
 set -o nounset
 set -o pipefail
 
-KUBE_ROOT=$(dirname "${BASH_SOURCE}")/..
+KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
 source "${KUBE_ROOT}/hack/lib/init.sh"
 
 kube::golang::setup_env

hack/verify-codegen.sh

@@ -18,7 +18,7 @@ set -o errexit
 set -o nounset
 set -o pipefail
 
-KUBE_ROOT=$(dirname "${BASH_SOURCE}")/..
+KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
 source "${KUBE_ROOT}/hack/lib/init.sh"
 
 kube::golang::setup_env