Update codegen

Hack `scripts/update_codegen.sh` script to continue to generate code using
the deprecated scripts. The deprecated scripts now call into each other,
and unfortunately, `go mod vendor` doesn't keep permission bits around.
So, we need to update the execute permissions on a vendored script.

The new `kube_codegen.sh` doesn't work when the repository path is
outside the package name, see:
kubernetes/code-generator#165

The workaround is to create symlinked directories to fool `kube_codegen.sh`
into thinking the path is correct. But first we'd have to start using the
new script.

Once `kube_codegen.sh` is fixed, we should migrate to it (which is a
non-trivial task).

Signed-off-by: Todd Short <[email protected]>

Author: tmshort

Diff for: deploy/chart/crds/0000_50_olm_00-clusterserviceversions.crd.yaml

@@ -23,7 +23,10 @@ CODEGEN_PKG=${CODEGEN_PKG:-$(cd "${SCRIPT_ROOT}"; ls -d -1 ./vendor/k8s.io/code-
 
 # create a temporary directory to generate code in and ensure we clean it up on exit
 OUTPUT_BASE=$(mktemp -d)
-trap 'rm -rf "${OUTPUT_BASE}"' ERR EXIT
+# Hack the script to make it executable from within generate-groups.sh
+# Because vendored sources do not include permission bits
+chmod u+x "${CODEGEN_PKG}/generate-internal-groups.sh"
+trap 'rm -rf "${OUTPUT_BASE}"; chmod u-x "${CODEGEN_PKG}/generate-internal-groups.sh"' ERR EXIT
 
 ORG="github.com/operator-framework"
 API_MODULE="${ORG}/api"