Optimize swagger doc generator for Fission CR types (#2123)

Signed-off-by: Sanket Sudake <sanketsudake@gmail.com>

hack/update-codegen.sh

@@ -0,0 +1,19 @@
+#!/bin/bash
+set -o errexit
+set -o nounset
+set -o pipefail
+
+if [ ! -d "../code-generator" ]; then
+	echo "Please get code-generator from fission org"
+	exit 1
+fi
+
+SCRIPT_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
+CODEGEN_PKG=${CODEGEN_PKG:-$(cd "${SCRIPT_ROOT}"; ls -d -1 ./vendor/k8s.io/code-generator 2>/dev/null || echo ../code-generator)}
+
+bash "${CODEGEN_PKG}"/generate-groups.sh "deepcopy,client,informer,lister" \
+	github.com/fission/fission/pkg/generated \
+	github.com/fission/fission/pkg/apis \
+	"core:v1" \
+	--output-base "$(dirname "${BASH_SOURCE[0]}")/../../../.." \
+	--go-header-file "$(dirname "${BASH_SOURCE[0]}")/boilerplate.txt"