update-codegen.sh

#!/usr/bin/env bash
#
# Copyright 2020 SAP SE or an SAP affiliate company. All rights reserved. This file is licensed under the Apache Software License, v. 2 except as noted otherwise in the LICENSE file
#
# 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.

set -o errexit
set -o nounset
set -o pipefail

CODEGEN_GROUPS=""
MODE="sequential"
AVAILABLE_CODEGEN_OPTIONS=(
  "authentication_groups"
  "core_groups"
  "extensions_groups"
  "resources_groups"
  "operator_groups"
  "seedmanagement_groups"
  "operations_groups"
  "settings_groups"
  "operatorconfig_groups"
  "controllermanager_groups"
  "admissioncontroller_groups"
  "scheduler_groups"
  "gardenlet_groups"
  "resourcemanager_groups"
  "shoottolerationrestriction_groups"
  "shootdnsrewriting_groups"
  "provider_local_groups"
  "extensions_config_groups"
  "nodeagent_groups"
)

# Friendly reminder if workspace location is not in $GOPATH
SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )"
if [ "${SCRIPT_DIR}" != "$(realpath $GOPATH)/src/github.com/gardener/gardener/hack" ]; then
  echo "'hack/update-codegen.sh' script does not work correctly if your workspace is outside GOPATH"
  echo "Please check https://github.com/gardener/gardener/blob/master/docs/development/local_setup.md#get-the-sources"
  exit 1
fi

# We need to explicitly pass GO111MODULE=off to k8s.io/code-generator as it is significantly slower otherwise,
# see https://github.com/kubernetes/code-generator/issues/100.
export GO111MODULE=off

rm -f ${GOPATH}/bin/*-gen

CURRENT_DIR=$(dirname $0)
PROJECT_ROOT="${CURRENT_DIR}"/..
export PROJECT_ROOT

parse_flags() {
  while test $# -gt 0; do
    case "$1" in
      --mode)
        shift
        if [[ -n "$1" ]]; then
        MODE="$1"
        fi
        ;;
      --groups)
        shift
        CODEGEN_GROUPS="${1:-$CODEGEN_GROUPS}"
        ;;
      *)
        echo "Unknown argument: $1"
        exit 1
        ;;
    esac
    shift
  done
}

# core.gardener.cloud APIs

core_groups() {
  echo "Generating API groups for pkg/apis/core"

  bash "${PROJECT_ROOT}"/hack/generate-internal-groups.sh \
    deepcopy,defaulter,client,lister,informer \
    github.com/gardener/gardener/pkg/client/core \
    github.com/gardener/gardener/pkg/apis \
    github.com/gardener/gardener/pkg/apis \
    "core:v1beta1" \
    -h "${PROJECT_ROOT}/hack/LICENSE_BOILERPLATE.txt"

  bash "${PROJECT_ROOT}"/hack/generate-internal-groups.sh \
    conversion \
    github.com/gardener/gardener/pkg/client/core \
    github.com/gardener/gardener/pkg/apis \
    github.com/gardener/gardener/pkg/apis \
    "core:v1beta1" \
    -h "${PROJECT_ROOT}/hack/LICENSE_BOILERPLATE.txt"
}
export -f core_groups

# extensions.gardener.cloud APIs

extensions_groups() {
  echo "Generating API groups for pkg/apis/extensions"

  bash "${PROJECT_ROOT}"/hack/generate-groups.sh \
    "deepcopy" \
    github.com/gardener/gardener/pkg/apis \
    github.com/gardener/gardener/pkg/apis \
    "extensions:v1alpha1" \
    -h "${PROJECT_ROOT}/hack/LICENSE_BOILERPLATE.txt"
}
export -f extensions_groups

# resources.gardener.cloud APIs

resources_groups() {
  echo "Generating API groups for pkg/apis/resources"

  bash "${PROJECT_ROOT}"/hack/generate-groups.sh \
    deepcopy \
    github.com/gardener/gardener/pkg/apis \
    github.com/gardener/gardener/pkg/apis \
    "resources:v1alpha1" \
    -h "${PROJECT_ROOT}/hack/LICENSE_BOILERPLATE.txt"
}
export -f resources_groups

# operator.gardener.cloud APIs

operator_groups() {
  echo "Generating API groups for pkg/apis/operator"

  bash "${PROJECT_ROOT}"/hack/generate-groups.sh \
    deepcopy \
    github.com/gardener/gardener/pkg/apis \
    github.com/gardener/gardener/pkg/apis \
    "operator:v1alpha1" \
    -h "${PROJECT_ROOT}/hack/LICENSE_BOILERPLATE.txt"
}
export -f operator_groups

# seedmanagement.gardener.cloud APIs

seedmanagement_groups() {
  echo "Generating API groups for pkg/apis/seedmanagement"

  bash "${PROJECT_ROOT}"/hack/generate-groups.sh \
    "all" \
    github.com/gardener/gardener/pkg/client/seedmanagement \
    github.com/gardener/gardener/pkg/apis \
    "seedmanagement:v1alpha1" \
    -h "${PROJECT_ROOT}/hack/LICENSE_BOILERPLATE.txt"

  bash "${PROJECT_ROOT}"/hack/generate-internal-groups.sh \
    "deepcopy,defaulter,conversion" \
    github.com/gardener/gardener/pkg/client/seedmanagement \
    github.com/gardener/gardener/pkg/apis \
    github.com/gardener/gardener/pkg/apis \
    "seedmanagement:v1alpha1" \
    -h "${PROJECT_ROOT}/hack/LICENSE_BOILERPLATE.txt"
}
export -f seedmanagement_groups

# settings.gardener.cloud APIs

settings_groups() {
  echo "Generating API groups for pkg/apis/settings"

  bash "${PROJECT_ROOT}"/hack/generate-groups.sh \
    "all" \
    github.com/gardener/gardener/pkg/client/settings \
    github.com/gardener/gardener/pkg/apis \
    "settings:v1alpha1" \
    -h "${PROJECT_ROOT}/hack/LICENSE_BOILERPLATE.txt"

  bash "${PROJECT_ROOT}"/hack/generate-internal-groups.sh \
    "deepcopy,defaulter,conversion" \
    github.com/gardener/gardener/pkg/client/settings \
    github.com/gardener/gardener/pkg/apis \
    github.com/gardener/gardener/pkg/apis \
    "settings:v1alpha1" \
    -h "${PROJECT_ROOT}/hack/LICENSE_BOILERPLATE.txt"
}
export -f settings_groups

# operations.gardener.cloud APIs

operations_groups() {
  echo "Generating API groups for pkg/apis/operations"

  bash "${PROJECT_ROOT}"/hack/generate-internal-groups.sh \
    deepcopy,defaulter \
    github.com/gardener/gardener/pkg/apis \
    github.com/gardener/gardener/pkg/apis \
    github.com/gardener/gardener/pkg/apis \
    "operations:v1alpha1" \
    -h "${PROJECT_ROOT}/hack/LICENSE_BOILERPLATE.txt"

  bash "${PROJECT_ROOT}"/hack/generate-internal-groups.sh \
    conversion \
    github.com/gardener/gardener/pkg/client/operations \
    github.com/gardener/gardener/pkg/apis \
    github.com/gardener/gardener/pkg/apis \
    "operations:v1alpha1" \
    -h "${PROJECT_ROOT}/hack/LICENSE_BOILERPLATE.txt"
}
export -f operations_groups

# authentication.gardener.cloud APIs

authentication_groups() {
  echo "Generating API groups for pkg/apis/authentication"

  bash "${PROJECT_ROOT}"/hack/generate-groups.sh \
    deepcopy,defaulter \
    github.com/gardener/gardener/pkg/client/authentication \
    github.com/gardener/gardener/pkg/apis \
    "authentication:v1alpha1" \
    -h "${PROJECT_ROOT}/hack/LICENSE_BOILERPLATE.txt"

  bash "${PROJECT_ROOT}"/hack/generate-internal-groups.sh \
    deepcopy,defaulter,conversion \
    github.com/gardener/gardener/pkg/client/authentication \
    github.com/gardener/gardener/pkg/apis \
    github.com/gardener/gardener/pkg/apis \
    "authentication:v1alpha1" \
    -h "${PROJECT_ROOT}/hack/LICENSE_BOILERPLATE.txt"
}
export -f authentication_groups

# Componentconfig for operator

operatorconfig_groups() {
  echo "Generating API groups for pkg/operator/apis/config"

  bash "${PROJECT_ROOT}"/hack/generate-internal-groups.sh \
    deepcopy,defaulter \
    github.com/gardener/gardener/pkg/client/componentconfig \
    github.com/gardener/gardener/pkg/operator/apis \
    github.com/gardener/gardener/pkg/operator/apis \
    "config:v1alpha1" \
    -h "${PROJECT_ROOT}/hack/LICENSE_BOILERPLATE.txt"

  bash "${PROJECT_ROOT}"/hack/generate-internal-groups.sh \
    conversion \
    github.com/gardener/gardener/pkg/client/componentconfig \
    github.com/gardener/gardener/pkg/operator/apis \
    github.com/gardener/gardener/pkg/operator/apis \
    "config:v1alpha1" \
    --extra-peer-dirs=github.com/gardener/gardener/pkg/operator/apis/config,github.com/gardener/gardener/pkg/operator/apis/config/v1alpha1,k8s.io/apimachinery/pkg/apis/meta/v1,k8s.io/apimachinery/pkg/conversion,k8s.io/apimachinery/pkg/runtime,k8s.io/component-base/config,k8s.io/component-base/config/v1alpha1 \
    -h "${PROJECT_ROOT}/hack/LICENSE_BOILERPLATE.txt"
}
export -f operatorconfig_groups

# Componentconfig for controller-manager

controllermanager_groups() {
  echo "Generating API groups for pkg/controllermanager/apis/config"

  bash "${PROJECT_ROOT}"/hack/generate-internal-groups.sh \
    deepcopy,defaulter \
    github.com/gardener/gardener/pkg/client/componentconfig \
    github.com/gardener/gardener/pkg/controllermanager/apis \
    github.com/gardener/gardener/pkg/controllermanager/apis \
    "config:v1alpha1" \
    -h "${PROJECT_ROOT}/hack/LICENSE_BOILERPLATE.txt"

  bash "${PROJECT_ROOT}"/hack/generate-internal-groups.sh \
    conversion \
    github.com/gardener/gardener/pkg/client/componentconfig \
    github.com/gardener/gardener/pkg/controllermanager/apis \
    github.com/gardener/gardener/pkg/controllermanager/apis \
    "config:v1alpha1" \
    --extra-peer-dirs=github.com/gardener/gardener/pkg/controllermanager/apis/config,github.com/gardener/gardener/pkg/controllermanager/apis/config/v1alpha1,k8s.io/apimachinery/pkg/apis/meta/v1,k8s.io/apimachinery/pkg/conversion,k8s.io/apimachinery/pkg/runtime,k8s.io/component-base/config,k8s.io/component-base/config/v1alpha1 \
    -h "${PROJECT_ROOT}/hack/LICENSE_BOILERPLATE.txt"
}
export -f controllermanager_groups

# Componentconfig for admission controller

admissioncontroller_groups() {
  echo "Generating API groups for pkg/admissioncontroller/apis/config"

  bash "${PROJECT_ROOT}"/hack/generate-internal-groups.sh \
    deepcopy,defaulter \
    github.com/gardener/gardener/pkg/client/admissioncontrollerconfig \
    github.com/gardener/gardener/pkg/admissioncontroller/apis \
    github.com/gardener/gardener/pkg/admissioncontroller/apis \
    "config:v1alpha1" \
    -h "${PROJECT_ROOT}/hack/LICENSE_BOILERPLATE.txt"

  bash "${PROJECT_ROOT}"/hack/generate-internal-groups.sh \
    conversion \
    github.com/gardener/gardener/pkg/client/admissioncontrollerconfig \
    github.com/gardener/gardener/pkg/admissioncontroller/apis \
    github.com/gardener/gardener/pkg/admissioncontroller/apis \
    "config:v1alpha1" \
    --extra-peer-dirs=github.com/gardener/gardener/pkg/admissioncontroller/apis/config,github.com/gardener/gardener/pkg/admissioncontroller/apis/config/v1alpha1,k8s.io/apimachinery/pkg/apis/meta/v1,k8s.io/apimachinery/pkg/conversion,k8s.io/apimachinery/pkg/runtime,k8s.io/component-base/config,k8s.io/component-base/config/v1alpha1 \
    -h "${PROJECT_ROOT}/hack/LICENSE_BOILERPLATE.txt"
}
export -f admissioncontroller_groups

# Configuration for gardener scheduler

scheduler_groups() {
  echo "Generating API groups for pkg/scheduler/apis/config"

  bash "${PROJECT_ROOT}"/hack/generate-internal-groups.sh \
    deepcopy,defaulter \
    github.com/gardener/gardener/pkg/scheduler/client \
    github.com/gardener/gardener/pkg/scheduler/apis \
    github.com/gardener/gardener/pkg/scheduler/apis \
    "config:v1alpha1" \
    -h "${PROJECT_ROOT}/hack/LICENSE_BOILERPLATE.txt"

  bash "${PROJECT_ROOT}"/hack/generate-internal-groups.sh \
    conversion \
    github.com/gardener/gardener/pkg/scheduler/client \
    github.com/gardener/gardener/pkg/scheduler/apis \
    github.com/gardener/gardener/pkg/scheduler/apis \
    "config:v1alpha1" \
    --extra-peer-dirs=github.com/gardener/gardener/pkg/scheduler/apis/config,github.com/gardener/gardener/pkg/scheduler/apis/config/v1alpha1,k8s.io/apimachinery/pkg/apis/meta/v1,k8s.io/apimachinery/pkg/conversion,k8s.io/apimachinery/pkg/runtime,k8s.io/component-base/config,k8s.io/component-base/config/v1alpha1 \
    -h "${PROJECT_ROOT}/hack/LICENSE_BOILERPLATE.txt"
}
export -f scheduler_groups

# Componentconfig for gardenlet

gardenlet_groups() {
  echo "Generating API groups for pkg/gardenlet/apis/config"

  bash "${PROJECT_ROOT}"/hack/generate-internal-groups.sh \
    deepcopy,defaulter \
    github.com/gardener/gardener/pkg/client/componentconfig \
    github.com/gardener/gardener/pkg/gardenlet/apis \
    github.com/gardener/gardener/pkg/gardenlet/apis \
    "config:v1alpha1" \
    -h "${PROJECT_ROOT}/hack/LICENSE_BOILERPLATE.txt"

  bash "${PROJECT_ROOT}"/hack/generate-internal-groups.sh \
    conversion \
    github.com/gardener/gardener/pkg/client/componentconfig \
    github.com/gardener/gardener/pkg/gardenlet/apis \
    github.com/gardener/gardener/pkg/gardenlet/apis \
    "config:v1alpha1" \
    --extra-peer-dirs=github.com/gardener/gardener/pkg/gardenlet/apis/config,github.com/gardener/gardener/pkg/gardenlet/apis/config/v1alpha1,k8s.io/apimachinery/pkg/apis/meta/v1,k8s.io/apimachinery/pkg/conversion,k8s.io/apimachinery/pkg/runtime,k8s.io/component-base/config,k8s.io/component-base/config/v1alpha1 \
    -h "${PROJECT_ROOT}/hack/LICENSE_BOILERPLATE.txt"
}
export -f gardenlet_groups

# Componentconfig for resource-manager

resourcemanager_groups() {
  echo "Generating API groups for pkg/resourcemanager/apis/config"

  bash "${PROJECT_ROOT}"/hack/generate-internal-groups.sh \
    deepcopy,defaulter \
    github.com/gardener/gardener/pkg/client/componentconfig \
    github.com/gardener/gardener/pkg/resourcemanager/apis \
    github.com/gardener/gardener/pkg/resourcemanager/apis \
    "config:v1alpha1" \
    -h "${PROJECT_ROOT}/hack/LICENSE_BOILERPLATE.txt"

  bash "${PROJECT_ROOT}"/hack/generate-internal-groups.sh \
    conversion \
    github.com/gardener/gardener/pkg/client/componentconfig \
    github.com/gardener/gardener/pkg/resourcemanager/apis \
    github.com/gardener/gardener/pkg/resourcemanager/apis \
    "config:v1alpha1" \
    --extra-peer-dirs=github.com/gardener/gardener/pkg/resourcemanager/apis/config,github.com/gardener/gardener/pkg/resourcemanager/apis/config/v1alpha1,k8s.io/apimachinery/pkg/apis/meta/v1,k8s.io/apimachinery/pkg/conversion,k8s.io/apimachinery/pkg/runtime,k8s.io/component-base/config,k8s.io/component-base/config/v1alpha1 \
    -h "${PROJECT_ROOT}/hack/LICENSE_BOILERPLATE.txt"
}
export -f resourcemanager_groups

# Componentconfig for node-agent

nodeagent_groups() {
  echo "Generating API groups for pkg/nodeagent/apis/config"

  bash "${PROJECT_ROOT}"/hack/generate-internal-groups.sh \
    deepcopy,defaulter \
    github.com/gardener/gardener/pkg/client/componentconfig \
    github.com/gardener/gardener/pkg/nodeagent/apis \
    github.com/gardener/gardener/pkg/nodeagent/apis \
    "config:v1alpha1" \
    -h "${PROJECT_ROOT}/hack/LICENSE_BOILERPLATE.txt"

  bash "${PROJECT_ROOT}"/hack/generate-internal-groups.sh \
    conversion \
    github.com/gardener/gardener/pkg/client/componentconfig \
    github.com/gardener/gardener/pkg/nodeagent/apis \
    github.com/gardener/gardener/pkg/nodeagent/apis \
    "config:v1alpha1" \
    --extra-peer-dirs=github.com/gardener/gardener/pkg/nodeagent/apis/config,github.com/gardener/gardener/pkg/nodeagent/apis/config/v1alpha1,k8s.io/apimachinery/pkg/apis/meta/v1,k8s.io/apimachinery/pkg/conversion,k8s.io/apimachinery/pkg/runtime,k8s.io/component-base/config,k8s.io/component-base/config/v1alpha1 \
    -h "${PROJECT_ROOT}/hack/LICENSE_BOILERPLATE.txt"
}
export -f nodeagent_groups

# Componentconfig for admission plugins

shoottolerationrestriction_groups() {
  echo "Generating API groups for plugin/pkg/shoot/tolerationrestriction/apis/shoottolerationrestriction"

  bash "${PROJECT_ROOT}"/hack/generate-internal-groups.sh \
    deepcopy,defaulter \
    github.com/gardener/gardener/pkg/client/componentconfig \
    github.com/gardener/gardener/plugin/pkg/shoot/tolerationrestriction/apis \
    github.com/gardener/gardener/plugin/pkg/shoot/tolerationrestriction/apis \
    "shoottolerationrestriction:v1alpha1" \
    -h "${PROJECT_ROOT}/hack/LICENSE_BOILERPLATE.txt"

  bash "${PROJECT_ROOT}"/hack/generate-internal-groups.sh \
    conversion \
    github.com/gardener/gardener/pkg/client/componentconfig \
    github.com/gardener/gardener/plugin/pkg/shoot/tolerationrestriction/apis \
    github.com/gardener/gardener/plugin/pkg/shoot/tolerationrestriction/apis \
    "shoottolerationrestriction:v1alpha1" \
    --extra-peer-dirs=github.com/gardener/gardener/plugin/pkg/shoot/tolerationrestriction/apis/shoottolerationrestriction,github.com/gardener/gardener/plugin/pkg/shoot/tolerationrestriction/apis/shoottolerationrestriction/v1alpha1,k8s.io/apimachinery/pkg/apis/meta/v1,k8s.io/apimachinery/pkg/conversion,k8s.io/apimachinery/pkg/runtime,k8s.io/component-base/config,k8s.io/component-base/config/v1alpha1 \
    -h "${PROJECT_ROOT}/hack/LICENSE_BOILERPLATE.txt"
}
export -f shoottolerationrestriction_groups

shootdnsrewriting_groups() {
  echo "Generating API groups for plugin/pkg/shoot/dnsrewriting/apis/shootdnsrewriting"

  bash "${PROJECT_ROOT}"/hack/generate-internal-groups.sh \
    deepcopy,defaulter \
    github.com/gardener/gardener/pkg/client/componentconfig \
    github.com/gardener/gardener/plugin/pkg/shoot/dnsrewriting/apis \
    github.com/gardener/gardener/plugin/pkg/shoot/dnsrewriting/apis \
    "shootdnsrewriting:v1alpha1" \
    -h "${PROJECT_ROOT}/hack/LICENSE_BOILERPLATE.txt"

  bash "${PROJECT_ROOT}"/hack/generate-internal-groups.sh \
    conversion \
    github.com/gardener/gardener/pkg/client/componentconfig \
    github.com/gardener/gardener/plugin/pkg/shoot/dnsrewriting/apis \
    github.com/gardener/gardener/plugin/pkg/shoot/dnsrewriting/apis \
    "shootdnsrewriting:v1alpha1" \
    --extra-peer-dirs=github.com/gardener/gardener/plugin/pkg/shoot/dnsrewriting/apis/shootdnsrewriting,github.com/gardener/gardener/plugin/pkg/shoot/dnsrewriting/apis/shootdnsrewriting/v1alpha1,k8s.io/apimachinery/pkg/apis/meta/v1,k8s.io/apimachinery/pkg/conversion,k8s.io/apimachinery/pkg/runtime,k8s.io/component-base/config,k8s.io/component-base/config/v1alpha1 \
    -h "${PROJECT_ROOT}/hack/LICENSE_BOILERPLATE.txt"
}
export -f shootdnsrewriting_groups

# local.provider.extensions.gardener.cloud APIs

provider_local_groups() {
  echo "Generating API groups for pkg/provider-local/apis/local"

  bash "${PROJECT_ROOT}"/hack/generate-internal-groups.sh \
    deepcopy,defaulter \
    github.com/gardener/gardener/pkg/client/provider-local \
    github.com/gardener/gardener/pkg/provider-local/apis \
    github.com/gardener/gardener/pkg/provider-local/apis \
    "local:v1alpha1" \
    -h "${PROJECT_ROOT}/hack/LICENSE_BOILERPLATE.txt"

  bash "${PROJECT_ROOT}"/hack/generate-internal-groups.sh \
    conversion \
    github.com/gardener/gardener/pkg/client/provider-local \
    github.com/gardener/gardener/pkg/provider-local/apis \
    github.com/gardener/gardener/pkg/provider-local/apis \
    "local:v1alpha1" \
    --extra-peer-dirs=github.com/gardener/gardener/pkg/provider-local/apis/local,github.com/gardener/gardener/pkg/provider-local/apis/local/v1alpha1,k8s.io/apimachinery/pkg/apis/meta/v1,k8s.io/apimachinery/pkg/conversion,k8s.io/apimachinery/pkg/runtime \
    -h "${PROJECT_ROOT}/hack/LICENSE_BOILERPLATE.txt"
}
export -f provider_local_groups

# extensions/pkg/apis deepcopy methods

extensions_config_groups() {
  echo "Generating API groups for extensions/pkg/apis/config"

  bash "${PROJECT_ROOT}"/hack/generate-internal-groups.sh \
    "deepcopy" \
    github.com/gardener/gardener/extensions/pkg/apis \
    github.com/gardener/gardener/extensions/pkg/apis \
    github.com/gardener/gardener/extensions/pkg/apis \
    "config:v1alpha1" \
    -h "${PROJECT_ROOT}/hack/LICENSE_BOILERPLATE.txt"
}
export -f extensions_config_groups

# OpenAPI definitions

openapi_definitions() {
  echo "> Generating openapi definitions"
  rm -Rf ./${PROJECT_ROOT}/openapi/openapi_generated.go
  openapi-gen \
    --v 1 \
    --logtostderr \
    --input-dirs=github.com/gardener/gardener/pkg/apis/authentication/v1alpha1 \
    --input-dirs=github.com/gardener/gardener/pkg/apis/core/v1beta1 \
    --input-dirs=github.com/gardener/gardener/pkg/apis/settings/v1alpha1 \
    --input-dirs=github.com/gardener/gardener/pkg/apis/seedmanagement/v1alpha1 \
    --input-dirs=github.com/gardener/gardener/pkg/apis/operations/v1alpha1 \
    --input-dirs=k8s.io/api/core/v1 \
    --input-dirs=k8s.io/api/rbac/v1 \
    --input-dirs=k8s.io/api/autoscaling/v1 \
    --input-dirs=k8s.io/api/networking/v1 \
    --input-dirs=k8s.io/apimachinery/pkg/apis/meta/v1 \
    --input-dirs=k8s.io/apimachinery/pkg/api/resource \
    --input-dirs=k8s.io/apimachinery/pkg/types \
    --input-dirs=k8s.io/apimachinery/pkg/version \
    --input-dirs=k8s.io/apimachinery/pkg/runtime \
    --input-dirs=k8s.io/apimachinery/pkg/util/intstr \
    --report-filename=${PROJECT_ROOT}/pkg/openapi/api_violations.report \
    --output-package=github.com/gardener/gardener/pkg/openapi \
    -h "${PROJECT_ROOT}/hack/LICENSE_BOILERPLATE.txt"

}
export -f openapi_definitions

parse_flags "$@"

valid_options=()
invalid_options=()

if [[ -z "$CODEGEN_GROUPS" ]]; then
  valid_options=("${AVAILABLE_CODEGEN_OPTIONS[@]}")
else
  IFS=' ' read -ra OPTIONS_ARRAY <<< "$CODEGEN_GROUPS"
  for option in "${OPTIONS_ARRAY[@]}"; do
    valid=false
    for valid_option in "${AVAILABLE_CODEGEN_OPTIONS[@]}"; do
        if [[ "$option" == "$valid_option" ]]; then
            valid=true
            break
        fi
    done
    
    if $valid; then
        valid_options+=("$option")
    else
        invalid_options+=("$option")
    fi
  done

  if [[ ${#invalid_options[@]} -gt 0 ]]; then
    printf "ERROR: Invalid options: %s, Available options are: %s\n\n" "${invalid_options[*]}" "${AVAILABLE_CODEGEN_OPTIONS[*]}"
    exit 1
  fi
fi

printf "\n> Generating codegen for groups: %s\n" "${valid_options[*]}"
if [[ "$MODE" == "sequential" ]]; then
  for target in "${valid_options[@]}"; do
    "$target"
  done
elif [[ "$MODE" == "parallel" ]]; then
  parallel --will-cite ::: "${valid_options[@]}"
else
  printf "ERROR: Invalid mode ('%s'). Specify either 'parallel' or 'sequential'\n\n" "$MODE"
  exit 1
fi

openapi_definitions