add generate helm crds scripts (#1525)

Signed-off-by: liheng.zms <liheng.zms@alibaba-inc.com>

CONTRIBUTING.md

@@ -112,6 +112,23 @@ make test
 
 If you are going to contribute a feature with new API or needs significant effort, please submit a proposal in [./docs/proposals/](./docs/proposals) first.
 
+### Kruise Helm Charts
+[kruise charts](https://github.com/openkruise/charts) is openKruise charts repo, include kruise, kruise rollout, kruise game.
+You can add the corresponding charts package in the versions directory as follows:
+```
+ versions
+ - kruise-game
+ - kruise-rollout
+ - kruise-state-metrics
+ - kruise
+   - 1.5.0
+   - 1.5.1
+   - 1.6.0
+   - 1.6.1
+```
+
+**make generate_helm_crds** automatically generates crds files under the bin/ directory, which in turn simplifies the generation of helm charts.
+
 ## Engage to help anything
 
 We choose GitHub as the primary place for Openkruise to collaborate.

Makefile

@@ -12,7 +12,7 @@ GOBIN=$(shell go env GOBIN)
 endif
 GOOS ?= $(shell go env GOOS)
 
-# ENVTEST_K8S_VERSION refers to the version of kubebuilder assets to be downloaded by envtest binary. 
+# ENVTEST_K8S_VERSION refers to the version of kubebuilder assets to be downloaded by envtest binary.
 # Run `setup-envtest list` to list available versions.
 ENVTEST_K8S_VERSION ?= 1.28.0
 
@@ -173,6 +173,8 @@ run-kruise-e2e-test:
 	@echo -e "\n\033[36mRunning kruise e2e tests...\033[0m"
 	tools/hack/run-kruise-e2e-test.sh
 
+generate_helm_crds:
+	scripts/generate_helm_crds.sh
 
 # kruise-e2e-test runs kruise e2e tests.
 .PHONY: kruise-e2e-test

scripts/generate_helm_crds.sh

@@ -0,0 +1,47 @@
+#!/bin/bash
+
+# Check if yq command is installed, otherwise install it
+if ! command -v yq &> /dev/null; then
+    echo "yq command not found. You need install yq first."
+    exit 0
+fi
+
+rm -rf bin/templates
+mkdir bin/templates
+
+# Get the current directory
+current_dir=$(pwd)
+echo $current_dir
+# Create a temporary directory
+temp_dir=$(mktemp -d)
+echo $temp_dir
+
+kustomize build config/crd > $temp_dir/crds.yaml
+cd $temp_dir
+awk 'BEGIN {RS="\n---\n"} {print > ("output-" NR ".yaml")}' crds.yaml
+rm -f crds.yaml
+
+# Process each file in the directory
+for file in *; do
+    # Parse the YAML file and extract the value of the desired fields
+    group=$(yq eval '.spec.group' $file)
+    plural=$(yq eval '.spec.names.plural' $file)
+
+    # Remove leading and trailing whitespace from the field values
+    group=$(echo $group | sed -e 's/^ *//' -e 's/ *$//')
+    plural=$(echo $plural | sed -e 's/^ *//' -e 's/ *$//')
+
+    sed -i '.bak' '1i\
+{{- if .Values.crds.managed }}\
+ \
+---
+    ' $file
+    rm -f $file.bak
+    echo "{{- end }}" >> $file
+    # Rename the file using the extracted field values
+    mv $file "$current_dir/bin/templates/${group}_${plural}.yaml"
+done
+
+# Clean up the temporary directory
+cd ..
+rm -rf $temp_dir