`kcl import` fails to process multiple CRDs separated by "---" in a single YAML file

[suin]

Bug Report

1. Minimal reproduce step (Required)

1. Create a file named crds.yaml with the following content:

apiVersion: apiextensions.k8s.io/v1
kind: CustomResourceDefinition
metadata:
  name: foo.example.com
spec:
  group: example.com
  versions:
    - name: v1
      served: true
      storage: true
      schema:
        openAPIV3Schema:
          type: object
          properties:
            spec:
              type: object
              properties:
                field1:
                  type: string
  scope: Namespaced
  names:
    plural: foo
    singular: foo
    kind: Foo
---
apiVersion: apiextensions.k8s.io/v1
kind: CustomResourceDefinition
metadata:
  name: bar.example.com
spec:
  group: example.com
  versions:
    - name: v1
      served: true
      storage: true
      schema:
        openAPIV3Schema:
          type: object
          properties:
            spec:
              type: object
              properties:
                field2:
                  type: string
  scope: Namespaced
  names:
    plural: bar
    singular: bar
    kind: Bar

2. Run the following command:

kcl import -m crd -s crds.yaml

2. What did you expect to see? (Required)

The models directory should be generated with the following structure:

models
├── k8s
│  └── apimachinery
│     └── pkg
│        └── apis
│           └── meta
│              └── v1
│                 ├── managed_fields_entry.k
│                 ├── object_meta.k
│                 └── owner_reference.k
├── kcl.mod
├── kcl.mod.lock
└── v1
   ├── example_com_v1_bar.k
   └── example_com_v1_foo.k

3. What did you see instead (Required)

The command produces the following error:

2024/08/23 10:44:49 import.go:82: [ERROR] could not generate swagger spec: crds.yaml, err: couldn't get version/kind; json parse error: json: cannot unmarshal string into Go value of type struct { APIVersion string "json:\"apiVersion,omitempty\""; Kind string "json:\"kind,omitempty\"" }

The models directory is generated, but it's incomplete.

4. What is your KCL components version? (Required)

0.10.0-beta.2

Additional Information:

1. If the crds.yaml file contains only one CRD without the --- separator, the import works correctly.
2. Even with a single CRD, if the --- separator is present, the same error occurs.
3. This issue prevents users from easily importing multiple CRDs from a single file, which is a common format provided by CRD repositories and APIs. For example, it hinders the ability to directly import CRDs from sources like https://doc.crds.dev/raw/github.com/crossplane/crossplane, which returns multiple CRDs separated by ---.

[suin]

Workaround for importing multiple CRDs:

mkdir crds
cat crds.yaml | awk '/^---$/{i++}{print > "crds/"(i+1)".yaml"}'
kcl import -m crd -s crds/*.yaml

This splits the multi-CRD YAML file into separate files and imports them.
Note: Requires Unix-like environment with awk.

[suin]

Thank you for fixing this! 🙏