add support for local schemas

pkg/registry/registry.go

@@ -1,71 +1,9 @@
 package registry
 
-import (
-	"fmt"
-	"io/ioutil"
-	"net/http"
-	"strings"
-)
-
 type Manifest struct {
 	Kind, Version string
 }
 
 type Registry interface {
-	DownloadSchema(kind, apiVersion string) error
+	DownloadSchema(resourceKind, resourceAPIVersion, k8sVersion string) ([]byte, error)
 }
-
-type KubernetesRegistry struct {
-	baseURL    string
-	strict     bool
-}
-
-func NewKubernetesRegistry(strict bool) *KubernetesRegistry {
-	return &KubernetesRegistry{
-		baseURL:    "https://kubernetesjsonschema.dev",
-		strict:     strict,
-	}
-}
-
-
-func (r KubernetesRegistry) schemaURL(resourceKind, resourceAPIVersion, k8sVersion string) string {
-	normalisedVersion := k8sVersion
-	if normalisedVersion != "master" {
-		normalisedVersion = "v" + normalisedVersion
-	}
-
-	strictSuffix := ""
-	if r.strict {
-		strictSuffix = "-strict"
-	}
-
-	groupParts := strings.Split(resourceAPIVersion, "/")
-	versionParts := strings.Split(groupParts[0], ".")
-
-	kindSuffix := "-" + strings.ToLower(versionParts[0])
-	if len(groupParts) > 1 {
-		kindSuffix += "-" + strings.ToLower(groupParts[1])
-	}
-
-	return fmt.Sprintf("%s/%s-standalone%s/%s%s.json", r.baseURL, normalisedVersion, strictSuffix, strings.ToLower(resourceKind), kindSuffix)
-}
-
-func (r KubernetesRegistry) DownloadSchema(resourceKind, resourceAPIVersion, k8sVersion string) ([]byte, error) {
-	url := r.schemaURL(resourceKind, resourceAPIVersion, k8sVersion)
-
-	resp, err := http.Get(url)
-	if err != nil {
-		return []byte{}, fmt.Errorf("failed downloading schema at %s: %s", url, err)
-	}
-	defer resp.Body.Close()
-
-	body, err :=  ioutil.ReadAll(resp.Body)
-	if err != nil {
-		return []byte{}, fmt.Errorf("failed downloading schema at %s: %s", url, err)
-	}
-
-	fmt.Printf("downloaded %s\n", url)
-
-	return body, nil
-}
-