poc for schema import

alpha/declcfg/declcfg.go

@@ -19,13 +19,15 @@ const (
 	SchemaPackage = "olm.package"
 	SchemaChannel = "olm.channel"
 	SchemaBundle  = "olm.bundle"
+	SchemaDeprecation = "olm.catalog.deprecation"
 )
 
 type DeclarativeConfig struct {
-	Packages []Package
-	Channels []Channel
-	Bundles  []Bundle
-	Others   []Meta
+	Packages     []Package
+	Channels     []Channel
+	Bundles      []Bundle
+	Deprecations map[string]Deprecation  // mapping package name to deprecation
+	Others       []Meta
 }
 
 type Package struct {
@@ -90,6 +92,20 @@ type RelatedImage struct {
 	Image string `json:"image"`
 }
 
+
+type Deprecation struct {
+	Schema  string `json:"schema"`
+	Package string `json:"package"`
+	Name	string `json:"name,omitempty"`
+	Deprecations []DeprecationEntry `json:"deprecations"`
+}
+
+type DeprecationEntry struct {
+	Schema  string `json:"schema"`
+	Name	string `json:"name,omitempty"`
+	Message json.RawMessage `json:"message"`
+}
+
 type Meta struct {
 	Schema  string
 	Package string

alpha/declcfg/load.go

@@ -297,6 +297,18 @@ func LoadReader(r io.Reader) (*DeclarativeConfig, error) {
 				return fmt.Errorf("parse bundle: %v", err)
 			}
 			cfg.Bundles = append(cfg.Bundles, b)
+		case SchemaDeprecation:
+			var d Deprecation
+			if err := json.Unmarshal(in.Blob, &d); err != nil {
+				return fmt.Errorf("parse deprecation: %v", err)
+			}
+			if cfg.Deprecations == nil {
+				cfg.Deprecations = make(map[string]Deprecation)
+			}
+			if _, ok := cfg.Deprecations[d.Package]; ok {
+				return fmt.Errorf("deprecation for package %q already exists", d.Package)
+			}
+			cfg.Deprecations[d.Package] = d
 		case "":
 			return fmt.Errorf("object '%s' is missing root schema field", string(in.Blob))
 		default: