fix(convert): Support YAML anchors in plugin options (#2733)

Author: kyleconroy

internal/config/convert/convert.go

@@ -59,6 +59,9 @@ func gen(n *yaml.Node) (interface{}, error) {
 
 		}
 
+	case yaml.AliasNode:
+		return gen(n.Alias)
+
 	default:
 		return nil, fmt.Errorf("unknown yaml value: %s (%s)", n.Value, n.Tag)
 

internal/config/convert/convert_test.go

@@ -0,0 +1,47 @@
+package convert
+
+import (
+	"testing"
+
+	"gopkg.in/yaml.v3"
+)
+
+const anchor = `
+sql:
+  - schema: query.sql
+    queries: query.sql
+    engine: postgresql
+    codegen:
+      - out: gateway/src/gateway/services/organization
+        plugin: py
+        options: &base-options
+          query_parameter_limit: 1
+          package: gateway
+          output_models_file_name: null
+          emit_module: true
+          emit_generators: false
+          emit_async: true
+
+  - schema: query.sql
+    queries: query.sql
+    engine: postgresql
+    codegen:
+      - out: gateway/src/gateway/services/project
+        plugin: py
+        options: *base-options
+`
+
+type config struct {
+	SQL yaml.Node `yaml:"sql"`
+}
+
+func TestAlias(t *testing.T) {
+	var a config
+	err := yaml.Unmarshal([]byte(anchor), &a)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if _, err := gen(&a.SQL); err != nil {
+		t.Fatal(err)
+	}
+}