[chore][cmd/mdatagen] Use metadata.yaml as a schema source for references

cmd/mdatagen/go.mod

@@ -8,7 +8,6 @@ require (
 	github.com/stretchr/testify v1.11.1
 	go.opentelemetry.io/collector/component v1.57.0
 	go.opentelemetry.io/collector/component/componenttest v0.151.0
-	go.opentelemetry.io/collector/config/confighttp v0.151.0
 	go.opentelemetry.io/collector/config/configoptional v1.57.0
 	go.opentelemetry.io/collector/confmap v1.57.0
 	go.opentelemetry.io/collector/confmap/provider/fileprovider v1.57.0
@@ -34,7 +33,6 @@ require (
 	go.opentelemetry.io/collector/receiver/receivertest v0.151.0
 	go.opentelemetry.io/collector/receiver/xreceiver v0.151.0
 	go.opentelemetry.io/collector/scraper v0.151.0
-	go.opentelemetry.io/collector/scraper/scraperhelper v0.151.0
 	go.opentelemetry.io/collector/scraper/scrapertest v0.151.0
 	go.opentelemetry.io/collector/scraper/xscraper v0.151.0
 	go.opentelemetry.io/collector/service/hostcapabilities v0.151.0
@@ -50,56 +48,34 @@ require (
 )
 
 require (
-	github.com/Microsoft/go-winio v0.6.2 // indirect
 	github.com/cespare/xxhash/v2 v2.3.0 // indirect
 	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
-	github.com/felixge/httpsnoop v1.0.4 // indirect
-	github.com/foxboron/go-tpm-keyfiles v0.0.0-20251226215517-609e4778396f // indirect
-	github.com/fsnotify/fsnotify v1.10.1 // indirect
 	github.com/go-logr/logr v1.4.3 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/go-viper/mapstructure/v2 v2.5.0 // indirect
 	github.com/gobwas/glob v0.2.3 // indirect
-	github.com/golang/snappy v1.0.0 // indirect
-	github.com/google/go-tpm v0.9.8 // indirect
 	github.com/google/uuid v1.6.0 // indirect
 	github.com/hashicorp/go-version v1.9.0 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
-	github.com/klauspost/compress v1.18.6 // indirect
 	github.com/knadh/koanf/maps v0.1.2 // indirect
 	github.com/knadh/koanf/providers/confmap v1.0.0 // indirect
 	github.com/knadh/koanf/v2 v2.3.4 // indirect
 	github.com/mitchellh/copystructure v1.2.0 // indirect
 	github.com/mitchellh/reflectwalk v1.0.2 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.3-0.20250322232337-35a7c28c31ee // indirect
-	github.com/pierrec/lz4/v4 v4.1.26 // indirect
 	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
-	github.com/rs/cors v1.11.1 // indirect
 	github.com/spf13/pflag v1.0.10 // indirect
 	go.opentelemetry.io/auto/sdk v1.2.1 // indirect
-	go.opentelemetry.io/collector/client v1.57.0 // indirect
 	go.opentelemetry.io/collector/component/componentstatus v0.151.0 // indirect
-	go.opentelemetry.io/collector/config/configauth v1.57.0 // indirect
-	go.opentelemetry.io/collector/config/configcompression v1.57.0 // indirect
-	go.opentelemetry.io/collector/config/configmiddleware v1.57.0 // indirect
-	go.opentelemetry.io/collector/config/confignet v1.57.0 // indirect
-	go.opentelemetry.io/collector/config/configopaque v1.57.0 // indirect
-	go.opentelemetry.io/collector/config/configtls v1.57.0 // indirect
 	go.opentelemetry.io/collector/consumer/consumererror v0.151.0 // indirect
-	go.opentelemetry.io/collector/extension/extensionauth v1.57.0 // indirect
-	go.opentelemetry.io/collector/extension/extensionmiddleware v0.151.0 // indirect
 	go.opentelemetry.io/collector/internal/componentalias v0.151.0 // indirect
 	go.opentelemetry.io/collector/internal/fanoutconsumer v0.151.0 // indirect
 	go.opentelemetry.io/collector/pdata/testdata v0.151.0 // indirect
-	go.opentelemetry.io/collector/receiver/receiverhelper v0.151.0 // indirect
 	go.opentelemetry.io/collector/service v0.151.0 // indirect
-	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.68.0 // indirect
 	go.opentelemetry.io/otel/sdk v1.43.0 // indirect
-	golang.org/x/crypto v0.50.0 // indirect
 	golang.org/x/mod v0.35.0 // indirect
-	golang.org/x/net v0.53.0 // indirect
 	golang.org/x/sync v0.20.0 // indirect
 	golang.org/x/sys v0.43.0 // indirect
 	golang.org/x/tools v0.44.0 // indirect
@@ -239,8 +215,4 @@ replace go.opentelemetry.io/collector/internal/componentalias => ../../internal/
 
 replace go.opentelemetry.io/collector/config/confignet => ../../config/confignet
 
-replace go.opentelemetry.io/collector/receiver/receiverhelper => ../../receiver/receiverhelper
-
-replace go.opentelemetry.io/collector/scraper/scraperhelper => ../../scraper/scraperhelper
-
 replace go.opentelemetry.io/collector/scraper/xscraper => ../../scraper/xscraper

cmd/mdatagen/internal/command.go

@@ -194,7 +194,7 @@ func run(ymlPath string) error {
 		toGenerate[filepath.Join(tmplDir, "testdata", "config.yaml.tmpl")] = filepath.Join(testdataDir, "config.yaml")
 		toGenerate[filepath.Join(tmplDir, "config.go.tmpl")] = filepath.Join(codeDir, "generated_config.go")
 		toGenerate[filepath.Join(tmplDir, "config_test.go.tmpl")] = filepath.Join(codeDir, "generated_config_test.go")
-		toGenerate[filepath.Join(tmplDir, "config.schema.yaml.tmpl")] = filepath.Join(codeDir, "config.schema.yaml")
+		toGenerate[filepath.Join(tmplDir, "config.schema.yaml.tmpl")] = filepath.Join(codeDir, "metadata.yaml")
 	}
 
 	if len(md.ResourceAttributes) > 0 { // only generate resource files if resource attributes are configured

cmd/mdatagen/internal/command_test.go

@@ -442,7 +442,7 @@ foo
 				require.NoFileExists(t, filepath.Join(tmpdir, "config.schema.json"))
 			}
 
-			schemaYamlPath := filepath.Join(tmpdir, generatedPackageDir, "config.schema.yaml")
+			schemaYamlPath := filepath.Join(tmpdir, generatedPackageDir, "metadata.yaml")
 			if tt.wantMetricsSchemaYamlGenerated {
 				require.FileExists(t, schemaYamlPath)
 				contents, err = os.ReadFile(filepath.Clean(schemaYamlPath))