Add enricher list package. No enrichers to list.

PiperOrigin-RevId: 747642123

Author: alowayed

enricher/list/list.go

@@ -0,0 +1,68 @@
+// Copyright 2025 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package enricherlist provides methods to initialize enrichers from attributes like names or capabilities.
+package enricherlist
+
+import (
+	"fmt"
+
+	"github.com/google/osv-scalibr/enricher"
+	"github.com/google/osv-scalibr/plugin"
+)
+
+// InitFn is the enricher initializer function.
+type InitFn func() enricher.Enricher
+
+// InitMap is a map of names to enricher initializer functions.
+type InitMap map[string][]InitFn
+
+var (
+	// All enrichers.
+	All = InitMap{}
+)
+
+// FromNames returns a list of enrichers from a list of names.
+func FromNames(names []string) ([]enricher.Enricher, error) {
+	if len(names) == 0 {
+		return nil, nil
+	}
+	return nil, fmt.Errorf("not implemented")
+}
+
+// FromCapabilities returns all enrichers that can run under the specified
+// capabilities (OS, direct filesystem access, network access, etc.) of the
+// scanning environment.
+func FromCapabilities(capabilities *plugin.Capabilities) []enricher.Enricher {
+	var all []enricher.Enricher
+	for _, initers := range All {
+		for _, initer := range initers {
+			all = append(all, initer())
+		}
+	}
+	return FilterByCapabilities(all, capabilities)
+}
+
+// FilterByCapabilities returns all enrichers from the given list that can run
+// under the specified capabilities (OS, direct filesystem access, network
+// access, etc.) of the scanning environment.
+func FilterByCapabilities(es []enricher.Enricher, capabilities *plugin.Capabilities) []enricher.Enricher {
+	var result []enricher.Enricher
+	for _, e := range es {
+		if err := plugin.ValidateRequirements(e, capabilities); err == nil {
+			result = append(result, e)
+		}
+	}
+	return result
+}

enricher/list/list_test.go

@@ -0,0 +1,23 @@
+// Copyright 2025 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package enricherlist_test
+
+import "testing"
+
+func TestFromNames(t *testing.T) {}
+
+func TestFromCapabilities(t *testing.T) {}
+
+func TestFilterByCapabilities(t *testing.T) {}