Add FundingLinks and Maintainers to PackageInfo

README.md

@@ -1,6 +1,6 @@
 # enrichment
 
-A Go library for fetching package metadata from multiple sources using [PURLs](https://github.com/package-url/purl-spec). It queries the [ecosyste.ms](https://ecosyste.ms) API, [deps.dev](https://deps.dev), or package registries directly, and returns a unified `PackageInfo` struct with license, version, description, repository, and changelog information.
+A Go library for fetching package metadata from multiple sources using [PURLs](https://github.com/package-url/purl-spec). It queries the [ecosyste.ms](https://ecosyste.ms) API, [deps.dev](https://deps.dev), or package registries directly, and returns a unified `PackageInfo` struct with license, version, description, repository, changelog, funding, and maintainer information.
 
 ## Install
 

client.go

@@ -43,6 +43,19 @@ type PackageInfo struct {
 
 	// Security advisories (ecosyste.ms only)
 	Advisories []Advisory
+
+	// Funding and maintainers (ecosyste.ms only)
+	FundingLinks []string
+	Maintainers  []Maintainer
+}
+
+// Maintainer is a person or account that maintains a package on its registry.
+type Maintainer struct {
+	Login string
+	Name  string
+	Email string
+	URL   string
+	Role  string
 }
 
 // Advisory is a security advisory affecting a package.

ecosystems.go

@@ -73,6 +73,8 @@ func (c *EcosystemsClient) BulkLookup(ctx context.Context, purls []string) (map[
 		info.DependentReposCount = pkg.DependentReposCount
 
 		info.Advisories = convertAdvisories(pkg.Advisories)
+		info.FundingLinks = pkg.FundingLinks
+		info.Maintainers = convertMaintainers(pkg.Maintainers)
 
 		result[purlStr] = info
 	}
@@ -155,6 +157,33 @@ func (c *EcosystemsClient) GetVersion(ctx context.Context, purlStr string) (*Ver
 	return info, nil
 }
 
+func convertMaintainers(maintainers []packages.Maintainer) []Maintainer {
+	if len(maintainers) == 0 {
+		return nil
+	}
+	result := make([]Maintainer, 0, len(maintainers))
+	for _, m := range maintainers {
+		out := Maintainer{}
+		if m.Login != nil {
+			out.Login = *m.Login
+		}
+		if m.Name != nil {
+			out.Name = *m.Name
+		}
+		if m.Email != nil {
+			out.Email = *m.Email
+		}
+		if m.HtmlUrl != nil {
+			out.URL = *m.HtmlUrl
+		}
+		if m.Role != nil {
+			out.Role = *m.Role
+		}
+		result = append(result, out)
+	}
+	return result
+}
+
 func convertAdvisories(advisories []packages.Advisory) []Advisory {
 	if len(advisories) == 0 {
 		return nil

enrichment_test.go

@@ -5,7 +5,10 @@ import (
 	"encoding/json"
 	"net/http"
 	"net/http/httptest"
+	"reflect"
 	"testing"
+
+	"github.com/ecosyste-ms/ecosystems-go/packages"
 )
 
 const testVersionLodash = "4.17.21"
@@ -127,6 +130,66 @@ func TestAdvisoryMapping(t *testing.T) {
 	}
 }
 
+func TestConvertMaintainers(t *testing.T) {
+	login := "alice"
+	name := "Alice Example"
+	email := "alice@example.com"
+	htmlURL := "https://www.npmjs.com/~alice"
+	role := "owner"
+
+	t.Run("populated", func(t *testing.T) {
+		got := convertMaintainers([]packages.Maintainer{
+			{Login: &login, Name: &name, Email: &email, HtmlUrl: &htmlURL, Role: &role},
+			{Login: &login},
+		})
+		want := []Maintainer{
+			{Login: "alice", Name: "Alice Example", Email: "alice@example.com", URL: "https://www.npmjs.com/~alice", Role: "owner"},
+			{Login: "alice"},
+		}
+		if !reflect.DeepEqual(got, want) {
+			t.Errorf("convertMaintainers() = %+v, want %+v", got, want)
+		}
+	})
+
+	t.Run("nil fields", func(t *testing.T) {
+		got := convertMaintainers([]packages.Maintainer{{}})
+		if len(got) != 1 || got[0] != (Maintainer{}) {
+			t.Errorf("convertMaintainers([{}]) = %+v, want [{}]", got)
+		}
+	})
+
+	t.Run("empty", func(t *testing.T) {
+		if got := convertMaintainers(nil); got != nil {
+			t.Errorf("convertMaintainers(nil) = %v, want nil", got)
+		}
+		if got := convertMaintainers([]packages.Maintainer{}); got != nil {
+			t.Errorf("convertMaintainers(empty) = %v, want nil", got)
+		}
+	})
+}
+
+func TestPackageInfoFundingAndMaintainers(t *testing.T) {
+	info := &PackageInfo{
+		FundingLinks: []string{"https://github.com/sponsors/alice", "https://opencollective.com/foo"},
+		Maintainers: []Maintainer{
+			{Login: "alice", Role: "owner"},
+		},
+	}
+
+	if len(info.FundingLinks) != 2 {
+		t.Errorf("len(FundingLinks) = %d, want 2", len(info.FundingLinks))
+	}
+	if info.FundingLinks[0] != "https://github.com/sponsors/alice" {
+		t.Errorf("FundingLinks[0] = %q", info.FundingLinks[0])
+	}
+	if len(info.Maintainers) != 1 {
+		t.Fatalf("len(Maintainers) = %d, want 1", len(info.Maintainers))
+	}
+	if info.Maintainers[0].Login != "alice" || info.Maintainers[0].Role != "owner" {
+		t.Errorf("Maintainers[0] = %+v", info.Maintainers[0])
+	}
+}
+
 func TestPackageInfoPopulationFields(t *testing.T) {
 	info := &PackageInfo{
 		Downloads:              1000000,