feat: 3626 add option enable license content; disable by default (#3631)

---------
Signed-off-by: Christopher Phillips <32073428+spiffcs@users.noreply.github.com>

syft/pkg/cataloger/golang/licenses.go

@@ -214,7 +214,7 @@ func (c *goLicenseResolver) findLicensesInFS(ctx context.Context, scanner licens
 		}
 		defer internal.CloseAndLogError(rdr, filePath)
 
-		parsed, err := licenses.Search(ctx, scanner, file.NewLocationReadCloser(file.NewLocation(filePath), rdr))
+		parsed, err := scanner.PkgSearch(ctx, file.NewLocationReadCloser(file.NewLocation(filePath), rdr))
 		if err != nil {
 			log.Debugf("error parsing license file %s: %v", filePath, err)
 			return nil
@@ -267,7 +267,7 @@ func (c *goLicenseResolver) parseLicenseFromLocation(ctx context.Context, scanne
 			return nil, err
 		}
 		defer internal.CloseAndLogError(contents, l.RealPath)
-		parsed, err := licenses.Search(ctx, scanner, file.NewLocationReadCloser(l, contents))
+		parsed, err := scanner.PkgSearch(ctx, file.NewLocationReadCloser(l, contents))
 		if err != nil {
 			return nil, err
 		}

syft/pkg/cataloger/golang/licenses_test.go

@@ -71,7 +71,12 @@ func Test_LicenseSearch(t *testing.T) {
 
 	localVendorDir := filepath.Join(wd, "test-fixtures", "licenses-vendor")
 
-	licenseScanner := licenses.NewScanner(licensecheck.Scan, float64(75))
+	sc := &licenses.ScannerConfig{
+		CoverageThreshold: 75,
+		Scanner:           licensecheck.Scan,
+	}
+	licenseScanner, err := licenses.NewScanner(sc)
+	require.NoError(t, err)
 
 	tests := []struct {
 		name     string
@@ -296,7 +301,10 @@ func Test_findVersionPath(t *testing.T) {
 
 func Test_walkDirErrors(t *testing.T) {
 	resolver := newGoLicenseResolver("", CatalogerConfig{})
-	_, err := resolver.findLicensesInFS(context.Background(), licenses.NewScanner(licensecheck.Scan, float64(75)), "somewhere", badFS{})
+	sc := &licenses.ScannerConfig{Scanner: licensecheck.Scan, CoverageThreshold: 75}
+	scanner, err := licenses.NewScanner(sc)
+	require.NoError(t, err)
+	_, err = resolver.findLicensesInFS(context.Background(), scanner, "somewhere", badFS{})
 	require.Error(t, err)
 }
 
@@ -314,7 +322,9 @@ func Test_noLocalGoModDir(t *testing.T) {
 	validTmp := t.TempDir()
 	require.NoError(t, os.MkdirAll(filepath.Join(validTmp, "mod@ver"), 0700|os.ModeDir))
 
-	licenseScanner := licenses.NewScanner(licensecheck.Scan, float64(75))
+	sc := &licenses.ScannerConfig{Scanner: licensecheck.Scan, CoverageThreshold: 75}
+	licenseScanner, err := licenses.NewScanner(sc)
+	require.NoError(t, err)
 	tests := []struct {
 		name    string
 		dir     string

syft/pkg/cataloger/golang/parse_go_binary.go

@@ -63,7 +63,10 @@ func newGoBinaryCataloger(opts CatalogerConfig) *goBinaryCataloger {
 func (c *goBinaryCataloger) parseGoBinary(ctx context.Context, resolver file.Resolver, _ *generic.Environment, reader file.LocationReadCloser) ([]pkg.Package, []artifact.Relationship, error) {
 	var pkgs []pkg.Package
 
-	licenseScanner := licenses.ContextLicenseScanner(ctx)
+	licenseScanner, err := licenses.ContextLicenseScanner(ctx)
+	if err != nil {
+		return nil, nil, err
+	}
 
 	unionReader, err := unionreader.GetUnionReader(reader.ReadCloser)
 	if err != nil {

syft/pkg/cataloger/golang/parse_go_binary_test.go

@@ -170,7 +170,9 @@ func TestBuildGoPkgInfo(t *testing.T) {
 		},
 	}
 
-	licenseScanner := licenses.NewScanner(licensecheck.Scan, float64(75))
+	sc := &licenses.ScannerConfig{Scanner: licensecheck.Scan, CoverageThreshold: 75}
+	licenseScanner, err := licenses.NewScanner(sc)
+	require.NoError(t, err)
 
 	tests := []struct {
 		name          string

syft/pkg/cataloger/golang/parse_go_mod.go

@@ -35,7 +35,10 @@ func newGoModCataloger(opts CatalogerConfig) *goModCataloger {
 func (c *goModCataloger) parseGoModFile(ctx context.Context, resolver file.Resolver, _ *generic.Environment, reader file.LocationReadCloser) ([]pkg.Package, []artifact.Relationship, error) {
 	packages := make(map[string]pkg.Package)
 
-	licenseScanner := licenses.ContextLicenseScanner(ctx)
+	licenseScanner, err := licenses.ContextLicenseScanner(ctx)
+	if err != nil {
+		return nil, nil, fmt.Errorf("unable to create default license scanner: %w", err)
+	}
 
 	contents, err := io.ReadAll(reader)
 	if err != nil {