Add compliance policy for empty name and version (#3257)

* add policy for empty name and version

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

* default stub version

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

* modifying ids requires augmenting relationships

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

---------

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

cmd/syft/internal/options/catalog.go

@@ -37,6 +37,7 @@ type Catalog struct {
 	Scope             string              `yaml:"scope" json:"scope" mapstructure:"scope"`
 	Parallelism       int                 `yaml:"parallelism" json:"parallelism" mapstructure:"parallelism"` // the number of catalog workers to run in parallel
 	Relationships     relationshipsConfig `yaml:"relationships" json:"relationships" mapstructure:"relationships"`
+	Compliance        complianceConfig    `yaml:"compliance" json:"compliance" mapstructure:"compliance"`
 	Enrich            []string            `yaml:"enrich" json:"enrich" mapstructure:"enrich"`
 
 	// ecosystem-specific cataloger configuration
@@ -62,6 +63,7 @@ var _ interface {
 
 func DefaultCatalog() Catalog {
 	return Catalog{
+		Compliance:    defaultComplianceConfig(),
 		Scope:         source.SquashedScope.String(),
 		Package:       defaultPackageConfig(),
 		LinuxKernel:   defaultLinuxKernelConfig(),
@@ -79,6 +81,7 @@ func (cfg Catalog) ToSBOMConfig(id clio.Identification) *syft.CreateSBOMConfig {
 		WithTool(id.Name, id.Version).
 		WithParallelism(cfg.Parallelism).
 		WithRelationshipsConfig(cfg.ToRelationshipsConfig()).
+		WithComplianceConfig(cfg.ToComplianceConfig()).
 		WithSearchConfig(cfg.ToSearchConfig()).
 		WithPackagesConfig(cfg.ToPackagesConfig()).
 		WithFilesConfig(cfg.ToFilesConfig()).
@@ -104,6 +107,13 @@ func (cfg Catalog) ToRelationshipsConfig() cataloging.RelationshipsConfig {
 	}
 }
 
+func (cfg Catalog) ToComplianceConfig() cataloging.ComplianceConfig {
+	return cataloging.ComplianceConfig{
+		MissingName:    cfg.Compliance.MissingName,
+		MissingVersion: cfg.Compliance.MissingVersion,
+	}
+}
+
 func (cfg Catalog) ToFilesConfig() filecataloging.Config {
 	hashers, err := intFile.Hashers(cfg.File.Metadata.Digests...)
 	if err != nil {

cmd/syft/internal/options/compliance.go

@@ -0,0 +1,35 @@
+package options
+
+import (
+	"github.com/anchore/fangs"
+	"github.com/anchore/syft/syft/cataloging"
+)
+
+var (
+	_ fangs.FieldDescriber = (*complianceConfig)(nil)
+	_ fangs.PostLoader     = (*complianceConfig)(nil)
+)
+
+type complianceConfig struct {
+	MissingName    cataloging.ComplianceAction `mapstructure:"missing-name" json:"missing-name" yaml:"missing-name"`
+	MissingVersion cataloging.ComplianceAction `mapstructure:"missing-version" json:"missing-version" yaml:"missing-version"`
+}
+
+func defaultComplianceConfig() complianceConfig {
+	def := cataloging.DefaultComplianceConfig()
+	return complianceConfig{
+		MissingName:    def.MissingName,
+		MissingVersion: def.MissingVersion,
+	}
+}
+
+func (r *complianceConfig) DescribeFields(descriptions fangs.FieldDescriptionSet) {
+	descriptions.Add(&r.MissingName, "action to take when a package is missing a name")
+	descriptions.Add(&r.MissingVersion, "action to take when a package is missing a version")
+}
+
+func (r *complianceConfig) PostLoad() error {
+	r.MissingName = r.MissingName.Parse()
+	r.MissingVersion = r.MissingVersion.Parse()
+	return nil
+}