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encoders.go
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/
encoders.go
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package format
import (
"fmt"
"github.com/hashicorp/go-multierror"
"github.com/anchore/syft/syft/format/cyclonedxjson"
"github.com/anchore/syft/syft/format/cyclonedxxml"
"github.com/anchore/syft/syft/format/github"
"github.com/anchore/syft/syft/format/spdxjson"
"github.com/anchore/syft/syft/format/spdxtagvalue"
"github.com/anchore/syft/syft/format/syftjson"
"github.com/anchore/syft/syft/format/table"
"github.com/anchore/syft/syft/format/template"
"github.com/anchore/syft/syft/format/text"
"github.com/anchore/syft/syft/sbom"
)
const AllVersions = "all-versions"
type EncodersConfig struct {
Template template.EncoderConfig
SyftJSON syftjson.EncoderConfig
SPDXJSON spdxjson.EncoderConfig
SPDXTagValue spdxtagvalue.EncoderConfig
CyclonedxJSON cyclonedxjson.EncoderConfig
CyclonedxXML cyclonedxxml.EncoderConfig
}
func Encoders() []sbom.FormatEncoder {
encs, _ := DefaultEncodersConfig().Encoders()
return encs
}
func DefaultEncodersConfig() EncodersConfig {
cfg := EncodersConfig{
Template: template.DefaultEncoderConfig(),
SyftJSON: syftjson.DefaultEncoderConfig(),
SPDXJSON: spdxjson.DefaultEncoderConfig(),
SPDXTagValue: spdxtagvalue.DefaultEncoderConfig(),
CyclonedxJSON: cyclonedxjson.DefaultEncoderConfig(),
CyclonedxXML: cyclonedxxml.DefaultEncoderConfig(),
}
// empty value means to support all versions
cfg.SPDXJSON.Version = AllVersions
cfg.SPDXTagValue.Version = AllVersions
cfg.CyclonedxJSON.Version = AllVersions
cfg.CyclonedxXML.Version = AllVersions
return cfg
}
func (o EncodersConfig) Encoders() ([]sbom.FormatEncoder, error) {
var l encodersList
if o.Template.TemplatePath != "" {
l.addWithErr(template.ID)(o.templateEncoders())
}
l.addWithErr(syftjson.ID)(o.syftJSONEncoders())
l.add(table.ID)(table.NewFormatEncoder())
l.add(text.ID)(text.NewFormatEncoder())
l.add(github.ID)(github.NewFormatEncoder())
l.addWithErr(cyclonedxxml.ID)(o.cyclonedxXMLEncoders())
l.addWithErr(cyclonedxjson.ID)(o.cyclonedxJSONEncoders())
l.addWithErr(spdxjson.ID)(o.spdxJSONEncoders())
l.addWithErr(spdxtagvalue.ID)(o.spdxTagValueEncoders())
return l.encoders, l.err
}
func (o EncodersConfig) templateEncoders() ([]sbom.FormatEncoder, error) {
enc, err := template.NewFormatEncoder(o.Template)
return []sbom.FormatEncoder{enc}, err
}
func (o EncodersConfig) syftJSONEncoders() ([]sbom.FormatEncoder, error) {
enc, err := syftjson.NewFormatEncoderWithConfig(o.SyftJSON)
return []sbom.FormatEncoder{enc}, err
}
func (o EncodersConfig) cyclonedxXMLEncoders() ([]sbom.FormatEncoder, error) {
var (
encs []sbom.FormatEncoder
errs error
)
cfg := o.CyclonedxXML
var versions []string
if cfg.Version == AllVersions {
versions = cyclonedxxml.SupportedVersions()
} else {
versions = []string{cfg.Version}
}
for _, v := range versions {
cfg.Version = v
enc, err := cyclonedxxml.NewFormatEncoderWithConfig(cfg)
if err != nil {
errs = multierror.Append(errs, err)
} else {
encs = append(encs, enc)
}
}
return encs, errs
}
func (o EncodersConfig) cyclonedxJSONEncoders() ([]sbom.FormatEncoder, error) {
var (
encs []sbom.FormatEncoder
errs error
)
cfg := o.CyclonedxJSON
var versions []string
if cfg.Version == AllVersions {
versions = cyclonedxjson.SupportedVersions()
} else {
versions = []string{cfg.Version}
}
for _, v := range versions {
cfg.Version = v
enc, err := cyclonedxjson.NewFormatEncoderWithConfig(cfg)
if err != nil {
errs = multierror.Append(errs, err)
} else {
encs = append(encs, enc)
}
}
return encs, errs
}
func (o EncodersConfig) spdxJSONEncoders() ([]sbom.FormatEncoder, error) {
var (
encs []sbom.FormatEncoder
errs error
)
cfg := o.SPDXJSON
var versions []string
if cfg.Version == AllVersions {
versions = spdxjson.SupportedVersions()
} else {
versions = []string{cfg.Version}
}
for _, v := range versions {
cfg.Version = v
enc, err := spdxjson.NewFormatEncoderWithConfig(cfg)
if err != nil {
errs = multierror.Append(errs, err)
} else {
encs = append(encs, enc)
}
}
return encs, errs
}
func (o EncodersConfig) spdxTagValueEncoders() ([]sbom.FormatEncoder, error) {
var (
encs []sbom.FormatEncoder
errs error
)
cfg := o.SPDXTagValue
var versions []string
if cfg.Version == AllVersions {
versions = spdxtagvalue.SupportedVersions()
} else {
versions = []string{cfg.Version}
}
for _, v := range versions {
cfg.Version = v
enc, err := spdxtagvalue.NewFormatEncoderWithConfig(cfg)
if err != nil {
errs = multierror.Append(errs, err)
} else {
encs = append(encs, enc)
}
}
return encs, errs
}
type encodersList struct {
encoders []sbom.FormatEncoder
err error
}
func (l *encodersList) addWithErr(name sbom.FormatID) func([]sbom.FormatEncoder, error) {
return func(encs []sbom.FormatEncoder, err error) {
if err != nil {
l.err = multierror.Append(l.err, fmt.Errorf("unable to configure %q format encoder: %w", name, err))
return
}
for _, enc := range encs {
if enc == nil {
l.err = multierror.Append(l.err, fmt.Errorf("unable to configure %q format encoder: nil encoder returned", name))
continue
}
l.encoders = append(l.encoders, enc)
}
}
}
func (l *encodersList) add(name sbom.FormatID) func(...sbom.FormatEncoder) {
return func(encs ...sbom.FormatEncoder) {
for _, enc := range encs {
if enc == nil {
l.err = multierror.Append(l.err, fmt.Errorf("unable to configure %q format encoder: nil encoder returned", name))
continue
}
l.encoders = append(l.encoders, enc)
}
}
}