Keith Zantow 1c37bab2b2
feat: add config command (#2892)
Signed-off-by: Keith Zantow <kzantow@gmail.com>
2024-05-23 15:18:09 -04:00

140 lines
3.6 KiB
Go

package options
import (
"fmt"
"sort"
"strings"
"github.com/hashicorp/go-multierror"
"github.com/scylladb/go-set/strset"
"github.com/anchore/clio"
"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"
)
var _ interface {
clio.FlagAdder
clio.PostLoader
clio.FieldDescriber
} = (*Output)(nil)
// Output has the standard output options syft accepts: multiple -o, --file, --template
type Output struct {
AllowableOptions []string `yaml:"-" json:"-" mapstructure:"-"`
AllowMultipleOutputs bool `yaml:"-" json:"-" mapstructure:"-"`
AllowToFile bool `yaml:"-" json:"-" mapstructure:"-"`
Outputs []string `yaml:"output" json:"output" mapstructure:"output"` // -o, the format to use for output
OutputFile `yaml:",inline" json:"" mapstructure:",squash"`
Format `yaml:"format" json:"format" mapstructure:"format"`
}
func DefaultOutput() Output {
return Output{
AllowMultipleOutputs: true,
AllowToFile: true,
Outputs: []string{string(table.ID)},
OutputFile: OutputFile{
Enabled: true,
},
Format: DefaultFormat(),
}
}
func (o *Output) PostLoad() error {
var errs error
for _, loader := range []clio.PostLoader{&o.OutputFile, &o.Format} {
if err := loader.PostLoad(); err != nil {
errs = multierror.Append(errs, err)
}
}
return errs
}
func (o *Output) AddFlags(flags clio.FlagSet) {
var names []string
for _, id := range supportedIDs() {
names = append(names, id.String())
}
sort.Strings(names)
flags.StringArrayVarP(&o.Outputs, "output", "o",
fmt.Sprintf("report output format (<format>=<file> to output to a file), formats=%v", names))
}
func (o *Output) DescribeFields(descriptions clio.FieldDescriptionSet) {
descriptions.Add(&o.Outputs, `the output format(s) of the SBOM report (options: syft-table, syft-text, syft-json, spdx-json, ...)
to specify multiple output files in differing formats, use a list:
output:
- "syft-json=<syft-json-output-file>"
- "spdx-json=<spdx-json-output-file>"
`)
}
func (o Output) SBOMWriter() (sbom.Writer, error) {
names := o.OutputNameSet()
if len(o.Outputs) > 1 && !o.AllowMultipleOutputs {
return nil, fmt.Errorf("only one output format is allowed (given %d: %s)", len(o.Outputs), names)
}
usesTemplateOutput := names.Has(string(template.ID))
if usesTemplateOutput && o.Format.Template.Path == "" {
return nil, fmt.Errorf(`must specify path to template file when using "template" output format`)
}
encoders, err := o.Encoders()
if err != nil {
return nil, err
}
if !o.AllowToFile {
for _, opt := range o.Outputs {
if strings.Contains(opt, "=") {
return nil, fmt.Errorf("file output is not allowed ('-o format=path' should be '-o format')")
}
}
}
return makeSBOMWriter(o.Outputs, o.LegacyFile, encoders)
}
func (o Output) OutputNameSet() *strset.Set {
names := strset.New()
for _, output := range o.Outputs {
fields := strings.Split(output, "=")
names.Add(fields[0])
}
return names
}
func supportedIDs() []sbom.FormatID {
encs := []sbom.FormatID{
// encoders that support a single version
syftjson.ID,
github.ID,
table.ID,
text.ID,
template.ID,
// encoders that support multiple versions
cyclonedxxml.ID,
cyclonedxjson.ID,
spdxtagvalue.ID,
spdxjson.ID,
}
return encs
}