cos

Documentation

Overview

Package cos extracts OS packages from Container Optimized OSes (go/cos).

Index

• Constants
• type Config
  • func DefaultConfig() Config
• type Extractor
  • func New(cfg Config) *Extractor
  • func (e Extractor) Extract(ctx context.Context, input *filesystem.ScanInput) ([]*extractor.Inventory, error)
  • func (e Extractor) FileRequired(path string, fileinfo fs.FileInfo) bool
  • func (e Extractor) Name() string
  • func (e Extractor) ToCPEs(i *extractor.Inventory) ([]string, error)
  • func (e Extractor) ToPURL(i *extractor.Inventory) (*purl.PackageURL, error)
  • func (e Extractor) Version() int
• type Metadata

Constants

const (
	// Name is the unique name of this extractor.
	Name = "os/cos"
)

Types

type Config

type Config struct {
	// Stats is a stats collector for reporting metrics.
	Stats stats.Collector
	// MaxFileSizeBytes is the maximum file size this extractor will unmarshal. If
	// `FileRequired` gets a bigger file, it will return false,
	MaxFileSizeBytes int64
}

Config is the configuration for the Extractor.

func DefaultConfig

func DefaultConfig() Config

DefaultConfig returns the default configuration for the extractor.

type Extractor

type Extractor struct {
	// contains filtered or unexported fields
}

Extractor extracts cos packages from cos database.

func New

func New(cfg Config) *Extractor

New returns a COS extractor.

For most use cases, initialize with: ``` e := New(DefaultConfig()) ```

func (Extractor) Extract

func (e Extractor) Extract(ctx context.Context, input *filesystem.ScanInput) ([]*extractor.Inventory, error)

Extract extracts packages from cos package info files passed through the scan input.

func (Extractor) FileRequired

func (e Extractor) FileRequired(path string, fileinfo fs.FileInfo) bool

FileRequired returns true if the specified file matches cos package info file pattern.

func (Extractor) Name

func (e Extractor) Name() string

Name of the extractor.

func (Extractor) ToCPEs

func (e Extractor) ToCPEs(i *extractor.Inventory) ([]string, error)

ToCPEs is not applicable as this extractor does not infer CPEs from the Inventory.

func (Extractor) ToPURL

func (e Extractor) ToPURL(i *extractor.Inventory) (*purl.PackageURL, error)

ToPURL converts an inventory created by this extractor into a PURL.

func (Extractor) Version

func (e Extractor) Version() int

Version of the extractor.

type Metadata

type Metadata struct {
	Name        string
	Version     string
	Category    string
	OSVersion   string
	OSVersionID string
}

Metadata holds parsing information for a COS package.