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version.go
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version.go
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package version
import (
"fmt"
"github.com/nextlinux/govulners/govulners/pkg"
"github.com/anchore/syft/syft/cpe"
)
type Version struct {
Raw string
Format Format
rich rich
}
type rich struct {
cpeVers []cpe.CPE
semVer *semanticVersion
apkVer *apkVersion
debVer *debVersion
rpmVer *rpmVersion
kbVer *kbVersion
portVer *portageVersion
}
func NewVersion(raw string, format Format) (*Version, error) {
version := &Version{
Raw: raw,
Format: format,
}
err := version.populate()
if err != nil {
return nil, err
}
return version, nil
}
func NewVersionFromPkg(p pkg.Package) (*Version, error) {
ver, err := NewVersion(p.Version, FormatFromPkgType(p.Type))
if err != nil {
return nil, err
}
ver.rich.cpeVers = p.CPEs
return ver, nil
}
func (v *Version) populate() error {
switch v.Format {
case SemanticFormat:
ver, err := newSemanticVersion(v.Raw)
v.rich.semVer = ver
return err
case ApkFormat:
ver, err := newApkVersion(v.Raw)
v.rich.apkVer = ver
return err
case DebFormat:
ver, err := newDebVersion(v.Raw)
v.rich.debVer = ver
return err
case RpmFormat:
ver, err := newRpmVersion(v.Raw)
v.rich.rpmVer = &ver
return err
case PythonFormat:
// use the fuzzy constraint
return nil
case KBFormat:
ver := newKBVersion(v.Raw)
v.rich.kbVer = &ver
return nil
case GemFormat:
ver, err := newGemfileVersion(v.Raw)
v.rich.semVer = ver
return err
case PortageFormat:
ver := newPortageVersion(v.Raw)
v.rich.portVer = &ver
return nil
case UnknownFormat:
// use the raw string + fuzzy constraint
return nil
}
return fmt.Errorf("no rich version populated (format=%s)", v.Format)
}
func (v Version) CPEs() []cpe.CPE {
return v.rich.cpeVers
}
func (v Version) String() string {
return fmt.Sprintf("%s (%s)", v.Raw, v.Format)
}