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package system
import (
"context"
"errors"
"github.com/goss-org/goss/util"
)
type Package interface {
Name() string
Exists() (bool, error)
Installed() (bool, error)
Versions() ([]string, error)
}
var ErrNullPackage = errors.New("Could not detect Package type on this system, please use --package flag to explicity set it")
type NullPackage struct {
name string
}
func NewNullPackage(_ context.Context, name string, system *System, config util.Config) Package {
return &NullPackage{name: name}
}
func (p *NullPackage) Name() string { return p.name }
func (p *NullPackage) Exists() (bool, error) { return p.Installed() }
func (p *NullPackage) Installed() (bool, error) {
return false, ErrNullPackage
}
func (p *NullPackage) Versions() ([]string, error) {
return nil, ErrNullPackage
}
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