packer-cn/builder/virtualbox/common/artifact.go

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package common
import (
"fmt"
"os"
"path/filepath"
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"github.com/hashicorp/packer/packer"
)
// This is the common builder ID to all of these artifacts.
const BuilderId = "mitchellh.virtualbox"
// Artifact is the result of running the VirtualBox builder, namely a set
// of files associated with the resulting machine.
type artifact struct {
dir string
f []string
}
// NewArtifact returns a VirtualBox artifact containing the files
// in the given directory.
func NewArtifact(dir string) (packer.Artifact, error) {
files := make([]string, 0, 5)
visit := func(path string, info os.FileInfo, err error) error {
if err != nil {
return err
}
if !info.IsDir() {
files = append(files, path)
}
return err
}
if err := filepath.Walk(dir, visit); err != nil {
return nil, err
}
return &artifact{
dir: dir,
f: files,
}, nil
}
func (*artifact) BuilderId() string {
return BuilderId
}
func (a *artifact) Files() []string {
return a.f
}
func (*artifact) Id() string {
return "VM"
}
func (a *artifact) String() string {
return fmt.Sprintf("VM files in directory: %s", a.dir)
}
func (a *artifact) State(name string) interface{} {
return nil
}
func (a *artifact) Destroy() error {
return os.RemoveAll(a.dir)
}