Revert compress post-processor to master to get baseline test

post-processor/compress/artifact.go

@@ -8,31 +8,37 @@ import (
 const BuilderId = "packer.post-processor.compress"
 
 type Artifact struct {
-	builderId string
-	dir       string
-	f         []string
+	Path     string
+	Provider string
 }
 
-func (a *Artifact) BuilderId() string {
+func NewArtifact(provider, path string) *Artifact {
+	return &Artifact{
+		Path:     path,
+		Provider: provider,
+	}
+}
+
+func (*Artifact) BuilderId() string {
 	return BuilderId
 }
 
-func (a *Artifact) Files() []string {
-	return a.f
+func (self *Artifact) Id() string {
+	return ""
 }
 
-func (*Artifact) Id() string {
-	return "COMPRESS"
+func (self *Artifact) Files() []string {
+	return []string{self.Path}
 }
 
-func (a *Artifact) String() string {
-	return fmt.Sprintf("VM compressed files in directory: %s", a.dir)
+func (self *Artifact) String() string {
+	return fmt.Sprintf("'%s' compressing: %s", self.Provider, self.Path)
 }
 
 func (*Artifact) State(name string) interface{} {
 	return nil
 }
 
-func (a *Artifact) Destroy() error {
-	return os.RemoveAll(a.dir)
+func (self *Artifact) Destroy() error {
+	return os.Remove(self.Path)
 }