post-processor/manifest: allow to strip path components from artifact path

Signed-off-by: Vasiliy Tolstov <v.tolstov@selfip.ru>

post-processor/manifest/post-processor.go

@@ -6,6 +6,7 @@ import (
 	"io/ioutil"
 	"log"
 	"os"
+	"path/filepath"
 	"time"
 
 	"github.com/mitchellh/packer/common"
@@ -17,9 +18,9 @@ import (
 type Config struct {
 	common.PackerConfig `mapstructure:",squash"`
 
-	Filename string `mapstructure:"filename"`
-
-	ctx interpolate.Context
+	Filename     string `mapstructure:"filename"`
+	StripPath    bool   `mapstructure:"strip_path"`
+	ctx          interpolate.Context
 }
 
 type PostProcessor struct {
@@ -58,11 +59,16 @@ func (p *PostProcessor) PostProcess(ui packer.Ui, source packer.Artifact) (packe
 
 	// Create the current artifact.
 	for _, name := range source.Files() {
+		af := ArtifactFile{}
 		if fi, err = os.Stat(name); err == nil {
-			artifact.ArtifactFiles = append(artifact.ArtifactFiles, ArtifactFile{Name: name, Size: fi.Size()})
-		} else {
-			artifact.ArtifactFiles = append(artifact.ArtifactFiles, ArtifactFile{Name: name})
+			af.Size = fi.Size()
 		}
+		if p.config.StripPath {
+			af.Name = filepath.Base(name)
+		} else {
+			af.Name = name
+		}
+		artifact.ArtifactFiles = append(artifact.ArtifactFiles, af)
 	}
 	artifact.ArtifactId = source.Id()
 	artifact.BuilderType = p.config.PackerBuilderType

website/source/docs/post-processors/manifest.html.md

@@ -22,6 +22,7 @@ You can specify manifest more than once and write each build to its own file, or
 ### Optional:
 
 -   `filename` (string) The manifest will be written to this file. This defaults to `packer-manifest.json`.
+-   `strip_path` (bool) Write only filename without the path to the manifest file. This defaults to false.
 
 ### Example Configuration
 
@@ -32,7 +33,8 @@ You can simply add `{"type":"manifest"}` to your post-processor section. Below i
   "post-processors": [
     {
       "type": "manifest",
-      "filename": "manifest.json"
+      "filename": "manifest.json",
+      "strip_path": true
     }
   ]
 }