Add s3_uri and file_path support

README.md

@@ -103,11 +103,13 @@ object's filename is the resulting version.
 
 Places the following files in the destination:
 
-* `(filename)`: The file fetched from the bucket.
+* `(filename)`: The file fetched from the bucket (if `skip_download` is not `true`).
 
 * `url`: A file containing the URL of the object. If `private` is true, this
   URL will be signed.
 
+* `s3_uri`: A file containing the S3 URI of the object (for use with `aws cp`, etc.)
+
 * `version`: The version identified in the file name.
 
 * `tags.json`: The object's tags represented as a JSON object. Only written if `download_tags` is set to true.

in/command.go

@@ -10,7 +10,7 @@ import (
 	"path/filepath"
 	"strconv"
 
-	"github.com/concourse/s3-resource"
+	s3resource "github.com/concourse/s3-resource"
 	"github.com/concourse/s3-resource/versions"
 )
 
@@ -28,6 +28,10 @@ func (up *RequestURLProvider) s3URL(request Request, remotePath string) string {
 	return up.s3Client.URL(request.Source.Bucket, remotePath, request.Source.Private, request.Version.VersionID)
 }
 
+func GetS3URI(request Request, remotePath string) string {
+	return "s3://" + request.Source.Bucket + "/" + remotePath
+}
+
 type Command struct {
 	s3client    s3resource.S3Client
 	urlProvider RequestURLProvider
@@ -56,6 +60,7 @@ func (command *Command) Run(destinationDir string, request Request) (Response, e
 	var versionNumber string
 	var versionID string
 	var url string
+	var s3_uri string
 	var isInitialVersion bool
 	var skipDownload bool
 
@@ -152,9 +157,13 @@ func (command *Command) Run(destinationDir string, request Request) (Response, e
 		if err = command.writeURLFile(destinationDir, url); err != nil {
 			return Response{}, err
 		}
+		s3_uri = GetS3URI(request, remotePath)
+		if err = command.writeS3URIFile(destinationDir, s3_uri); err != nil {
+			return Response{}, err
+		}
 	}
 
-	err = command.writeVersionFile(versionNumber, destinationDir)
+	err = command.writeVersionFile(destinationDir, versionNumber)
 	if err != nil {
 		return Response{}, err
 	}
@@ -182,7 +191,11 @@ func (command *Command) writeURLFile(destDir string, url string) error {
 	return ioutil.WriteFile(filepath.Join(destDir, "url"), []byte(url), 0644)
 }
 
-func (command *Command) writeVersionFile(versionNumber string, destDir string) error {
+func (command *Command) writeS3URIFile(destDir string, s3_uri string) error {
+	return ioutil.WriteFile(filepath.Join(destDir, "s3_uri"), []byte(s3_uri), 0644)
+}
+
+func (command *Command) writeVersionFile(destDir string, versionNumber string) error {
 	return ioutil.WriteFile(filepath.Join(destDir, "version"), []byte(versionNumber), 0644)
 }