drive: implement cleanup (empty trash) - addresses #575

docs/content/drive.md

@@ -173,6 +173,12 @@ By default rclone will delete files permanently when requested.  If
 sending them to the trash is required instead then use the
 `--drive-use-trash` flag.
 
+### Emptying trash ###
+
+If you wish to empty your trash you can use the `rclone cleanup remote:`
+command which will permanently delete all your trashed files. This command
+does not take any path arguments.
+
 ### Specific options ###
 
 Here are the command line options specific to this cloud storage

docs/content/overview.md

@@ -124,7 +124,7 @@ operations more efficient.
 | Dropbox                      | Yes   | Yes  | Yes  | Yes     | No [#575](https://github.com/ncw/rclone/issues/575) | No  | Yes |
 | FTP                          | No    | No   | Yes  | Yes     | No      | No    | Yes          |
 | Google Cloud Storage         | Yes   | Yes  | No   | No      | No      | Yes   | No [#1614](https://github.com/ncw/rclone/issues/1614) |
-| Google Drive                 | Yes   | Yes  | Yes  | Yes     | No [#575](https://github.com/ncw/rclone/issues/575) | No  | Yes |
+| Google Drive                 | Yes   | Yes  | Yes  | Yes     | Yes     | No  | Yes |
 | HTTP                         | No    | No   | No   | No      | No      | No    | No           |
 | Hubic                        | Yes † | Yes  | No   | No      | No      | Yes   | No [#1614](https://github.com/ncw/rclone/issues/1614) |
 | Microsoft Azure Blob Storage | Yes   | Yes  | No   | No      | No      | Yes   | No           |

drive/drive.go

@@ -905,6 +905,19 @@ func (f *Fs) Purge() error {
 	return nil
 }
 
+// CleanUp empties the trash
+func (f *Fs) CleanUp() error {
+	err := f.pacer.Call(func() (bool, error) {
+		err := f.svc.Files.EmptyTrash().Do()
+		return shouldRetry(err)
+	})
+
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
 // Move src to this remote using server side move operations.
 //
 // This is stored with the remote path given

drive/drive_internal_test.go

@@ -3,9 +3,10 @@ package drive
 import (
 	"testing"
 
+	"google.golang.org/api/drive/v2"
+
 	"github.com/pkg/errors"
 	"github.com/stretchr/testify/assert"
-	"google.golang.org/api/drive/v2"
 )
 
 func TestInternalParseExtensions(t *testing.T) {