From 52247e9a9f94bd23297e97703ebe8cc13c0af265 Mon Sep 17 00:00:00 2001
From: Nick Craig-Wood <nick@craig-wood.com>
Date: Wed, 19 Aug 2020 18:02:21 +0100
Subject: [PATCH] local: return fs.ErrorDirNot found from About and Purge

Before this a stat error was returned which wasn't very helpful.
---
 backend/local/about_unix.go | 4 ++++
 backend/local/local.go      | 4 ++++
 2 files changed, 8 insertions(+)

diff --git a/backend/local/about_unix.go b/backend/local/about_unix.go
index f856a7964..3c31d17a1 100644
--- a/backend/local/about_unix.go
+++ b/backend/local/about_unix.go
@@ -4,6 +4,7 @@ package local
 
 import (
 	"context"
+	"os"
 	"syscall"
 
 	"github.com/pkg/errors"
@@ -15,6 +16,9 @@ func (f *Fs) About(ctx context.Context) (*fs.Usage, error) {
 	var s syscall.Statfs_t
 	err := syscall.Statfs(f.root, &s)
 	if err != nil {
+		if os.IsNotExist(err) {
+			return nil, fs.ErrorDirNotFound
+		}
 		return nil, errors.Wrap(err, "failed to read disk usage")
 	}
 	bs := int64(s.Bsize) // nolint: unconvert
diff --git a/backend/local/local.go b/backend/local/local.go
index 90aad3c96..887c66725 100644
--- a/backend/local/local.go
+++ b/backend/local/local.go
@@ -625,6 +625,10 @@ func (f *Fs) Purge(ctx context.Context, dir string) error {
 	dir = f.localPath(dir)
 	fi, err := f.lstat(dir)
 	if err != nil {
+		// already purged
+		if os.IsNotExist(err) {
+			return fs.ErrorDirNotFound
+		}
 		return err
 	}
 	if !fi.Mode().IsDir() {