From d29ccafa61068998aab105aeada9078473ee8e18 Mon Sep 17 00:00:00 2001
From: klauspost <klauspost@gmail.com>
Date: Thu, 13 Aug 2015 15:27:49 +0200
Subject: [PATCH] Check if local path exists, and use it if so.

path.Scheme contains the drive on Windows, so the existing check doesn't work.
Also checks the length of the path, so it doesn't crash with OOB.
---
 cmd/restic/global.go | 29 +++++++++++++++++++++++++++--
 1 file changed, 27 insertions(+), 2 deletions(-)

diff --git a/cmd/restic/global.go b/cmd/restic/global.go
index b71f7aa25..163ef6504 100644
--- a/cmd/restic/global.go
+++ b/cmd/restic/global.go
@@ -132,7 +132,14 @@ func (o GlobalOptions) OpenRepository() (*repository.Repository, error) {
 // * s3://region/bucket -> amazon s3 bucket
 // * sftp://user@host/foo/bar -> remote sftp repository on host for user at path foo/bar
 // * sftp://host//tmp/backup -> remote sftp repository on host at path /tmp/backup
+// * c:\temp -> local repository at c:\temp - the path must exist
 func open(u string) (backend.Backend, error) {
+	// Check if directory that exists
+	fi, err := os.Stat(u)
+	if err == nil && fi.IsDir() {
+		return local.Open(u)
+	}
+
 	url, err := url.Parse(u)
 	if err != nil {
 		return nil, err
@@ -140,7 +147,13 @@ func open(u string) (backend.Backend, error) {
 
 	if url.Scheme == "" {
 		return local.Open(url.Path)
-	} else if url.Scheme == "s3" {
+	}
+
+	if len(url.Path) < 1 {
+		return nil, fmt.Errorf("unable to parse url %v", url)
+	}
+
+	if url.Scheme == "s3" {
 		return s3.Open(url.Host, url.Path[1:])
 	}
 
@@ -156,6 +169,12 @@ func open(u string) (backend.Backend, error) {
 
 // Create the backend specified by URI.
 func create(u string) (backend.Backend, error) {
+	// Check if directory that exists
+	fi, err := os.Stat(u)
+	if err == nil && fi.IsDir() {
+		return local.Create(u)
+	}
+
 	url, err := url.Parse(u)
 	if err != nil {
 		return nil, err
@@ -163,7 +182,13 @@ func create(u string) (backend.Backend, error) {
 
 	if url.Scheme == "" {
 		return local.Create(url.Path)
-	} else if url.Scheme == "s3" {
+	}
+
+	if len(url.Path) < 1 {
+		return nil, fmt.Errorf("unable to parse url %v", url)
+	}
+
+	if url.Scheme == "s3" {
 		return s3.Open(url.Host, url.Path[1:])
 	}