Create parent directories as needed for SFTP backend.

If the user specifies a path with multiple directories that do not
exist, the SftpClient.CreateDirectory method does not create all the
missing parent directories.  As such, we have to do so ourselves.

This addresses issue #2080.

1 files changed, 20 insertions, 1 deletions

diff --git a/Duplicati/Library/Backend/SSHv2/SSHv2Backend.cs b/Duplicati/Library/Backend/SSHv2/SSHv2Backend.cs
index af0801f53..bc84feb3a 100644
--- a/Duplicati/Library/Backend/SSHv2/SSHv2Backend.cs
+++ b/Duplicati/Library/Backend/SSHv2/SSHv2Backend.cs
@@ -115,7 +115,26 @@ namespace Duplicati.Library.Backend
         public void CreateFolder()

         {

             CreateConnection();

-            m_con.CreateDirectory(m_path);

+

+            // Since the SftpClient.CreateDirectory method does not create all the parent directories

+            // as needed, this has to be done manually.

+            string partialPath = String.Empty;

+            foreach (string part in m_path.Split('/').Where(x => !String.IsNullOrEmpty(x)))
+            {

+                partialPath += $"/{part}";
+                if (m_con.Exists(partialPath))
+                {
+                    Renci.SshNet.Sftp.SftpFileAttributes attributes = m_con.GetAttributes(partialPath);
+                    if (!attributes.IsDirectory)
+                    {
+                        throw new ArgumentException($"The path {partialPath} already exists and is not a directory.");
+                    }
+                }

+                else
+                {
+                    m_con.CreateDirectory(partialPath);
+                }
+            }

         }

 

         public string DisplayName