From 46edabef1fc1006092c51bb339c4244d439ecee2 Mon Sep 17 00:00:00 2001
From: Vitaly Kushner <vitaly@astrails.com>
Date: Sun, 5 Jul 2009 21:53:03 +0300
Subject: [PATCH] 'password' is not mandatory for SFTP

It can use SSH public keys to login.
---
 lib/astrails/safe/sftp.rb | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/lib/astrails/safe/sftp.rb b/lib/astrails/safe/sftp.rb
index f319159..9e898ff 100644
--- a/lib/astrails/safe/sftp.rb
+++ b/lib/astrails/safe/sftp.rb
@@ -5,7 +5,7 @@ class Sftp < Sink
       protected
 
       def active?
-        host && user && password
+        host && user
       end
 
       def path
@@ -16,7 +16,9 @@ def save
         puts "Uploading #{host}:#{full_path} via SFTP" if $_VERBOSE || $DRY_RUN
 
         unless $DRY_RUN || $LOCAL
-          Net::SFTP.start(host, user, :password => password) do |sftp|
+          opts = {}
+          opts[:password] = password if password
+          Net::SFTP.start(host, user, opts) do |sftp|
             puts "Sending #{@backup.path} to #{full_path}" if $_VERBOSE
             begin
               sftp.upload! @backup.path, full_path