--- a/rakelib/hglib.rb	Wed Jul 24 22:37:26 2019 +0100
+++ b/rakelib/hglib.rb	Thu Jul 25 11:00:12 2019 +0100
@@ -38,6 +38,12 @@
 module HG
   @@config = nil
 
+  class Exception < ::Exception
+  end
+
+  class RepositoryNotFoundException < Exception
+  end
+
   # Cross-platform way of finding an executable in the $PATH.
   #
   #   which('ruby') #=> /usr/bin/ruby
@@ -107,15 +113,23 @@
 
     if block_given?
       stdout, stderr, status = Open3.capture3(*cmd)
+      # For command that deal with remotes, handle check whether the failure
+      # is because of missing remote repository. If so, raise exception. 
+      if status.exitstatus == 255
+        if stdout =~ /remote:\ *Repository.*not found/ or stderr =~ /abort:.*HTTP.*404/
+          raise RepositoryNotFoundException.new("Remote repository not found!")
+        end
+      end
+
       case block.arity
       when 1
         STDOUT.print stdout if defined? RakeFileUtils and RakeFileUtils.verbose
-        STDERR.print stderr if defined? RakeFileUtils and RakeFileUtils.verbose       
+        STDERR.print stderr if defined? RakeFileUtils and RakeFileUtils.verbose
         yield status
-      when 2                
+      when 2
         STDERR.print stderr if defined? RakeFileUtils and RakeFileUtils.verbose
         yield status, stdout
-      when 3        
+      when 3
         yield status, stdout, stderr
       else
         raise Exception.new("invalid arity of given block")
@@ -300,7 +314,7 @@
         raise Exception.new("Not a Mercurial repository (missing .hg directory): #{dir}")
       end
       @path = dir
-      initialize_config    
+      initialize_config
     end
 
     def initialize_config
@@ -436,7 +450,7 @@
     end
 
     def pull1(remote = 'default', user: nil, pass: nil, rev: nil, bookmarks: nil)
-      hg('pull', remote, ssh: sshconf(remote), config: authconf(remote, user, pass), rev: rev, bookmark: bookmarks) do |status, stdout|
+      hg('pull', remote, ssh: sshconf(remote), config: authconf(remote, user, pass), rev: rev, bookmark: bookmarks) do |status, stdout, stderr |
         STDOUT.print stdout
         case status.exitstatus
           when 0
@@ -444,6 +458,7 @@
           when 1
             raise Exception.new("Failed to 'pull' from #{remote} (update had unresolved conflicts)")
           else
+            STDERR.print stderr
             raise Exception.new("Failed to 'pull' from #{remote} (exit code #{status.exitstatus})")
         end
       end
@@ -459,6 +474,7 @@
           when 1
             puts "No new changes coming from #{remote}"
           else
+            STDERR.print stderr
             raise Exception.new("Failed to do 'incoming' from #{remote} (exit code #{status.exitstatus})")
         end
       end
@@ -472,6 +488,8 @@
         # again. See #shaky_remote?()
         begin
           pull1(remote, user: user, pass: pass, rev: rev, bookmarks: bookmarks)
+        rescue RepositoryNotFoundException => rnfe
+          raise rnfe
         rescue Exception
           delay = 30 + rand * 100
           puts "Oops, remote is shaky, retrying after #{delay}"
@@ -490,13 +508,15 @@
 
     def outgoing(remote = 'default', user: nil, pass: nil, rev: nil, &block)      
       if !block_given?
-      hg('outgoing', remote, ssh: sshconf(remote), config: authconf(remote, user, pass), rev: rev) do |status, stdout|
+      hg('outgoing', remote, ssh: sshconf(remote), config: authconf(remote, user, pass), rev: rev) do |status, stdout, stderr|
+        STDOUT.print stdout
         case status.exitstatus
           when 0
-            STDOUT.print stdout
+            # notning 
           when 1
             puts "No new changes going to #{remote}"
           else
+            STDERR.print stderr
             raise Exception.new("Failed to do 'outgoing' from #{remote} (exit code #{status.exitstatus})")
         end
       end