1 files changed, 48 insertions, 0 deletions
diff --git a/pkg/net-ssh-multi-1.1/lib/net/ssh/multi/subsession.rb b/pkg/net-ssh-multi-1.1/lib/net/ssh/multi/subsession.rb
new file mode 100644
index 0000000..29e7866
--- /dev/null
+++ b/pkg/net-ssh-multi-1.1/lib/net/ssh/multi/subsession.rb
@@ -0,0 +1,48 @@
+require 'net/ssh/multi/session_actions'
+
+module Net; module SSH; module Multi
+
+  # A trivial class for representing a subset of servers. It is used
+  # internally for restricting operations to a subset of all defined
+  # servers.
+  #
+  #   subsession = session.with(:app)
+  #   subsession.exec("hostname")
+  class Subsession
+    include SessionActions
+
+    # The master session that spawned this subsession.
+    attr_reader :master
+
+    # The list of servers that this subsession can operate on.
+    attr_reader :servers
+
+    # Create a new subsession of the given +master+ session, that operates
+    # on the given +server_list+.
+    def initialize(master, server_list)
+      @master  = master
+      @servers = server_list.uniq
+    end
+
+    # Works as Array#slice, but returns a new subsession consisting of the
+    # given slice of servers in this subsession. The new subsession will have
+    # the same #master session as this subsession does.
+    #
+    #   s1 = subsession.slice(0)
+    #   s2 = subsession.slice(3, -1)
+    #   s3 = subsession.slice(1..4)
+    def slice(*args)
+      Subsession.new(master, Array(servers.slice(*args)))
+    end
+
+    # Returns a new subsession that consists of only the first server in the
+    # server list of the current subsession. This is just convenience for
+    # #slice(0):
+    #
+    #   s1 = subsession.first
+    def first
+      slice(0)
+    end
+  end
+
+end; end; end
+\ No newline at end of file