+
+ header += ' (Plugin: ' + plugin_name + ")\n"
+ header += '-' * header.size # Underline the header.
+
+ return header
+end
+
+
+plugin_module = nil
+
+if mode == :rm then
+ plugin_module = RmPlugin
+elsif mode == :mv then
+ plugin_module = MvPlugin
+else
+ # Safe, catch-all default
+ plugin_module = PrunePlugin
+end
+
+# Buffer the output so that we can avoid printing the informational
+# header when no plugins produce output.
+require 'stringio'
+output_buffer = StringIO.new()
+$stdout = output_buffer
+
+# Parse the remaining arguments as User/Domain objects. If we get some
+# other argument that isn't one of those, it's an error.
+parsed_args = []
+ARGV.each do |arg|
+ begin
+ u = User.new(arg)
+ parsed_args << u
+ rescue InvalidUserError
+ begin
+ d = Domain.new(arg)
+ parsed_args << d
+ rescue InvalidDomainError
+ STDERR.puts "ERROR: invalid user/domain argument #{arg}"
+ Kernel.exit(ExitCodes::BAD_COMMAND_LINE)
+ end
+ end
+end
+
+begin
+ plugin_module.run(cfg, *parsed_args)
+ensure
+ # Now restore stdout, and print the header plus whatever the plugins
+ # produced if they produced anything. If they didn't produce any
+ # output, then we avoid printing the header.
+ #
+ # This gets wrapped in an "ensure" block because otherwise, if
+ # plugin_module.run() crashes, the traceback will get stored in
+ # output_buffer and never get printed.
+ $stdout = STDOUT
+ if output_buffer.size > 0 then
+ puts make_header(plugin_module.to_s())
+ puts output_buffer.string()
+ end