scm: bazaar: add adapter scm_cmd() to run "bzr" command.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@5905 e93f8b46-1217-0410-a6f0-8f06a7374b81

lib/redmine/scm/adapters/bazaar_adapter.rb

@@ -267,6 +267,17 @@ module Redmine
           end
           @aro
         end
+
+        def scm_cmd(*args, &block)
+          full_args = [BZR_BIN]
+          full_args += args
+          ret = shellout(full_args.map { |e| shell_quote e.to_s }.join(' '), &block)
+          if $? && $?.exitstatus != 0
+            raise ScmCommandAborted, "bzr exited with non-zero status: #{$?.exitstatus}"
+          end
+          ret
+        end
+        private :scm_cmd
       end
     end
   end