test-commandserver: allow check() to make connection in different way The next patch will add connector for 'unix' mode server.

test-commandserver: remove unused repopath argument from check() Instead of repopath, check() will receive connect() function as argument. It will allow to connect to server of different mode.

cmdserver: make server streams switchable In 'unix' mode, server instance will be created per connection, and fin/fout are set to socket files.

cmdserver: switch service objects by mode server class will be changed to accept fin/fout pair instead of mode string so that it can interact with socket files.

cmdserver: wrap 'pipe' mode server by service object This is the stub for new mode that will listen for connections on unix domain socket. Though --daemon option is not banned in 'pipe' mode, it is useless because the detached 'pipe' mode server exits immediately due to null stdin. Should it abort if --daemon is specified with --cmdserver pipe or --stdio?

histedit: miscellaneous style cleanups Fix some mis-wrapped lines, re-wrap some lines to be more compact, remove superfluous parens.

histedit: update docstring on histeditstate.read() The docstring showed the previous class-less heritage of read(). Now that it's classy, update the docstring.

histedit: remove now-superfluous repo argument from processreplacement Spotted by Olle on the mailing list during review.

histedit: move locks into state Allow action functions to control the locks. This is necessary for an implementation of x/exec or similar.

histedit: read state from histeditstate Read the state in histeditstate. This allows us to correctly update internal variables when necessary without having to recreate a new state. When we read a state in _histedit state while we will already have state passed from histedit(), we can read the state in place and don't have to merge two histeditstates.