hgweb: remove a couple of superfluous spaces in rss style

py3: add tests in check-code to load modules from util.py The conditionalize imports are added in util.py and now we import modules from there. So adding tests so that someone in future can use that.

py3: conditionalize SocketServer import The SocketServer is renamed to socketserver in python 3

py3: conditionalize xmlrpclib import The xmlrpclib library is renamed to xmlrpc.client in python 3

py3: conditionalize the urlparse import The urlparse library is renamed to urllib.parse in python 3

py3: update tests/test-check-py3-compat.t The lower part of the test runs with python 3 and hence remain unchanged.

chg: send SIGPIPE to server immediately when pager exits (issue5278) If the user press 'q' to leave the 'less' pager, it is expected to end the hg process immediately. We currently rely on SIGPIPE for this behavior. But SIGPIPE won't arrive if we don't write anything (like doing heavy computation, reading from network etc). If that happens, the user will feel that the hg process just hangs. The patch address the issue by adding a SIGCHLD signal handler and sends SIGPIPE to the server as soon as the pager exits. This is also an issue with hg's pager implementation.

chgserver: do not ignore SIGPIPE if pager is used We rely on SIGPIPE to exit when the pager exits. And Python ignores SIGPIPE by default. Explicitly set SIGPIPE handler to SIG_DFL (terminate) just like pager.py.

debug: make debug{revlog,index,data} --dir not just a flag The directory argument (for tree manifests) should belong to to the --dir argument. I had mistakenly made --dir a flag. One effect of this was that I had meant for "-m" to be optional, but instead it changed the behavior of --dir, so with "hg debugdata -m --dir dir1 0", the -m took over and the "dir1" got treated as a revision in the root manifest log.

debugdata: disallow trailing option with -c/-m Before this change, "hg debugdata -c 0 foo" was allowed.