largefiles: preserve the exit status of the rebase command

largefiles: preserve the exit status of the log command

largefiles: exit from remove with 1 on warnings This maintains the exit codes documented in commands.py.

largefiles: preserve exit code from outgoing command (issue3611) This maintains the exit codes documented in commands.py.

store: let _auxencode() return the list of path segments so we can spare us splitting the path again in _hybridencode()

store: eliminate unneded last assignment to n in _auxencode() The check for period or space at the end of the string is the last one, the local variable n is thus not used anymore.

store: unindent most of the contents of the for loop in _auxencode() by refactoring for i, n in enumerate(res): if n: <main code block> to for i, n in enumerate(res): if not n: continue <main code block> (no functional change)

store: optimize _auxencode() by assigning to the list elements of the path

store: optimze _auxencode() a bit by grouping the reserved names by length This reduces perffncacheencode wall time on Windows 7 x64 for my netbeans clone here from 4.3 to 4.0 (7% faster).

store: explain "aux.foo" versus "foo.aux" in doc of _auxencode()

store: add 'com0' and 'lpt0' doctest cases for _auxencode() These are already covered by test-hybridencode.py, but they are so noteworthy that I think they deserve being shown right in that doctest.

wireproto: fix check-code.py breakage introduced by 6d97dd630d79

record: fix display of non-ASCII names in chunk selection b013baa3898e fixed display of non-ASCII names in file-selecting prompt, but display in chunk selection remained broken. The reason is that using '%r' in string formatting results in calling `repr` on file names, thus mangling non-ASCII ones.

tests: enable even more Windows server tests

test-obsolete-checkheads: fix on windows

sshserver: avoid a multi-dot attribute lookup in a hot loop This improves stream_out performance by about 3%.

store: reduce string concatenation when joining This improves stream_out performance by a couple of percent.

scmutil: use the new faster path split Combined with a few other patches in this series, this contributes to improving stream_out performance by 10%.

util: implement a faster os.path.split for posix systems This is not yet used.

scmutil: make join cheaper Combined with a few followup patches, this contributes to improving stream_out performance by 10%.

wireproto: don't format a debug string inside a hot loop This improves stream_out performance by about 5%.

wireproto: bypass filechunkiter for small files when streaming Merely creating and using a generator has a measurable impact, particularly since the common case for stream_out is generators that yield just once. Avoiding generators improves stream_out performance by about 7%.

wireproto: don't audit local paths during stream_out Auditing at this stage is both pointless (paths are already trusted by the local repo) and expensive. Skipping the audits improves stream_out performance by about 15%.

scmutil: delegate mustaudit property to the real opener This will be used by an upcoming patch.