sshpeer: move handshake outside of sshpeer
With the handshake now performed before a peer class is instantiated,
we can now instantiate a different peer class depending on the results
of the handshake.
Our test extension had to change to cope with the new API. Because
we now issue the command via raw I/O calls and don't call
_callstream(), we no longer have to register the fake command.
(_callstream() uses the command registration to see what args to
send).
Differential Revision: https://phab.mercurial-scm.org/D2034
syntax: glob
*.elc
*.tmp
*.orig
*.rej
*~
*.mergebackup
*.o
*.so
*.dll
*.exe
*.pyd
*.pyc
*.pyo
*$py.class
*.swp
*.prof
*.zip
\#*\#
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tests/.testtimes*
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tests/*.err
tests/htmlcov
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doc/*.[0-9]
doc/*.[0-9].txt
doc/*.[0-9].gendoc.txt
doc/*.[0-9].{x,ht}ml
MANIFEST
MANIFEST.in
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mercurial/__modulepolicy__.py
mercurial/__version__.py
mercurial/hgpythonlib.h
mercurial.egg-info
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tags
cscope.*
.idea/*
.asv/*
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locale/*/LC_MESSAGES/hg.mo
hgext/__index__.py
rust/target/
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syntax: regexp
^\.pc/
^\.(pydev)?project
# hackable windows distribution additions
^hg-python
^hg.py$