typing: add type hints to most mercurial/pycompat.py functions
The `rapply` methods are left out because it's not `rapply(f, xs: _T0) -> _T0`
as I first thought- it's used somewhere to walk a collection and convert between
bytes and str.
Also, the `open()` call is partially untyped because I'm not sure what its
purpose is at this point- both the name and mode can be either bytes or str as
it is currently constituted. It might make sense to assert that the file is
being opened in binary mode (like `namedtempfile()`) and cast the result to
`BinaryIO`, but that shouldn't be smuggled in with these other changes. The
return is currently typed as `Any` because something suddenly got smarter and a
few uses in util.py (like readfile()) suddenly think it returns `IO[str]`
instead of `IO[bytes]` (BinaryIO), and it flags the type mismatch there.
#!/usr/bin/env python3
#
# An example FastCGI script for use with flup, edit as necessary
# Path to repo or hgweb config to serve (see 'hg help hgweb')
config = b"/path/to/repo/or/config"
# Uncomment and adjust if Mercurial is not installed system-wide
# (consult "installed modules" path from 'hg debuginstall'):
# import sys; sys.path.insert(0, "/path/to/python/lib")
# Uncomment to send python tracebacks to the browser if an error occurs:
# import cgitb; cgitb.enable()
from mercurial import demandimport
demandimport.enable()
from mercurial.hgweb import hgweb
from flup.server.fcgi import WSGIServer
application = hgweb(config)
WSGIServer(application).run()