We currently only support getpass, which does not echo at all, for
git_terminal_prompt on Windows. The Windows console is perfectly
capable of doing this, so let's make it so.

This implementation tries to reuse the /dev/tty-code as much as

The big reason that this becomes a bit hairy is that Ctrl+C needs
to be handled correctly, so we don't leak the console state to a
non-echoing setting when a user aborts.

Windows makes this bit a little bit tricky, in that we need to
implement SIGINT for fgetc. However, I suspect that this is a good
thing to do in the first place.

An earlier iteration was also breifly discussed here:

The series can also be found here, only with an extra patch that
makes the (interactive) testing a bit easier:


Erik Faye-Lund (5):
  mingw: make fgetc raise SIGINT if apropriate
  compat/terminal: factor out echo-disabling
  compat/terminal: separate input and output handles
  mingw: reuse tty-version of git_terminal_prompt
  mingw: get rid of getpass implementation

 compat/mingw.c    |  91 +++++++++++++++++++++++++++-----------
 compat/mingw.h    |   8 +++-
 compat/terminal.c | 129 ++++++++++++++++++++++++++++++++++++++++--------------
 3 files changed, 169 insertions(+), 59 deletions(-)


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