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rsync on windows has been broken by the upgrade to a newer version of
cygwin. `rsync user@host:file file` opens the ssh connection, but hangs
up with a protocol error. Apparently it doesn't get even the protocol
version message from the server.
Problem doesn't seem to affect the bundled ssh, just rsync. --[[Joey]]
> Update: Apparently there are two ssh's! msysgit bundles one (did it used
> to in PATH?) and git-annex bundles one from cygwin. msysgit's ends up
> in Git/bin and git-annex's in Git/cmd.
>
> Seems that cygwin's rsync cannot use git's ssh for whatever reason.
>
> So the workaround is to
> delete Git/bin/ssh.exe and leave Git/cmd/ssh.exe. Then rsync works.
> However, this may screw up git's use of ssh or other stuff.
>
> Particularly, cygwin's ssh doesn't honor HOME anymore, instead using
> the getpwent home, which doesn't exist.
>
> Also, see
> [[webapp_fails_to_connect_to_ssh_repository___40__windows__41__]]
> which is the inverse of this bug perhaps, or at least seems related.
>
> Using 2 ssh's that try to use config from different places seems like
> a losing propisition. Need to find an rsync that works with git's ssh.
> --[[Joey]]
>
> > Update: The git bin/ directory is only in PATH when inside "git bash".
> > This bug only seems to affect using git-annex that way. The git bash
> > PATH has `bin` before `cmd`.
> >
> > Also, git seems to work ok using the newer ssh from cygwin.
> > However, that ssh tries to write to a .ssh/known_hosts
> > in a cygwin location and so doesn't remember hosts.
> >
> > What a mess. You can install any version of Linux and get rsync, ssh,
> > git that all integrate and work together. Or you can use Windows and
> > enjoy the pain(TM) --[[Joey]]
>>> Possible fixes:
>>>
>>> * Roll the bundled ssh and rsync back to the older versions.
>>>
>>> **This works**. And, seems that the older version of ssh from cygwin
>>> looks at HOME, rather than getpwent home which the newer
>>> cygwin ssh does.
>>>
>>> * Roll the bundled rsync back, drop ssh. Rely on msysgit's bundled ssh,
>>> copying it into cmd so it's in PATH. Check: Does this combo work?
>>>
>>> **This works**! rsync 3.0.9 works ok with msysgit's bundled ssh.
>>> rsync 3.1.1 is the one that needs a newer ssh. **[[done]]**
>>>
>>> Note that this means we're using an old version of rsync
>>> from cygwin with libraries from a newer cygwin. That might prove
>>> fragile as cygwin is upgraded.
>>>
>>> * Hope that msysgit gets updated to include a newer version of ssh
>>> which works with the new rsync.
>>>
>>> (Seems reasonable as a long-term plan, assuming that the
>>> new rsync's problem with ssh is that it needs a new one, and not some
>>> special cygwin thing.)
>>>
>>> * Get rsync from somewhere else, perhaps msysgit. (Maybe also get ssh
>>> from msysgit?)
>>> * Keep the new rsync from cygwin, and build ssh from source,
>>> patching it to use HOME in preference to getpwent home.
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