Re: [PATCH v2] Ensure that SSH runs in non-interactive mode

> Fredrik Tolf <fredrik@dolda2000.com> writes:
> 
> > [...] Here's some makeshift documentation:
> > 
> > The string specified in core.sshcommand is first checked if it matches
> > any of the built-in templates, in which case it is expanded (I've added
> > the templates "openssh" and "plink" by default). When used, the string
> > is split into words, each of which is processed as follows:
> > 
> > * If a word is %p, it is replaced by the port number, if specified.
> >   If the port number is not specified, the word is deleted.
> > * If a word is %h, it is replaced by the remote host name.
> > * If a word begins with %P, it is deleted if no port number is
> >   specified. This is to allow for specifying different port number
> >   flags for different SSH implementations. The syntax is a bit ugly,
> >   but I cannot really think of anything that would look better.
> >   If a port number has been specified, the leading %P is simply deleted.
> 
> There is a syntax which would look better, but perhaps it is a bit
> overkill in this situation.  Namely use either shell conditional
> expansion:
> 
>   ${p:+-P $p}
> 
> or syntax used in RPM spec macros
> 
>   %{?p:-P %p}
> 
> (and there is complementing %{!?<var>:<expansion>} in RPM spec macro
> language).