\renameouput? \renameinput?

[Graham Percival]

What does \renameinput do?  I was hoping to use it to rename the 
output, but it doesn't work.  I have a file (foo.ly), which I want to 
output to bar.pdf .

This is part of lilypond interactive mode, so I can't easily just 
rename the output with the shell.  Details about this will come very 
soon after I fix this issue.

Cheers,
- Graham

---- foo.ly
\version "2.7.20"
\renameinput "bar.ly"
{ c'4 }
----

GNU LilyPond 2.7.26
Processing `foo.ly'
Parsing...
Renaming input to: `bar.ly'
Interpreting music... [1]
Preprocessing graphical objects...
Calculating line breaks... [2]
Calculating page breaks...
Layout output to `foo.ps'...
Converting to `foo.pdf'...