[clisp-list] atomic rename?

[Faré <fa...@gm...>]

(feature request)

rename-file (usefully and conformantly) checks whether a file already
exists at the destination pathname before to rename-file.

However, there seems to be lacking an option to skip such check and
atomically rename(2) a file to another file (though I may have missed
it in the documentation).

This needs not be the same function, although for instance CCL accepts
a :if-exists argument, which is nice.

Such a feature allows for useful atomic filesystem operations. For
instance, xcvb rmx when removing the XCVB module form from a file
creates a new lisp file, then atomically replaces the old one when
it's ready and no earlier. This makes things safer.

[ François-René ÐVB Rideau | Reflection&Cybernethics | http://fare.tunes.org ]
Soccer riots kill at most tens. Intellectuals' ideological riots sometimes
kill millions.-- John McCarthy