Re: [9front] ftpfs no-cache patch

[Ethan Grammatikidis <eekee57@fastmail.fm>]

On Tue, Feb 13, 2018, at 8:09 PM, mycroftiv@sphericalharmony.com wrote:
> Summary: ftpfs caching behavior seems mostly undesirable.  This patch
> eliminates caching by default and allows the previous behavior to be
> restored with a -h flag.
> 
> Details: the ftpfs manpage currently states "Ftpfs caches files and
> directories.  A directory will fall from the cache after 5 quiescent
> minutes or if the local user changes the directory by writing or
> removing a file." - but I believe this is not accurate.  According to
> my testing, there is no time-based directory cache expiry.  The
> ftpfs.h file does define an ISOLD macro that would fit the manpage,
> but a grep reveals that the ISOLD macro is never used anywhere in the
> current code.  The cache can be cleared by using the special
> .flush.ftpfs directory entry.

I support this. I've occasionally used ftpfs to transfer files from or to (or browse) my Android devices. Even in that light usage, having to manually flush was a big pain. I wrote a script, called it "fff", so I could flush it with just that one word, but but it was still a big pain. In the end, I configured rc-httpd to serve a big chunk of my homedir to my local network only, and used the web browser on my phone.