Le mercredi 02 décembre 2015 à 00:47 -0800, Mohammed El-Beltagy a écrit
:
> I don't think your package directory is good place for file caching.
> It would be better to put your caches in the system's temporary
> directory, for Mac (also check echo $TMPDIR) and Linux that is at
> "/tmp" for windows it is at "C:\Users\<username>\AppData\Local\Temp"
> (check ECHO %Temp%)
I don't know for Windows, but for Linux /tmp is usually cleaned on
reboot or even every few hours. A possible place would be
$XDG_CACHE_HOME/$YOUR_PACKAGE, with ~/.cache/$YOUR_PACKAGE as a
default.
But storing data inside the Julia package dir sounds like a logical
solution. Maybe we could have an explicit policy about this, and
standardize on a subdirectory name ? Please file an issue on GitHub to
discuss this unless some developers chime in.
Regards
> On Tuesday, December 1, 2015 at 8:18:27 PM UTC+2, Penn Taylor wrote:
> > I'm working on a package that downloads and caches large datasets.
> > The user accesses information in the datasets via the package, but
> > likely has no interest in otherwise having direct access to the raw
> > files. In this early stage, my package uses Base.download to grab
> > the files, and then stores them in Pkg.dir("MyPackageName")/cache.
> > This works great, but I have some concerns about the strategy that
> > I'd like input/advice on.
> >
> > 1. Downloading
> > Base.download includes this warning in its documentation: "For
> > production use or situations in which more options are needed,
> > please use a package that provides the desired functionality
> > instead."
> >
> > I don't need more options, but the "production use" part leads me
> > to believe I shouldn't rely on Base.download inside a package. Is
> > there a particular package that most people tend to use for
> > fetching remote uris from within another package? Or is
> > Base.download generally "good enough" for use in my situation?
> >
> >
> > 2. Caching
> > I haven't found information on whether package directories are
> > guaranteed to be user-writable, so don't know whether my caching
> > location is likely to be problematic. Is
> > Pkg.dir("MyPackageName")/cache generally a good place for this kind
> > of file caching, or is there a different location or pattern that
> > is preferable for a package?
> >
> > Thanks,
> > Penn Taylor
> >
