From: Konrad Meyer <konrad@...>
Date: 2007-10-14T08:06:26+09:00
Subject: Re: top 10 last played mp3's

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Quoth Andreas S.:
> Robin Wagenaar wrote:
> > My level of ruby-experience has just slightly passed hello-world, I'm
> > quite new to this programming language; I hope I don't bother all of you
> > too much by posting my low-level question here.
> >=20
> > I would like to make a program that iterates recursively trough my music
> > directory, and selects the top-10 of most recently played tracks.
> >=20
> > I try to use File.atime(path) to check if the current file is accessed
> > recently enough to get into my top-10, but my problem is that I don't
> > know how to (correctly) compare a date to the return value of
> > File.atime.
>=20
> File.atime returns a Time object, you can compare it to another Time=20
> object, for example:
>=20
> if File.atime(path) > (Time.now - 60*60)
>   # file has been accessed in the last hout
> end
>=20
> But you can also solve the whole problem much easier:
>=20
> Dir['/share/music/**/*.mp3', '/share/music/*.mp3'].sort_by{|f|=20
> File.atime}.reverse[0,10]

Or, if it's deeper than two levels:

  require 'find'

  Find.find("/share/music/").sort_by { |f| f.atime }.reverse[0...10]

I'm glad you (the OP) are interested in learning more about ruby.

Regards,
=2D-=20
Konrad Meyer <konrad@tylerc.org> http://konrad.sobertillnoon.com/

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