2014-05-12

Auto change wallpaper on linux from reddit

#!/usr/bin/env ruby

Author : Emad Elsaid (https://github.com/blazeeboy)

autochanging wallpaper from reddit images you have to point the script to your existing file you set it as a wallpaper and it will override it with a new image every 5 minutes.

this script works on centos 6 with GNOME/GTK2 interface

require 'open-uri' # we'll need to download image with that
require 'ruby_reddit_api' # gem install ruby_reddit_api

class will be initialized with a subreddit to monitor and a destination file to write the downloaded image to it

class RedditWallpaper

  def initialize( subreddit, destination_file = 'bg.jpg' )
    @subreddit = subreddit
    @path = destination_file
    @downloaded = []
    @not_downloaded = []
  end

download the url to destination

  def download( url )
    image = open( "#{url}.jpg" ).read
    File.write  @path, image
  end

update wallpaper and update images cache

  def update

make me a reddit client please

    r = Reddit::Api.new

update earth

    posts = r.browse @subreddit
    posts.each do |r|
      @not_downloaded << r.url if r.url.include?('imgur') and !@downloaded.include?(r.url)
    end

    image = @not_downloaded.shift
    download image

  end

end

i'll get images from earthporn they have lots of great images of nature places and then i'll update it every 5 minutes

downloader = RedditWallpaper.new 'earthPorn', '/home/eelsaid/Pictures/bg.jpg'
loop do
  downloader.update
  sleep 5*60 # wait for 5 minutes
end