getwallpaper [MAC]

#!/bin/bash

# Syntax:
#
# getwallpaper [subreddit] [new/rising/hour/day/week/month/year/all]
#
# By default getwallpaper will fetch images that are hot from r/wallpapers
# If the first option is used but not the second then
# an image from r/[subreddit] sorted after hot, will be fetched.
#
# Example usage:
#
# getwallpaper art new
#
# This will get newly posted images from r/art
# Otherwise:
#
# getwallpaper art hour
#
# Will get top voted images from r/art in the latest hour

## change this to change the download folder
location=~/Pictures/RWallpapers/

## change this to change the location of the logfile (disabled by default)
#logfile=~/tmp/log

## change this to change location of dump file
dump=~/tmp/dump

stamp=$(date +%F%t%R )
#echo Starting script getwallpapers at $stamp >> $logfile

## choose one of these lines 
if [ $# -eq 1 ]; then
  ImGur=$(curl -Gs "http://www.reddit.com/r/$1")
elif [ $# -eq 2 ]; then
  if [ $2 = "new" -o $2 = "rising" ]; then
    ImGur=$(curl -Gs "http://www.reddit.com/r/$1/$2")
  else
    ImGur=$(curl -Gs --data "sort=top&t=$2" "http://www.reddit.com/r/$1/top/")
  fi
else
  ImGur=$(curl -Gs  "http://www.reddit.com/r/wallpapers")
fi

ImGur1=$(echo -e $ImGur | egrep -o "http://imgur.com/[0-9a-zA-Z]*(/[0-9a-zA-Z])*" | egrep -m 1 ^.*$)
ImGur2=$(echo -e $ImGur | egrep -io "http://([0-9a-gi-z]|h[-0-9a-su-z_\./]|ht[-0-9a-su-z_\./]|htt[-0-9a-oq-z_\./]|[-_\./0-9])*(jpg|jpeg)" | sed '/^.*thumb.*$/ d' | cut -c 8- | egrep -m 1 "^.*$")

#un-/comment to dump raw scraped data
#echo $ImGur > $dump

if [ -n "$ImGur1" -o -n "$ImGur2" ]; then
	if [ -z $ImGur2 ]; then
		DlLink=$(curl -Gs $ImGur1 | egrep -o "<img.*>" | sed '/<img.*thumb.*>/ d' | egrep -o "i.imgur\.com.*\.[a-zA-Z]{1,4}" | egrep -m 1 ^.*$)
	else 
		DlLink=$ImGur2
	fi
#else
	#echo failed to get an imgur link from the original reddit feed >> $logfile
fi

# check if DlLink is not empty before applying new background
if [ -n "$DlLink" ]; then
	
	name=$( echo $DlLink | sed 's/\//_/g' )
	if [ ! -e ~/Pictures/RWallpapers/$name ]; then
		#echo -e Downloading from: "\n"http://$DlLink >> $logfile
		curl "http://$DlLink" -o $location$name
    	        echo -e \'tell application \"Finder\" to set desktop picture to file \"$location$name\" as POSIX file\' | xargs osascript -e
		#echo -e using: "\nfile://$location$name" >> $logfile
	else 
		#echo -e Nothing new "\n"Link to picture: "\n"http://$DlLink >> $logfile
		#echo -e Still using: "\nfile://$location$name" >>  $logfile
		echo -e \'tell application \"Finder\" to set desktop picture to file \"$location$name\" as POSIX file\' | xargs osascript -e
	fi	
#else 
	#echo failed to read link. DlLink is empty >> $logfile
fi

#echo -------------------------------------------------------------------------------- >> $logfile