NASA-background

esa · 2015-05-23 13:13:59

Heyas

I'm using this in my AwesomeWM, and thought you guys might like this too
It consists of 2 scripts, one to change the background according to existing images, and the main script which searches the RSS of NASA's Image of the Day gallery.
The scripts are located in: $HOME/.config/awesome/scripts.
Since the nasaBackground.sh is executed upon graphical login, i wanted to have it look a bit more 'professional', so i've used TUI -> https://bbs.archlinux.org/viewtopic.php?id=197719

Preview: https://sea.fedorapeople.org/img/awesom … .01.28.jpg
AwesomeConfig: https://github.com/sri-arjuna/awesome-config

The fallbackscript, to change among already downloaded IOTD's or otherwise existing images to be used as wallpaper.
changebg.sh

#!/bin/bash
#
#	Choose among default backgrounds
#	or stored recent NASA backgrounds,
#	or type in a custom background path.
#
#	Author: 		Simon A. Erat (sea) <erat.simon AT gmail.com>
#	Created (y.m.d):	2012.10.24
#	Changed:		2015.03.08
#	License:		GPL v3
	script_version=0.4
#
#	Variables
#
	# Requires TUI
	
	defaultbg=$HOME/.config/awesome/img
	nasabg=$HOME/.backgrounds
	distrobg=/usr/share/backgrounds
	opt="--bg-fill"
	opt="--bg-scale"
	oPWD="$PWD"
	
	str_kind="Select kind of background:"
	str_bg="Select the actual background image:"
#
#	Outout
#	
	printf "\r\t\r" #;echo
	sleep 0.04
	tui-header "sea's Awesome WM" "Change BG"
	tui-title "$str_kind"
	style=menu
	while [ ! "$style" = Back ] 
	do	style=$(tui-select Back NASA-Random NASA Defaults Distro Custom)
		[ ! Back = "$style" ] && tui-title "$style"
		case "$style" in
		Back)		break		;;
		NASA-Random)	path=$nasabg
				cd "$path"
				max=$(ls -l|wc -l)
				num=$(rnd $max)
				files=( * )
				img="${files[$num]}"
				tui-echo "Selected random:" "$img"
				cd "$oPWD"
				;;
		NASA)		path=$nasabg	;;
		Distro)		path=$distrobg	;;
		Defaults)	path=$defaultbg ;;
		Custom) 	path=$(input "Please type the absolute path of the images:") ;;
		esac
		
		case "$style" in
		NASA-Random)	feh $opt "$path/$img"
				tui-echo
				;;
		*)		tui-echo "$str_bg"
				tui-echo "Images from path:" "$path"
				pics=$(cd "$path";ls;cd "$oPWD")
				img=todo
				while [ ! Back = "$img" ]
				do	img=$(tui-select Back $pics)
					[ $img = Back ] && break
					feh $opt "$path/$img"
					tui-status $? "Set background to: $img"
					tui-echo
					tui-title "$style"
					tui-echo "$str_bg" "or go Back"
				done
				;;
		esac
		tui-title "$str_kind"
		
		#tui-echo "$str_kind" "or go Back to exit."
	done

The core script to download the latest IOTD:
nasaBackground.sh

#!/bin/bash
 
# grabs the nasa image of the day by RSS feed and updates the gnome
# background. add this to your cron jobs to have this happen daily.  this is,
# obviously, a hack, that is likely to break at the slightest change of NASA's
# RSS implementation. yay standards!

#EDITED FOR feh
#EDITED FOR tui

#
#	Variables
#
	img_url=""
	img_name=""
	rss=""
	RSS1="http://www.nasa.gov/rss/lg_image_of_the_day.rss"
	RSS2="http://www.nasa.gov/rss/dyn/image_of_the_day.rss"
	target=""
	FOLDER="$HOME/.backgrounds"
#
#	Display & Action
#

	# TITLE
	sleep 0.5
	tui-title "NASA - Image of the Day"
	tui-echo " " "This script is not related with NASA"
	
	RET=-1
	for R in "$RSS1" "$RSS2";do
		# Get Raw data
		tui-status -r 2 "Retrieving raw data ($R)..."
		rss=$(wget -q -O - "$R")
		[ ! -z "$rss" ]
		if tui-status $? "Retrieved raw data"
		then	# It has data, but can it find a recent image?
			img_url=$(echo $rss | grep -o '<enclosure [^>]*>' | grep -o 'http://[^\"]*')
			[ ! -z "$img_url" ] && \
				RET=0 && \
				break
		fi
	done
	
	# Prepare download
	#img_url=$(echo $rss | grep -o '<enclosure [^>]*>' | grep -o 'http://[^\"]*')
	
	# change existing bg if no url was found
	if [ -z "$img_url" ] || [ 0 -ne $RET ]
	then	tui-status 1 "No URL could be identified, changing background to random image"
		tui-wait 5s "Changing to random wallpaper"
		sh $(dirname $0)/changebg.sh << EOF
2
1
EOF
		tui-status $? "Changed wallpaper"
		sleep 3 ; exit 1
	else	[ -d "$FOLDER" ] || mkdir -p "$FOLDER"
	
		img_url=$(echo $img_url|awk '{print $1}')
		tui-status $? "Found URL:" "$img_url"
	
		
		img_name=$(echo "$img_url" | grep -o [^/]*\.\w*$ )
		target="$(date +'%F')_${img_name/\?*/}"
		target="${target:0:(-3)}jpg"
		tui-status $? "Selected image:" "$img_name"
		
		# Download the image
		cd "$FOLDER"
		if [ ! -f "$img_name" ] && [ ! -f "$target" ]
		then	# Requires to become downloaded
			tui-download "$img_url"
			
			# Rename to list in date order
			mv "$img_name" "$target"
			tui-status $? "Renamed to" "$target"
			
			# Converting to fixed size jpeg to save storage space
			tui-printf "Converting $img_name..." "$TUI_WORK"
			convert "$target" -resize $(xrandr | awk '/\*/ {print $1}') "$target"
			tui-status $? "Converted ${target##*/}"
		fi
		target="${target:0:(-3)}jpg"
		
		# Set it as bg
		feh --bg-scale "$target"
		tui-status $? "Changed background to $target"
		cd "$OLDPWD"
		tui-wait 10s
		exit 0
	fi
	sleep 1

Hope you like it, have fun

Arch Linux

#1 2015-05-23 13:13:59

NASA-background

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