[systemd] Add gnome wallpaper infra

bin/.bin/gnome-changepaper

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+#!/bin/sh
+# This Script downloads National Geographic Photo of the day, and sets it as desktop background (gnome, unity)
+# Copyright (C) 2012 Saman Barghi - All Rights Reserved
+# Permission to copy, modify, and distribute is granted under GPLv3
+# Last Revised 22 May 2019
+#######################
+
+# For feh, we need display set properly
+export DISPLAY=:0.0
+export XAUTHORITY=/home/powellc/.Xauthority
+
+if [ -n "$1" ]; then
+  SOURCE=$1
+else
+  SOURCE='bing'
+fi
+
+# Choices: astrobin,natgeo,nasa,unsplash,bing
+BASEDIR="$HOME/var/media/backgrounds/$SOURCE"
+SEARX_BASEDIR="$HOME/var/media/backgrounds/bing"
+
+# Get daily NatGeo POTD
+#python3 ~/.bin/get_natgeo_potd.py
+#python3 ~/.bin/get_astrobin_potd.py
+#python3 ~/.bin/get_unsplash_potd.py
+~/.asdf/installs/python/3.11.4/bin/python ~/.bin/get_bing_potd.py
+
+date=$(date '+%Y-%m-%d')
+
+#set the current image as wallpaper
+echo "Setting desktop background"
+gsettings set org.gnome.desktop.background picture-uri $BASEDIR/$date.jpg
+gsettings set org.gnome.desktop.background picture-uri-dark $BASEDIR/$date.jpg
+
+#link slim background to new image
+#SLIM_BG_FILE=/usr/share/slim/themes/default/background.jpg
+#echo "Setting Slim background image"
+#rm $SLIM_BG_FILE
+#cp $BASEDIR/$date.jpg $SLIM_BG_FILE
+
+#SEARX_BG_FILE=/usr/local/src/searx/searx/static/themes/oscar/img/bg.jpg
+#echo "Setting Searx background image"
+#scp $BASEDIR/$date.jpg search.local:$SEARX_BG_FILE
+
+# Then grab our APOD image and store it for now
+#Change directory to where the script resides.
+#BASEDIR="$HOME/var/inbox/apod_photos"
+#cd $BASEDIR
+########################
+#
+## Get the APoD image from NASA
+#img="$(curl https://api.nasa.gov/planetary/apod\?api_key=AdfgdnmmInYgpDMEq3ShMLKjJ7DZ7jyUcgLHWdgw | jq .hdurl | tr -d \")"
+#
+##check to see if there is any wallpaper to download
+#if [ -n "$img" ]
+#then
+#	img_file=`echo $img | cut -d/ -f 7 | tr -d \"`
+#	curl $img > $img_file
+#	#set the current image as wallpaper
+#	#hsetroot -sane $BASEDIR/$img_file
+#	##link slim background to new image
+#	#rm /usr/share/slim/themes/default/background.jpg
+#	#ln -s $BASEDIR/$img_file /usr/share/slim/themes/default/background.jpg
+#else
+#	echo "No Wallpaper today"
+#fi

systemd/.config/systemd/user/gnome-changepaper.service

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+[Unit]
+Description=Change wallpaper
+
+[Service]
+ExecStart=/home/powellc/.bin/gnome-changepaper
+
+[Install]
+WantedBy=default.target

systemd/.config/systemd/user/gnome-changepaper.timer

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+[Unit]
+Description=Change wallpaper
+
+[Timer]
+OnCalendar=hourly
+Unit=gnome-changepaper.service
+
+[Install]
+WantedBy=default.target