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create gnome wallpaper with different random images for each screen
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| #!/usr/bin/env bash | |
| # usage: curl -sLH 'Cache-Control: no-cache, no-store' https://gist.github.com/grenade/b79e520c7f4de6decf613648f16f4589/raw/random-wallpaper.sh | bash | |
| app_name=random-wallpaper | |
| temp_dir=/tmp/${app_name} | |
| state_dir=${HOME}/.local/state/${app_name} | |
| backgrounds_dir=${HOME}/.local/share/backgrounds/${app_name} | |
| lite_archive_url=https://unsplash.com/data/lite/latest | |
| lite_archive_path=${state_dir}/unsplash-research-dataset-lite-latest.zip | |
| photos_tsv_archive_path=photos.tsv000 | |
| photos_tsv_path=${HOME}/.local/state/${app_name}/photos.tsv | |
| photos_tsv_dir_path=$(dirname ${photos_tsv_path}) | |
| declare -a screens=(3840x2160 3840x2160 1920x1080) | |
| if [ -d ${temp_dir} ]; then | |
| echo "temp folder: ${temp_dir}, observed" | |
| elif mkdir -p ${temp_dir}; then | |
| echo "temp folder: ${temp_dir}, created" | |
| else | |
| echo "failed to create temp folder: ${temp_dir}" | |
| exit 1 | |
| fi | |
| if [ -d ${state_dir} ]; then | |
| echo "state folder: ${state_dir}, observed" | |
| elif mkdir -p ${state_dir}; then | |
| echo "state folder: ${state_dir}, created" | |
| else | |
| echo "failed to create state folder: ${state_dir}" | |
| exit 1 | |
| fi | |
| if [ -d ${backgrounds_dir} ]; then | |
| echo "backgrounds folder: ${backgrounds_dir}, observed" | |
| elif mkdir -p ${backgrounds_dir}; then | |
| echo "backgrounds folder: ${backgrounds_dir}, created" | |
| else | |
| echo "failed to create backgrounds folder: ${backgrounds_dir}" | |
| exit 1 | |
| fi | |
| if [ -f ${lite_archive_path} ]; then | |
| echo "archive: ${lite_archive_path}, observed" | |
| else | |
| if curl \ | |
| --silent \ | |
| --location \ | |
| --output ${lite_archive_path} \ | |
| --url ${lite_archive_url}; then | |
| echo "archive: ${lite_archive_url} downloaded to ${lite_archive_path}" | |
| else | |
| echo "failed to download archive: ${lite_archive_url} to ${lite_archive_path}" | |
| exit 2 | |
| fi | |
| fi | |
| if [ -f ${photos_tsv_path} ]; then | |
| echo "database: ${photos_tsv_path}, observed" | |
| else | |
| if unzip ${lite_archive_path} ${photos_tsv_archive_path} -d ${photos_tsv_dir_path} && mv ${photos_tsv_dir_path}/${photos_tsv_archive_path} ${photos_tsv_path}; then | |
| echo "${lite_archive_path}/${photos_tsv_archive_path} extracted to ${photos_tsv_path}" | |
| else | |
| echo "failed to extract database: ${lite_archive_path}/${photos_tsv_archive_path} to ${photos_tsv_path}" | |
| exit 3 | |
| fi | |
| fi | |
| photos_tsv_lines=$(wc -l ${photos_tsv_path} | cut -d ' ' -f 1) | |
| declare -a photos | |
| wallpaper_slug=combined | |
| screen_index=0 | |
| for screen in ${screens[@]}; do | |
| screen_number=$((screen_index + 1)) | |
| screen_width=$(echo ${screen} | cut -d 'x' -f 1) | |
| screen_height=$(echo ${screen} | cut -d 'x' -f 2) | |
| screen_aspect_ratio=$(awk "BEGIN { rounded = sprintf(\"%.2f\", ${screen_width}/${screen_height}); print rounded }") | |
| echo "- screen ${screen_number}: ${screen_width} × ${screen_height} (${screen_aspect_ratio})" | |
| qualifier_found=false | |
| while [ "${qualifier_found}" = "false" ]; do | |
| random_line_number=$(shuf -i 2-${photos_tsv_lines} -n 1) | |
| random_line=$(sed "${random_line_number}q;d" ${photos_tsv_path}) | |
| # read all tsv values, including empty values | |
| readarray -d $'\t' -t candidate <<< ${random_line} | |
| photo_slug=${candidate[0]} | |
| photo_source=${candidate[1]} | |
| photo_url=${candidate[2]} | |
| photo_submitted=${candidate[3]} | |
| case ${candidate[4]} in | |
| f) | |
| photo_featured=true | |
| ;; | |
| *) | |
| photo_featured=false | |
| ;; | |
| esac | |
| photo_width=${candidate[5]} | |
| photo_height=${candidate[6]} | |
| photo_aspect_ratio=$(printf "%.2f" ${candidate[7]}) | |
| photo_description=${candidate[8]} | |
| photo_camera_make=${candidate[12]} | |
| photo_camera_model=${candidate[13]} | |
| photo_iso=${candidate[14]} | |
| photo_aperture=${candidate[15]} | |
| photo_focal_length=${candidate[16]} | |
| photo_exposure_time=${candidate[17]} | |
| photo_location_name=${candidate[18]} | |
| photo_location_latitude=${candidate[19]} | |
| photo_location_longitude=${candidate[20]} | |
| photo_location_country=${candidate[21]} | |
| photo_location_city=${candidate[22]} | |
| photo_stats_views=${candidate[23]} | |
| photo_stats_downloads=${candidate[24]} | |
| photo_ai_description=${candidate[25]} | |
| photo_ai_landmark_name=${candidate[26]} | |
| photo_ai_landmark_latitude=${candidate[27]} | |
| photo_ai_landmark_longitude=${candidate[28]} | |
| photo_ai_landmark_confidence=${candidate[29]} | |
| photo_blur_hash=${candidate[30]} | |
| # qualify if photo and screen have the same aspect ratio | |
| if [ ${screen_aspect_ratio} = ${photo_aspect_ratio} ]; then | |
| # qualify if photo is landscape oriented and screen is landscape oriented | |
| if ((screen_width > screen_height)) && ((photo_width > photo_height)); then | |
| qualifier_found=true | |
| # qualify if photo is portrait oriented and screen is portrait oriented | |
| elif ((screen_width < screen_height)) && ((photo_width < photo_height)); then | |
| qualifier_found=true | |
| fi | |
| if [ ${qualifier_found} = true ]; then | |
| # disqualify if photo width is less than half the width of the screen | |
| min_width=$((screen_width / 2)) | |
| if ((photo_width < min_width)); then | |
| qualifier_found=false | |
| fi | |
| # disqualify if photo is not popular | |
| if ((photo_stats_downloads < 5000)); then | |
| qualifier_found=false | |
| fi | |
| # disqualify if photo is already included on a previous screen | |
| photo_resize_path=${temp_dir}/${photo_slug}-resize-${screen}.jpg | |
| photo_screen_path=${temp_dir}/${photo_slug}-${screen}.jpg | |
| if [[ " ${photos[*]} " =~ [[:space:]]${photo_screen_path}[[:space:]] ]]; then | |
| qualifier_found=false | |
| fi | |
| # disqualify if photo contains a person | |
| if [[ ${photo_ai_description} =~ person ]] || [[ ${photo_ai_description} =~ man ]]; then | |
| qualifier_found=false | |
| fi | |
| fi | |
| fi | |
| if [ ${qualifier_found} = true ]; then | |
| metadata_path=${state_dir}/${photo_slug}.yml | |
| echo "---" | tee ${metadata_path} | |
| echo "slug: ${photo_slug}" | tee -a ${metadata_path} | |
| echo "source: ${photo_source}" | tee -a ${metadata_path} | |
| echo "url: ${photo_url}" | tee -a ${metadata_path} | |
| echo "submitted: ${photo_submitted}" | tee -a ${metadata_path} | |
| echo "featured: ${photo_featured}" | tee -a ${metadata_path} | |
| echo "width: ${photo_width}" | tee -a ${metadata_path} | |
| echo "height: ${photo_height}" | tee -a ${metadata_path} | |
| echo "aspect-ratio: ${photo_aspect_ratio}" | tee -a ${metadata_path} | |
| echo "description: ${photo_description}" | tee -a ${metadata_path} | |
| echo "exif:" | tee -a ${metadata_path} | |
| echo " camera:" | tee -a ${metadata_path} | |
| echo " make: ${photo_camera_make}" | tee -a ${metadata_path} | |
| echo " model: ${photo_camera_model}" | tee -a ${metadata_path} | |
| echo " iso: ${photo_iso}" | tee -a ${metadata_path} | |
| echo " aperture: ${photo_aperture}" | tee -a ${metadata_path} | |
| echo " focal-length: ${photo_focal_length}" | tee -a ${metadata_path} | |
| echo " exposure: ${photo_exposure_time}" | tee -a ${metadata_path} | |
| echo "location:" | tee -a ${metadata_path} | |
| echo " name: ${photo_location_name}" | tee -a ${metadata_path} | |
| echo " latitude: ${photo_location_latitude}" | tee -a ${metadata_path} | |
| echo " longitude: ${photo_location_longitude}" | tee -a ${metadata_path} | |
| echo " country: ${photo_location_country}" | tee -a ${metadata_path} | |
| echo " city: ${photo_location_city}" | tee -a ${metadata_path} | |
| echo "stats:" | tee -a ${metadata_path} | |
| echo " downloads: ${photo_stats_downloads}" | tee -a ${metadata_path} | |
| echo " views: ${photo_stats_views}" | tee -a ${metadata_path} | |
| echo "ai:" | |
| echo " description: ${photo_ai_description}" | tee -a ${metadata_path} | |
| echo " landmark:" | tee -a ${metadata_path} | |
| echo " name: ${photo_ai_landmark_name}" | tee -a ${metadata_path} | |
| echo " latitude: ${photo_ai_landmark_latitude}" | tee -a ${metadata_path} | |
| echo " longitude: ${photo_ai_landmark_longitude}" | tee -a ${metadata_path} | |
| echo " confidence: ${photo_ai_landmark_confidence}" | tee -a ${metadata_path} | |
| echo "hash: ${photo_blur_hash}" | tee -a ${metadata_path} | |
| if [ -n "${photo_location_name}" ]; then | |
| photo_annotation=${photo_location_name} | |
| elif [ -n "${photo_location_country}" ]; then | |
| if [ -n "${photo_location_city}" ]; then | |
| photo_annotation="${photo_location_city}, ${photo_location_country}" | |
| else | |
| photo_annotation=${photo_location_country} | |
| fi | |
| elif [ -n "${photo_ai_landmark_name}" ]; then | |
| photo_annotation=${photo_ai_landmark_name} | |
| #elif [ -n "${photo_description}" ]; then | |
| # photo_annotation=${photo_description} | |
| else | |
| unset photo_annotation | |
| fi | |
| fi | |
| done | |
| wallpaper_slug="${wallpaper_slug}_${photo_slug}" | |
| photo_path=${backgrounds_dir}/${photo_slug}.jpg | |
| photos+=(${photo_screen_path}) | |
| if [ -s ${photo_path} ]; then | |
| echo "${photo_path} found" | |
| elif curl \ | |
| --silent \ | |
| --location \ | |
| --output ${photo_path} \ | |
| --url ${photo_url}; then | |
| echo "${photo_url} downloaded to file://${photo_path}" | |
| else | |
| echo "failed to download ${photo_url} to ${photo_path}" | |
| exit 4 | |
| fi | |
| if [ -n "${photo_annotation}" ]; then | |
| if convert ${photo_path} -resize ${screen}\! ${photo_resize_path}; then | |
| echo "resized file://${photo_path} to file://${photo_resize_path}" | |
| if convert ${photo_resize_path} -gravity SouthWest -fill white -font Hack-Nerd-Font-Regular -pointsize $((screen_height / 72)) -annotate +10+10 "${photo_annotation}" ${photo_screen_path}; then | |
| echo "annotated file://${photo_resize_path} to file://${photo_screen_path}" | |
| else | |
| echo "failed to annotate file://${photo_resize_path} to file://${photo_screen_path}" | |
| exit 5 | |
| fi | |
| else | |
| echo "failed to resize file://${photo_path} to file://${photo_resize_path}" | |
| exit 6 | |
| fi | |
| else | |
| if convert ${photo_path} -resize ${screen}\! ${photo_screen_path}; then | |
| echo "resized file://${photo_path} to file://${photo_screen_path}" | |
| else | |
| echo "failed to resize file://${photo_path} to file://${photo_screen_path}" | |
| exit 6 | |
| fi | |
| fi | |
| screen_index=$((screen_index + 1)) | |
| done | |
| wallpaper_path=${state_dir}/${wallpaper_slug}.jpg | |
| if rm -f ${temp_dir}/combined_*.jpg && convert ${photos[@]} +append ${wallpaper_path}; then | |
| echo "created file://${wallpaper_path}" | |
| rm ${photos[@]} | |
| rm -f ${temp_dir}/*-resize-*.jpg | |
| else | |
| echo "failed to create file://${wallpaper_path}" | |
| exit 7 | |
| fi | |
| gsettings set org.gnome.desktop.background picture-uri ${wallpaper_path} | |
| gsettings set org.gnome.desktop.background picture-uri-dark ${wallpaper_path} | |
| gsettings set org.gnome.desktop.background picture-options 'spanned' |
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