364 lines
8.7 KiB
Bash
364 lines
8.7 KiB
Bash
#!/bin/bash
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# ==============================================================================================
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# ================================= Music Artwork Fetcher ======================================
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# ==============================================================================================
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#
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# SAFE DESIGN
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# - READS from Lidarr only
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# - NEVER modifies tags
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# - NEVER renames media
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# - NEVER writes to Lidarr
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# - ONLY writes missing artwork files
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#
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# ARTWORK
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#
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# Album Folder:
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# cover.jpg
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# cdart.png
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# back.jpg
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#
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# Artist Folder:
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# folder.jpg
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# fanart.jpg
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# logo.png
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# banner.jpg
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#
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# SOURCES
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#
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# Album Covers:
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# fanart.tv
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# iTunes fallback
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#
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# Artist Art:
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# fanart.tv
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# Deezer fallback
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# Last.fm fallback
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# ================================= CONFIG =====================================================
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LIDARR_URL="http://localhost:8686"
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LIDARR_API_KEY="b2977e71ef074bc0a0529d9fcce3b2dc"
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FANART_API_KEY="Yd7147a43b692df0b364b94dc47efb81"
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LASTFM_API_KEY="be6dc169c33ae263e690c30d18b7491d"
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LOG="/tmp/artfetch.log"
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MIN_SIZE=10000
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MAX_PARALLEL=4
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RETRIES=2
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SLEEP_BETWEEN=0.2
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# ================================= FLAGS ======================================================
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DRY_RUN=0
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if [[ "$1" == "--dry-run" ]]; then
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DRY_RUN=1
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echo "Running in DRY-RUN mode"
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fi
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# ================================= LOGGING ====================================================
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log() {
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echo "$(date '+%F %T') | $1" >> "$LOG"
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}
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# ================================= HELPERS ====================================================
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curl_json() {
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curl -s \
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--connect-timeout 5 \
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--max-time 20 \
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"$1"
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}
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job_count() {
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jobs -rp | wc -l
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}
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wait_for_slot() {
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while (( $(job_count) >= MAX_PARALLEL )); do
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sleep 0.2
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done
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}
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# ================================= DOWNLOAD ===================================================
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download_if_valid() {
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local url="$1"
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local dest="$2"
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[[ -z "$url" || "$url" == "null" ]] && return 1
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# never overwrite existing
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[[ -f "$dest" ]] && return 0
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if [[ "$DRY_RUN" -eq 1 ]]; then
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log "[DRY] $dest"
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return 0
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fi
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for ((i=0; i<=RETRIES; i++)); do
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tmp="${dest}.tmp"
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curl -s \
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--connect-timeout 5 \
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--max-time 20 \
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-L \
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-o "$tmp" \
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"$url"
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size=$(stat -c%s "$tmp" 2>/dev/null)
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if [[ "$size" -gt "$MIN_SIZE" ]]; then
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mv "$tmp" "$dest"
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log "[OK] $dest"
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return 0
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fi
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rm -f "$tmp"
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sleep 1
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done
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log "[FAIL] $dest"
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return 1
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}
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# ================================= DEEZER =====================================================
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deezer_artist_image() {
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local artist="$1"
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query=$(printf "%s" "$artist" | sed 's/ /+/g')
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curl_json \
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"https://api.deezer.com/search/artist?q=$query" |
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jq -r '.data[0].picture_xl // empty'
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}
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# ================================= LASTFM =====================================================
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lastfm_artist_image() {
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local artist="$1"
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encoded=$(printf "%s" "$artist" | sed 's/ /%20/g')
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curl_json \
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"https://ws.audioscrobbler.com/2.0/?method=artist.getinfo&artist=$encoded&api_key=$LASTFM_API_KEY&format=json" |
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jq -r '.artist.image[-1]["#text"] // empty'
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}
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# ==============================================================================================
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# ====================================== ALBUMS =================================================
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# ==============================================================================================
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echo "===== PROCESSING ALBUMS ====="
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albums=$(curl_json \
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"$LIDARR_URL/api/v1/album?apikey=$LIDARR_API_KEY")
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[[ -z "$albums" || "$albums" == "null" ]] && {
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echo "ERROR: Lidarr album API failed"
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exit 1
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}
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total_albums=$(echo "$albums" | jq '. | length')
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album_count=0
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echo "$albums" | jq -c '.[]?' | while read -r album; do
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((album_count++))
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path=$(echo "$album" | jq -r '.path')
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mbid=$(echo "$album" | jq -r '.foreignAlbumId')
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artist=$(echo "$album" | jq -r '.artist.artistName')
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name=$(echo "$album" | jq -r '.title')
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[[ ! -d "$path" ]] && continue
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printf '[ALBUM %s/%s] %s - %s\n' \
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"$album_count" "$total_albums" "$artist" "$name"
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# skip complete albums
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if [[ -f "$path/cover.jpg" &&
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-f "$path/cdart.png" &&
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-f "$path/back.jpg" ]]; then
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echo " -> complete"
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continue
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fi
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wait_for_slot
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(
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JSON=""
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if [[ -n "$mbid" && "$mbid" != "null" ]]; then
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JSON=$(curl_json \
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"http://webservice.fanart.tv/v3/music/albums/$mbid?api_key=$FANART_API_KEY")
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sleep "$SLEEP_BETWEEN"
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fi
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# ================= COVER =================
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if [[ ! -f "$path/cover.jpg" ]]; then
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IMG=$(echo "$JSON" | jq -r '.[].albumcover[0].url // empty')
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if ! download_if_valid "$IMG" "$path/cover.jpg"; then
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query=$(printf "%s %s" "$artist" "$name" | sed 's/ /+/g')
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itunes=$(curl_json \
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"https://itunes.apple.com/search?term=$query&entity=album&limit=1" |
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jq -r '.results[0].artworkUrl100 // empty' |
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sed 's/100x100/600x600/')
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download_if_valid "$itunes" "$path/cover.jpg"
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fi
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fi
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# ================= CDART =================
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if [[ ! -f "$path/cdart.png" ]]; then
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IMG=$(echo "$JSON" | jq -r '.[].cdart[0].url // empty')
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download_if_valid "$IMG" "$path/cdart.png"
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fi
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# ================= BACK =================
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if [[ ! -f "$path/back.jpg" ]]; then
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IMG=$(echo "$JSON" | jq -r '.[].albumback[0].url // empty')
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download_if_valid "$IMG" "$path/back.jpg"
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fi
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) &
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done
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wait
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# ==============================================================================================
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# ====================================== ARTISTS ================================================
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# ==============================================================================================
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echo
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echo "===== PROCESSING ARTISTS ====="
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artists=$(curl_json \
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"$LIDARR_URL/api/v1/artist?apikey=$LIDARR_API_KEY")
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[[ -z "$artists" || "$artists" == "null" ]] && {
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echo "ERROR: Lidarr artist API failed"
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exit 1
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}
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total_artists=$(echo "$artists" | jq '. | length')
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artist_count=0
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echo "$artists" | jq -c '.[]?' | while read -r artist; do
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((artist_count++))
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path=$(echo "$artist" | jq -r '.path')
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mbid=$(echo "$artist" | jq -r '.foreignArtistId')
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name=$(echo "$artist" | jq -r '.artistName')
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[[ ! -d "$path" ]] && continue
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[[ -z "$mbid" || "$mbid" == "null" ]] && continue
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printf '[ARTIST %s/%s] %s\n' \
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"$artist_count" "$total_artists" "$name"
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# skip complete artists
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if [[ -f "$path/folder.jpg" &&
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-f "$path/fanart.jpg" &&
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-f "$path/logo.png" &&
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-f "$path/banner.jpg" ]]; then
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echo " -> complete"
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continue
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fi
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wait_for_slot
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(
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JSON=$(curl_json \
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"http://webservice.fanart.tv/v3/music/$mbid?api_key=$FANART_API_KEY")
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sleep "$SLEEP_BETWEEN"
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# ================= folder.jpg =================
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if [[ ! -f "$path/folder.jpg" ]]; then
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IMG=$(echo "$JSON" | jq -r '.artistthumb[0].url // empty')
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if ! download_if_valid "$IMG" "$path/folder.jpg"; then
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IMG=$(deezer_artist_image "$name")
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if ! download_if_valid "$IMG" "$path/folder.jpg"; then
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IMG=$(lastfm_artist_image "$name")
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download_if_valid "$IMG" "$path/folder.jpg"
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fi
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fi
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fi
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# ================= fanart.jpg =================
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if [[ ! -f "$path/fanart.jpg" ]]; then
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IMG=$(echo "$JSON" | jq -r '.artistbackground[0].url // empty')
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if ! download_if_valid "$IMG" "$path/fanart.jpg"; then
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IMG=$(deezer_artist_image "$name")
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download_if_valid "$IMG" "$path/fanart.jpg"
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fi
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fi
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# ================= logo.png =================
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if [[ ! -f "$path/logo.png" ]]; then
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IMG=$(echo "$JSON" | jq -r '.hdmusiclogo[0].url // empty')
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download_if_valid "$IMG" "$path/logo.png"
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fi
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# ================= banner.jpg =================
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if [[ ! -f "$path/banner.jpg" ]]; then
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IMG=$(echo "$JSON" | jq -r '.musicbanner[0].url // empty')
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download_if_valid "$IMG" "$path/banner.jpg"
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fi
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) &
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done
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wait
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echo
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echo "===== COMPLETE ====="
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log "===== COMPLETE =====" |