chore: move fix-artist-separators.sh into scripts/

scripts/fix-artist-separators.sh

@@ -0,0 +1,123 @@
+#!/usr/bin/env bash
+# fix-artist-separators.sh
+# Splits artist tags on "/" into ";" — with hardcoded exceptions for artist
+# names that legitimately contain "/" (Au/Ra, HUNTR/X).
+#
+# Requires: ffprobe, ffmpeg, python3
+#
+# Usage:
+#   bash fix-artist-separators.sh [music_dir]           -- dry run (no changes)
+#   bash fix-artist-separators.sh [music_dir] --apply   -- actually modify files
+
+MUSIC_DIR="${1:-/opt/navidrome/music}"
+APPLY=false
+[[ "${2:-}" == "--apply" ]] && APPLY=true
+
+if [[ ! -d "$MUSIC_DIR" ]]; then
+  echo "Error: directory not found: $MUSIC_DIR"
+  exit 1
+fi
+
+if $APPLY; then
+  echo "🔧  APPLY mode — files will be modified"
+else
+  echo "🔍  DRY RUN — no files will be changed (add --apply to apply)"
+fi
+echo "📂  Scanning: $MUSIC_DIR"
+echo "🚫  Exceptions: Au/Ra, HUNTR/X"
+echo ""
+
+count_found=0
+count_ok=0
+count_fail=0
+
+# Splits artist string on "/" while preserving exception names.
+# Example: "HUNTR/X/EJAE/AUDREY NUNA" -> "HUNTR/X;EJAE;AUDREY NUNA"
+#          "-Prey/zecki"               -> "-Prey;zecki"
+#          "Au/Ra"                     -> "Au/Ra"  (exception, unchanged)
+SPLIT_PY='
+import sys
+
+EXCEPTIONS = ["Au/Ra", "HUNTR/X"]
+exc_lookup = [(exc, exc.lower(), exc.split("/")) for exc in EXCEPTIONS]
+
+def smart_split(artist):
+    parts = artist.split("/")
+    result = []
+    i = 0
+    while i < len(parts):
+        matched = False
+        for exc, exc_lower, exc_parts in exc_lookup:
+            n = len(exc_parts)
+            candidate = parts[i:i+n]
+            if len(candidate) == n and "/".join(candidate).lower() == exc_lower:
+                result.append(exc)
+                i += n
+                matched = True
+                break
+        if not matched:
+            p = parts[i].strip()
+            if p:
+                result.append(p)
+            i += 1
+    return ";".join(result)
+
+artist = sys.stdin.read().strip()
+if "/" not in artist:
+    print(artist)
+else:
+    print(smart_split(artist))
+'
+
+get_artist() {
+  ffprobe -v quiet -print_format json -show_format "$1" 2>/dev/null \
+    | python3 -c "
+import sys, json
+data = json.load(sys.stdin)
+tags = data.get('format', {}).get('tags', {})
+print(next((v for k, v in tags.items() if k.lower() == 'artist'), ''))
+" 2>/dev/null
+}
+
+while IFS= read -r -d '' file; do
+  artist=$(get_artist "$file") || continue
+  [[ "$artist" != *"/"* ]] && continue
+
+  new_artist=$(echo "$artist" | python3 -c "$SPLIT_PY" 2>/dev/null) || continue
+  [[ "$artist" == "$new_artist" ]] && continue
+
+  count_found=$((count_found + 1))
+  echo "📄  $file"
+  echo "    Before : $artist"
+  echo "    After  : $new_artist"
+
+  if $APPLY; then
+    ext="${file##*.}"
+    tmp="${file%.*}.artist_fix_tmp.$ext"
+    if ffmpeg -i "$file" -map_metadata 0 -metadata "artist=$new_artist" \
+              -c copy "$tmp" -y -loglevel quiet 2>/dev/null; then
+      mv "$tmp" "$file"
+      echo "    ✅ Updated"
+      count_ok=$((count_ok + 1))
+    else
+      rm -f "$tmp"
+      echo "    ❌ Failed"
+      count_fail=$((count_fail + 1))
+    fi
+  fi
+  echo ""
+done < <(find "$MUSIC_DIR" -type f \( \
+  -name "*.mp3" -o -name "*.flac" -o \
+  -name "*.m4a" -o -name "*.ogg"  -o \
+  -name "*.opus" \) -print0)
+
+echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
+echo "Files to change: $count_found"
+if $APPLY; then
+  echo "Updated: $count_ok  |  Failed: $count_fail"
+  [[ $count_ok -gt 0 ]] && echo "" && echo "💡 Trigger a Navidrome rescan to pick up the changes."
+else
+  echo ""
+  echo "Run with --apply to fix them:"
+  echo "  bash fix-artist-separators.sh \"$MUSIC_DIR\" --apply"
+fi