retag: update mp3 tags

README.md

@@ -35,6 +35,7 @@ will create the symbolic link for each script in the \<path> directory.
 
 - [a2mp3](a2mp3) converts wav audio files to mp3 format.
 - [axaudio](axaudio) gets an information and audio stream from Axia Livewire network.
+- [retag](retag) writes id3 tags based on file path.
 - [radio](radio) plays the internet radio stations from a list stored in the file.
 - [vls](vls) runs vlc-ncurses with increased speed.
 

retag

@@ -0,0 +1,101 @@
+#!/bin/bash
+
+#Создан:  Ср 19 фев 2020 21:59:29
+#Изменён: Чт 20 фев 2020 00:45:38
+
+# Requirements:
+# - mid3v2 from media-libs/mutagen
+
+rstc="\033[00m"
+green="\033[1;32m"
+yellow="\033[1;33m"
+blue="\033[1;34m"
+
+REGEXP=".*/(.*)/(.*) \[(.*)\]/(.*)/(.*?) - (.*)/(.*?) - (.*)\.([[:alnum:]]{3})$"
+
+usage() {
+	echo "$(basename "$0") - simple mp3 tagger."
+	echo
+	echo "USAGE: $(basename "$0") [file] [options]"
+	echo
+	echo "The filenames should be in the format \"[...]/GENRE/ARTIST [COUNTRY]/TYPE/YEAR - ALBUM/TRACK - TITLE.FORMAT\""
+	echo
+	echo "Command line arguments:"
+	echo "    -h --help    - show this help"
+	echo "    -v --verbose - show updating tags"
+	echo "    -d --dry     - run without tags saving"
+}
+
+tag_file() {
+	file="$1"
+
+	[[ $file =~ $REGEXP ]]
+
+	printf "${blue}%s[%02d/%02d] ${yellow}Tagging the file «%s»${rstc}\n" "$INDENT" "$((++CURRENT_TRACK))" "$TRACKS" "$file"
+
+	GENRE="${BASH_REMATCH[1]}"
+	ARTIST="${BASH_REMATCH[2]}"
+	YEAR="${BASH_REMATCH[5]}"
+	ALBUM="${BASH_REMATCH[6]}"
+	TRACK="${BASH_REMATCH[7]}"
+	TITLE="${BASH_REMATCH[8]}"
+
+	if [ -n "$VERBOSE" ]; then
+		printf "%s\t  Genre: %s | Artist: %s |" "$INDENT" "$GENRE" "$ARTIST"
+		printf "Year:  %s | Album:  %s |" "$YEAR"  "$ALBUM"
+		printf "Track: %s | Title:  %s\n" "$TRACK" "$TITLE"
+	fi
+
+	if [ -z "$DRY_RUN" ]; then
+		mid3v2  --genre="$GENRE" --artist="$ARTIST" --year="$YEAR"   \
+			--album="$ALBUM" --track="$TRACK"   --song="$TITLE"  \
+		"$file"
+	fi
+}
+
+tag_directory() {
+	TRACKS=$(find "$1" -name '*.mp3' -print | wc -l)
+
+	printf "${green}> %s/${rstc}\n" "$1"
+	INDENT="  "
+
+
+	find "$1" -name '*.mp3' | while read -r file; do tag_file "$file"; done
+}
+
+tag() {
+	if [[ -d "$1" ]]; then
+		tag_directory "$1"
+	elif [[ "$1" =~ \.mp3 ]]; then
+		tag_file "$1"
+	fi
+}
+
+if (( $# == 0 )); then
+	usage
+	exit 1
+fi
+
+QUEUE=()
+
+while [[ $# -gt 0 ]]; do
+	key="$1"
+
+	case $key in
+	    -h|--help) usage; exit 0; shift;;
+	    -v|--verbose) VERBOSE=1; shift;;
+	    -d|--dry) DRY_RUN=1; VERBOSE=1; shift;;
+	    *) QUEUE+=("$1"); shift;;
+	esac
+done
+
+set -- "${QUEUE[@]}"
+
+INDENT=
+TRACKS="$#"
+CURRENT_TRACK=0
+
+for item in "${QUEUE[@]}"; do
+	tag "$(realpath "$item")"
+done
+