shell-music-refactor-library/rename_music_files.sh

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#!/bin/bash
# 2024-06-07 C.Greenwood
# Rename all files in a music library based on metadata.
# Uses the format "[Track]. [Title].mp3"
# TBD Remove all the stuff from AddTrackToTitle.
# 2022-08-30 Hyperling
# Put the files' Track in their Title so that Toyota Entune plays the songs in the right frikken order!!!
# At least with the 2019 RAV4, it acknowledges the Track#, but still sorts albums alphabetically for whatever reason.
#
# Return Codes:
# 0) Success!
# 1) Parameter passed
# 2) Pre-requisite tool not installed
# 3) Failure to find music metadata
# 4) Failure to create fixed file
# 5) Fixed file is missing
# 6) Unknown operator
#
## Variables ##
PROG="`basename $0`"
DIR="`dirname $0`"
EXT=".mp3"
ADD="(Fixed)"
TIME="`which time`"
TRUE="T"
FALSE="F"
UNDO="$FALSE"
## Functions ##
function usage {
cat <<- EOF
Usage:
$PROG [-h] [-u]
Parameters:
-h : Help, display the usage and exit succesfully.
Place this file at the root of your music destined for a flash drive and run it without any parameters.
It will dive through all folders and convert your MP3's to have the Track# in the Title.
The process changes the filenames to contain (Fixed) so you know it's touched the file.
Please be sure you only run this on a copy of your music, not the main source!
This tool has a few pre-requisites you should make sure you have installed:
- exiftool
- ffmpeg
Thanks for using $PROG!
EOF
exit $1
}
function error {
num_chars=$(( 7 + ${#1} ))
echo ""
printf '*%.0s' $(seq 1 $num_chars)
echo -e "\nERROR: $1"
printf '*%.0s' $(seq 1 $num_chars)
echo -e "\n"
usage $2
}
## Validations ##
# Check for parameters.
while getopts ":h" opt; do
case "$opt" in
h) usage 0
;;
*) error "Operator $OPTARG not recognized." 6
;;
esac
done
# Ensure critical tools are available.
if [[ ! `which exiftool` ]]; then
error "exiftool not found" 2
fi
## Main ##
# Loop through all files in and lower than the current directory.
count=0
total="`find $DIR -name "*${EXT}" -printf . | wc -c`"
avg_time=0
total_time=0
time_count=0
est_guess=0
time find $DIR -name "*${EXT}" | while read file; do
count=$(( count + 1 ))
echo -e "\n$file"
# Retrieve and clean the Track#
track=""
# Get raw value
track="`exiftool -Track "$file"`"
# Filter the header
track="${track//Track /}"
track="${track// : /}"
# Remove disk designations
track="${track%%/*}"
# Remove any whitespace before/after
track="`echo $track`"
# Add a leading 0 to single digits.
[[ ${#track} == 1 ]] && track="0$track"
echo "Track=$track"
# Retrieve and clean the Title
title=""
title="`exiftool -Title "$file"`"
title="${title//Title /}"
title="${title// : /}"
title="`echo $title`"
echo "Title=$title"
# Create the new file with the correct filename.
new_filename="$track. $title$EXT"
if [[ ! -z "$track" && ! -z "$title" ]]; then
echo "Creating '`basename "$new_filename"`'."
mv -v "$file" "$new_filename"
elif [[ -z "$track" && ! -z "$title" ]]; then
echo "No Track# found, leaving Title alone."
continue
else
error "File does not have Track or Title metadata. Are you sure you're running this on music?" 3
fi
# Confirm the new file exists and remove the old file if so
if [[ -e "$new_filename" ]]; then
echo "Success!"
else
error "$new_filename was not created successfully." 5
fi
done
echo -e "\nProcess has completed. Enjoy having your songs in album-order!"
exit 0