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95 lines
2.6 KiB
Bash
95 lines
2.6 KiB
Bash
4 years ago
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#!/usr/bin/env bash
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# vim:ts=4:sts=4:sw=4:et
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#
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# Author: Hari Sekhon
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# Date: 2020-07-21 11:36:49 +0100 (Tue, 21 Jul 2020)
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#
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2 years ago
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# https://github.com/HariSekhon/DevOps-Bash-tools
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4 years ago
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#
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# License: see accompanying Hari Sekhon LICENSE file
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#
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# If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
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#
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2 years ago
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# https://www.linkedin.com/in/HariSekhon
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4 years ago
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#
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set -euo pipefail
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[ -n "${DEBUG:-}" ] && set -x
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srcdir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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1 year ago
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# shellcheck disable=SC1090,SC1091
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4 years ago
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. "$srcdir/lib/mp3.sh"
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# shellcheck disable=SC2034,SC2154
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4 years ago
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usage_description="
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Adds / Modifies track name metadata to match MP3 filenames for all MP3s in the given directories to improve display appearance when playing
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The track name metadata is taken to be the basename of the MP3 file without the extension
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4 years ago
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$mp3_usage_behaviour_msg
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4 years ago
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"
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# used by usage() in lib/utils.sh
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# shellcheck disable=SC2034
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usage_args="[<dir1> <dir2> ...]"
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help_usage "$@"
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check_bin id3v2
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shift || :
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# used to pipe file list inline which is more comp sci 101 correct but that could create a race condition on second
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# evaluation of file list changing after confirmation prompt, and RAM is cheap, so better to use a static list of files
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# stored in ram and operate on that since it'll never be that huge anyway
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4 years ago
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mp3_files="$(get_mp3_files "${@:-$PWD}")"
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4 years ago
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echo "List of MP3 files => track names to be set:"
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echo
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shopt -s nocasematch
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mp3_regex='([^/]+).mp3$'
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get_track_name(){
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local mp3="$1"
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4 years ago
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local artist
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4 years ago
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#track_name="$mp3"
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#track_name="${track_name##*/}"
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#track_name="${track_name%.mp3}"
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#track_name="${track_name%.MP3}"
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# case insensitive matching without subshelling
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if [[ "$mp3" =~ $mp3_regex ]]; then
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track_name="${BASH_REMATCH[1]}"
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else
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die "failed to regex match filename '$mp3' to generate track name"
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fi
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4 years ago
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artist="$(id3v2 -l "$mp3" |
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grep '[[:space:]]Artist:[[:space:]]' | sed 's/.*[[:space:]]Artist:[[:space:]]*//; s/[[:space:]]*$//'
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)"
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track_name="${track_name#$artist}"
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track_name="${track_name#[[:space:]]*-[[:space:]]*}"
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echo "$track_name"
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4 years ago
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}
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while read -r mp3; do
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track_name="$(get_track_name "$mp3")"
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echo "'$mp3' => '$track_name'"
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done <<< "$mp3_files"
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echo
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read -r -p "Are you happy to set the track name metadata on all of the above mp3 files? (y/N) " answer
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4 years ago
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check_yes "$answer"
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4 years ago
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echo
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while read -r mp3; do
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track_name="$(get_track_name "$mp3")"
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echo "setting track name metadata on '$mp3' to '$track_name'"
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id3v2 --song "$track_name" "$mp3"
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done <<< "$mp3_files"
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