A script to scan multiple music sources with mp3check, moving only error-free albums/artists to the library.

musicmerger.sh

#!/usr/bin/env bash

ROOT=/vault/media
PREFIX=music-from-
TARGET=$ROOT/music
COLLECTIONS=(main)

main() {
    for collection in "${COLLECTIONS[@]}"; do
        echo -e "\n Processing $collection/"
        cd "$ROOT/$PREFIX$collection" || { err "Missing collection '$collection'"; continue; }

        for artist in *; do
            cd "$ROOT/$PREFIX$collection" || { err "Collection disappeared!"; return 1; }

            if [[ ! -d "$artist" ]]; then
                skip top "$artist" "not a directory"
            elif [[ -d "$TARGET/$collection" ]]; then
                run_partial "$collection" "$artist"
            else
                run_full "$collection" "$artist"
            fi
            sleep 0.5
        done
    done
}

run_full() {
    local collection="$1" artist="$2"

    if is_unsupported "$artist"; then
        warn "top" "$artist" "found unsupported files"
    elif fails_check "$artist"; then
        warn "top" "$artist" "failed mp3check"
    else
        mv "$artist" "$TARGET/" || { err "Failed moving files"; return 1; }
        pass "top" "$artist" "Checks passed! All albums relocated"
        return
    fi

    info "Falling back to partial mode..."
    run_partial "$collection" "$artist"
}

run_partial(){
    local collection="$1" artist="$2" album

    cd "$ROOT/$PREFIX$collection/$artist" || { err "cd to artist dir failed"; return 1; }
    (( 0 < $(find . -mindepth 1 -maxdepth 1 -type d | wc -l) )) || \
        { skip nest "" "No albums!"; return 1; }

    for album in *; do
        if is_unsupported "$album"; then
            err nest "$album" "unsupported files"
        elif fails_check "$album"; then
            err nest "$album" "files have errors"
        elif [[ -d "$TARGET/$artist/$album" ]]; then
            err nest "$album" "album exists already!"
            # rsync -aAXH "$album" "$TARGET/$artist" || echo "Failed moving files"
        else
            [[ -d "$TARGET/$artist" ]] || mkdir -p "$TARGET/$artist"

            pass nest "$album"
            mv "$album" "$TARGET/$artist/" || { err "Failed moving files"; continue; }
        fi
    done
}

fails_check() {
    ! mp3check -BEerGoqsS -m1 -A m4a,mp3,Mp3,MP3 "$1"
}

is_unsupported() {
    local badfiles

    badfiles="$(find "$1" -type f \
        ! -iname '*.mp3' ! -iname '*.m4a' \
        ! -iname '*.jpg' ! -iname '*.jpeg' ! -iname '*.bmp')"

    [[ $badfiles != "" ]]
}

colourise() {
    local args=() type="$1" title="" pos="$2" title="$3" tree=""; shift

    case $type in
        info) esc=36; lbl="       "; pos="info"; title="$*" ;;
        pass) esc=32; lbl="SUCCESS";;
        skip) esc=33; lbl="SKIPPED";;
        warn) esc=33; lbl="WARNING";;
        err) esc=31; lbl="[ERROR]";;
    esac

    case "$pos" in
        top) tree="├─"; shift 2 ;;
        info) tree="│  │ "; shift 2 ;;
        nest) tree="│  ├─"; shift 2 ;;
    esac

    if [[ $type == "info" ]]; then
        printf " \e[%dm[%s]\e[0m  %s\e[%dm└ %s\e[0m\n" $esc "$lbl" "$tree" $esc "$title"
    else
        printf " \e[%dm[%s]\e[0m  %s %-95s \e[%dm%s\e[0m\n" $esc "$lbl" "$tree" "$title/" $esc "$*"
    fi
}
info() { colourise "info" "$*"; }
pass() { colourise "pass" "$@"; }
skip() { colourise "skip" "$@"; }
warn() { colourise "warn" "$@"; }
err() { colourise "err" "$@"; }

main