masato9000 · June 18, 2017 20:44 · masato9000 · Jun 18, 2017
diff --git a/eacsh.sh b/eacsh.sh
 #!/bin/sh

 _bsdl='
 Copyright (c) 2017, [email protected]
 All rights reserved.
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are met:
 1. Redistributions of source code must retain the above copyright notice, this
   list of conditions and the following disclaimer.
 2. Redistributions in binary form must reproduce the above copyright notice,
   this list of conditions and the following disclaimer in the documentation
   and/or other materials provided with the distribution.
 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
 ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 '

 cleanup() {
    # If this was run due to sigint, don't run again at exit
    [ ${_clean}X = 1X ] && return

    if [ -n "$workdir" ]; then
        if [ -z "$noclean" ]; then
            echo '\n'cleaning up...
            rm -rf "$workdir"
            echo ...done
        else
            echo \$noclean variable set
            echo not deleting temporary files in $workdir
        fi
    fi
    _clean=1
 }

 check_depends() {
    # Check for needed commands
    command -v readcd >/dev/null || {
        echo Unable to locate readcd
        echo Make sure you have cdrtools installed.
        exit 1
    }

    command -v cdda2wav >/dev/null || {
        echo Unable to locate cdda2wav
        echo Make sure you have cdrtools installed.
        exit 1
    }

    command -v flac >/dev/null || {
        echo Unable to locate flac
        echo Make sure you have the flac encoder installed
        exit 1
    }
 }

 write_config() {
    cat<<_EOT >"$conf_file"
 # Some eacsh variables (and even functions) can be redefined.
 # Note that it's possible to break this script with bad values here.
 # If that happens, just remove the config file and re-run eacsh

 # base working directory (temp)
 #riptemp="$HOME/EACsh/tmp"

 # base directory for final results
 #ripdest="$HOME/EACsh"

 # default paraopts (passed to paranoia library; see man 1 cdda2wav)
 #para_opts='paraopts=proof'

 # cddb level (whether to do cddb lookups; see man 1 cdda2wav)
 #cddb_level=0

 # set "no" to not be prompted to hand-edit cddb info
 #cddb_edit=

 # optionsl cddb options (option=<value>; see man 1 cdda2wav)
 #cddb_opts=

 # text editor to use for editing cddb
 #txt_editor=/usr/bin/vi

 # File format (path and filename relative to $ripdest)
 # Ignored if cddb lookups are disabled
 # Special values understood by this script:
 #    <ARTIST>, <ALBUM, <TRACK>, <TITLE>, <DATE>, <GENRE>, <CDDB>
 #file_spec="<ARTIST> - <ALBUM>/<TRACK> <TITLE>"
 #file_spec_va="Various - <ALBUM>/<TRACK> <ARTIST> - <TITLE>"

 _EOT

    echo Default config file written to $conf_file
    exit 255
 }

 get_rawtoc() {
    readcd -fulltoc 2>&1 | \
        awk '/^TOC\ len/{flag=1; next}
             /^Lead\ out/{flag=0}
             flag'
 }

 # TOC - block of 11-byte entries
 #  1 session ID
 #  2 "bflags" -hints on this field found in cdda2wav file: toc.c)
 #  -   - first nibble (b 7-4) information about subchannels
 #  -   -    - for audio/data track entries, this is <= 3
 #  -   - second nibble (b 3-0) track type is bit 2
 #  -   -    - (bflags&4==0) audio; (blags&4==4) data
 #  4 type of entry
 #  -   - 0x01-0x63 - regular track; start sector in MSF at bytes 9-11
 #  -   - A0 - list session first track (byte 9)
 #  -   - A1 - list session last track (byte 9)
 #  -   - A2 - list session leadout in MSF at bytes 9-11
 #  -   - B0 - describe next session
 #  -   -    - leadin in MSF at bytes 5-7
 #  -   -    - session number at byte 8
 #  -   -    - leadout in MSF at bytes 9-11
 # NOTE: hex TOC dumped by readcd uses real physical frame addresses, but
 # standards name physical sector 150 (2-sec pregap) as 0.
 # All of our tools will need the adjusted value, so always subtract 150.

 parse_rawtoc() {
    while read _01 _02 _03 _04 _05 _06 _07 _08 _09 _10 _11; do
        # Note session leadout; we'll use it if there's a data session
        if [ $_04 = A2 ]; then
            _lout=$(($(to_frames $((0x$_09)) $((0x$_10)) $((0x$_11)))-150))
            continue
        fi

        # Ignore entries with bflags >= 0x3f (usually between sessions)
        [ $((0x$_02)) -gt 63 ] && continue

        # We're not presently interested in any other non-track values
        [ $((0x$_04)) -gt 99 ] && continue

        # Session 1 is all audio, except track1 in cases of mixed mode
        if [ $_01 = 01 ]; then
            # Check track type - data
            if [ $((0x$_02 & 4)) -eq 4 ]; then
                # Mixed mode discs (really yellowbook CD-ROMs) have a
                # single data track followed by audio tracks. OK
                if [ $_04 = 01 ]; then
                    mixedmode=yes
                    # Save start sector of data track
                    datastart=$(($(to_frames $((0x$_09)) $((0x$_10)) $((0x$_11)))-150))
                    continue
                else    # Your CD is weird. This script isn't for you
                    echo ERROR:\\t Data track detected in session 1 \(but not track1\)
                    echo \\tWe\'re not meant to handle this. Exiting...
                    exit 1
                fi
            elif [ $_04 = 01 ]; then
                # detect extra pregap before track 1 (hidden track)
                [ $(to_frames $((0x$_09)) $((0x$_10)) $((0x$_11))) -gt 150 ] &&
                    hidden=yes
            fi

            # Get end of data track for mixed-mode CDs
            if [  $_04 = 02 -a ${mixedmode}X = yesX ]; then
                dataend=$(($(to_frames $((0x$_09)) $((0x$_10)) $((0x$_11)))-150))
            fi
            # Only audio tracks left in session 1. Note the latest
            a_last=$((0x$_04))

        # Multisession E-CD/CD-PLUS/CD-EXTRA
        elif [ $_01 = 02 ]; then
            if [ -z "$a_last" ]; then           # Not an Audio CD
                echo ERROR:\\t No audio tracks detected in session 1
                echo \\tWe\'re not meant to handle this.  Exiting...
                exit 1
            # Mixed mode AND multisession: Wrong but maybe safe to ignore
            elif [ ${mixedmode}X = yesX ]; then
                echo WARNING: Found second session on mixed-mode CD
                echo \\tAssuming standard mixed-mode and ignoring
                echo \\tsubsequent sessions
                break
            # Warn on audio tracks in session 2. (Your CD is weird.)
            elif [ $((0x$_02 & 4)) -eq 0 ]; then
                echo WARNING: Session 2 has audio, but should be one data track
                echo \\tOnly processing audio from session 1 of nonstandard disc
                break
            fi
            multisession=yes
            datastart=$(($(to_frames $((0x$_09)) $((0x$_10)) $((0x$_11)))-150))
            dataend=$_lout
            # Stop processing after one data track (there can be only one!)
            break
        fi
    done<<_EOT
 $toc
 _EOT

    a_first=1
    if [ ${mixedmode}X = yesX ]; then
        a_first=2
        echo Mixed mode CD-ROM detected.
        echo Will attempt to save data track from sectors $datastart to $dataend
    elif [ ${multisession}X = yesX ]; then
        if [ -z "$datastart" -o -z "$dataend" ]; then
            echo WARNING: Multisession CD detected but no data track detected
            echo \\tWill not attempt to rip ECD data track.
            multisession=no
        else
            echo Multisession CD found\; likely an Enhanced-CD
            echo Will attempt to save data track from sectors $datastart to $dataend
        fi
    fi

    echo "Audio tracks available to rip:\t$a_first - $a_last"
 }

 cd_info() {
    # Confirm that we have an actuall hidden track - sometimes cdda2wav
    # doesn't register extra pregap as track0; trying to do anything with
    # that track will fail.
    if [ ${hidden}X = yesX ]; then
        echo checking for hidden track \#0...
        if cdda2wav -J -vtoc -g --no-infofile -out-fd=1 2>/dev/null | \
                grep ^T00 >/dev/null ; then
            echo ...track 0 detected and can be extracted
        else
            echo ...no extractable audio found in track \#0
            unset hidden
        fi
    fi

    # we can check for indices/mcn/isrc in one shot and save all the
    # info files but for multisession discs, it doesn't want to do the
    # .inf's correctly unless we specify only the audio tracks.
    if [ ${hidden}X = yesX ]; then
        _trange=0+$a_last
    else
        _trange=$a_first+$a_last
    fi

    echo getting info on selected tracks...

    if [ $cddb_level = "-1" ]; then
        echo Skipping cddb lookup\; audio files will not be auto-tagged
        echo and will be named by CDDB disc ID and track number
    else
        get_cddb
        return
    fi

    while read _line; do
        case $_line in
            CDDB*)
                cddb_id=${_line#*: 0x}
                ;;
        esac
    done<<_EOT
 $(cdda2wav -J -vindices,mcn,isrc -out-fd=1 -t$_trange -B track 2>/dev/null | tee /dev/stderr)
 _EOT
 }

 get_cddb() {
    cdda2wav -J -L $cddb_level $cddb_opts -vindices,mcn,isrc \
        -t$_trange -B track 2>/dev/null

    # Convert CDDB from ISO-8859-1 to native locale before editing
    # Helpful for some terminal-based editors in UTF-8 locales
    if command -v iconv >/dev/null; then
        mv track.cddb track.cddb.LATIN1
        iconv --from-code=ISO-8859-1 track.cddb.LATIN1 >track.cddb
    fi

    if [ ${edit_cddb}X != noX ]; then
        read -p "Do you want to review/edit CDDB info? (y/N): " edit_response
        case $edit_response in
            y* | Y*)
                $txt_editor track.cddb
                ;;
        esac
        read -p "Does this CD feature Various Artists? (y/N): " various
        case $various in
            y* | Y*)
                various=y
                ;;
        esac
    fi

    # read global info into variables.
    _dtitle=  disc_title=  disc_artist=
    disc_id=  disc_year=  disc_genre=  track_names=
    while read _line; do
        # control chars are not legal for tags or paths and having to
        # escape backslashes in commands just plain sucks.
        _line=$(printf -- "%s" "$_line" |
            tr "\"" "'" | tr -d "\\\\[:cntrl:]")
        case $_line in
            DISCID*)
                cddb_id=${_line#*=}
                ;;
            DTITLE*)
                _dtitle=$_dtitle${_line#*=}
                ;;
            DYEAR*)
                disc_year=${_line#*=}
                ;;
            DGENRE*)
                disc_genre=${_line#*=}
                ;;
            TTITLE*)     # Read all TTITLE* lines for later parsing
                track_names=$track_names"
 "$_line
                ;;
        esac
    done<<_EOT
 $(cat track.cddb)
 _EOT
    # In CDDB, the string " / " is a reserved separator for artist/title
    disc_artist=${_dtitle% / *}
    disc_title=${_dtitle#* / }
 }

 destprep() {
    if [ ${cddb_level}X = "-1"X ]; then
        dest_spec="$cddb_id/"
    elif [ ${various}X = yX ]; then
        dest_spec=${file_spec_va%/*}
    else
        dest_spec=${file_spec%/*}
    fi

    dest_dir=$(echo "$ripdest/$dest_spec" |
            sed -e "s|<ARTIST>|$(sanitize "$disc_artist")|g" \
                -e "s|<ALBUM>|$(sanitize "$disc_title")|g" \
                -e "s|<DATE>|$disc_year|g" \
                -e "s|<GENRE>|$(sanitize "$disc_genre")|g" \
                -e "s|<CDDB>|$cddb_id|g")

    [ -d "${dest_dir}" ] || mkdir -p "${dest_dir}"

    if [ "$multisession"X = yesX ]; then
        cp toc.dat "$dest_dir/ECD_multisession_toc.dat"
    elif [ "$mixedmode"X = yesX ]; then
        cp toc.dat "$dest_dir/CD-ROM_mixed-mode_toc.dat"
    else
        cp toc.dat "$dest_dir/"
    fi
 }

 audiorip() {
    if [ $1 -eq 1 -a ${hidden}X = yesX ]; then
        _trange="0+1"
        _basename="track"
    else
        _trange="$1+$1"
        _basename=track_$(printf "%.2d" "$1")
    fi
    printf "\nRipping track $1...\t"
    cdda2wav -t $_trange -vmcn -paranoia $para_opts \
        -no-infofile -B $_basename 2>/dev/null
 }

 audiotags() {
    _tracknum=$1
    _tracknum_str=$2
    printf -- "-T TRACKTOTAL=%s " "$a_last"
    printf -- "-T TRACKNUMBER=%s " "$_tracknum_str"
    printf -- "-T CDDB=%s " "$cddb_id"
    # Without cddb, that's the most we can tag
    [ "$cddb_level" = "-1" ] && return

    printf -- "-T \"ALBUM=%s\" " "$disc_title"
    printf -- "-T \"DATE=%s\" " "$disc_year"
    printf -- "-T \"GENRE=%s\" " "$disc_genre"

    while read _track; do
        if [ "${_track%%=*}"X = "TTITLE$(($_tracknum-1))"X ]; then
            _trackname=${_trackname}${_track#*=}
        fi
    done<<_EOT
 $track_names
 _EOT
    # " / " artists/title separator also used for Various Artists tracks
    if [ ${various}X = yX ]; then
        _trackartist=${_trackname% / *}
        _trackname=${_trackname#* / }
        printf -- "-T \"ARTIST=%s\" " "$_trackartist"
    else
        printf -- "-T \"ARTIST=%s\" " "$disc_artist"
    fi
    printf -- "-T \"TITLE=%s\"" "$_trackname"
 }

 audioencode() {
    _tracknum=$1
    if [ $a_last -lt 10 ]; then
        _tracknum_str=$_tracknum
    else
        _tracknum_str=$(printf "%0.2d" "$_tracknum")
    fi
    _tagopts=$(audiotags $_tracknum $_tracknum_str)
    trackartist=${_tagopts#*\"ARTIST=}
    trackartist=${trackartist%%\"*}
    trackname=${_tagopts#*\"TITLE=}
    trackname=${trackname%%\"*}

    infile=track_$(printf "%0.2d" "$1").wav
    infofile=track_$(printf "%0.2d" "$1").inf

    if [ ${cddb_level}X = "-1"X ]; then
        out_spec="<CDDB>_<TRACK>"
    elif [ ${various}X = yX ]; then
        out_spec=$(echo ${file_spec_va##*/} |
                    sed -e "s|<ARTIST>|<TARTIST>|g")
    else
        out_spec=${file_spec##*/}
    fi

    outfile=$dest_dir/$(echo "$out_spec" |
            sed -e "s|<ARTIST>|$(sanitize "$disc_artist")|g" \
                -e "s|<TARTIST>|$(sanitize "$trackartist")|g" \
                -e "s|<ALBUM>|$(sanitize "$disc_title")|g" \
                -e "s|<TRACK>|$_tracknum_str|g" \
                -e "s|<TITLE>|$(sanitize "$trackname")|g" \
                -e "s|<DATE>|$disc_year|g" \
                -e "s|<GENRE>|$(sanitize "$disc_genre")|g" \
                -e "s|<CDDB>|$cddb_id|g").flac

    if [ $_tracknum -eq 1 -a ${hidden}X = yesX ]; then
        _htname="00 hidden track.flac"
        eval flac -5 -s "$_tagopts" -o "\"$dest_dir/$_htname\"" track_00.wav
        cp track_00.inf "$dest_dir/"
    fi
    eval flac -5 -s "$_tagopts" -o "\"$outfile\"" $infile
    printf -- "===FLAC===\n Finished encoding %s =>\n %s\n\n" "$infile" "$outfile"
    cp $infofile "$dest_dir/"
 }

 datarip() {
    if [ "$multisession"X = yesX -o "$mixedmode"X = yesX ]; then
        echo Saving data track \(Sectors $datastart - $dataend\)
        readcd sectors=$datastart-$dataend f=data.bin
    else
        return 0
    fi

    # Use last $dest_spec to determine copy destination
    if [ "$multisession"X = yesX ]; then
        cp data.bin "$dest_dir/ECD_sess:2_trk:$((a_last+1))_sector:$datastart.bin"
    else
        cp data.bin "$dest_dir/CDROM_sess:1_trk:1_sector:$datastart.bin"
    fi
 }

 sanitize() {
    # Note variables are already free of double-quotes and control chars
    # This value is being used in sed replacement, so & (which we want to
    # allow) needs to become escaped
    printf -- "%s" "$@" | sed -e 's/^\.*//' -e 's/&/\\\&/g' |\
        tr -d "><|*/"
 }

 to_frames() {
    # minutes seconds frames. 75 frames per second, do the math
    _f=$((($1*4500)+($2*75)+$3))
    echo $_f
 }

 set -e
 # Clean up when leaving
 trap cleanup EXIT INT

 check_depends

 conf_file=$HOME/.eacsh.conf

 riptemp="$HOME/EACsh/tmp"
 ripdest="$HOME/EACsh"
 para_opts='paraopts=proof'
 cddb_level=0
 cddb_edit=
 cddb_opts=
 txt_editor=/usr/bin/vi
 file_spec="<ARTIST> - <ALBUM>/<TRACK> <TITLE>"
 file_spec_va="Various - <ALBUM>/<TRACK> <ARTIST> - <TITLE>"

 if [ -f "$conf_file" ]; then
    . "$conf_file"
 else
    echo Config file $conf_file does not exist: creating...
    write_config
 fi

 # Don't bother setting anything up if we can't read a disc
 readcd sectors=0-0 -f=- >/dev/null 2>&1 || {
    echo ERROR:\\tDrive not ready
    echo \\tMake sure the drive contains a readable disc
    exit 1
 }

 # Make sure we can create riptemp and ripdest, or if they already exist
 # that we can write to them.  Writability tests may fail on some systems
 # if directories on read-only filesystems are falsely reported writable
 mkdir -p "$riptemp" || {
    echo ERROR:\\tFailed to create temporary directory $riptemp
    echo \\tMake sure that \$riptemp is set to a writable location
    exit 1
 }
 if [ ! -d "$riptemp" -o ! -w "$riptemp" ]; then
    echo ERROR:\\tTemporary directory is not writable
    echo \\tMake sure \$riptemp is set to a writable location on a
    echo \\tread-write-mounted filesystem.
    exit 1
 fi

 mkdir -p "$ripdest" || {
    echo ERROR:\\tFailed to create output directory $ripdest
    echo \\tMake sure that \$ripdest is set to a writable location
    exit 1
 }
 if [ ! -d "$ripdest" -o ! -w "$ripdest" ]; then
    echo ERROR:\\tOutput directory is not writable
    echo \\tMake sure \$ripdest is set to a writable location on a
    echo \\tread-write-mounted filesystem.
    exit 1
 fi
    
 trklist="$@"
 workdir="$(mktemp -d -p "$riptemp" EACsh.XXXXX)"
 cd "$workdir"

 toc="$(get_rawtoc)"
 parse_rawtoc

 if [ -n "$trklist" ]; then
    do_data=no
    for _trk in $trklist; do
        case $_trk in
            [0-9]|[1-9][0-9])
                [ $_trk -lt 0 -o $_trk -gt $a_last ] && badtrack=yes
                ;;
            data)
                if [ ${multisession}X = yesX -o ${mixedmode}X = yesX]; then
                    do_data=yes
                else
                    echo WARNING: data track specified but no data track found
                    echo \tContinuing without selecting a data track
                fi
                continue
                ;;
            *)
                badtrack=yes
                ;;
        esac
        if [ -n "$badtrack" ]; then
            echo ERROR: Track "$_trk" not in range of audio tracks on disc
            exit 1
        fi
        _last=$_trk
    done
    [ $do_data != yes ] && unset multisession mixedmode
    rip_last=$_last
 else
    trklist="$(seq $a_first $a_last)"
    rip_last=$a_last
 fi

 cd_info
 destprep

 datarip

 for _trk in $trklist; do
    audiorip $_trk
    # Let audioencode run in bg
    if [ $_trk -ne $rip_last ]; then
        audioencode $_trk &
    else
        # We need to wait on the last one
        audioencode $_trk
    fi
 done

 ls -a *.cdtext >/dev/null 2>&1 && {
    echo Found CD-Text
    echo copying '*'.cdtext files
    cp *.cdtext "$dest_dir"
 }

 dupISRC=$(grep -h -E [[:upper:]]{2}-[[:alnum:]]{3}-[[:digit:]]{2}-[[:digit:]]{5} *.inf |
    uniq -d)
 [ -n "$dupISRC" ] && {
    echo WARNING: Duplicate ISRC numbers found in some tracks
    echo '\t'This is probably due to a bug in the way your CD-ROM drive
    echo '\t'reads ISRC codes. If accuracy is important, you should
    echo '\t'manually check/correct your track_xx.inf files\' ISRC codes.
 }
	#!/bin/sh

	_bsdl='
	Copyright (c) 2017, [email protected]
	All rights reserved.
	Redistribution and use in source and binary forms, with or without
	modification, are permitted provided that the following conditions are met:
	1. Redistributions of source code must retain the above copyright notice, this
	list of conditions and the following disclaimer.
	2. Redistributions in binary form must reproduce the above copyright notice,
	this list of conditions and the following disclaimer in the documentation
	and/or other materials provided with the distribution.
	THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
	ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
	WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
	DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
	ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
	(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
	LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
	ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
	SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	'

	cleanup() {
	# If this was run due to sigint, don't run again at exit
	[ ${_clean}X = 1X ] && return

	if [ -n "$workdir" ]; then
	if [ -z "$noclean" ]; then
	echo '\n'cleaning up...
	rm -rf "$workdir"
	echo ...done
	else
	echo \$noclean variable set
	echo not deleting temporary files in $workdir
	fi
	fi
	_clean=1
	}

	check_depends() {
	# Check for needed commands
	command -v readcd >/dev/null \|\| {
	echo Unable to locate readcd
	echo Make sure you have cdrtools installed.
	exit 1
	}

	command -v cdda2wav >/dev/null \|\| {
	echo Unable to locate cdda2wav
	echo Make sure you have cdrtools installed.
	exit 1
	}

	command -v flac >/dev/null \|\| {
	echo Unable to locate flac
	echo Make sure you have the flac encoder installed
	exit 1
	}
	}

	write_config() {
	cat<<_EOT >"$conf_file"
	# Some eacsh variables (and even functions) can be redefined.
	# Note that it's possible to break this script with bad values here.
	# If that happens, just remove the config file and re-run eacsh

	# base working directory (temp)
	#riptemp="$HOME/EACsh/tmp"

	# base directory for final results
	#ripdest="$HOME/EACsh"

	# default paraopts (passed to paranoia library; see man 1 cdda2wav)
	#para_opts='paraopts=proof'

	# cddb level (whether to do cddb lookups; see man 1 cdda2wav)
	#cddb_level=0

	# set "no" to not be prompted to hand-edit cddb info
	#cddb_edit=

	# optionsl cddb options (option=<value>; see man 1 cdda2wav)
	#cddb_opts=

	# text editor to use for editing cddb
	#txt_editor=/usr/bin/vi

	# File format (path and filename relative to $ripdest)
	# Ignored if cddb lookups are disabled
	# Special values understood by this script:
	# <ARTIST>, <ALBUM, <TRACK>, <TITLE>, <DATE>, <GENRE>, <CDDB>
	#file_spec="<ARTIST> - <ALBUM>/<TRACK> <TITLE>"
	#file_spec_va="Various - <ALBUM>/<TRACK> <ARTIST> - <TITLE>"

	_EOT

	echo Default config file written to $conf_file
	exit 255
	}

	get_rawtoc() {
	readcd -fulltoc 2>&1 \| \
	awk '/^TOC\ len/{flag=1; next}
	/^Lead\ out/{flag=0}
	flag'
	}

	# TOC - block of 11-byte entries
	# 1 session ID
	# 2 "bflags" -hints on this field found in cdda2wav file: toc.c)
	# - - first nibble (b 7-4) information about subchannels
	# - - - for audio/data track entries, this is <= 3
	# - - second nibble (b 3-0) track type is bit 2
	# - - - (bflags&4==0) audio; (blags&4==4) data
	# 4 type of entry
	# - - 0x01-0x63 - regular track; start sector in MSF at bytes 9-11
	# - - A0 - list session first track (byte 9)
	# - - A1 - list session last track (byte 9)
	# - - A2 - list session leadout in MSF at bytes 9-11
	# - - B0 - describe next session
	# - - - leadin in MSF at bytes 5-7
	# - - - session number at byte 8
	# - - - leadout in MSF at bytes 9-11
	# NOTE: hex TOC dumped by readcd uses real physical frame addresses, but
	# standards name physical sector 150 (2-sec pregap) as 0.
	# All of our tools will need the adjusted value, so always subtract 150.

	parse_rawtoc() {
	while read _01 _02 _03 _04 _05 _06 _07 _08 _09 _10 _11; do
	# Note session leadout; we'll use it if there's a data session
	if [ $_04 = A2 ]; then
	_lout=$(($(to_frames $((0x$_09)) $((0x$_10)) $((0x$_11)))-150))
	continue
	fi

	# Ignore entries with bflags >= 0x3f (usually between sessions)
	[ $((0x$_02)) -gt 63 ] && continue

	# We're not presently interested in any other non-track values
	[ $((0x$_04)) -gt 99 ] && continue

	# Session 1 is all audio, except track1 in cases of mixed mode
	if [ $_01 = 01 ]; then
	# Check track type - data
	if [ $((0x$_02 & 4)) -eq 4 ]; then
	# Mixed mode discs (really yellowbook CD-ROMs) have a
	# single data track followed by audio tracks. OK
	if [ $_04 = 01 ]; then
	mixedmode=yes
	# Save start sector of data track
	datastart=$(($(to_frames $((0x$_09)) $((0x$_10)) $((0x$_11)))-150))
	continue
	else # Your CD is weird. This script isn't for you
	echo ERROR:\\t Data track detected in session 1 \(but not track1\)
	echo \\tWe\'re not meant to handle this. Exiting...
	exit 1
	fi
	elif [ $_04 = 01 ]; then
	# detect extra pregap before track 1 (hidden track)
	[ $(to_frames $((0x$_09)) $((0x$_10)) $((0x$_11))) -gt 150 ] &&
	hidden=yes
	fi

	# Get end of data track for mixed-mode CDs
	if [ $_04 = 02 -a ${mixedmode}X = yesX ]; then
	dataend=$(($(to_frames $((0x$_09)) $((0x$_10)) $((0x$_11)))-150))
	fi
	# Only audio tracks left in session 1. Note the latest
	a_last=$((0x$_04))

	# Multisession E-CD/CD-PLUS/CD-EXTRA
	elif [ $_01 = 02 ]; then
	if [ -z "$a_last" ]; then # Not an Audio CD
	echo ERROR:\\t No audio tracks detected in session 1
	echo \\tWe\'re not meant to handle this. Exiting...
	exit 1
	# Mixed mode AND multisession: Wrong but maybe safe to ignore
	elif [ ${mixedmode}X = yesX ]; then
	echo WARNING: Found second session on mixed-mode CD
	echo \\tAssuming standard mixed-mode and ignoring
	echo \\tsubsequent sessions
	break
	# Warn on audio tracks in session 2. (Your CD is weird.)
	elif [ $((0x$_02 & 4)) -eq 0 ]; then
	echo WARNING: Session 2 has audio, but should be one data track
	echo \\tOnly processing audio from session 1 of nonstandard disc
	break
	fi
	multisession=yes
	datastart=$(($(to_frames $((0x$_09)) $((0x$_10)) $((0x$_11)))-150))
	dataend=$_lout
	# Stop processing after one data track (there can be only one!)
	break
	fi
	done<<_EOT
	$toc
	_EOT

	a_first=1
	if [ ${mixedmode}X = yesX ]; then
	a_first=2
	echo Mixed mode CD-ROM detected.
	echo Will attempt to save data track from sectors $datastart to $dataend
	elif [ ${multisession}X = yesX ]; then
	if [ -z "$datastart" -o -z "$dataend" ]; then
	echo WARNING: Multisession CD detected but no data track detected
	echo \\tWill not attempt to rip ECD data track.
	multisession=no
	else
	echo Multisession CD found\; likely an Enhanced-CD
	echo Will attempt to save data track from sectors $datastart to $dataend
	fi
	fi

	echo "Audio tracks available to rip:\t$a_first - $a_last"
	}

	cd_info() {
	# Confirm that we have an actuall hidden track - sometimes cdda2wav
	# doesn't register extra pregap as track0; trying to do anything with
	# that track will fail.
	if [ ${hidden}X = yesX ]; then
	echo checking for hidden track \#0...
	if cdda2wav -J -vtoc -g --no-infofile -out-fd=1 2>/dev/null \| \
	grep ^T00 >/dev/null ; then
	echo ...track 0 detected and can be extracted
	else
	echo ...no extractable audio found in track \#0
	unset hidden
	fi
	fi

	# we can check for indices/mcn/isrc in one shot and save all the
	# info files but for multisession discs, it doesn't want to do the
	# .inf's correctly unless we specify only the audio tracks.
	if [ ${hidden}X = yesX ]; then
	_trange=0+$a_last
	else
	_trange=$a_first+$a_last
	fi

	echo getting info on selected tracks...

	if [ $cddb_level = "-1" ]; then
	echo Skipping cddb lookup\; audio files will not be auto-tagged
	echo and will be named by CDDB disc ID and track number
	else
	get_cddb
	return
	fi

	while read _line; do
	case $_line in
	CDDB*)
	cddb_id=${_line#*: 0x}
	;;
	esac
	done<<_EOT
	$(cdda2wav -J -vindices,mcn,isrc -out-fd=1 -t$_trange -B track 2>/dev/null \| tee /dev/stderr)
	_EOT
	}

	get_cddb() {
	cdda2wav -J -L $cddb_level $cddb_opts -vindices,mcn,isrc \
	-t$_trange -B track 2>/dev/null

	# Convert CDDB from ISO-8859-1 to native locale before editing
	# Helpful for some terminal-based editors in UTF-8 locales
	if command -v iconv >/dev/null; then
	mv track.cddb track.cddb.LATIN1
	iconv --from-code=ISO-8859-1 track.cddb.LATIN1 >track.cddb
	fi

	if [ ${edit_cddb}X != noX ]; then
	read -p "Do you want to review/edit CDDB info? (y/N): " edit_response
	case $edit_response in
	y* \| Y*)
	$txt_editor track.cddb
	;;
	esac
	read -p "Does this CD feature Various Artists? (y/N): " various
	case $various in
	y* \| Y*)
	various=y
	;;
	esac
	fi

	# read global info into variables.
	_dtitle= disc_title= disc_artist=
	disc_id= disc_year= disc_genre= track_names=
	while read _line; do
	# control chars are not legal for tags or paths and having to
	# escape backslashes in commands just plain sucks.
	_line=$(printf -- "%s" "$_line" \|
	tr "\"" "'" \| tr -d "\\\\[:cntrl:]")
	case $_line in
	DISCID*)
	cddb_id=${_line#*=}
	;;
	DTITLE*)
	_dtitle=$_dtitle${_line#*=}
	;;
	DYEAR*)
	disc_year=${_line#*=}
	;;
	DGENRE*)
	disc_genre=${_line#*=}
	;;
	TTITLE) # Read all TTITLE lines for later parsing
	track_names=$track_names"
	"$_line
	;;
	esac
	done<<_EOT
	$(cat track.cddb)
	_EOT
	# In CDDB, the string " / " is a reserved separator for artist/title
	disc_artist=${_dtitle% / *}
	disc_title=${_dtitle#* / }
	}

	destprep() {
	if [ ${cddb_level}X = "-1"X ]; then
	dest_spec="$cddb_id/"
	elif [ ${various}X = yX ]; then
	dest_spec=${file_spec_va%/*}
	else
	dest_spec=${file_spec%/*}
	fi

	dest_dir=$(echo "$ripdest/$dest_spec" \|
	sed -e "s\|<ARTIST>\|$(sanitize "$disc_artist")\|g" \
	-e "s\|<ALBUM>\|$(sanitize "$disc_title")\|g" \
	-e "s\|<DATE>\|$disc_year\|g" \
	-e "s\|<GENRE>\|$(sanitize "$disc_genre")\|g" \
	-e "s\|<CDDB>\|$cddb_id\|g")

	[ -d "${dest_dir}" ] \|\| mkdir -p "${dest_dir}"

	if [ "$multisession"X = yesX ]; then
	cp toc.dat "$dest_dir/ECD_multisession_toc.dat"
	elif [ "$mixedmode"X = yesX ]; then
	cp toc.dat "$dest_dir/CD-ROM_mixed-mode_toc.dat"
	else
	cp toc.dat "$dest_dir/"
	fi
	}

	audiorip() {
	if [ $1 -eq 1 -a ${hidden}X = yesX ]; then
	_trange="0+1"
	_basename="track"
	else
	_trange="$1+$1"
	_basename=track_$(printf "%.2d" "$1")
	fi
	printf "\nRipping track $1...\t"
	cdda2wav -t $_trange -vmcn -paranoia $para_opts \
	-no-infofile -B $_basename 2>/dev/null
	}

	audiotags() {
	_tracknum=$1
	_tracknum_str=$2
	printf -- "-T TRACKTOTAL=%s " "$a_last"
	printf -- "-T TRACKNUMBER=%s " "$_tracknum_str"
	printf -- "-T CDDB=%s " "$cddb_id"
	# Without cddb, that's the most we can tag
	[ "$cddb_level" = "-1" ] && return

	printf -- "-T \"ALBUM=%s\" " "$disc_title"
	printf -- "-T \"DATE=%s\" " "$disc_year"
	printf -- "-T \"GENRE=%s\" " "$disc_genre"

	while read _track; do
	if [ "${_track%%=*}"X = "TTITLE$(($_tracknum-1))"X ]; then
	_trackname=${_trackname}${_track#*=}
	fi
	done<<_EOT
	$track_names
	_EOT
	# " / " artists/title separator also used for Various Artists tracks
	if [ ${various}X = yX ]; then
	_trackartist=${_trackname% / *}
	_trackname=${_trackname#* / }
	printf -- "-T \"ARTIST=%s\" " "$_trackartist"
	else
	printf -- "-T \"ARTIST=%s\" " "$disc_artist"
	fi
	printf -- "-T \"TITLE=%s\"" "$_trackname"
	}

	audioencode() {
	_tracknum=$1
	if [ $a_last -lt 10 ]; then
	_tracknum_str=$_tracknum
	else
	_tracknum_str=$(printf "%0.2d" "$_tracknum")
	fi
	_tagopts=$(audiotags $_tracknum $_tracknum_str)
	trackartist=${_tagopts#*\"ARTIST=}
	trackartist=${trackartist%%\"*}
	trackname=${_tagopts#*\"TITLE=}
	trackname=${trackname%%\"*}

	infile=track_$(printf "%0.2d" "$1").wav
	infofile=track_$(printf "%0.2d" "$1").inf

	if [ ${cddb_level}X = "-1"X ]; then
	out_spec="<CDDB>_<TRACK>"
	elif [ ${various}X = yX ]; then
	out_spec=$(echo ${file_spec_va##*/} \|
	sed -e "s\|<ARTIST>\|<TARTIST>\|g")
	else
	out_spec=${file_spec##*/}
	fi

	outfile=$dest_dir/$(echo "$out_spec" \|
	sed -e "s\|<ARTIST>\|$(sanitize "$disc_artist")\|g" \
	-e "s\|<TARTIST>\|$(sanitize "$trackartist")\|g" \
	-e "s\|<ALBUM>\|$(sanitize "$disc_title")\|g" \
	-e "s\|<TRACK>\|$_tracknum_str\|g" \
	-e "s\|<TITLE>\|$(sanitize "$trackname")\|g" \
	-e "s\|<DATE>\|$disc_year\|g" \
	-e "s\|<GENRE>\|$(sanitize "$disc_genre")\|g" \
	-e "s\|<CDDB>\|$cddb_id\|g").flac

	if [ $_tracknum -eq 1 -a ${hidden}X = yesX ]; then
	_htname="00 hidden track.flac"
	eval flac -5 -s "$_tagopts" -o "\"$dest_dir/$_htname\"" track_00.wav
	cp track_00.inf "$dest_dir/"
	fi
	eval flac -5 -s "$_tagopts" -o "\"$outfile\"" $infile
	printf -- "===FLAC===\n Finished encoding %s =>\n %s\n\n" "$infile" "$outfile"
	cp $infofile "$dest_dir/"
	}

	datarip() {
	if [ "$multisession"X = yesX -o "$mixedmode"X = yesX ]; then
	echo Saving data track \(Sectors $datastart - $dataend\)
	readcd sectors=$datastart-$dataend f=data.bin
	else
	return 0
	fi

	# Use last $dest_spec to determine copy destination
	if [ "$multisession"X = yesX ]; then
	cp data.bin "$dest_dir/ECD_sess:2_trk:$((a_last+1))_sector:$datastart.bin"
	else
	cp data.bin "$dest_dir/CDROM_sess:1_trk:1_sector:$datastart.bin"
	fi
	}

	sanitize() {
	# Note variables are already free of double-quotes and control chars
	# This value is being used in sed replacement, so & (which we want to
	# allow) needs to become escaped
	printf -- "%s" "$@" \| sed -e 's/^\.*//' -e 's/&/\\\&/g' \|\
	tr -d "><\|*/"
	}

	to_frames() {
	# minutes seconds frames. 75 frames per second, do the math
	_f=$((($14500)+($275)+$3))
	echo $_f
	}

	set -e
	# Clean up when leaving
	trap cleanup EXIT INT

	check_depends

	conf_file=$HOME/.eacsh.conf

	riptemp="$HOME/EACsh/tmp"
	ripdest="$HOME/EACsh"
	para_opts='paraopts=proof'
	cddb_level=0
	cddb_edit=
	cddb_opts=
	txt_editor=/usr/bin/vi
	file_spec="<ARTIST> - <ALBUM>/<TRACK> <TITLE>"
	file_spec_va="Various - <ALBUM>/<TRACK> <ARTIST> - <TITLE>"

	if [ -f "$conf_file" ]; then
	. "$conf_file"
	else
	echo Config file $conf_file does not exist: creating...
	write_config
	fi

	# Don't bother setting anything up if we can't read a disc
	readcd sectors=0-0 -f=- >/dev/null 2>&1 \|\| {
	echo ERROR:\\tDrive not ready
	echo \\tMake sure the drive contains a readable disc
	exit 1
	}

	# Make sure we can create riptemp and ripdest, or if they already exist
	# that we can write to them. Writability tests may fail on some systems
	# if directories on read-only filesystems are falsely reported writable
	mkdir -p "$riptemp" \|\| {
	echo ERROR:\\tFailed to create temporary directory $riptemp
	echo \\tMake sure that \$riptemp is set to a writable location
	exit 1
	}
	if [ ! -d "$riptemp" -o ! -w "$riptemp" ]; then
	echo ERROR:\\tTemporary directory is not writable
	echo \\tMake sure \$riptemp is set to a writable location on a
	echo \\tread-write-mounted filesystem.
	exit 1
	fi

	mkdir -p "$ripdest" \|\| {
	echo ERROR:\\tFailed to create output directory $ripdest
	echo \\tMake sure that \$ripdest is set to a writable location
	exit 1
	}
	if [ ! -d "$ripdest" -o ! -w "$ripdest" ]; then
	echo ERROR:\\tOutput directory is not writable
	echo \\tMake sure \$ripdest is set to a writable location on a
	echo \\tread-write-mounted filesystem.
	exit 1
	fi

	trklist="$@"
	workdir="$(mktemp -d -p "$riptemp" EACsh.XXXXX)"
	cd "$workdir"

	toc="$(get_rawtoc)"
	parse_rawtoc

	if [ -n "$trklist" ]; then
	do_data=no
	for _trk in $trklist; do
	case $_trk in
	[0-9]\|[1-9][0-9])
	[ $_trk -lt 0 -o $_trk -gt $a_last ] && badtrack=yes
	;;
	data)
	if [ ${multisession}X = yesX -o ${mixedmode}X = yesX]; then
	do_data=yes
	else
	echo WARNING: data track specified but no data track found
	echo \tContinuing without selecting a data track
	fi
	continue
	;;
	*)
	badtrack=yes
	;;
	esac
	if [ -n "$badtrack" ]; then
	echo ERROR: Track "$_trk" not in range of audio tracks on disc
	exit 1
	fi
	_last=$_trk
	done
	[ $do_data != yes ] && unset multisession mixedmode
	rip_last=$_last
	else
	trklist="$(seq $a_first $a_last)"
	rip_last=$a_last
	fi

	cd_info
	destprep

	datarip

	for _trk in $trklist; do
	audiorip $_trk
	# Let audioencode run in bg
	if [ $_trk -ne $rip_last ]; then
	audioencode $_trk &
	else
	# We need to wait on the last one
	audioencode $_trk
	fi
	done

	ls -a *.cdtext >/dev/null 2>&1 && {
	echo Found CD-Text
	echo copying '*'.cdtext files
	cp *.cdtext "$dest_dir"
	}

	dupISRC=$(grep -h -E [[:upper:]]{2}-[[:alnum:]]{3}-[[:digit:]]{2}-[[:digit:]]{5} *.inf \|
	uniq -d)
	[ -n "$dupISRC" ] && {
	echo WARNING: Duplicate ISRC numbers found in some tracks
	echo '\t'This is probably due to a bug in the way your CD-ROM drive
	echo '\t'reads ISRC codes. If accuracy is important, you should
	echo '\t'manually check/correct your track_xx.inf files\' ISRC codes.
	}