burnr xorriso wrapper script

burnr

#!/bin/sh
#
# burnr 0.2.0
#
# Copyright (c) 2015 James O'Doherty <[email protected]>
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
# Requires xorriso
#

usage() {
  cat <<EOF >&2
Usage: $0
          [ --help|-h|-? ]        Display help
          [ --out|-o "..." ]      Set output device or file
          [ --dry ]            Dry run (show commands and exit)
          [ --force|-f ]          Force blanking on rewritable discs
          [ --name|-n "..." ]     Set volume name for disc
          path                    Input device, directory, or file
EOF
}

if ! which xorriso > /dev/null 2>&1 || ! [ -x "$(which xorriso)" ]
then
  echo "$0 requires the xorriso package to be installed:" >&2
  if which yum > /dev/null 2>&1
  then
    echo " # yum install xorriso" >&2
  fi
  if which apt-get > /dev/null 2>&1
  then
    if which sudo > /dev/null 2>&1
    then
      echo " $ sudo apt-get install xorriso" >&2
    else
      echo " # apt-get install xorriso" >&2
    fi
  fi
  exit 1
fi

dryrun=false
force=false
input=
intype=
options=
output=
postcmd=
verbose=false
volid=`date +%Y_%m_%d`

while [ $# -gt 0 ]; do
  case $1 in
    --force|-f)
      force=true
      ;;
    --name|-n)
      volid="$2"
      shift
      ;;
    -o)
      if [ "$output" != "" ]; then
        echo Please specify only one output device or file
        exit 1
      fi
      output="$2"
      shift
      ;;
    --dry)
      verbose=true
      dryrun=true
      ;;
    -?|-h|--help)
      usage
      exit 1
      ;;
    *)
      if [ "$input" != "" ]; then
        echo Please specify only one input directory or ISO file
        exit 1
      fi
      input="$1"
      ;;
  esac
  shift
done

if [ "$output" == "" ]; then
  output=/dev/dvd
fi

if [ "$input" == "" ]; then
  echo Please specify an input directory or ISO file
  exit 1
fi

case "$input" in
  /dev/*)
    intype=dev
    ;;
  *.[iI][sS][oO])
    if ! [ -f "$input" ]; then
      echo Error: Expected ISO file, but $input doesn"'"t exist
      exit 1
    fi
    intype=iso
    ;;
  *)
    if ! [ -d "$input" ]; then
      echo Error: Expected directory
      exit 1
    fi
    intype=dir
    ;;
esac

case "$output" in
  /dev/*)
    umount "$output" > /dev/null 2>&1
    options="-close on $options"
    postcmd="$postcmd -eject"
    if $force
    then
      precmd="$precmd -blank as_needed"
    fi
    ;;
  *)
    if [ "$intype" == "iso" ]
    then
      echo "Error: Burning an iso to a non-device target" >&2
      usage
      exit 1
    fi
    ;;
esac

dry=
if $dryrun; then
  dry=echo
fi

case $intype in
  dev)
    umount "$input" > /dev/null 2>&1
    if ! which readom > /dev/null 2>&1 || ! [ -x "$(which readom)" ]
    then
      echo "$0 requires readom to be installed to read discs" >&2
      if which yum > /dev/null 2>&1
      then
        echo " # yum install wodim" >&2
      fi
      if which apt-get > /dev/null 2>&1
      then
        if which sudo > /dev/null 2>&1
        then
          echo " $ sudo apt-get install wodim" >&2
        else
          echo " # apt-get install wodim" >&2
        fi
      fi
      exit 1
    fi
    case "$output" in
      *.[Ii][Ss][Oo])
        $dry readom "dev=$input" "f=$output"
        ;;
      *)
        echo "Error: expected output file path" >&2
        exit 1
        ;;
    esac
    ;;
  iso)
    case "$output" in
      /dev/*)
        $dry xorriso -abort_on FATAL $options -as cdrecord -v \
          "dev=$output" blank=as_needed "$input" \
          -eject
        ;;
      *)
        echo "Error: expected output drive device path" >&2
        exit 1
        ;;
    esac
    ;;
  dir)
    case "$output" in
      /dev/*|*.[Ii][Ss][Oo])
        $dry xorriso -abort_on FATAL -volid "$volid" $options \
          -joliet on -in_charset utf-8 \
          -outdev "$output" \
          $precmd \
          -map "$input" / \
          -find / -type file -exec chmod a+r,a-wx -- \
          -find / -type dir -exec chmod a+rx,a-w -- \
          -commit -toc \
          $postcmd
        ;;
      *)
        echo "Error: output not a drive or ISO file path" >&2
        exit 1
        ;;
    esac
    ;;
  *)
    echo Unknown input type >&2
    exit 1
    ;;
esac