Slack MkISO

#!/bin/bash

# ISO Build script by Arkanon <arkanon@lsd.org.br>
# Last update @ 2011/03/20 (Dom) 11:58:23 (BRS)

if ( [ $# = 0 -o $# -gt 2 -o $# = 1 -a "$1" != curr ] || ( [ $# = 2 ] && [ "$1" != stab ] && ! ls -1d slackware-[0-9]* | grep -q "$1" ) )
then
  echo "Usage: `basename $0`   stab|curr|<version_number, if !(stab|curr)>   <build_number, if !curr>"
  builds=$(cat $0 | grep -E "^# +[0-9]+ +")

# [ "$1" ] \
#   && echo -n "Maybe build number be " \
#   && ( [ "$1" = stab ] && echo "$builds" | head -n1 || echo "$builds" | sed -n '/^# \+1 \+/{n;p;}' ) | awk -F" *" '{print$2}'

  [ "$1" ] \
    && echo -n "Maybe build number be " \
    && echo "$builds" | ( [ "$1" = stab ] && head -n1 || sed -n '/^# \+1 \+/{n;p;}' ) | awk -F" *" '{print$2}'

  exit
fi

slack_version=$1
    iso_build=$2
        label=$slack_version
      pkgtype="txz"
     tar_flag="J"

if   [ $1 = stab ]
then
  slack_version=`readlink stable | cut -d- -f2-`
          label="stable"
elif [ $1 = curr ]
then
  slack_version="current"
      iso_build=`date +%Y%m%d_%H%M%S`
          label=$slack_version
elif [ `echo $1 | cut -d. -f1` -lt 13 ]
then
   pkgtype="tgz"
  tar_flag="z"
fi

 iso="iso"
root="$HOME/espelhos/slackware"
srcd="$root/slackware-$slack_version"
outd="dvd"
outf="$outd/slackware-$slack_version-$iso_build.iso"

ln -fs $outf $label.iso

[ -e $srcd ] || { echo "Source directory '$srcd' not found."; exit; }
[ -e $outd ] || { echo "Output directory '$outd' not found."; exit; }
[ -e $outf ] && { echo "Output file '$outf' already exists."; exit; }



var=`deltat start`
rm -rf $iso/
cp -al $srcd/ $iso/
deltat stop "$var"


# BEGIN LINK PATCHES

#      iso="."
#  pkgtype="txz"
  awk_code='{for(i=1;i<NF-3;i++)printf$i"-";print$i"\t"$(NF-2)}'
   updates=$((cd $iso/patches/packages/ &> /dev/null && ls -1 *.$pkgtype) | awk -F- $awk_code)
       old=$(echo "$updates" | while read pkg ver; do find $iso/{extra,slackware}/ -name "$pkg-*.$pkgtype"; done | awk -F- $awk_code | sort | uniq)

  echo -n "$updates" | while read pkg uver
  do
       i=$(echo "$old" | grep -P "/$pkg\t")
    [ "$i" ] && path=$(dirname $(echo "$i" | cut -f1)) || path=$iso/slackware/y
    over=$(echo "$i" | cut -f2)
    (
      cd $path/
      rm -f $pkg-$over-*
      ln -fs ../../patches/packages/$pkg-$uver-* .
    )
  done

# END LINK PATCHES

var=`deltat start`

cp -aL .sync  $iso/
cp -aL $0     $iso/BUILD-$iso_build
chown -R 0:0 $iso/

msg=isolinux/message.txt
swv=etc/slackware-version

(
  cd $iso/

  cat $msg | sed "s/\(version [^ ]\+ \)(/\1build $iso_build /" >| $msg.tmp
  mv $msg.tmp $msg

  mkdir aaa
  cd aaa
  pkg=../slackware/a/aaa_base-*.$pkgtype
  tar ${tar_flag}xf $pkg
  echo `cat $swv` build $iso_build >| $swv.tmp
  mv $swv.tmp $swv
  makepkg -l y -c n ../$(basename $pkg)
  cd ..
  rm -r aaa
  mv aaa_base-*.$pkgtype slackware/a

  mkisofs \
    -v \
    -V "Slack $slack_version b$iso_build" \
    -A "Slackware Install" \
    -T \
    -R \
    -J \
    -d \
    -N \
    -allow-leading-dots \
    -allow-lowercase \
    -allow-multidot \
    -joliet-long \
    -hide-joliet-trans-tbl \
    -hide-rr-moved \
    -no-emul-boot \
    -boot-load-size 4 \
    -boot-info-table \
    -sort isolinux/iso.sort \
    -b isolinux/isolinux.bin \
    -c isolinux/isolinux.boot \
    -o $root/$outf \
    .

)

echo
deltat stop "$var"
echo

# EOT