Convert debian package to tce/tcz package

deb2tcz.sh

#!/bin/bash
# Create tce/tcz from Debian package
# Usage: $ scriptname packagename.deb packaganame.tce
# Depends: squashfs-tools, findutils, binutils
# References:
#  - http://forum.tinycorelinux.net/index.php/topic,2325.msg12127.html
#  - http://pastebin.com/ed5KSPsH

TMP1="`mktemp -d /tmp/tce.1.XXXXXX`"
TMP2="$TMP1"/pkg
FILE="$1"
APPNAME="$2"
INPUT=${FILE##*.}

extract() {
    mkdir "$TMP2"
    ar p "$FILE" data.tar.gz > "$TMP1"/data.tar.gz
    tar xzvf "$TMP1"/data.tar.gz -C "$TMP2"
    cd "$TMP2"
    [ -d usr/share/doc ] && rm -r usr/share/doc
    [ -d usr/share/man ] && rm -r usr/share/man
    [ -d usr/share/menu ] && rm -r usr/share/menu
    find . -type d -empty | xargs rmdir > /dev/null 2&>1
}

make() {
  extract
  if [ "$1" == "tce" ]; then
    find `ls` -not -type d > "$TMP1"/list
    tar -T "$TMP1"/list -czvf /home/"$USER"/"$APPNAME"
  else
    mksquashfs "$TMP2" /home/"$USER"/"$APPNAME"
  fi

  cd
  rm -r "$TMP1"
}

[ "$USER" == "root" ] && echo "Do not run as root." && exit 1
[ -z "$APPNAME" ] && echo "You must specify an extension name." && exit 1
[ -f /home/"$USER"/"$APPNAME" ] && echo "You have an existing extension in your \
home directory, you need to move or delete it before trying again." && exit 1
[ -z "$1" ] && echo "You must specify a file."
if [ ! "$INPUT" == "deb" ] ; then
    echo "Only Debian packages work with this."
    exit 1
fi

EXT=${APPNAME##*.}
if [ `echo "$EXT" | grep "tce"` 2>/dev/null ]; then
    make tce
elif [ `echo "$EXT" | grep "tcz"` 2>/dev/null ]; then
    make tcz
else
    echo "You need to specify either a tcz or tce for the output file."
    exit 1
fi

if [ -f /home/"$USER"/"$APPNAME" ]; then
    echo "Success."
else
    echo "Something went wrong."
fi