#!/bin/bash
# Escrito por : Hamacker (sirhamacker@gmail.com)   2006-10-30
# Função :
# Este script cria um .deb para um pacote já précompilado e nas
# definicoes desse script o destino desse aplicativo será sempre
# em /opt/nomedoprograma
# se quiser '/usr/local' basta mudar 'PACKAGE_FOLDER' para :
# PACKAGE_FOLDER=usr/local
# apenas nao coloque barra no inicio do path
#
# se uma pasta for informada como parametro entao essa pasta será o
# nosso pacote a ser criado. Essa pasta deverá ter a conotação :
# nomedoprograma-versao
#
# Obs: Este script foi escrito com a ajuda deste link :
#      http://synthesize.us/HOWTO_make_a_deb_archive_without_dpkg
#
# Permissões que voce queira aplicar aos arquivos antes de empacota-los Ç
# acertando todas as permissoes de arquivos :
# sudo chown -vR nobody.users ./ 
# sudo find ./ -type f -exec chmod 666  {} \; 
# sudo find ./ -type d -exec chmod 777  {} \;
# sudo find ./*.sh -type f -exec chmod 777  {} \;

CURRENT=`pwd`

#if ! [ "$USER" = "root" ] ; then
#  echo "somente usuario root pode criar pacotes .deb"
#  exit 1;
#fi

# Informacoes peculiares sobre o pacote
PACKAGE_NAME="ie6"
PACKAGE_VERSION="6.0"
PACKAGE_SECTION="X11/Internet"
PACKAGE_MAINTAINER="hamacker <sirhamacker@gmail.com>"
SHORTCUT_CATEGORIES="Application;Network;"

# pasta onde sera instalado
PAGKAGE_FOLDER="opt"

# nome da aplicacao
APPLICATION_NAME="Microsoft Internet Explorer 6"
# nome do executavel (nao colocar barra no inicio)
APLICATION_BIN="ie6"
# nome do icone que sera utilizado (nao colocar barra no inicio)
APPLICATION_ICON=$PAGKAGE_FOLDER/$PACKAGE_NAME/ies4linux.svg
# descricao curta
PACKAGE_DESCRIPTION="Browser de Internet alternativo no Linux : Microsoft Internet Explorer 6."

# destino do pacote :
BUILD_DESTINY=$CURRENT/build/$PAGKAGE_FOLDER/$PACKAGE_NAME/
#########################################
# leia-me que será criado para o pacote #
#########################################
PACKAGE_README[1]="Browser de Internet alternativo no Linux : Microsoft Internet Explorer 6."
PACKAGE_README[2]="Não use o IE indiscriminadamente, as falhas de segurança desse browser poderão"
PACKAGE_README[3]=" colocar em risco seu sistema e voce não terá o Windows Update para atualizar esse navegador."
PACKAGE_README[4]="Use-o apenas quando alguma página na internet que for visitar barrar seu navegador favorito e/ou"
PACKAGE_README[5]=" requerer apenas o Internet Explorer."

####################################################################
# dentro de build/  recrio a estrutura que desejo ser instalada... #
####################################################################
if [ -d "$CURRENT/build" ] ; then
  rm -fR $CURRENT/build
fi

mkdir -p $BUILD_DESTINY
####################################################################
# ... e depois copio os arquivos para lá                           #
####################################################################
cp -vR $CURRENT/* $BUILD_DESTINY/

# apagar eventuais .deb que tenham sido gerados antes
rm -f $BUILD_DESTINY/*.deb
# remover este mesmo script
#rm -f $BUILD_DESTINY/criar_pacote_*deb.sh
rm -f $BUILD_DESTINY/criar_pacote_*deb.sh~

#################################################
# Construção do pacote tambem deve ser removido #
#################################################
rm -fR $BUILD_DESTINY/build

####################################################################
# remover arquivos desnecessarios no pacote                        #
####################################################################
#rm -fR $BUILD_DESTINY/src
#rm -fR $BUILD_DESTINY/obj
#rm -f $BUILD_DESTINY/makefile

# entro dentro do diretorio de construcao, e crio uma pasta doc
mkdir -p $CURRENT/build/etc
mkdir -p $CURRENT/build/opt
mkdir -p $CURRENT/build/usr/share/doc/$PACKAGE_NAME
##############################
# Escrever um arquivo README #
##############################
rm -f $CURRENT/build/usr/share/doc/$PACKAGE_NAME/README
touch $CURRENT/build/usr/share/doc/$PACKAGE_NAME/README
for linha_readme in "${PACKAGE_README[@]}";
do
  echo $linha_readme >>$CURRENT/build/usr/share/doc/$PACKAGE_NAME/README
done
##########################################
# criando um atalho para minha aplicação #
##########################################
mkdir -p $CURRENT/build/usr/share/applications
cat > $CURRENT/build/usr/share/applications/$PACKAGE_NAME.desktop <<END
[Desktop Entry]
Name=$APPLICATION_NAME
GenericName=$PACKAGE_DESCRIPTION
Comment=$PACKAGE_DESCRIPTIONecho
Exec=/$PAGKAGE_FOLDER/$PACKAGE_NAME/bin/$APLICATION_BIN
Icon=/$APPLICATION_ICON
Terminal=false
Type=Application
Categories=$SHORTCUT_CATEGORIES
END
chmod +x $CURRENT/build/usr/share/applications/$PACKAGE_NAME.desktop
chmod 777 $CURRENT/build/usr/share/applications/$PACKAGE_NAME.desktop
chown nobody.nobody $CURRENT/build/usr/share/applications/$PACKAGE_NAME.desktop
##############################################
# escrevendo o arquivo de controle "control" #
##############################################
echo "Package: $PACKAGE_NAME">$CURRENT/build/control
echo "Version: $PACKAGE_VERSION">>$CURRENT/build/control
echo "Section: $PACKAGE_SECTION">>$CURRENT/build/control
echo "Priority: optional">>$CURRENT/build/control
echo "Architecture: all">>$CURRENT/build/control
echo "Installed-Size: `du -ks usr|cut -f 1`">>$CURRENT/build/control
echo "Replaces: $PACKAGE_NAME">>$CURRENT/build/control
echo "Provides: $PACKAGE_NAME">>$CURRENT/build/control
echo "Depends: wine">>$CURRENT/build/control
echo "Recommends: msttcorefonts">>$CURRENT/build/control
#echo "Depends: msttcorefonts">>$CURRENT/build/control
echo "Maintainer: $PACKAGE_MAINTAINER">>$CURRENT/build/control
echo "Description: $PACKAGE_DESCRIPTION">>$CURRENT/build/control
for linha_long_desc in "${PACKAGE_README[@]}";
do
  echo " $linha_long_desc" >>$CURRENT/build/control
done
############################################################################
# Setting this environment variable fixes Apple's modified GNU tar so that #
# it won't make dot-underscore AppleDouble files. Google it for details... #
############################################################################
#export COPY_EXTENDED_ATTRIBUTES_DISABLE=1

###############################################
# criar arquivo de dados em formato tarball   #
# neste exemplo, apenas pastas usr, opt e etc #
# podem ser instaladas                        #
###############################################
cd $CURRENT/build
tar czvf data.tar.gz usr/ opt/ etc/

# criar arquivo de controle em formato tarball
tar czvf control.tar.gz control

# criar o arquivo debian-binary
echo "2.0" >$CURRENT/build/debian-binary

# create the ar (deb) archive
cd $CURRENT    
ar -r ../$PACKAGE_NAME-$PACKAGE_VERSION.deb \
      $CURRENT/build/debian-binary \
      $CURRENT/build/control.tar.gz \
      $CURRENT/build/data.tar.gz

if [ $? -ne 0 ] ; then
    echo "ops! falhou a criação do pacote $CURRENT/$PACKAGE_NAME-$PACKAGE_VERSION.deb !"
    exit;
else
    echo "[sucesso] Pacote criado com sucesso."
    echo "Para instalar :"
    echo "  sudo dpkg -i ../$PACKAGE_NAME-$PACKAGE_VERSION.deb"
    echo "Para remover :"
    echo "  sudo apt-get -y --purge remove $PACKAGE_NAME"
fi
echo "fim."

# remover os tarballs temporarios
rm $CURRENT/build/data.tar.gz $CURRENT/build/control.tar.gz

# remover o diretorio temporario
rm -fR $CURRENT/build/

# retornar ao diretorio inicial
cd $CURRENT