#!/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
#

CURRENT=`pwd`

# Informacoes peculiares sobre o pacote
PACKAGE_NAME="googleearth"
PACKAGE_VERSION="4.0.2413"
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="Google Earth beta4"
# nome do executavel (nao colocar barra no inicio)
APLICATION_BIN="googleearth"
# nome do icone que sera utilizado (nao colocar barra no inicio)
APPLICATION_ICON=$PAGKAGE_FOLDER/$PACKAGE_NAME/googleearth-icon.png
# descricao curta
PACKAGE_DESCRIPTION="Com o Google Earth você pode encontrar qualquer localidade na Terra"

# destino do pacote :
BUILD_DESTINY=$CURRENT/build/$PAGKAGE_FOLDER/$PACKAGE_NAME/
#########################################
# leia-me que será criado para o pacote #
#########################################
PACKAGE_README[1]="Com o Google Earth você pode encontrar qualquer localidade na Terra,"
PACKAGE_README[2]=" algumas com tanta precisão que é possível ver ruas, cruzamentos,"
PACKAGE_README[3]=" até hospitais e os restaurantes mais famosos em mapas 3D."
PACKAGE_README[4]="http://tribaltrouble.com/"

####################################################################
# 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 backups destes scripts
rm -f $BUILD_DESTINY/*.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 #
#####################
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=$PACKAGE_DESCRIPTION
Exec=/$PAGKAGE_FOLDER/$PACKAGE_NAME/$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.users $CURRENT/build/usr/share/applications/$PACKAGE_NAME.desktop
######################################################
# criando um script para carregar meu programa       #
# nao é necessario na maioria dos pacotes            #
######################################################
#mkdir -p $CURRENT/build/usr/bin
#cat > $CURRENT/build/usr/bin/$PACKAGE_NAME.sh <<END
##!/bin/bash
#cd "/opt/$PACKAGE_NAME"; ./$APLICATION_BIN; cd -
#END
#chmod +x $CURRENT/build/usr/bin/$PACKAGE_NAME.sh
#chmod 777 $CURRENT/build/usr/bin/$PACKAGE_NAME.sh
#chown nobody.users $CURRENT/build/usr/bin/$PACKAGE_NAME.sh
####
##############################################
# 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 "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

########################
# Acertando permissoes #
########################
find $CURRENT/build -type d -exec chmod 777  {} \;
chown nobody.users -R $CURRENT/build
####################################################
# Posicionando-se sob o diretorio a ser empacotado #
####################################################
cd $CURRENT/build
###############################################
# criar arquivo de dados em formato tarball   #
# neste exemplo, apenas pastas usr, opt e etc #
# podem ser instaladas                        #
###############################################
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

# retornar ao diretorio inicial
cd $CURRENT