#!/bin/bash 

# This bash script creates a (binary) Debian Package Archive for pdf2htmlEX

source ./buildScripts/reSourceVersionEnvs

echo ""
echo "-------------------------------------------------------------------"
echo "CREATING pdf2htmlEX (binary) Debian package"
echo "-------------------------------------------------------------------"
echo ""

source /etc/lsb-release

set -ev

export DPKG_NAME="pdf2htmlEX-$PDF2HTMLEX_BRANCH-$BUILD_TIME-$MACHINE_ARCH-$DISTRIB_CODENAME.deb"

echo "export DPKG_NAME=\"$DPKG_NAME\"" >> buildScripts/reSourceVersionEnvs

# Adapted from: https://blog.serverdensity.com/how-to-create-a-debian-deb-package/
# and: http://www.sj-vs.net/creating-a-simple-debian-deb-package-based-on-a-directory-structure/

DEBDIR=imageBuild/debianDir
DOCDIR=$DEBDIR/usr/local/share/doc/pdf2htmlEX

sudo rm -rf $DEBDIR
mkdir -p $DOCDIR

# Install pdf2htmlEX
#
cd pdf2htmlEX/build
#
make install DESTDIR=../../$DEBDIR

# Install a copy of poppler-data for pdf2htmlEX's exclusive use
#
cd ../../poppler-data
#
make install                                  \
  prefix=$PDF2HTMLEX_PREFIX                   \
  datadir=$PDF2HTMLEX_PREFIX/share/pdf2htmlEX \
  DESTDIR=../$DEBDIR

cd ..

# Create a 'useful' changelog
#
git log --format="%cd %h %d %n    %s%n" --date=short > $DOCDIR/gitLog

# Ensure the license and readme details are embedded in the debian archive 
#
cp LICENSE       $DOCDIR
cp LICENSE_GPLv3 $DOCDIR
cp README.md     $DOCDIR

########################################
# setup the DEBIAN package files

controlFile=$DEBDIR/DEBIAN/control
conffilesFile=$DEBDIR/DEBIAN/conffiles
md5sumsFile=$DEBDIR/DEBIAN/md5sums

mkdir -p $DEBDIR/DEBIAN

# Create the md5sums file
#
find $DEBDIR -type f | xargs md5sum > $md5sumsFile

# Accumulate the control file information
#
versionValue=$(git describe --abbrev=0)
architectureValue=$(dpkg-architecture -q DEB_BUILD_ARCH_CPU)
maintainerValue="$(git config --get user.name) <$(git config --get user.email)>"

# Now create the control file
#
echo "Package: pdf2htmlEX"                                      > $controlFile
echo "Version: 0:0.$versionValue-0"                            >> $controlFile
echo "Distribution: $DISTRIB_CODENAME"                         >> $controlFile
echo "Architecture: $architectureValue"                        >> $controlFile
echo "Section: universe/web"                                   >> $controlFile
echo "Priority: optional"                                      >> $controlFile
echo "Essential: no"                                           >> $controlFile
echo "Depends:  libglib2.0-0, libfreetype6, libfontconfig1, libcairo2, libpng16-16, libjpeg-turbo8, libxml2" >> $controlFile
echo "Maintainer: $maintainerValue"                            >> $controlFile
echo "Homepage: http://github.com/pdf2htmlEX/pdf2htmlEX"       >> $controlFile
echo "Description: Converts PDF to HTML without losing format" >> $controlFile
echo "  pdf2htmlEX converts PDF to HTML while retaining text, format & style as much as possible" >> $controlFile

# Create the (empty) conffiles
#
touch $conffilesFile

# Finally create the debian archive
#
cd imageBuild
#
sudo chown -R root:root debianDir
#
dpkg --build debianDir $DPKG_NAME
