#!/bin/bash
set -e

usage="cpan2deb <module>"

if [ $# -ne 1 ]; then
	echo $usage
	exit 1
fi

cd $HOME
if [ -d locallib ]; then
	rm -rf locallib
fi
if [ -d build ]; then
	rm -rf build
fi

cpan -m $1 1>cpan.out 2>&1 || (echo "cpan failed"; exit 1)
builddir=$(ls -rt ~/.cpan/build |tail -1)
cd ~/.cpan/build/$builddir
perl Makefile.PL PREFIX="~/locallib"
make
make install 1>~/cpan.out 2>&1
echo "Module $1 installed to ~/locallib, output written to cpan.out"
cd

mkdir build

# build copy file
#grep "^Installing" cpan.out |sed "s/Installing //" >build/cpan.tmp

cd build

# edit copy file
#awk '{FS="/";} \
#/lib/ {print $0" $1/usr/share/perl5";} \
#/man/ {print $0" $1/usr/share/man";}' cpan.tmp >cpan.cp

# build package name
version=$(perl -M$1 -e 'print $ARGV[0]->VERSION' $1)
mname=$1
name=lib${mname/::/-}-perl
name=${name,,*}

mkdir -p $name/DEBIAN
cat << EOF >$name/DEBIAN/control
Package: $name
Version: $version
Section: base
Priority: optional
Architecture: all
Depends:
Maintainer: WagnerTech UG <mail@wagnertech.de>
Description: $1 perl modul
EOF

# execute copy script
#mkdir -p $name/usr/share/perl5
#mkdir -p $name/usr/share/man
#. cpan.cp $name 

# move locallib content
mkdir -p $name/usr/local/

for dir in $(ls ~/locallib); do
	case $dir in
	lib) ;;
	share) mv ~/locallib/share $name/usr/local/
	;;
	man) mv ~/locallib/man $name/usr/
	;;
	esac
done

fakeroot dpkg-deb --build $name
cp $name.deb ${name}_$version.deb
echo "${name}_$version.deb erstellt."