#!/bin/sh
# Heavily based on the Slackware 13.37 SlackBuild
# Web site - http://search.cpan.org/~tyemq/Algorithm-Diff-1.1902/lib/Algorithm/Diff.pm
# Copyright 2008 Michele Petrecca
# All rights reserved.
# Packager Michele Petrecca (michelinux@alice.it)
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ''AS IS'' AND ANY EXPRESS OR IMPLIED
# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
# EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# Exit on most errors
set -e

# Set variables:
CWD=`pwd`
OUTPUT=${OUTPUT:-$CWD}
PKGNAME=algorithm-diff
TMP=${TMP:-/tmp/txz/$PKGNAME}
PKG=$TMP/package
VERSION=${VERSION:-1.1902}
ARCH=${ARCH:-i686}
BUILD=${BUILD:-7}
TAG=${TAG:-sl}


SOURCE="http://search.cpan.org/CPAN/authors/id/T/TY/TYEMQ/Algorithm-Diff-$VERSION.tar.gz"

# Download sorce tarball if still not present
if [ ! -e $CWD/Algorithm-Diff-$VERSION.tar.gz ]; then
wget -c $SOURCE
fi

# Create building directory
rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT


# Decompress the source tarball
cd $TMP
tar xvzf $CWD/Algorithm-Diff-$VERSION.tar.gz

echo -e "\E[0;32m+---------------------------------+\E[0;0m"
echo -e "\E[0;32m| Start SlackBuild Algorithm-Diff |\E[0;0m"
echo -e "\E[0;32m+---------------------------------+\E[0;0m"

# Adjust permissions and ownerships
cd Algorithm-Diff-$VERSION
chmod -R u+w,go+r-w,a-s .
chown -R root:root .

# Building Algorithm-Diff package
perl Makefile.PL
make test
make install DESTDIR=$PKG


#Add documentation files: readme, changelog and so on
mkdir -p $PKG/usr/doc/$PKGNAME-$VERSION/SlackBuild
cp -a Changes README $PKG/usr/doc/$PKGNAME-$VERSION
chmod 644 $PKG/usr/doc/$PKGNAME-$VERSION/*


# Fix manpage directory
mkdir -p $PKG/usr/man/man3
( cd $PKG/usr/share/man/man3
  cp -a * $PKG/usr/man/man3
  rm -r $PKG/usr/share
)

# Also add the slack-desk file and this slackbuild to the package
mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc
cat $CWD/slack-desc > $PKG/usr/doc/$PKGNAME-$VERSION/SlackBuild/slack-desc
cat $CWD/$PKGNAME.SlackBuild > $PKG/usr/doc/$PKGNAME-$VERSION/SlackBuild/$PKGNAME.SlackBuild


# Compress the man pages if present
if [ -d $PKG/usr/man ]; then
    ( cd $PKG/usr/man
      find . -type f -exec gzip -9 {} \;
      for i in $( find . -type l ) ; do ln -s $( readlink $i ).gz $i.gz ; rm $i ; done
    )
fi


# Find and print dependencies into slack-required file
cd $PKG
chown -R root:root $PKG
if [ -x /usr/bin/requiredbuilder ];then
requiredbuilder -y -v -s  $CWD $PKG
fi
# Create txz package
/sbin/makepkg -l y -c n $OUTPUT/$PKGNAME-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-txz}


# Cleanup if enabled
if [ "$1" = "--cleanup" ]; then
 rm -rf $TMP
fi