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#!/bin/sh
# $Id$
# Copyright (c) 2007 Eric Hameleers <alien@slackware.com>
# -----------------------------------------------------------------------------
#
# Slackware SlackBuild script 
# ===========================
# By:        Eric Hameleers <alien@slackware.com>
# For:       isomaster
# Descr:     a graphical CD image editor
# URL:       http://littlesvr.ca/isomaster/
# Needs:     
# Changelog:
# 0.7-1:     27/Jan/2007 by Eric Hameleers <alien@slackware.com>
#            * Initial build.
# 
# Run 'sh isomaster.SlackBuild --cleanup' to build a Slackware package.
# The package (.tgz) plus descriptive .txt file are created in /tmp .
# Install using 'installpkg'. 
#
# -----------------------------------------------------------------------------

# --- INIT ---
# Set initial variables:

PRGNAM=isomaster
VERSION=${VERSION:-0.7}
ARCH=${ARCH:-i486}
BUILD=${BUILD:-1}

DOCS="AUTHORS CHANGELOG.TXT CREDITS.TXT INSTALL LICENCE* README* bk/TODO.TXT"

# Where do we look for sources?
CWD=`pwd`
SRCDIR=`dirname $0`
[ "${SRCDIR:0:1}" == "." ] && SRCDIR=${CWD}/${SRCDIR}

# Place to build (TMP) package (PKG) and output (OUTPUT) the program:
TMP=${TMP:-/tmp/build}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

# Input URL: http://littlesvr.ca/isomaster/releases/isomaster-0.7.tar.bz2
SOURCE="$SRCDIR/${PRGNAM}-${VERSION}.tar.bz2"
SRCURL="http://littlesvr.ca/${PRGNAM}/releases/${PRGNAM}-${VERSION}.tar.bz2"

##
## --- with a little luck, you won't have to edit below this point --- ##
##

# Exit the script on errors:
set -e
trap 'echo "$0 FAILED at line $LINENO!" | tee $OUTPUT/error-${PRGNAM}.log' ERR
# Catch unitialized variables:
set -u
P1=${1:-1}

if [ ! -d $TMP/tmp-$PRGNAM ]; then
  mkdir -p $TMP/tmp-$PRGNAM # location to build the source
elif [ "$P1" != "--oldbuild" ]; then
  # If the "--oldbuild" parameter is present, we keep
  #  the old build files and continue;
  # By default we remove the remnants of previous build and continue:
  rm -rf $TMP/tmp-$PRGNAM/*
fi

if [ ! -d $PKG ]; then
  mkdir -p $PKG  # place for the package to be built
else
  rm -rf $PKG/*  # We always erase old package's contents:
fi

if [ ! -d $OUTPUT ]; then
  mkdir -p $OUTPUT  # place for the package to be saved
fi


# --- SOURCE FILE AVAILABILITY ---

if ! [ -f ${SOURCE} ]; then
  if ! [ "x${SRCURL}" == "x" ]; then
    # Check if the $SRCDIR is writable at all - if not, download to $OUTPUT
    [ -w "$SRCDIR" ] || SOURCE="$OUTPUT/`basename $SOURCE`"
    echo "Source '`basename ${SOURCE}`' not available yet..."
    echo "Will download file to `dirname $SOURCE`"
    wget -nv -O "${SOURCE}" "${SRCURL}" || true
    if [ $? -ne 0 ]; then
      echo "Downloading '`basename ${SOURCE}`' failed... aborting the build."
      mv -f "${SOURCE}" "${SOURCE}".FAIL
      exit 1
    fi
  else
    echo "File '`basename ${SOURCE}`' not available... aborting the build."
    exit 1
  fi
fi

if [ "$P1" == "--download" ]; then
  echo "Download complete."
  exit 0
fi

# --- PACKAGE BUILDING ---

echo "++"
echo "|| $PRGNAM-$VERSION"
echo "++"

cd $TMP/tmp-$PRGNAM

# --- TARBALL EXTRACTION,PATCH,MODIFY ---

echo "Extracting the source archive(s) for $PRGNAM..."
if `file ${SOURCE} | grep -q ": bzip2"`; then
  tar -xjvf ${SOURCE}
else
  tar -xzvf ${SOURCE}
fi
cd ${PRGNAM}-${VERSION}

chown -R root:root .
chmod -R u+w,go+r-w,a-s .


# --- BUILDING ---

echo Building ...
make PREFIX=/usr 2>&1 | tee $OUTPUT/make-${PRGNAM}.log

#
# Install all the needed stuff to the package dir
#
# Use installwatch if available, to produce a logfile of the installation
# process that is more easily readable:
if `which installwatch  > /dev/null 2>&1`; then
  installwatch -o $OUTPUT/install-${PRGNAM}.log make PREFIX=/usr DESTDIR=$PKG install
else
  make PREFIX=/usr  DESTDIR=$PKG install 2>&1 |tee $OUTPUT/install-${PRGNAM}.log
fi

# Create the .desktop file
mkdir -p $PKG/usr/share/applications
cat <<-EOT > $PKG/usr/share/applications/${PRGNAM}.desktop
	[Desktop Entry]
	Encoding=UTF-8
	Exec=isomaster
	Name=ISO Master
	GenericName=ISO Master
	Comment=CD image editor
	Icon=/usr/share/isomaster/icons/isomaster.png
	Terminal=false
	Categories=GTK;System;Settings;
	StartupNotify=true
	Type=Application
	EOT


# --- DOCUMENTATION ---

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a $DOCS $PKG/usr/doc/$PRGNAM-$VERSION || true
chmod -R a-w $PKG/usr/doc/$PRGNAM-$VERSION/*

# Strip binaries
( cd $PKG
  find . | xargs file | grep "executable" | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null
  find . | xargs file | grep "shared object" | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null
)


# --- OWNERSHIP, RIGHTS ---

chmod -R o-w $PKG


# --- PACKAGE DESCRIPTION ---

mkdir -p $PKG/install
cat $SRCDIR/slack-desc > $PKG/install/slack-desc
if [ -f $SRCDIR/doinst.sh ]; then
  cat $SRCDIR/doinst.sh >> $PKG/install/doinst.sh
fi


# --- BUILDING ---

# Build the package:
cd $PKG
makepkg --linkadd y --chown n $OUTPUT/${PRGNAM}-${VERSION}-${ARCH}-${BUILD}.tgz \
  2>&1 | tee $OUTPUT/makepkg-${PRGNAM}.log
(cd $OUTPUT && md5sum ${PRGNAM}-${VERSION}-${ARCH}-${BUILD}.tgz > ${PRGNAM}-${VERSION}-${ARCH}-${BUILD}.tgz.md5)
cat $PKG/install/slack-desc | grep "^${PRGNAM}" > $OUTPUT/${PRGNAM}-${VERSION}-${ARCH}-${BUILD}.txt


# --- CLEANUP ---

# Clean up the extra stuff:
if [ "$P1" = "--cleanup" ]; then
  rm -rf $TMP/tmp-$PRGNAM
  rm -rf $PKG
fi