#!/bin/bash
#
# $Id: icecast.SlackBuild,v 1.4 2006/02/28 15:12:47 root Exp root $
# Copyright (c) 2006 Eric Hameleers <alien@slackware.com>
# Distributed under the terms of the GNU General Public License, Version 2
# ---------------------------------------------------------------------------
# Slackware SlackBuild script
# ===========================
# By:        Eric Hameleers <alien@slackware.com>
# For:       Icecast
# URL:       http://www.icecast.org/
# Summary:   Xiph Streaming media server that supports
#            multiple audio formats (and theora video streams too).
# Needs:     libvorbis, libogg, libxml2, curl and optionally libtheora
# Changelog:
# 2.0.0-1:   16/jan/2004 by Eric Hameleers
# 2.0.0-2:   17/jan/2004 by Eric Hameleers
#            Bug fix in the rc.icecast script
# 2.0.0-3:   22/apr/2004 by Eric Hameleers
#            Add "next" operatrion to rc.icecast
# 2.0.2-1:   20/oct/2004 by Eric Hameleers
#            Rebuilt new releease.
# 2.2.0-1:   01/jan/2005 by Eric Hameleers
#            Rebuilt new releease.
# 2.2.0-2:   11/aug/2005 by Eric Hameleers
#            Add "current" and "status" to rc.icecast parameters.
#            Make sure that existing /etc/rc.d/rc.icecast isn't overwritten.
# 2.2.0-3:   17/sep/2005 by Eric Hameleers
#            Forgot to add "current" to rc.icecast 'help' output
#            (i.e. run rc.icecast with no parameters).
# 2.3.0-1:   04/oct/2005 by Eric Hameleers
#            New release.
# 2.3.1-1:   28/feb/2006 by Eric Hameleers <alien@sox.homeip.net>
#            New release.
# 2.3.1-1-r: 07/jun/2006 by rhatto at riseup.net
#            Small changes to fit in slack.sarava.org standards
#
# ---------------------------------------------------------------------------
#

if [ -s "slack-required" ]; then
  echo Recomended and required packages for building icecast are:
  cat slack-required | sed -e 's/^/\t/'
  if [ "$INTERACT" != "no" ]; then
    echo If you dont have those installed, press Ctrl-C. Otherwise, hit ENTER.
    read crap
#  else
#    echo Sleeping 3 seconds...
#    sleep 3
  fi
fi

# Set initial variables:
CWD="`pwd`"

if [ -f ~/.slackbuildrc ]; then
  source ~/.slackbuildrc
elif [ -f /etc/slackbuildrc ]; then
  source /etc/slackbuildrc
fi

PRGNAM=icecast
PACKAGE="$PRGNAM"
VERSION=${VERSION:=2.3.2}
#VERSION=${VERSION:=2.3-kh8a}
ARCH=${ARCH:=i486}
BUILD=${BUILD:=1rha}
TMP=${TMP:=/tmp}
SRC_DIR=${SRC:=$CWD}
REPOS=${REPOS:=$TMP}

# -------  error codes for createpkg  --------------
ERROR_WGET=31;      ERROR_MAKE=32;      ERROR_INSTALL=33
ERROR_MD5=34;       ERROR_CONF=35;      ERROR_HELP=36
ERROR_TAR=37;       ERROR_MKPKG=38;     ERROR_GPG=39
ERROR_PATCH=40

if [ "$ARCH" == "x86_64" ]; then
  LIBDIR=/usr/lib64
else
  LIBDIR=/usr/lib
fi

SRC_DIR="$SRC_DIR/$PACKAGE"
mkdir -p $SRC_DIR

RTOOL="wget"
PACKAGE_EXT="gz"
SRC="$PACKAGE-$VERSION.tar.$PACKAGE_EXT"

if echo $VERSION | grep -q "kh"; then
  URL="http://www.icecast.pwp.blueyonder.co.uk/$SRC"
else
  URL="http://downloads.xiph.org/releases/$PACKAGE/$SRC"
fi

if [ "$RTOOL" == "wget" ] && [ ! -f "$SRC_DIR/$SRC" ]; then
  wget "$URL" -O "$SRC_DIR/$SRC" || exit $ERROR_WGET
fi

TMP="$TMP/$PACKAGE"
rm -rf $TMP

PKG=$TMP/package-$PRGNAM

if [ ! -d $TMP/tmp-$PRGNAM ]; then
  mkdir -p $TMP/tmp-$PRGNAM # location to build the source
fi
if [ ! -d $PKG ]; then
  mkdir -p $PKG             # place for the package to be built
fi


# --- HELPER FUNCTIONS ---

#
# Function 'preconfig filename [remove]'
#
#   param1 (required) may be a wildcard;
#          in that case surround it with double quotes!
#   param2 (optional) has value 'remove'
#
# Description:
# Prepare the incoming configuration files which are not allowed
# to overwrite existing ones.
# These files will get a '.new' extension.
# An entry in the 'doinst.sh' script will be created for these files, copying
# the *.new files back to their original names,
# but only if the original names don't exist.
# Use the second parameter 'remove', like in 'preconfig filename(s) remove'
# to add a 'rm -f filename.new' in 'doinst.sh', so as not to clutter
# the harddisk with useless example files.

preconfig() {
  mkdir -p $PKG/install 2>/dev/null
  for infile in $1; do
    mv ${infile} ${infile}.new
  done
  echo -n "config \"$1.new\"" >> $PKG/install/doinst.sh
  # If there's a second parameter with value 'remove' add a 'rm filename.new'
  if [ "$2" = "remove" ]; then
    echo -n " ; rm -f $1.new" >> $PKG/install/doinst.sh
  fi
  echo ""  >> $PKG/install/doinst.sh
}


# --- PACKAGE BUILDING ---

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

iceuser=icecast
icegroup=icecast

rm -rf $PKG/*

# Explode the package framework:
cd $PKG
if [ -f $CWD/_$PRGNAM.tar.gz ]; then
  explodepkg $CWD/_$PRGNAM.tar.gz || exit $ERROR_TAR
fi

cd $TMP/tmp-$PRGNAM

# Extract tar ball in TEMP dir
echo Building $PRGNAM...
tar xvf $SRC_DIR/$PRGNAM-$VERSION.tar.gz || exit $ERROR_TAR
cd $PRGNAM-$VERSION
./configure --prefix=/usr --sysconfdir=/usr/share/icecast/etc \
            --libdir=$LIBDIR --localstatedir=/var || exit $ERROR_CONF

make || exit $ERROR_MAKE

# Install all the needed stuff to the package dir
# Use installwatch if available:
# which installwatch > /dev/null 2>&1
# if [ $? == 0 ]; then
#   installwatch -o $TMP/install-${PRGNAM}.log make DESTDIR=$PKG install
# else
make DESTDIR=$PKG install || exit $ERROR_INSTALL
# fi

mkdir -p $PKG/var/log/icecast

if [ -f "$CWD/icecast_conf.patch" ]; then
  (cd $PKG/usr/share/icecast/etc && patch -p0 < $CWD/icecast_conf.patch)
  true
fi

# --- DOCUMENTATION ---

# Compress the man page
gzip -9 $PKG/usr/man/*/*

# Copy the documentation
mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
mv $PKG/usr/share/doc/icecast/* $PKG/usr/doc/$PRGNAM-$VERSION/
rm -r $PKG/usr/share/doc
chmod -R -w $PKG/usr/doc/$PRGNAM-$VERSION


# --- POST-INSTALL SCRIPT ---

# --- Fabricate the 'doinst.sh' script: ------
mkdir -p $PKG/install

cat <<EOINS > $PKG/install/doinst.sh
# Handle the incoming configuration files:
config() {
  for infile in \$1; do
    NEW="\$infile"
    OLD="\`dirname \$NEW\`/\`basename \$NEW .new\`"
    # If there's no config file by that name, mv it over:
    if [ ! -r \$OLD ]; then
      mv \$NEW \$OLD
    elif [ "\`cat \$OLD | md5sum\`" = "\`cat \$NEW | md5sum\`" ]; then
      # toss the redundant copy
      rm \$NEW
    fi
    # Otherwise, we leave the .new copy for the admin to consider...
  done
}

chroot . /sbin/ldconfig

# Take care of rc.icecast
config etc/rc.d/rc.icecast.new

#Add the '${icegroup}' group if it doesn't exist already
chroot . /usr/sbin/groupadd ${icegroup} 2> /dev/null
#Add the '${iceuser}' user if it doesn't exist already
chroot . /usr/sbin/useradd -c "Icecast" -d /usr/share/icecast \\
        -g ${icegroup} -s "/bin/false" ${iceuser} 2> /dev/null

# Configure the home directory
mkdir -p usr/share/icecast
chroot . /usr/bin/chown -R ${iceuser}:${icegroup} usr/share/icecast
chmod 750 usr/share/icecast

# Configure the log directory
mkdir -p var/log/icecast
chroot . /usr/bin/chown -R ${iceuser} var/log/icecast
chmod 750 var/log/icecast

#
# Update rc.local so that Icecast will be started on boot
#
if ! grep "rc.icecast" etc/rc.d/rc.local 1>/dev/null 2>&1 ; then
  cat <<-_EOM_ >> etc/rc.d/rc.local
	
	if [ -x /etc/rc.d/rc.icecast ]; then
	  # Start Icecast server
	  echo "Starting icecast:    /etc/rc.d/rc.icecast start"
	  /etc/rc.d/rc.icecast start
	fi
	_EOM_
fi

EOINS

# --- End of 'doinst.sh' script -----------

# Finally, take care of the configuration files:
# Rename those files which must not overwrite existing ones when the package
# is installed. Corresponding entries will be created at the end of
# the 'doinst.sh' script.
(cd $PKG ; preconfig usr/share/icecast/etc/$PRGNAM.xml)
echo "" >> $PKG/install/doinst.sh


# --- OWNERSHIP, RIGHTS ---
chown -R root.root $PKG

find $PKG  -type f -name "*~" -exec rm -f {} \;

# --- PACKAGE DESCRIPTION ---
mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc


# --- BUILDING ---

# Build the package and compute its md5 checksum:
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

VERSION="`echo $VERSION | sed -e 's/-/_/g'`"

makepkg --linkadd y --chown n $REPOS/$PRGNAM-$VERSION-$ARCH-$BUILD.tgz || exit $ERROR_MKPKG

#(cd $REPOS && md5sum $PRGNAM-$VERSION-$ARCH-$BUILD.tgz > $PRGNAM-$VERSION-$ARCH-$BUILD.tgz.md5)
#cat $PKG/install/slack-desc | grep "^${PRGNAM}" > $REPOS/$PRGNAM-$VERSION-$ARCH-$BUILD.txt
 

# --- CLEANUP ---

# Clean up the extra stuff:
if [ "$CLEANUP" == "yes" ]; then
  rm -rf $TMP
fi

#
# EOF
#