#!/bin/sh
#
# -----------------------------------------------------------------------------
#
# Slackware SlackBuild script 
# ===========================
# By:        Eric Hameleers <alien@sox.homeip.net>
# For:       pwc
# URL:       http://www.saillard.org/linux/pwc/
# Needs:     
# Changelog:
# 10.0.7a-1:   01/Aug/2005 by Eric Hameleers <alien@sox.homeip.net>
#            * Initial build.
# 
# Run 'sh SlackBuild --cleanup' to build a Slackware package.
# The package (.tgz) plus descriptive .txt file are created in /tmp .
# Install using 'installpkg'. 
#
# -----------------------------------------------------------------------------

# Control what to do and what not:
DOWNLOADS=${DOWNLOADS:-1}       # set to '0' if you don't want missing sources
                                # to be downloaded before the build.


# --- INIT ---
# Set initial variables:
CWD=`pwd`
if [ "$TMP" = "" ]; then
  TMP=/tmp
fi

PRGNAM=pwc
VERSION=10.0.7a
ARCH=${ARCH:-i486}
BUILD=1

KVER=${KVER:-`uname -r`}
KSRC=${KSRC:-/usr/src/linux-${KVER}}

if [ "$ARCH" = "i386" ]; then
  SLKCFLAGS="-O2 -march=i386 -mcpu=i686"
elif [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mcpu=i686"
elif [ "$ARCH" = "s390" ]; then
  SLKCFLAGS="-O2"
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2"
elif [ "$ARCH" = "athlon-xp" ]; then
  SLKCFLAGS="-march=athlon-xp -O3 -pipe -fomit-frame-pointer"

fi

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


# --- SOURCE FILE AVAILABILITY ---

SOURCE[0]="${PRGNAM}-${VERSION}.tar.bz2"
SOURCE[1]="ChangeLog"

SRCURL[0]="http://www.saillard.org/linux/pwc/files/${PRGNAM}-${VERSION}.tar.bz2"
SRCURL[1]="http://www.saillard.org/linux/pwc/ChangeLog"

if [ $DOWNLOADS -eq 1 ]; then
  for (( i = 0; i < ${#SOURCE[*]}; i++ )) ; do
    if ! [ -f ${CWD}/${SOURCE[$i]} ]; then
      echo "Source '${SOURCE[$i]}' not available yet... will download now:"
      wget -nv -O ${CWD}/${SOURCE[$i]} "${SRCURL[$i]}"
      if [ $? -ne 0 ]; then
        echo "Downloading '${SOURCE[$i]}' failed... aborting the build."
        exit 1
      fi
    fi
  done
fi



# --- PACKAGE BUILDING ---

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

rm -rf $PKG/*

cd $PKG

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

cd $TMP/tmp-$PRGNAM


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

echo "Extracting the program tarball for $PRGNAM..."
tar -xjvf $CWD/${PRGNAM}-${VERSION}.tar.bz2

cd ${PRGNAM}-${VERSION}

chown -R root.root *
find . -perm 777 -exec chmod 755 {} \;


# --- BUILDING ---

echo Building ...

CFLAGS="$SLKCFLAGS" KVER=${KVER} \
make 2>&1 | tee $CWD/make-${PRGNAM}.log

#
# Install all the needed stuff to the package dir
#
mkdir -p $PKG/lib/modules/${KVER}/kernel/drivers/usb/media
cp -a pwc.ko $PKG/lib/modules/${KVER}/kernel/drivers/usb/media/
chmod 644 $PKG/lib/modules/${KVER}/kernel/drivers/usb/media/pwc.ko


# And now write the module install stuff into doinst.sh :
mkdir -p $PKG/install
cat <<-EEOOTT > $PKG/install/doinst.sh
	# Check if we can depmod and modprobe the new module;
	# The running kernel must match with our kernel module:
	MYMODVER=$KVER
	MYKERNEL=\`uname -r\`
	# Check if the filesystem we're installing to,
	# is the root filesystem for our running kernel:
	TARI=\`/bin/ls -i etc/slackware-version | /bin/cut -f 1 -d ' '\`
	SRCI=\`/bin/ls -i /etc/slackware-version | /bin/cut -f 1 -d ' '\`
	
	if [ "\$MYKERNEL" = "\$MYMODVER" -a "\$SRCI" = "\$TARI" ]; then 
	  # Try to remove pwc plus possibly the obsolete pwcx module:
	  sbin/modprobe -r pwcx pwc 1> /dev/null 2> /dev/null
	  sbin/depmod -a \$MYKERNEL 1> /dev/null 2> /dev/null
	  sbin/modprobe pwc 1> /dev/null 2> /dev/null
	fi
	
	# Make sure the module gets loaded on boot:
	if ! grep -q "pwc" etc/rc.d/rc.modules ; then
	  echo "# Load the PWC kernel module" >> etc/rc.d/rc.modules
	  echo "/sbin/modprobe pwc" >> etc/rc.d/rc.modules
	fi
	
	EEOOTT


# --- DOCUMENTATION ---

DOCS="$CWD/ChangeLog philips.txt"

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


# --- PACKAGE DESCRIPTION ---

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


# --- BUILDING ---

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


# --- CLEANUP ---

# Clean up the extra stuff:
if [ "$1" = "--cleanup" ]; then
  rm -rf $TMP/tmp-$PRGNAM
  rm -rf $PKG
fi