#!/bin/sh
# $Id: x264.SlackBuild,v 1.11 2024/03/24 18:51:08 root Exp root $
# Copyright 2009, 2010, 2011, 2013, 2017, 2020, 2021, 2024  Eric Hameleers, Eindhoven, NL
# All rights reserved.
#
#   Permission to use, copy, modify, and distribute this software for
#   any purpose with or without fee is hereby granted, provided that
#   the above copyright notice and this permission notice appear in all
#   copies.
#
#   THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 AUTHORS AND COPYRIGHT HOLDERS AND THEIR
#   CONTRIBUTORS 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.
# -----------------------------------------------------------------------------
#
# Slackware SlackBuild script 
# ===========================
# By:         Eric Hameleers <alien@slackware.com>
# For:        x264
# Descr:      a free h264/avc encoder
# URL:        http://www.videolan.org/developers/x264.html
# Build needs:yasm
# Needs:      
# Changelog:  
# 20090518-1: 19/May/2009 by Eric Hameleers <alien@slackware.com>
#             * Initial build.
# 20100127-1: 28/Jan/2010 by Eric Hameleers <alien@slackware.com>
#             * Updated.
# 20100425-1: 26/apr/2010 by Eric Hameleers <alien@slackware.com>
#             * Updated. The encoder is now capable of producing Blu-Ray
#               compliant video!
# 20100530-1: 31/may/2010 by Eric Hameleers <alien@slackware.com>
#             * Updated for Slackware 13.1.
# 20110510-1: 11/may/2011 by Eric Hameleers <alien@slackware.com>
#             * Updated for Slackware 13.37.
# 20130524-1: 25/may/2013 by Eric Hameleers <alien@slackware.com>
#             * Updated for Slackware 14.
# 20170912-1: 13/sep/2017 by Eric Hameleers <alien@slackware.com>
#             * Updated for Slackware 14.2 and -current.
# 20180324-1: 05/oct/2020 by Eric Hameleers <alien@slackware.com>
#             * Updated for Slackware -current.
# 20211120-1: 29/dec/2021 by Eric Hameleers <alien@slackware.com>
#             * Updated for Slackware 15.0.
# 20240324-1: 05/oct/2020 by Eric Hameleers <alien@slackware.com>
#             * Updated for Slackware -current.
# 
# Run 'sh x264.SlackBuild' to build a Slackware package.
# The package (.txz) and .txt file as well as build logs are created in /tmp .
# Install it using 'installpkg'. 
#
# -----------------------------------------------------------------------------

PRGNAM=x264
VERSION=${VERSION:-20240324}
BUILD=${BUILD:-1}
NUMJOBS=${NUMJOBS:-" -j$(nproc) "}
TAG=${TAG:-alien}

DOCS="AUTHORS COPYING doc/*.txt"

# Where do we look for sources?
SRCDIR=$(cd $(dirname $0); pwd)

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

#SOURCE="$SRCDIR/${PRGNAM}-snapshot-${VERSION}-2245.tar.bz2"
#SRCURL="ftp://ftp.videolan.org/pub/videolan/${PRGNAM}/snapshots/${PRGNAM}-snapshot-${VERSION}-2245.tar.bz2"
SOURCE="$SRCDIR/${PRGNAM}-${VERSION}.tar.bz2"
SRCURL=""

# Use the src_checkout() function if no downloadable tarball exists.
# This function checks out sources from SVN/CVS and creates a tarball of them.
src_checkout() {
  # Param #1 : index in the SOURCE[] array.
  # Param #2 : full path to where SOURCE[$i] tarball should be created.
  # Determine the tarball extension:
  PEXT=$(echo "${2}" | sed -r -e 's/.*[^.].(tar.xz|tar.gz|tar.bz2|tgz).*/\1/')
  case "$PEXT" in
    "tar.xz") TARCOMP="J" ;;
    "tar.gz") TARCOMP="z" ;;
    "tgz") TARCOMP="z" ;;
    "tar.bz2") TARCOMP="j" ;;
    *) echo "Archive can only have extension 'tar.xz', '.tar.gz' '.tar.bz2' or '
.tgz'" ; exit 1 ;;
  esac
  case ${1} in
  0) # We clone the git of x264 at a certain date:
     mkdir x264-${VERSION} \
       && cd x264-${VERSION} \
       && git clone https://code.videolan.org/videolan/x264.git . \
       && git checkout $(git rev-list -n 1 --before="`date -d $VERSION`" master) \
       && chown -R root:root . \
       && cd .. \
       && tar --exclude .git -${TARCOMP}cf ${2} x264-${VERSION}
     rm -rf x264-${VERSION}
     ;;
  *) # Do nothing
     ;;
  esac
}
##
## --- with a little luck, you won't have to edit below this point --- ##
##

# Automatically determine the architecture we're building on:
if [ -z "$ARCH" ]; then
  case "$(uname -m)" in
    i?86) ARCH=i586 ;;
    arm*) readelf /usr/bin/file -A | egrep -q "Tag_CPU.*[4,5]" && ARCH=arm || ARCH=armv7hl ;;
    # Unless $ARCH is already set, use uname -m for all other archs:
    *) ARCH=$(uname -m) ;;
  esac
  export ARCH
fi

# Set CFLAGS/CXXFLAGS and LIBDIRSUFFIX:
case "$ARCH" in
  i?86)      SLKCFLAGS="-O2 -march=${ARCH} -mtune=i686"
             SLKLDFLAGS=""; LIBDIRSUFFIX=""
             ARCHOPTS=""
             ;;
  x86_64)    SLKCFLAGS="-O2 -fPIC"
             SLKLDFLAGS="-L/usr/lib64"; LIBDIRSUFFIX="64"
             ARCHOPTS="--enable-pic"
             ;;
  armv7hl)   SLKCFLAGS="-O2 -march=armv7-a -mfpu=vfpv3-d16"
             SLKLDFLAGS=""; LIBDIRSUFFIX=""
             ARCHOPTS="--enable-pic"
             ;;
  *)         SLKCFLAGS=${SLKCFLAGS:-"-O2"}
             SLKLDFLAGS=${SLKLDFLAGS:-""}; LIBDIRSUFFIX=${LIBDIRSUFFIX:-""}
             ARCHOPTS=""
             ;;
esac

case "$ARCH" in
    arm*)    TARGET=$ARCH-slackware-linux-gnueabi ;;
    *)       TARGET=$ARCH-slackware-linux ;;
esac


# 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}

# Save old umask and set to 0022:
_UMASK_=$(umask)
umask 0022

# Create working directories:
mkdir -p $OUTPUT          # place for the package to be saved
mkdir -p $TMP/tmp-$PRGNAM # location to build the source
mkdir -p $PKG             # place for the package to be built
rm -rf $PKG/*             # always erase old package's contents
rm -rf $TMP/tmp-$PRGNAM/* # remove the remnants of previous build
rm -rf $OUTPUT/{configure,make,install,error,makepkg}-$PRGNAM.log
                          # remove old log files

# Source file availability:
if ! [ -f ${SOURCE} ]; then
  echo "Source '$(basename ${SOURCE})' not available yet..."
  # Check if the $SRCDIR is writable at all - if not, download to $OUTPUT
  [ -w "$SRCDIR" ] || SOURCE="$OUTPUT/$(basename ${SOURCE})"
  if [ -f ${SOURCE} ]; then echo "Ah, found it!"; continue; fi
  if ! [ "x${SRCURL}" == "x" ]; then
    echo "Will download file to $(dirname $SOURCE)"
    wget --no-check-certificate -nv -T 20 -O "${SOURCE}" "${SRCURL}" || true
    if [ $? -ne 0 -o ! -s "${SOURCE}" ]; then
      echo "Fail to download '$(basename ${SOURCE})'. Aborting the build."
      mv -f "${SOURCE}" "${SOURCE}".FAIL
      exit 1
    fi
  else
    # Try if we have a SVN/CVS download routine for ${SOURCE}
    echo "Will checkout sources to $(dirname $SOURCE)"
    src_checkout 0 "${SOURCE}" 2>&1 > $OUTPUT/checkout-$(basename ${SOURCE}).log
  fi
  if [ ! -f "${SOURCE}" -o ! -s "${SOURCE}" ]; then
    echo "File '$(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
echo "Extracting the source archive(s) for $PRGNAM..."
tar -xvf ${SOURCE}
cd ${PRGNAM}-snapshot-${VERSION}* || cd ${PRGNAM}-${VERSION}
chown -R root:root .
chmod -R u+w,go+r-w,a+rX-st .

echo Building ...

LDFLAGS="$SLKLDFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
CFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --bit-depth=all \
  --chroma-format=all \
  --enable-shared \
  --enable-static \
  --enable-lto \
  --disable-avs \
  $ARCHOPTS \
  --host=$TARGET \
  2>&1 | tee $OUTPUT/configure-${PRGNAM}.log
make $NUMJOBS 2>&1 | tee $OUTPUT/make-${PRGNAM}.log

# Install all the needed stuff to the package dir
make DESTDIR=$PKG BASHCOMPLETIONSDIR=/usr/share/bash-completion/completions \
  install 2>&1 |tee $OUTPUT/install-${PRGNAM}.log

# Add documentation:
mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a $DOCS $PKG/usr/doc/$PRGNAM-$VERSION || true
cat $SRCDIR/$(basename $0) > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
chown -R root:root $PKG/usr/doc/$PRGNAM-$VERSION
find $PKG/usr/doc -type f -exec chmod 644 {} \;

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

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

# Add a package description:
mkdir -p $PKG/install
cat $SRCDIR/slack-desc > $PKG/install/slack-desc

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

# Restore the original umask:
umask ${_UMASK_}