#!/bin/sh
# $Id$
# Copyright 2017, 2018  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.
# -----------------------------------------------------------------------------
#
# Inspired by the mozilla-firefox.SlackBuild script written by
#   Patrick J. Volkerding, Sebeka, Minnesota, USA

#
# Slackware SlackBuild script 
# ===========================
# By:          Eric Hameleers <alien@slackware.com>
# For:         palemoon
# Descr:       firefox-based web browser with a focus on efficiency
# URL:         http://www.palemoon.org/
# Build needs: ffmpeg (Slackware <= 14.2)
#              gcc5 (Slackware > 14.2)
# Needs:       ffmpeg (Slackware > 14.2 already has ffmpeg)
# Changelog:   
# 27.3.0-1:    28/Apr/2017 by Eric Hameleers <alien@slackware.com>
#              * Initial build.
# 27.4.0-1:    12/jul/2017 by Eric Hameleers <alien@slackware.com>
#              * Update.
# 27.4.1-1:    06/aug/2017 by Eric Hameleers <alien@slackware.com>
#              * Update.
# 27.4.2-1:    23/aug/2017 by Eric Hameleers <alien@slackware.com>
#              * Update.
# 27.5.0-1:    30/sep/2017 by Eric Hameleers <alien@slackware.com>
#              * Update.
# 27.5.1-1:    11/oct/2017 by Eric Hameleers <alien@slackware.com>
#              * Update.
# 27.6.1-1:    20/nov/2017 by Eric Hameleers <alien@slackware.com>
#              * Update.
# 27.6.2-1:    07/dec/2017 by Eric Hameleers <alien@slackware.com>
#              * Update.
# 27.7.1-1:    18/jan/2018 by Eric Hameleers <alien@slackware.com>
#              * Update.
# 27.7.2-1:    02/feb/2018 by Eric Hameleers <alien@slackware.com>
#              * Update.
# 27.8.0-1:    04/mar/2018 by Eric Hameleers <alien@slackware.com>
#              * Update.
# 27.8.1-1:    06/mar/2018 by Eric Hameleers <alien@slackware.com>
#              * Bugfix release.
# 27.8.2-1:    27/mar/2018 by Eric Hameleers <alien@slackware.com>
#              * Security update.
# 27.8.3-1:    30/mar/2018 by Eric Hameleers <alien@slackware.com>
#              * Bugfix update.
# 27.8.3-2:    01/apr/2018 by Eric Hameleers <alien@slackware.com>
#              * Recompiled for slackware-current.
# 27.9.1-1:    08/may/2018 by Eric Hameleers <alien@slackware.com>
#              * Update.
# 27.9.2-1:    18/may/2018 by Eric Hameleers <alien@slackware.com>
#              * Update.
# 27.9.4-1:    31/jul/2018 by Eric Hameleers <alien@slackware.com>
#              * Update.
# 
# Run 'sh palemoon.SlackBuild' to build a Slackware package.
# The package (.t?z) and .txt file as well as build logs are created in /tmp .
# Install the package using 'installpkg' or 'upgradepkg --install-new'.
#
# -----------------------------------------------------------------------------

PRGNAM=palemoon
SRCNAM=Pale-Moon
VERSION=${VERSION:-27.9.4}
BUILD=${BUILD:-1}
NUMJOBS=${NUMJOBS:-"-j$(nproc)"}
TAG=${TAG:-alien}

DOCS="AUTHORS LICENSE README.md"

# Some characteristics of the resulting browser can be adjusted build-time.

# By default this build enables official 'Pale Moon' branding.  Permission
# was requested from, and granted by, the developer Moonchild.
# The unofficial 'New Moon' branding, required if you want to re-distribute
# unapproved self-compiled binaries, can be applied by setting
# the value of 'BRANDING' to '0':
BRANDING=${BRANDING:-1}
if [ $BRANDING -eq 1 ]; then
  DO_BRANDING="--enable-official-branding"
  SLDESC="official Pale Moon branding"
else
  DO_BRANDING="--disable-official-branding --with-branding=browser/branding/unofficial"
  SLDESC="unofficial New Moon branding"
fi

# The default optimization in the official bulds is "-O2 -msse2 -mfpmath=sse";
# However, I try to be more conservative than that.
# You can of course always opt for the official optimization by
# setting 'OPTIMIZE' to '1':
OPTIMIZE=${OPTIMIZE:-0}
if [ $OPTIMIZE -eq 1 ]; then
  DO_OPTIMIZE="-O2 -msse2 -mfpmath=sse"
else
  DO_OPTIMIZE="-Os"
fi

# By default this browser uses a GTK+-2 based GUI toolkit.
# If you prefer GTK+-3 instead, you should set 'GTK2' to '0':
GTK2=${GTK2:-1}
if [ $GTK2 -eq 1 ]; then
  DO_GUI="cairo-gtk2"
else
  DO_GUI="cairo-gtk3"
fi

# The devtools (in-built web developer tools such as debugging consoles,
# networking panel, js debugger, tilt, etc.) are included in this build
# by default, but you can exclude these by setting 'DEVTOOLS' to '0':
DEVTOOLS=${DEVTOOLS:-1}
if [ $DEVTOOLS -eq 1 ]; then
  DO_DEVTOOLS="--enable-devtools"
else
  DO_DEVTOOLS="--disable-devtools"
fi

# End build-time adjustments

# 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}

# This complex string occurs several times:
TOPDIR=$TMP/tmp-$PRGNAM/${SRCNAM}-${VERSION}_Release

SOURCE[0]="$SRCDIR/${SRCNAM}-${VERSION}_Release.tar.gz"
SRCURL[0]="https://github.com/MoonchildProductions/Pale-Moon/archive/${VERSION}_Release.tar.gz"

##
## --- 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 "$ARCH" in
  i?86)      SLKCFLAGS="-march=$ARCH -mtune=i686"
             SLKLDFLAGS="-Wl,--as-needed -latomic"; LIBDIRSUFFIX=""
             ;;
  x86_64)    SLKCFLAGS="-fPIC"
             SLKLDFLAGS="-L/usr/lib64"; LIBDIRSUFFIX="64"
             ;;
  armv7hl)   SLKCFLAGS="-march=armv7-a -mfpu=vfpv3-d16"
             SLKLDFLAGS=""; LIBDIRSUFFIX=""
             ;;
  *)         SLKCFLAGS=${SLKCFLAGS:-"-O2"}
             SLKLDFLAGS=${SLKLDFLAGS:-""}; LIBDIRSUFFIX=${LIBDIRSUFFIX:-""}
             ;;
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 $OUTPUT/{checkout,configure,make,install,error,makepkg,patch}-$PRGNAM.log
                          # remove old log files

# Source file availability:
for (( i = 0; i < ${#SOURCE[*]}; i++ )) ; do
  if ! [ -f ${SOURCE[$i]} ]; then
    echo "Source '$(basename ${SOURCE[$i]})' not available yet..."
    # Check if the $SRCDIR is writable at all - if not, download to $OUTPUT
    [ -w "$SRCDIR" ] || SOURCE[$i]="$OUTPUT/$(basename ${SOURCE[$i]})"
    if [ -f ${SOURCE[$i]} ]; then echo "Ah, found it!"; continue; fi
    if ! [ "x${SRCURL[$i]}" == "x" ]; then
      echo "Will download file to $(dirname $SOURCE[$i])"
      wget -nv -T 20 -O "${SOURCE[$i]}" "${SRCURL[$i]}" || true
      if [ $? -ne 0 -o ! -s "${SOURCE[$i]}" ]; then
        echo "Fail to download '$(basename ${SOURCE[$i]})'. Aborting the build."
        mv -f "${SOURCE[$i]}" "${SOURCE[$i]}".FAIL
        exit 1
      fi
    else
      echo "File '$(basename ${SOURCE[$i]})' not available. Aborting the build."
      exit 1
    fi
  fi
done

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

# --- PACKAGE BUILDING ---

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

cd $TMP/tmp-$PRGNAM

# We need to use the incredibly ancient autoconf-2.13 for this  :/
( cd $SRCDIR/autoconf ; TMP=$TMP/tmp-$PRGNAM ./autoconf.build )
PATH=$TMP/tmp-$PRGNAM/autoconf-tmp/usr/bin:$PATH

echo "Extracting the source archive(s) for $PRGNAM..."
  tar -xf ${SOURCE[0]}
cd ${TOPDIR}

# Make this compile with gcc7:
touch $OUTPUT/patch-${PRGNAM}.log
cat $SRCDIR/patches/palemoon_stl_mozalloc.patch | patch -p1 --verbose \
  2>&1 | tee -a $OUTPUT/patch-${PRGNAM}.log

# Fix a glibc-2.26 incompatibility:
sed -i 's#xlocale#locale#' ./intl/icu/source/i18n/digitlst.cpp

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

echo Building ...
# Without LANG=C, building the Python environment may fail with:
# "UnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position 36: ordinal not in range(128)"
export LANG=C

# Fix for 64bit Slackware:
sed -i xpcom/io/nsAppFileLocationProvider.cpp \
  -e "s#/usr/lib/mozilla/plugins#/usr/lib${LIBDIRSUFFIX}/mozilla/plugins#g"

export CFLAGS="$SLKCFLAGS"
export CXXFLAGS="$SLKCFLAGS -std=gnu++98"
export LDFLAGS="-lc $SLKLDFLAGS"
export MOZBUILD_STATE_PATH="$TOPDIR/mozbuild"
export MOZCONFIG="$TOPDIR/.mozconfig"
export MOZILLA_OFFICIAL=1
export MOZ_MAKE_FLAGS=$NUMJOBS
export PYTHON=/usr/bin/python2

# Our building options, in a configure-like display ;)
# Note: no spaces allowed in the options themselves.
OPTIONS="\
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --sysconfdir=/etc \
  --localstatedir=/var \
  --mandir=/usr/man \
  --enable-application=browser \
  --enable-chrome-format=omni \
  --enable-default-toolkit=${DO_GUI} \
  --enable-ffmpeg \
  --enable-jemalloc \
  --enable-release \
  --enable-shared-js \
  --enable-startup-notification \
  --enable-strip \
  --disable-installer \
  --disable-mochitests \
  --disable-debug \
  --disable-tests \
  --disable-updater \
  --with-pthreads \
  --with-system-icu \
  --with-default-mozilla-five-home=/usr/lib${LIBDIRSUFFIX}/palemoon-$VERSION \
  --x-libraries=/usr/lib${LIBDIRSUFFIX} \
  ${DO_BRANDING} \
  ${DO_DEVTOOLS} \
  "

# Things to be put into mozconfig:
# 1- Common environment flags as noted in mozilla/config/config.mk
# 2- Configure options as printed out by mozilla/configure --help
rm .mozconfig && touch .mozconfig
echo "mk_add_options MOZ_CO_PROJECT=browser" >> .mozconfig
echo "mk_add_options MOZ_OBJDIR=$TMP/tmp-$PRGNAM/pmbuild" >> .mozconfig
echo "ac_add_options --enable-optimize=\"${DO_OPTIMIZE}\"" >> .mozconfig

# Add our OPTIONS to the .mozconfig file:
for option in $OPTIONS; do
  echo "ac_add_options $option" >> .mozconfig
done

if ! pkg-config --exists libpulse; then
  echo "ac_add_options --disable-pulseaudio" >> .mozconfig
fi

# Mach requires Python2 to compile:
python2 mach build

# Install Pale Moon:
mkdir -p $PKG/usr/lib${LIBDIRSUFFIX}/mozilla/plugins
cd $TMP/tmp-$PRGNAM/pmbuild
make install DESTDIR=$PKG

# Remove duplicate unused binary:
rm -f $PKG/usr/lib${LIBDIRSUFFIX}/${PRGNAM}-${VERSION}/palemoon-bin

# Add Google search plugin:
install -m0644 $SRCDIR/google.xml \
  $PKG/usr/lib${LIBDIRSUFFIX}/${PRGNAM}-${VERSION}/browser/searchplugins/

# We do not want this in the package (just like with firefox):
rm -rf $PKG/usr/include

if [ $DEVTOOLS -eq 0 ]; then
  # Remove devtools if needed:
  rm -rf $PKG/usr/lib${LIBDIRSUFFIX}/${PRGNAM}-devel-${VERSION}
fi

# Install icons:
for PX in 16 32 48 ; do
  mkdir -p $PKG/usr/share/icons/hicolor/${PX}x${PX}/apps
  ln -s /usr/lib${LIBDIRSUFFIX}/palemoon-$VERSION/browser/chrome/icons/default/default${PX}.png $PKG/usr/share/icons/hicolor/${PX}x${PX}/apps/${PRGNAM}.png
done
# ... and the 128px icon file too:
mkdir -p $PKG/usr/share/icons/hicolor/128x128/apps
ln -s /usr/lib${LIBDIRSUFFIX}/palemoon-$VERSION/browser/icons/mozicon128.png $PKG/usr/share/icons/hicolor/128x128/apps/${PRGNAM}.png
# And one for old DE's:
mkdir -p $PKG/usr/share/pixmaps
ln -s /usr/lib${LIBDIRSUFFIX}/palemoon-$VERSION/browser/icons/mozicon128.png $PKG/usr/share/pixmaps/${PRGNAM}.png

# Install the .desktop file:
mkdir -p $PKG/usr/share/applications
install -m644 $TOPDIR/browser/branding/official/palemoon.desktop $PKG/usr/share/applications/$PRGNAM.desktop

# Add this to the doinst.sh:
mkdir -p $PKG/install
cat <<EOINS >> $PKG/install/doinst.sh
# Handle the incoming configuration files:
# Update the desktop database:
if [ -x usr/bin/update-desktop-database ]; then
  chroot . /usr/bin/update-desktop-database usr/share/applications > /dev/null 2>&1
fi

# Update hicolor theme cache:
if [ -d usr/share/icons/hicolor ]; then
  if [ -x /usr/bin/gtk-update-icon-cache ]; then
    chroot . /usr/bin/gtk-update-icon-cache -f -t usr/share/icons/hicolor 1> /dev/null 2> /dev/null
  fi
fi

# Update the mime database:
if [ -x usr/bin/update-mime-database ]; then
  chroot . /usr/bin/update-mime-database usr/share/mime >/dev/null 2>&1
fi

EOINS

# Add documentation:
cd $TOPDIR
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

# Add a package description and dependencies file:
mkdir -p $PKG/install
cat $SRCDIR/slack-desc \
  | sed -e "s/@BRANDING@/${SLDESC}/" \
  > $PKG/install/slack-desc
cat $SRCDIR/slack-required > $PKG/install/slack-required

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

# Restore the original umask:
umask ${_UMASK_}