#!/bin/bash

# mozilla-firefox.SlackBuild
# by Stuart Winter
# Based on Unbranded 'Firefox' build script from Slackware 13.
# 03-April-2009

# Record toolchain & other info for the build log:
slackbuildinfo

# Paths to skeleton port's source & real Slackware source tree:
export CWD=$SLACKSOURCE/$PKGSERIES/$PKGNAM
export PORTCWD=$PWD

# Major version number - needed for /usr/lib/firefox dir:
MAJORVER=$VERSION
MOZVERS=${MOZVERS:-release}
RELEASEVER=$(echo $VERSION | cut -f 1 -d r)

# With esr releases we need to fix this
if [ "${RELEASEVER}r" = "$VERSION" ]; then
  RELEASEVER=$(echo $RELEASEVER | cut -f 1 -d e)
  RELEASEVERMAJ=$(echo $RELEASEVER | cut -f 1 -d .)
fi

# Temporary build locations:
export TMPBUILD=$TMP/build-$PKGNAM
export PKG=$TMP/package-$PKGNAM
mkpkgdirs # Delete & re-create temporary directories then cd into $TMPBUILD

# Determine the CFLAGS for the known architectures:
case $ARCH in
   arm)     export SLKCFLAGS="-D__ARM_PCS -march=armv5te" ## -O2 
            export LDFLAGS="-Wl,--no-as-needed -Wl,--no-keep-memory -Wl,--reduce-memory-overheads"
            # The little hacks section:
            # Firefox 17.0 adds webrtc but it does not work on ARM
            SLKCONFARGS="--disable-webrtc"
            # Anything < armv7l needs:
            SLKCONFARGS="$SLKCONFARGS --disable-tracejit \
                         --disable-neon \
                         --disable-methodjit \
                         --with-arch=armv5te"
            # Other options that make sense:
#                    --with-system-libvpx=/tmp/pkg-libvpx \
            export SLKCONFARGS="$SLKCONFARGS \
                    --with-float-abi=soft \
                    --disable-elf-dynstr-gc \
                    --disable-mochitest \
                    --disable-javaxpcom \
                    --disable-long-long-warning \
                    --disable-pedantic \
                    --disable-crashreporter \
                    --disable-elf-hack \
                    --enable-mathml \
                    --enable-gio \
                    --disable-strip \
                    --disable-install-strip \
                    --enable-system-ffi \
                    --host=$ARCH-slackware-linux-gnueabi \
                    --target=$ARCH-slackware-linux-gnueabi" 

            export LIBDIRSUFFIX="" ;;
   *)       export SLKCFLAGS="-O2" ;;
esac


# Use PGO?  Doubles the time and drive space requirements for the build,
# but should provide a performance increase.  How much depends on which
# benchmarks you believe, but I've typically seen around 2.5%.  I've also
# seen some which say it can be negligably (a fraction of a percent) slower
# with this enganged.  The anecdotal reports usually say there's a noticable
# improvement in overall responsiveness.  Seems like a good bet if you have
# the time and your system is able to handle it.  Set the variable to
# anything else prior to the build to compile Firefox in less time (but
# without the possible benefits of Profile-Guided Optimization).
if [ "$ARCH" = "x86_64" ]; then
  PGO=${PGO:-yes}
else
  # 32-bit systems have problems compiling with PGO, as the per-process
  # memory requirements are too large.  Possibly compiling with a 64-bit
  # kernel could be a workaround for this, but for now we will default to
  # using PGO only for x86_64.
  PGO=${PGO:-no}
fi

# If not specified, figure out if this is a beta, an esr
# or a release (we start assuming this last):
MOZVERS=${MOZVERS:-release}
if echo $VERSION | grep -q b ; then # we think it is a beta
  if bzgrep -q ^mozilla-beta/ $CWD/firefox-$VERSION.source.tar.bz2 ; then
    MOZVERS=beta
  fi
elif echo $VERSION | grep -q esr ; then # we think it is an esr
  if bzgrep -q ^mozilla-esr$RELEASEVERMAJ/ $CWD/firefox-$VERSION.source.tar.bz2 ; then
    MOZVERS=esr$RELEASEVERMAJ
  fi
fi

# Extract source:
echo "Extracting source"
tar xf $CWD/firefox-$VERSION*source*tar.bz2
#tar xf $PORTCWD/sources/firefox-$VERSION*source*tar*
cd mozilla* || exit 1 
slackhousekeeping

# Allow building for <armv7.  These are taken from OpenSUSE's SRPM.
auto_apply_patch $PORTCWD/sources/mozilla-arm-disable-edsp.patch.xz || exit 1
auto_apply_patch $PORTCWD/sources/mozilla-disable-neon-option.patch.xz || exit 1

# Apply patches from Gentoo:
#mkdir patches
#tar xvvf $PORTCWD/sources/firefox*patches* -C patches/
#for i in \
#  ; do
#  auto_apply_patch patches/firefox/$i || failpatch
#done

# Apply patches from Debian's patch set:
#tar xf $PORTCWD/sources/iceweasel*debian*xz -C.
#rm -f debian/patches/porting/Allow-ipc-code-to-build-on-GNU-Hurd.patch
#for pf in \
##  debian/patches/configure.patch \
#  debian/patches/fixes/* \
#  debian/patches/porting/* \
#  ; do auto_apply_patch $pf || exit 1
#done
#auto_apply_patch $PORTCWD/sources/no_neon_on_arm.patch.xz || exit 1

# Fix a long standing bug that's prevented staying current on GTK+.
# Thanks to the BLFS folks.  :-)
cat << EOF >> layout/build/Makefile.in

ifdef MOZ_ENABLE_CANVAS
EXTRA_DSO_LDOPTS += \$(XLDFLAGS) -lX11 -lXrender
endif

EOF

if gcc --version | grep -q "gcc (GCC) 4.7.0" ; then
 # Enable compiling with gcc-4.7.0:
 sed -i '/fcntl.h/a#include <unistd.h>' \
   ipc/chromium/src/base/{file_util_linux,message_pump_libevent,process_util_posix}.cc &&
 sed -i '/sys\/time\.h/a#include <unistd.h>' ipc/chromium/src/base/time_posix.cc &&
 sed -i 's#\"PRIxPTR#\" PRIxPTR#' layout/base/tests/TestPoisonArea.cpp &&
 sed -i 's# ""##' browser/base/Makefile.in
fi

# Configure:
# Need to re-generate because of the 'no neon' patch:
# We also need to use autoconf-2.13 (in /extra).
autoconf || failconfig

# Turn errors back into warnings:
sed -i 's?-Werror?-Wall?g' configure
# Our building options, in a configure-like display ;)
OPTIONS="\
  $SLKCONFARGS \
  --enable-official-branding \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --with-default-mozilla-five-home=/usr/lib${LIBDIRSUFFIX}/firefox-$RELEASEVER \
  --with-system-zlib \
  --enable-application=browser \
  --enable-default-toolkit=cairo-gtk2 \
  --enable-startup-notification \
  --enable-crypto \
  --enable-svg \
  --enable-canvas \
  --enable-logging \
  --enable-webm \
  --enable-xft \
  --enable-xinerama \
  --enable-reorder \
  --enable-strip \
  --enable-cpp-rtti \
  --enable-single-profile \
  --disable-gnomevfs \
  --disable-ldap \
  --disable-accessibility \
  --disable-debug \
  --disable-tests \
  --disable-pedantic \
  --disable-installer \
  --disable-mailnews \
  --disable-composer \
  --disable-profilesharing"
  # Complains about missing APNG support in Slackware's libpng:
  #--with-system-png \

  # won't build:
  #--enable-system-cairo \

# Build:
export MOZILLA_OFFICIAL="1"
export BUILD_OFFICIAL="1"
export MOZ_PHOENIX="1"
export CFLAGS="$SLKCFLAGS"
export CXXFLAGS="$SLKCFLAGS"
export MOZ_MAKE_FLAGS="$NUMJOBS"
# Force build tests to run as armv4 even though the build box might be >armv5.
export ARM_FORCE_PLATFORM=5

# Clear some variables that could break the build
unset DBUS_SESSION_BUS_ADDRESS ORBIT_SOCKETDIR SESSION_MANAGER \
  XDG_SESSION_COOKIE XAUTHORITY MAKEFLAGS

# Assemble our .mozconfig, we use this method for building, seems
# needed for PGO.
echo ". \$topsrcdir/browser/config/mozconfig" > .mozconfig

# Mozilla devs enforce using an objdir for building
# https://developer.mozilla.org/en/Configuring_Build_Options#Building_with_an_objdir
mkdir obj
echo "mk_add_options MOZ_OBJDIR=@TOPSRCDIR@/obj" >> .mozconfig

# Write in it the options above
for option in $OPTIONS; do echo "ac_add_options $option" >> .mozconfig; done
# https://developer.mozilla.org/en-US/docs/Building_with_Profile-Guided_Optimization
# Thanks to ArchLinux and Gentoo for the additional hints.
if [ "$PGO" = "yes" ]; then
  # Do a PGO build, double time and disk space but worth it.
  export MOZ_PGO=1
  echo "mk_add_options PROFILE_GEN_SCRIPT='\$(PYTHON) \$(MOZ_OBJDIR)/_profile/pgo/profileserver.py 10'" >> .mozconfig
  export DISPLAY=:99
  # Launch Xvfb to let the profile scripts run in a X session.
  # Ugly note: if the build breaks you may want to do a "killall Xvfb".
  Xvfb -nolisten tcp -extension GLX -screen 0 1280x1024x24 $DISPLAY &
  dbus-launch --exit-with-session make -f client.mk build || exit 1
  kill $! || true
else
  # Do a normal build
  make -f client.mk build || exit 1
fi

# Install into package framework:
make -f client.mk install DESTDIR=$PKG || exit 1

# We don't need these (just symlinks anyway):
rm -rf $PKG/usr/lib${LIBDIRSUFFIX}/firefox-devel-$RELEASEVER

# Nor these:
rm -rf $PKG/usr/include

( cd $PKG/usr/lib${LIBDIRSUFFIX}/firefox-$RELEASEVER
  #mv defaults/profile/mimeTypes.rdf defaults/profile/mimeTypes.rdf.orig || exit 1
  if [ -d defaults/profile ]; then
    zcat $CWD/mimeTypes.rdf > defaults/profile/mimeTypes.rdf || exit 1
  fi
  # OK, this patch is useless on 7.x.  We'll float without it and see what happens.
  # Perhaps it won't make a difference or should be worked around elsewhere.
  #zcat $CWD/firefox.moz_plugin_path.diff.gz \
  #  | sed -e "s#usr/lib#usr/lib${LIBDIRSUFFIX}#g" \
  #  | patch -p1 --verbose --backup --suffix=.orig || exit 1
  # Clean up if the above patch was successful:
  #rm -f firefox.orig
) || exit

mkdir -p $PKG/usr/lib${LIBDIRSUFFIX}/mozilla/plugins
mkdir -p $PKG/usr/share/applications
cat $CWD/mozilla-firefox.desktop > $PKG/usr/share/applications/mozilla-firefox.desktop

# These files/directories are usually created if Firefox is run as root,
# which on many systems might (and possibly should) be never.  Therefore, if we
# don't see them we'll put stubs in place to prevent startup errors.
( cd $PKG/usr/lib${LIBDIRSUFFIX}/firefox-$RELEASEVER
  if [ -d extensions/talkback\@mozilla.org ]; then
    if [ ! -r extensions/talkback\@mozilla.org/chrome.manifest ]; then
      echo > extensions/talkback\@mozilla.org/chrome.manifest
    fi
  fi
  if [ ! -d updates ]; then
    mkdir -p updates/0
  fi
)

# Need some default icons in the right place:
for i in 16 22 24 32 48 256; do
  install -m 0644 -D browser/branding/official/default${i}.png \
    $PKG/usr/share/icons/hicolor/${i}x${i}/apps/firefox.png
done
mkdir -p $PKG/usr/lib$LIBDIRSUFFIX/firefox-$RELEASEVER/chrome/icons/default
install -m 644 browser/branding/official/default16.png \
  $PKG/usr/lib$LIBDIRSUFFIX/firefox-$RELEASEVER/icons/
install -m 644 browser/branding/official/default16.png \
  $PKG/usr/lib$LIBDIRSUFFIX/firefox-$RELEASEVER/chrome/icons/default/

# Copy over the LICENSE
install -p -c -m 644 LICENSE $PKG/usr/lib${LIBDIRSUFFIX}/firefox-$RELEASEVER/

# If necessary, start the fakeroot server so we can set file/dir ownerships:
start_fakeroot

# Apply generic Slackware packaging policies:
cd $PKG
slackstripall   # strip all .a archives and all ELFs
slackgzpages -i # compress man & info pages and delete usr/info/dir
slackslack      # chown -R root:root, chmod -R og-w, slackchown, slack644docs
slackdesc       # install slack-desc and doinst.sh

# Change the architecture of the package name since Firefox 10 and upwards
# do not support armv5:
# The 'hfp' name means that it's 'hardware floating point':
export SLACKPACKAGE=$PKGNAM-$VERSION-armhfp-$BUILD.tgz

slackmp         # run makepkg -l y -c n

# Perform any final checks on the package:
cd $PKG

slackhlinks     # search for any hard links