#!/bin/sh
# This script is POSIX compliant and comes with no warranty.
# Tune it up or otherwise adjust as you see fit.
# By Sasha - Jan 22 2010
# My gcc used = 4.3.3
#
# PGO (Profile Guided Optimization) Firefox build
#  for 64bit Slackware 13.0
# Works for me with FF 3.6 (freshly released Jan 22/2010)
# Script based on Slackware 13/64 SlackBuild and other
# examples from here and there, including mozilla.org.
#
# This whole build is a multi-stage clobber-build
# which takes the better part of 1.5 hours, including
# time spent playing with the half-built browser half
# way through the build to generate profiling info.
#
# FF 3.6 build depends on libnotify from Galago and
# some junk from your Wireless Tools package (yes, wtf?!)
# BEGIN:
# First, see that we aren't root, because we _are_ going to
# fire up the new browser half-way through the build, to generate
# some profiling information. Don't wanna browse as root, and
# also, root is not allowed to connect to the X server by
# default, so the build will fail when the browser cannot be started.

echo "Checking UID and file ownership.."
if [ $(id -u) = 0 ]; then
 echo "You should not do this as root."
 echo "Please change to another UID before running this script."
 exit 1
else
# ensure everything is our UID:GID or quit
# (in case any of it is root owned)
 if [ "$(chown -R $(id -u):$(id -g) ./* 2>&1 >/dev/null)" ]; then
  echo "Stuff in here is not chownable to our UID:GID."
  echo "Please fix it and run this script again."
  exit 1
 fi;
fi;

# my favorite compiler optimizations:
#CFLAGS="-fPIC -O3 -Wall -pipe -march=native -mtune=native -fomit-frame-pointer"
#I read O2 is often faster. so...
CFLAGS="-fPIC -O2 -Wall -pipe -march=native -mtune=native -fomit-frame-pointer"
CXXFLAGS="${CFLAGS}"
CPPFLAGS="${CFLAGS} -I/usr/include"
MAKEFLAGS="-j4"

# FF apparently won't build properly with autoconf != 2.13 so
# in case this is still the case, I installed autoconf 2.13 in
# /usr/local/bin and this PATH makes it be found first, before
# my regular autoconf 2.6:
PATH=/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:.
export PATH CPPFLAGS CXXFLAGS CFLAGS MAKEFLAGS

CWD=$(pwd)                       # where am I now (start base dir)
TMP=$CWD/temp                    # a slackpkg will be constructed in here.
LIBDIR=lib64                     # slack64 libdir.
SRCDIR=$CWD/SOURCE               # FF source dir.
OBJDIR=$CWD/OBJDIR               # build dest dir.
PKGDIR=$CWD/PGO_FINISHED_PROD    # slack package or tarball ends up in here.
PROFIL=$CWD/_PROFILEPROFILE      # PGO profile folder
                                 #  (stick your places.sqlite in there if you want)
MOZAPP=browser                   # in mozconfig, which mozilla component to build
APP=firefox                      # self evident.
VERSION=17.0                     # self evident.
EXTENSION=en-US.linux            # FF tarball name includes this piece.
                                 #  but may change depending on your locale.
ARCH=x86_64                      # architecture.
BUILD=1mps                       #

PYTHON=/usr/bin/python

# Download all the parts here?

# make sure we have all the necessary pieces for
# creating a slackpackage, and the source archive too:
for i in firefox.png mimeTypes.rdf.gz firefox.moz_plugin_path.diff.gz \
         mozilla-firefox.desktop slack-desc $APP-$VERSION.source.tar.bz2; do
 if [ ! -f "$CWD/$i" ]; then
  echo "Error: $CWD/$i missing. Get it somewhere and try again."
  exit 1
 fi;
done

# clean away old build dirs and make fresh ones:
rm -Rf $SRCDIR $OBJDIR $TMP $PKGDIR
mkdir -p $SRCDIR $OBJDIR $PROFIL $TMP $PKGDIR

# run-script.sh ##################################################
# create the app startup script for profile generation:
cat << EOF > run-$APP.sh
#!/bin/sh
NO_EM_RESTART=1
DISPLAY=:0.0 
export NO_EM_RESTART DISPLAY
$OBJDIR/dist/bin/$APP -no-remote -profile $PROFIL

EOF
chmod a+x run-$APP.sh
# /run-script.sh ##################################################

# extract the FF source tar.bz2 into $SRCDIR..
echo "Extracting source.."
cd $SRCDIR
tar xvf $CWD/$APP-$VERSION.source.tar.bz2 || exit 1
sync
SRCDIR=$(pwd)/$(ls)
cd $SRCDIR || exit 1

#/usr/local/bin/autoreconf || exit 1

# Enable x86_64 Tracemonkey Support
# FIXME: deprecated? there is no ENABLE_JIT anymore...
#patch $SRCDIR/js/src/configure.in < $CWD/enable-x86_64-tracemonkey.patch || exit 1

# Pat Volkerding says:
# 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

# mozconfig #######################################################
# and create our mozconfig in $SRCDIR:
cat << EOF > mozconfig

# FF PGO-build mozconfig file
# option to say use objdir (build dir):
mk_add_options MOZ_OBJDIR=$OBJDIR

# startup script, for generating profile info for optimize:
#mk_add_options PROFILE_GEN_SCRIPT=$CWD/run-$APP.sh

# Automated script; comment this and uncomment the above for a manual script
mk_add_options PROFILE_GEN_SCRIPT='${PYTHON} ${OBJDIR}/_profile/pgo/profileserver.py'

# which mozilla app to build:
ac_add_options --enable-application=$MOZAPP

########################################: Stuff that always worked:
###################### (mostly) stuff from the -current slackbuild:
ac_add_options --enable-official-branding
ac_add_options --prefix=/usr --libdir=/usr/$LIBDIR
ac_add_options --host="x86_64-slackware-linux-gnu"
ac_add_options --with-default-mozilla-five-home=/usr/$LIBDIR/$APP-$VERSION
ac_add_options --with-system-zlib
ac_add_options --enable-default-toolkit=cairo-gtk2
ac_add_options --enable-crypto
ac_add_options --enable-svg
ac_add_options --enable-canvas
ac_add_options --enable-xft
ac_add_options --enable-webm 
ac_add_options --enable-xinerama
ac_add_options --enable-optimize="-fPIC -O2 -Wall -pipe -march=native -mtune=native -fomit-frame-pointer" #not needed? cflags etc? was Os...?hmm
ac_add_options --enable-reorder
ac_add_options --enable-strip
#ac_add_options --enable-system-cairo          #breaks build (https://bugzilla.mozilla.org/show_bug.cgi?id=722975) 
ac_add_options --enable-cpp-rtti
ac_add_options --enable-single-profile
ac_add_options --disable-ldap
ac_add_options --disable-accessibility
ac_add_options --disable-debug
ac_add_options --disable-tests
ac_add_options --disable-logging
ac_add_options --disable-pedantic
ac_add_options --disable-installer
ac_add_options --disable-mailnews
ac_add_options --disable-composer
ac_add_options --disable-profilesharing
# End official slackbuild opts
########################################: stuff I'm 98% sure always works:
ac_add_options --with-gxx-include-dir=/usr/include/c++/4.7.1
ac_add_options --quiet
ac_add_options --with-system-bz2 
ac_add_options --with-pthreads
ac_add_options --enable-threads=posix
ac_add_options --enable-system-lcms
ac_add_options --disable-system-sqlite          #enable breaks build in packaging state...
ac_add_options --enable-pango 
ac_add_options --enable-install-strip
ac_add_options --disable-updater
ac_add_options --disable-gnomeui
ac_add_options --disable-gnomevfs
########################################: stuff I'm 95% sure works fine:
#ac_add_options --enable-libxul
#ac_add_options --with-system-jpeg               
#ac_add_options --with-system-nssac_add_options
ac_add_options --disable-crashreporter
ac_add_options --disable-help-viewer
ac_add_options --disable-debug-modules
ac_add_options --disable-debugger-info-modules
ac_add_options --disable-parental-controls
ac_add_options --disable-safe-browsing
ac_add_options --disable-startup-notification
########################################: Completely Experimental below..
########################################: Questionable/Optional stuff
########################################: that may, or just may not work:
#ac_add_options --enable-javaxpcom
#ac_add_options --enable-oji
#ac_add_options --enable-xpcom-fastload
#ac_add_options --enable-plugins
#ac_add_options --enable-jemalloc
#ac_add_options --enable-mathml
#ac_add_options --disable-xpcom-obsolete
#ac_add_options --enable-svg-foreignobject
# ac_add_options --enable-chrome-format=jar
# ac_add_options --enable-native-uconv # not needed/not recommended
# ac_add_options --enable-image-encoders=all # should not need
# ac_add_options --enable-update-channel=release # needed by moz.org people only?
# ac_add_options --enable-prebinding # OSX only?
# ac_add_options --enable-reflow-perf # try without.. may slow down FF for non-devel user?
ac_add_options --enable-glitz # this thing won't install into lib64
# END of mozconfig file

EOF
# /mozconfig #######################################################

# configure the sources:
cd $OBJDIR
echo ; echo "Info: Running configure in 5" ; sleep 5
$SRCDIR/configure || exit 1

# make the sources:
cd $SRCDIR
#disabled because would not produce a real pgo build!
#see bottom: https://groups.google.com/forum/?fromgroups=#!topic/mozilla.dev.builds/VeR2zDtQ0qM
#echo ; echo "Info: Starting non-PGO build in 5" ; sleep 5
#make -s -f client.mk build MOZ_MAKE_FLAGS="${MAKEFLAGS}" || exit 1

# make PGO build in same objdir, on top of what's already built:
#echo ; echo "Info: Done non-PGO build... Continuing in 5" ; sleep 5
make -s -f client.mk profiledbuild MOZ_MAKE_FLAGS="${MAKEFLAGS}" || exit 1

# Here is when the profiling build should fire up. Use it for a while,
# do some browsing, give it a hard time; sometimes a bad build will
# run for 5, 10 or 15 minutes until it hits a snag, bug, segfault
# or whatever, so you want to make it happen NOW, not when you've
# got 25 tabs open tomorrow and the whole thing locks up on you.
# When you're done, and confident that the browser is stable,
# click File->Quit and the build will resume.

# OPTIONS HERE (functions):

make_tarball () {
# make tarball: This makes a generic tarball of the newly
# compiled Firefox and related components, and zips it up
# into a bzip2 archive. You can then do what you like with
# it, such as install it manually, or just unpack it somewhere
# and use it as-is.
# Package it into a tarball to fix symlinks & gather all pieces:
( cd $OBJDIR
  echo ; echo "Info: Packaging tarball in 5" ; sleep 5
  make package ) || exit 1
#move tarball to $CWD (start directory)
( cd $PKGDIR
  cp -fvt . $OBJDIR/dist/$APP-$VERSION.$EXTENSION-$ARCH.tar.bz2
) || exit 1

cd $CWD
# Now do what you want with the finished tarball in $PKGDIR.
}

# 2) make slackpkg:
make_slackpkg () {
# make a slackware package according to the general idea
# of what happens in the Slack13.0/64 SlackBuild script:
( cd $OBJDIR
  echo ; echo "Info: Creating slackpkg dir structure in 5" ; sleep 5
  make install DESTDIR=$TMP
  # We don't need these things:
  rm -Rf $TMP/usr/$LIBDIR/$APP-devel-$VERSION
  rm -Rf $TMP/usr/include
)

#useless
#fails mimeTypes, plugin_path useless since 7.x
#( cd $TMP/usr/$LIBDIR/$APP-$VERSION
#  zcat $CWD/mimeTypes.rdf > defaults/profile/mimeTypes.rdf || exit 1
#  zcat $CWD/firefox.moz_plugin_path.diff.gz \
#    | sed -e "s#usr/lib#usr/$LIBDIR#g" \
#    | patch -p1 --verbose --backup --suffix=.orig || exit 1
#  # Clean up if the above patch was successful:
#  # On my system, that patch is successful, but a bit fuzzy :/
#  rm -f firefox.orig
#) || exit 1

mkdir -p $TMP/usr/$LIBDIR/mozilla/plugins
mkdir -p $TMP/usr/share/applications
cat $CWD/mozilla-$APP.desktop > $TMP/usr/share/applications/mozilla-$APP.desktop
mkdir -p $TMP/usr/share/pixmaps
cat $CWD/$APP.png > $TMP/usr/share/pixmaps/$APP.png

# These files/directories are usually created if Firefox is run
# as root which technically should be never. Anyhow, if we don't
# see these items, put stubbies in place (whatever those are) to
# prevent startup errors:
( cd $TMP/usr/$LIBDIR/$APP-$VERSION
  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
)

# Install icons/imgs/license/slack-desc:
mkdir -p $TMP/usr/$LIBDIR/$APP-$VERSION/chrome/icons/default
install -m 644 $SRCDIR/browser/branding/official/default16.png $TMP/usr/$LIBDIR/$APP-$VERSION/icons/
install -m 644 $SRCDIR/browser/branding/official/default16.png $TMP/usr/$LIBDIR/$APP-$VERSION/chrome/icons/default/
install -p -c -m 644 $SRCDIR/LICENSE $TMP/usr/$LIBDIR/$APP-$VERSION/
mkdir $TMP/install
cat $CWD/slack-desc > $TMP/install/slack-desc

if [ -e $TMP/usr/share/idl/$APP-$VERSION/.mkdir.done ]; then
        rm -f $TMP/usr/share/idl/$APP-$VERSION/.mkdir.done
fi

cd $TMP
# whip up the Slackpackage:
echo "Ready to zip up the slackpkg."
echo "1) su to root."
echo "2) Make sure you are in this folder: $TMP"
echo "3) Now, as root, type:"
echo "chown -R root:root ."
echo "makepkg -l y -c y $PKGDIR/mozilla-$APP-$VERSION-$ARCH-$BUILD.txz"
} # end of make_slackpkg()

#NOTE: Below here, uncomment whichever function-call you
# plan to use: either "make_slackpkg" or "make_tarball"
# You can probably do both if you have some reason to do so..

#make_tarball
make_slackpkg

#EOF