#!/bin/bash

# Usage: ./update.sh <theora_src_directory>
#
# Copies the needed files from a directory containing the original
# libtheora source that we need for the Mozilla HTML5 media support.
#
# https://git.xiph.org/theora.git
# Run `autogen.sh` in the theora source clone prior to executing this script.

set -e

[[ -n "$1" ]] || ( echo "syntax: $0 update_src_directory"; exit 1 )
[[ -e "$1/include/theora/theora.h" ]] || ( echo "$1: cubeb not found"; exit 1 )

sed \
 -e s/\#define\ OC_X86_ASM//g \
 -e s/\#define\ OC_X86_64_ASM//g \
 -e s/\#define\ OC_ARM_ASM_EDSP\ 1//g \
 -e s/\#define\ OC_ARM_ASM_MEDIA\ 1//g \
 -e s/\#define\ OC_ARM_ASM_NEON\ 1//g \
 -e s/\#define\ OC_ARM_ASM//g \
 -e s/\#define\ THEORA_DISABLE_ENCODE//g \
 $1/config.h > lib/config.h

sed \
 -e s/@HAVE_ARM_ASM_EDSP@/1/g \
 -e s/@HAVE_ARM_ASM_MEDIA@/1/g \
 -e s/@HAVE_ARM_ASM_NEON@/1/g \
 $1/lib/arm/armopts.s.in > lib/arm/armopts.s

cp $1/LICENSE ./LICENSE
cp $1/CHANGES ./CHANGES
cp $1/COPYING ./COPYING
cp $1/README ./README
cp $1/AUTHORS ./AUTHORS
cp $1/lib/bitpack.c ./lib/
cp $1/lib/bitpack.h ./lib/
cp $1/lib/dct.h ./lib/
cp $1/lib/decinfo.c ./lib/
cp $1/lib/decint.h ./lib/
cp $1/lib/decode.c ./lib/
cp $1/lib/dequant.c ./lib/
cp $1/lib/dequant.h ./lib/
cp $1/lib/fragment.c ./lib/
cp $1/lib/huffdec.c ./lib/
cp $1/lib/huffdec.h ./lib/
cp $1/lib/huffman.h ./lib/
cp $1/lib/idct.c ./lib/
cp $1/lib/info.c ./lib/
cp $1/lib/internal.c ./lib/
cp $1/lib/internal.h ./lib/
cp $1/lib/mathops.h ./lib/
cp $1/lib/ocintrin.h ./lib/
cp $1/lib/quant.c ./lib/
cp $1/lib/quant.h ./lib/
cp $1/lib/state.c ./lib/
cp $1/lib/state.h ./lib/
cp $1/lib/arm/arm2gnu.pl ./lib/arm/
cp $1/lib/arm/armbits.h ./lib/arm/
cp $1/lib/arm/armbits.s ./lib/arm/
cp $1/lib/arm/armcpu.c ./lib/arm/
cp $1/lib/arm/armcpu.h ./lib/arm/
cp $1/lib/arm/armfrag.s ./lib/arm/
cp $1/lib/arm/armidct.s ./lib/arm/
cp $1/lib/arm/armint.h ./lib/arm/
cp $1/lib/arm/armloop.s ./lib/arm/
cp $1/lib/arm/armstate.c ./lib/arm/
cp $1/lib/x86/mmxfrag.c ./lib/x86/
cp $1/lib/x86/mmxidct.c ./lib/x86/
cp $1/lib/x86/mmxloop.h ./lib/x86/
cp $1/lib/x86/mmxstate.c ./lib/x86/
cp $1/lib/x86/sse2idct.c ./lib/x86/
cp $1/lib/x86/sse2trans.h ./lib/x86/
cp $1/lib/x86/x86cpu.c ./lib/x86/
cp $1/lib/x86/x86cpu.h ./lib/x86/
cp $1/lib/x86/x86int.h ./lib/x86/
cp $1/lib/x86/x86state.c ./lib/x86/
cp $1/lib/x86_vc/mmxfrag.c ./lib/x86_vc/
cp $1/lib/x86_vc/mmxidct.c ./lib/x86_vc/
cp $1/lib/x86_vc/mmxloop.h ./lib/x86_vc/
cp $1/lib/x86_vc/mmxstate.c ./lib/x86_vc/
cp $1/lib/x86_vc/x86cpu.c ./lib/x86_vc/
cp $1/lib/x86_vc/x86cpu.h ./lib/x86_vc/
cp $1/lib/x86_vc/x86int.h ./lib/x86_vc/
cp $1/lib/x86_vc/x86state.c ./lib/x86_vc/
cp $1/include/theora/theora.h ./include/theora/theora.h
cp $1/include/theora/theoradec.h ./include/theora/theoradec.h
cp $1/include/theora/theoraenc.h ./include/theora/theoraenc.h
cp $1/include/theora/codec.h ./include/theora/codec.h

if [ -d $1/.git ]; then
  rev=$(cd $1 && git rev-parse --verify HEAD)
  date=$(cd $1 && git show -s --format=%ci HEAD)
  dirty=$(cd $1 && git diff-index --name-only HEAD)
  set +e
  pre_rev=$(grep -o '[[:xdigit:]]\{40\}' moz.yaml)
  commits=$(cd $1 && git log --pretty=format:'%h - %s' $pre_rev..$rev)
  set -e
fi

if [ -n "$rev" ]; then
  version=$rev
  if [ -n "$dirty" ]; then
    version=$version-dirty
    echo "WARNING: updating from a dirty git repository."
  fi
  sed -i.bak -e "s/^ *release:.*/  release: \"$version ($date)\"/" moz.yaml
  if [[ ! "$( grep "$version" moz.yaml )" ]]; then
    echo "Updating moz.yaml failed."
    exit 1
  fi
  rm moz.yaml.bak
  [[ -n "$commits" ]] && echo -e "Pick commits:\n$commits"
else
  echo "Remember to update moz.yaml with the version details."
fi

patch -p3 < ./bug625773-r17780.patch
patch -p3 < ./bug468275-r18219.patch
patch -p3 < ./bug752139-r18031.patch
patch -p3 < ./bug752668-r18268.patch
patch -p3 < ./bug920992.patch