#!/bin/sh

# This Source Code Form is subject to the terms of the Mozilla Public

# License, v. 2.0. If a copy of the MPL was not distributed with this

# file, You can obtain one at http://mozilla.org/MPL/2.0/.

#

# Usage: ./update.sh <opus_src_directory>

#

# Copies the needed files from a directory containing the original

# libopus source, and applies any local patches we're carrying.

TARGET='.'

STATIC_FILES="COPYING celt/arm/arm2gnu.pl"

MK_FILES="opus_sources.mk celt_sources.mk silk_sources.mk \

          opus_headers.mk celt_headers.mk silk_headers.mk"

# Make sure we have a source directory

if test -z $1 || ! test -r $1/include/opus.h; then

  echo "Update the current directory from a source checkout"

  echo "usage: $0 ../opus"

  exit 1

fi

# "parse" the makefile fragments to get the list of source files

# requires GNU sed extensions

SRC_FILES=$(sed -e ':a;N;$!ba;s/#[^\n]*\(\n\)/\1/g;s/\\\n//g;s/[A-Z0-9_]*[ \t]*=[ \t]*//g' \

             $(for file in ${MK_FILES}; do echo "$1/${file}"; done))

# pre-release versions of the code don't list opus_custom.h

# in celt_headers.mk, so we must include it manually

HDR_FILES="include/opus_custom.h"

# make sure the necessary subdirectories exist

for file in ${SRC_FILES}; do

  base=${file##*/}

  dir="${file%"${base}"}"

  if test ! -d "${TARGET}/${dir}"; then

    cmd="mkdir -p ${TARGET}/${dir}"

    echo ${cmd}

    ${cmd}

  fi

done

# copy files into the target directory

for file in ${STATIC_FILES} ${SRC_FILES} ${HDR_FILES}; do

  cmd="cp $1/${file} ${TARGET}/${file}"

  echo ${cmd}

  ${cmd}

done

sed \

 -e s/@OPUS_ARM_MAY_HAVE_EDSP@/1/g \

 -e s/@OPUS_ARM_MAY_HAVE_MEDIA@/1/g \

 -e s/@OPUS_ARM_MAY_HAVE_NEON@/1/g \

 $1/celt/arm/armopts.s.in > ${TARGET}/celt/arm/armopts.s

# query git for the revision we're copying from

if test -d $1/.git; then

  version=$(cd $1 && git describe --tags --match 'v*' --dirty)

else

  version="UNKNOWN"

fi

echo "copied from revision ${version}"

# update README revision

sed -e "s/^The git tag\/revision used was .*/The git tag\/revision used was ${version}./" \

    ${TARGET}/README_MOZILLA > ${TARGET}/README_MOZILLA+ && \

    mv ${TARGET}/README_MOZILLA+ ${TARGET}/README_MOZILLA

# update compiled-in version string

sed -e "s/DEFINES\['OPUS_VERSION'\][ \t]*=[ \t]*'\".*\"'/DEFINES['OPUS_VERSION'] = '\"${version}-mozilla\"'/" \

    ${TARGET}/moz.build > ${TARGET}/moz.build+ && \

    mv ${TARGET}/moz.build+ ${TARGET}/moz.build

python gen-sources.py $1

# apply outstanding local patches

patch -p3 < nonunified.patch