#!/bin/bash

# ==============================================================
#
# Bash script to build a statically linked version of opus-tools based on:
# https://gist.github.com/guest271314/12a93ff775590867c0862be45fc71161
#
# Repos:
# https://gitlab.xiph.org/xiph/ogg.git
# https://gitlab.xiph.org/xiph/flac.git
# https://gitlab.xiph.org/xiph/opus.git
# https://gitlab.xiph.org/xiph/libopusenc.git
# https://gitlab.xiph.org/xiph/opusfile.git
# https://gitlab.xiph.org/xiph/opus-tools.git
#
# Build deps: autoconf automake libtool pkg-config git
#
# ==============================================================

export BUILD_DIR="$(pwd)/build"
export PKG_CONFIG_PATH="$BUILD_DIR/lib/pkgconfig"
XIPH=https://gitlab.xiph.org/xiph/
LIBS=(ogg flac opus libopusenc opusfile opus-tools)

echo 'Cloning git repositories...'
for repo in "${LIBS[@]}"
  do
    git clone --depth 1 "$XIPH$repo.git"
  done

mkdir -p "$BUILD_DIR"

echo 'Building libogg...'
cd "${LIBS[0]}" || exit
./autogen.sh
./configure --prefix="$BUILD_DIR" \
  --disable-shared --enable-static \
  --disable-maintainer-mode
make clean
make -j "$(nproc)" install
cd ..

echo 'Building FLAC...'
cd "${LIBS[1]}" || exit
./autogen.sh
./configure --prefix="$BUILD_DIR" \
  --disable-shared --enable-static \
  --disable-debug \
  --disable-oggtest \
  --disable-cpplibs \
  --disable-xmms-plugin \
  --disable-doxygen-docs \
  --disable-examples
make clean
make -j "$(nproc)" install
cd ..

echo 'Building Opus...'
cd "${LIBS[2]}" || exit
./autogen.sh
./configure --prefix="$BUILD_DIR" \
  --disable-shared --enable-static \
  --disable-maintainer-mode \
  --disable-doc \
  --disable-extra-programs
make clean
make -j "$(nproc)" install
# Hack
sed -i 's/Version: unknown/Version: 1.3.1/' "$PKG_CONFIG_PATH/opus.pc"
cd ..

echo 'Building libopusenc...'
cd "${LIBS[3]}" || exit
./autogen.sh
./configure --prefix="$BUILD_DIR" \
  --disable-shared --enable-static \
  --disable-maintainer-mode \
  --disable-examples \
  --disable-doc
make clean
make -j "$(nproc)" install
# Hack
sed -i 's/Version: unknown/Version: 0.2.1/' "$PKG_CONFIG_PATH/libopusenc.pc"
cd ..

echo 'Building opusfile...'
cd "${LIBS[4]}" || exit
./autogen.sh
./configure --prefix="$BUILD_DIR" \
  --disable-shared --enable-static \
  --disable-maintainer-mode \
  --disable-examples \
  --disable-doc \
  --disable-http
make clean
make -j "$(nproc)" install
# Hack
sed -i 's/Version: unknown/Version: 0.12/' "$PKG_CONFIG_PATH/opusfile.pc"
sed -i 's/Version: unknown/Version: 0.12/' "$PKG_CONFIG_PATH/opusurl.pc"
cd ..

echo 'Building opus-tools...'
cd "${LIBS[5]}" || exit
./autogen.sh
./configure --prefix="$BUILD_DIR" \
  --disable-shared --enable-static \
  --disable-maintainer-mode
make clean
make -j "$(nproc)" install || exit
cd ..

for file in "$BUILD_DIR"/bin/opus*
  do
    cp "$file" "$PWD/$(basename "$file")-static"
    strip --strip-debug "$PWD/$(basename "$file")-static"
  done