#!/bin/sh
# Make a snapshot for dolphin-emu from its git repo
# Optional argument: commit hash or tag

BRANCH=master
STABLE=5.0

if [ ! -e dolphin.git ]; then
    echo "=== Cloning Git repository ==="
    git clone http://github.com/dolphin-emu/dolphin.git dolphin.git
    pushd dolphin.git
else
    echo "=== Updating Git clone ==="
    pushd dolphin.git
fi

if [ $# == 0 ]; then
    rev="$BRANCH"
elif [ $# == 1 ]; then
    rev="$1"
fi

git checkout $rev
git pull --rebase
# The upstream dev snapshot version seems to be the number of commits
# since last stable tag
snapver="$STABLE.$(git rev-list $STABLE..HEAD | wc -l)"
echo -e "=== Exporting $rev revision, dev snapshot number $snapver ==="

dirname="dolphin-$snapver"
git checkout-index -a -f --prefix="../$dirname/"

echo "=== Unbundling unnecessary content ==="
popd && pushd $dirname
rm -rf .editorconfig .git* .mailmap .tx Source/.clang-format Source/Android Installer/dxredist Installer/vcredist
cd Externals
rm -rf curl enet ffmpeg gettext hidapi libiconv-1.14 libpng libusb LZO mbedtls miniupnpc \
       OpenAL pugixml Qt SFML XAudio2_7 zlib
# gtest // no more shared gtest, https://github.com/dolphin-emu/dolphin/commit/9ac94d01358808f9a90e472e44e8a0f6588bdec7
# soundtouch // patched upstream
# wxWidgets3 // needs 3.1+
popd

echo "=== Generating the tarball ==="
tar cvJf $dirname.tar.xz $dirname

rm -rf $dirname