osu-asahi.sh

#!/bin/bash
set -e

OSU_GIT="https://github.com/ppy/osu"
OSU_GIT_BRANCH="2024.906.2" # Replace with the latest version
BASS_URL="https://www.un4seen.com/files/bass24-linux.zip"
BASS_FX_URL="https://www.un4seen.com/files/z/0/bass_fx24-linux.zip"
BASSMIX_URL="https://www.un4seen.com/files/bassmix24-linux.zip"
VELDRID_SPIRV_GIT="https://github.com/veldrid/veldrid-spirv.git"

error() {
    echo -e "\033[0;31mERROR: $@" 1>&2
    exit 1
}

warn() {
    echo -e "\033[0;33m$@\033[0m"
}

info() {
    echo -e "\033[0;34m$@\033[0m"
}

if [[ $EUID -eq 0 ]]; then
    error "This script must not be run as root"
fi

if [ "$(uname -m)" != "aarch64" ]; then
    error "This script is meant for ARM64 devices. If you're on x86_64, just use the official builds please."
fi

info "osu! Asahi Installer\n"

mkdir -p /tmp/osu-asahi
cd /tmp/osu-asahi

# Install dependencies
source /etc/os-release

case $ID in
fedora*)
    info "Installing packages..."
    sudo dnf install dotnet-sdk-8.0 SDL2-devel cmake python3
    ;;
*buntu*)
    info "Installing packages..."
    sudo apt-get install dotnet8 libsdl2-dev cmake python3
    ;;
archarm*)
    info "Installing pacman packages..."
    sudo pacman -S sdl2 cmake python --needed
    # if not installed (check pacman)
    if ! pacman -Qs dotnet-sdk-bin; then
        warn "The following packages will be installed from the AUR: dotnet-core-bin"
        warn "Disclaimer: The AUR is a user maintained repository"
        read -p "Press enter to continue..."

        git clone https://aur.archlinux.org/dotnet-core-bin.git
        cd dotnet-core-bin
        makepkg -si
        cd ..
    fi
    ;;
*)
    warn "Unsupported distro, skipping package installation. Please install these packages' equivalents manually: dotnet-sdk-8.0 SDL2-dev cmake python3"
    read -p "Press enter to continue..."
    ;;
esac

info "Cloning osu!..."
if ! [ -d /tmp/osu-asahi/osu ]; then
    git clone $OSU_GIT --branch $OSU_GIT_BRANCH /tmp/osu-asahi/osu
else
    warn "Using existing clone at /tmp/osu-asahi/osu"
fi

info "Building osu!..."
cd /tmp/osu-asahi/osu
git checkout $OSU_GIT_BRANCH
git pull origin $OSU_GIT_BRANCH
git submodule update --init --recursive

killall -KILL dotnet || true
DOTNET_CLI_TELEMETRY_OPTOUT="1" dotnet publish osu.Desktop \
    --configuration Release \
    --use-current-runtime \
    --output ~/.local/share/osu-asahi \
    -v normal \
    /property:Version="$OSU_GIT_BRANCH"

info "Downloading/cloning dependencies..."
curl -s $BASS_URL -o /tmp/osu-asahi/bass.zip
curl -s $BASS_FX_URL -o /tmp/osu-asahi/bass_fx.zip
curl -s $BASSMIX_URL -o /tmp/osu-asahi/bassmix.zip

if ! [ -d /tmp/osu-asahi/veldrid-spirv ]; then
    git clone --recurse-submodules $VELDRID_SPIRV_GIT /tmp/osu-asahi/veldrid-spirv
else
    warn "Using existing clone at /tmp/osu-asahi/veldrid-spirv"
fi

cd /tmp/osu-asahi/veldrid-spirv
sed -i '37s/.*/std::wint_t IDs[2];/' src/libveldrid-spirv/libveldrid-spirv.cpp
./ext/sync-shaderc.sh

info "Building dependencies..."
eval sed -i 's/_CMakeExtraBuildArgs=.*/_CMakeExtraBuildArgs="-j$(getconf _NPROCESSORS_ONLN)"/g' ./build-native.sh # Use all the cores
./build-native.sh -release linux-x64

info "Installing dependencies..."
cp build/Release/linux-x64/libveldrid-spirv.so ~/.local/share/osu-asahi/libveldrid-spirv.so
rm -rf /tmp/osu-asahi/{bass,bass_fx,bassmix}
unzip /tmp/osu-asahi/bass.zip -d /tmp/osu-asahi/bass
unzip /tmp/osu-asahi/bass_fx.zip -d /tmp/osu-asahi/bass_fx
unzip /tmp/osu-asahi/bassmix.zip -d /tmp/osu-asahi/bassmix
cp /tmp/osu-asahi/bass/libs/aarch64/libbass.so ~/.local/share/osu-asahi/libbass.so
cp /tmp/osu-asahi/bass_fx/libs/aarch64/libbass_fx.so ~/.local/share/osu-asahi/libbass_fx.so
cp /tmp/osu-asahi/bassmix/libs/aarch64/libbassmix.so ~/.local/share/osu-asahi/libbassmix.so

info "Installing osu!..."

# Add .desktop file
cat <<EOF >$HOME/.local/share/applications/osu-asahi.desktop
[Desktop Entry]
Name=osu!
Comment=rhythm is just a *click* away!
Exec=${HOME}/.local/bin/osu %F
Icon=${HOME}/.local/share/osu-asahi/lazer.ico
Terminal=false
Type=Application
Categories=Game;ActionGame
MimeType=application/x-osu-beatmap-archive;application/x-osu-skin-archive;application/x-osu-beatmap;application/x-osu-storyboard;application/x-osu-replay;x-scheme-handler/osu;
StartupNotify=true
StartupWMClass=osu!
SingleMainWindow=true
PrefersNonDefaultGPU=true
X-KDE-RunOnDiscreteGpu=true
EOF

if [[ ":$PATH:" == *":$HOME/.local/bin:"* ]]; then
    if ! [ -L $HOME/.local/bin/osu ]; then
        mkdir -p $HOME/.local/bin
        ln -s $HOME/.local/share/osu-asahi/osu\! ~/.local/bin/osu
    fi
else
    warn "Failed to create $HOME/.local/bin/osu symlink, you can stil launch it at $HOME/.local/share/osu-asahi/osu\!"
fi

echo ""
echo -e "\033[0;32mDone, you can now launch osu! from your application launcher or using the 'osu' command\033[0m"