os_win.bash

if [[ -n $WSL_DISTRO_NAME ]]; then
    alias win_dir_as_unix_format='wslpath -m'
    alias winget='winget.exe'
    alias explorer='explorer.exe'
    alias powershell='powershell.exe'
    function win_start() {
        type -p wslview >/dev/null || sudo apt install wslu
        wslview $@
    }
else
    alias win_dir_as_unix_format='cygpath -m'
fi

# -- load funcs from os_win.ps1 as aliases --

function _ps_call() {
    powershell.exe -command "& { . $(wslpath -w $BH_DIR/os_win.ps1); $* }"
}

function _ps_def_func() {
    if ! typeset -f $1 >/dev/null 2>&1; then
        eval 'function '$1'() { _ps_call' $1 '$*; }'
    fi
}

function ps_def_funcs_from_ps1() {
    : ${1?"Usage: ${FUNCNAME[0]} <ps1_file>"}
    # load functions from file that does not start with _
    if test -f $1; then
        _regex_no_underscore_func='function\s([^_][^{]+)\('
        while read -r line; do
            if [[ $line =~ $_regex_no_underscore_func ]]; then
                func=${BASH_REMATCH[1]}
                _ps_def_func $func
            fi
        done <$1
    else
        echo "$1 does not exist"
    fi
}

_regex_no_underscore_func='function\s([^_][^{]+)\('
while read -r line; do
    if [[ $line =~ $_regex_no_underscore_func ]]; then
        func=${BASH_REMATCH[1]}
        if [[ ! $func =~ ^(log_msg)$ ]]; then # also exists in win.ps1
            _ps_def_func $func
        fi
    fi
done <$BH_DIR/os_win.ps1

function wsl_install_cuda_cudnn() {
    # https://canonical-ubuntu-wsl.readthedocs-hosted.com/en/latest/tutorials/gpu-cuda/
    sudo apt-key del 7fa2af80
    wget https://developer.download.nvidia.com/compute/cuda/repos/wsl-ubuntu/x86_64/cuda-wsl-ubuntu.pin /tmp/cuda-wsl-ubuntu.pin
    sudo mv /tmp/cuda-wsl-ubuntu.pin /etc/apt/preferences.d/cuda-repository-pin-600
    sudo apt-key adv --fetch-keys https://developer.download.nvidia.com/compute/cuda/repos/wsl-ubuntu/x86_64/3bf863cc.pub
    sudo add-apt-repository -y 'deb https://developer.download.nvidia.com/compute/cuda/repos/wsl-ubuntu/x86_64/ /'
    # https://itsfoss.com/key-is-stored-in-legacy-trusted-gpg/
    sudo apt-key export 3BF863CC | sudo gpg --dearmour -o /etc/apt/trusted.gpg.d/cudatools.gpg
    sudo apt-get update
    sudo apt-get -y install cuda nvidia-cudnn
}

function wsl_fix_libcuda_so_slink() {
    # https://github.com/microsoft/WSL/issues/5663
    (
        cd /usr/lib/wsl/lib
        sudo rm libcuda.so
        sudo rm libcuda.so.1
        sudo ln -s libcuda.so.1.1 libcuda.so
        sudo ln -s libcuda.so.1.1 libcuda.so.1
    )
}

# -- msys2 --

if type -p pacman >/dev/null; then
    alias msys2_search='pacman -s --noconfirm'
    alias msys2_show='pacman -Qi'
    alias msys2_list_installed='pacman -Qqe'
    alias msys2_install='pacman -S --noconfirm'
    alias msys2_uninstall='pacman -R --noconfirm'
    alias msys2_use_same_home='echo db_home: windows >>/etc/nsswitch.conf'
fi