Bannerlord wine prefix creation for NixOS users (no deps management)

MountAndBlade-Nixlord.txt

### WARNING:
### This will delete your prefix. Backup or move it or any settings before running.
### NOTE:
### This symlinks your game settings and saves into your ${HOME}/Documents directory
### to keep them safe.

# set -x

if [[ -z $@ ]]
then
    echo "Usage: [STEAMAPPS=/path/to/steamapps] ./<this-script>.sh <verbs>"
    echo "<verbs> can be any number of verbs (vcrun2015 vcrun2017 etc)."
    echo "Passing dotnet472 makes for fast saves and good performance but crashes a lot."
    echo ""
    exit 1
fi

##### Read Observations at the bottom before modifying anything other than these:
if [[ -z $STEAMAPPS ]]
then
    STEAMAPPS=${HOME}/.steam/steam/steamapps
fi

export PROTON_VERSION=Proton-5.5-GE-1
#####


# Windows dependencies as stated by TaleWorlds Entertainment:
# * vcrun2015
# * vcrun2017
# * dotnet472

# If modified to use a proton wine for creating the prefix, run this with steam-run.

## Deps:
# * custom proton
#   * Version: https://github.com/GloriousEggroll/proton-ge-custom/releases/tag/5.5-GE-1
#   * Set game to use it in Steam's game properties
# * nixpkgs.cabextract (maybe? I think I needed it at some point but maybe not for this ritual)
# * nixpkgs.protontricks
# * nixpkgs.wine-staging (untested - I used nixpkgs.wineWowPackages.staging)
#   * staging required?
#   * only if not using proton
#   * I've had trouble in the past when using wine installed in user
#     environment, so I recommend including it in nixos configuration.
# nixpkgs.winetricks
#   * unless you need vcrun2019 which requires this revision or newer:
#     https://github.com/Winetricks/winetricks/commit/94edaddc039c205a98c2a620399a741c7a70ce02
#     see https://github.com/ValveSoftware/Proton/issues/3706#issuecomment-609460039 for instructions.

# WINEBINDIR=${HOME}/.steam/root/compatibilitytools.d/${PROTON_VERSION}/dist/bin
WINEBINDIR=/run/current-system/sw/bin

export WINEPREFIX=${STEAMAPPS}/compatdata/261550/pfx
export PATH=$WINEBINDIR:$PATH
# Just to be sure
export WINE=$WINEBINDIR/wine64
export WINESERVER=$WINEBINDIR/wineserver

# For custom (newer) winetricks - only needed for vcrun2019 afaik.
# Also only need to set this when using protontricks, but we'll use it generally.
# export WINETRICKS=${HOME}/.nix-profile/bin/winetricks
export WINETRICKS=/run/current-system/sw/bin/winetricks


DIRNAME="Mount and Blade II Bannerlord"
SRCCONFIGDIR="${HOME}/.local/share/TaleWorlds Interactive/$DIRNAME"
PFXCONFIGDIR="${WINEPREFIX}/drive_c/users/steamuser/My Documents/$DIRNAME"
if [[ -d "$PFXCONFIGDIR" && ! -d "$SRCCONFIGDIR" ]]
then
    echo "Moving pre-existing game settings and saves to $SRCCONFIGDIR"
    # echo "dry-run: mv -r \"$PFXCONFIGDIR\" \"$SRCCONFIGDIR\""
    mv -r "$PFXCONFIGDIR" "$SRCCONFIGDIR"
    echo ""
fi

if [[ -d "$WINEPREFIX" ]]
then
    echo "Purging wine prefix: $WINEPREFIX"
    # echo "dry-run: rm -rf $WINEPREFIX"
    rm -rf $WINEPREFIX
    echo ""
fi

if [[ ! -z $@ ]]
then
    echo "Creating prefix"
fi
for verb in "$@"
do
    echo "Adding $verb to prefix"
    # If using this, make sure to have steam create the prefix first by running the game once.
    # protontricks 261550 $verb

    # If using this, make sure prefix doesn't already exist.
    # This is very interactive - have not tried -q in combination with this
    # specific ritual and I'm afraid to ruin anything now.
    # echo "dry-run: $WINETRICKS arch=64 prefix=$WINEPREFIX $verb"
    $WINETRICKS arch=64 prefix=$WINEPREFIX $verb
done
echo ""

# Symlink your settings and local saves to outside prefix so you don't lose it
# upon wiping it.
if [[ ! -d "$SRCCONFIGDIR" ]]
then
    echo "Creating $SRCCONFIGDIR"
    mkdir -p "$SRCCONFIGDIR"
fi
if [[ ! -d "$PFXCONFIGDIR" ]]
then
    echo "Creating $PFXCONFIGDIR"
    mkdir -p "$PFXCONFIGDIR" # Create path
    rmdir "$PFXCONFIGDIR" # This is to become a symlink
fi

echo "Symlinking your settings and save files:"
     echo "    \"$PFXCONFIGDIR\""
     echo "    -> \"$SRCCONFIGDIR\""

echo ""
# echo "dry-run: ln -sf \"$SRCCONFIGDIR\" \"$PFXCONFIGDIR\""
ln -sf "$SRCCONFIGDIR" "$PFXCONFIGDIR"

echo ""
echo "Done. Make sure to set game to use $PROTON_VERSION in Steam before launching the game."

## Observations:
# * Using protontricks/steam to create prefix automatically includes vcrun2015 and vcrun2017
# * It appears you can use any recent wine and winetricks vcrun2019)
#   (unless you need vcrun2019) for creating the prefix and then run with some
#   proton or patched wine.
# * Using system wine and winetricks I'm able to install .Net 4.6, but not when
#   using proton's wine (or anything inside steam-run runtime)
#   * Things tried to make .Net 4.6 install with proton/steam-run:
#     * (in steam-run) <newer-winetricks> arch=64 prefix=$WINEPREFIX win7 vcrun2015 vcrun2017 dotnet472
#     * (in steam-run) <system-winetricks> arch=64 prefix=$WINEPREFIX winxp vcrun2015 vcrun2017 dotnet472
#     * protontricks 261550 dotnet472
#     * (in steam-run) protontricks 261550 dotnet472