gumby tool to test steam %command% string > bepinex > valheim

bepinex-valheim.sh

#!/bin/bash
# betlog - 2024-12-01--15-24-38
#
# NOTE: valheim specific: consense all of the useless crap and eval $0 sorcery in:
#       denikson-BepInExPack_Valheim-5.4.2202/start_game_bepinex.sh
#       and
#       BepInEx_unix_5.4.22.0/run_bepinex.sh
#       and instead just export the bep exports, forcibly enable native linux graphics acceleration, maybe manipulate the argument string, and run  %command%
#       Explicitly avoid just shuffling $1 etc and using shift.
#       Seems more useful to target & remove particular strings and pass commands/arguments entered before AND after %command%
#
# USE:
# put this script in your valheim directory, next to the valheim executable
# steam > game properties > launch options
# ./bepinex-valheim.sh %command%
# ./bepinex-valheim.sh %command% -console
# ./bepinex-valheim.sh mangohud gamemoderun %command% -console
# etc
#
# LOG: <valheimDirectory>/<this scipt name>.log
#
# possibly related/useful
# https://github.com/ValveSoftware/Dota-2/issues/2018
# https://github.com/ValveSoftware/steam-runtime/blob/master/doc/steamlinuxruntime-known-issues.md
#
# simple linux-only sanity check
        [[ -f "${0%/*}/valheim.x86_64" ]] && valheimBaseDir=${0%/*} || { echo -ne "Could not set valheimBaseDir:\\n either your executable isnt called valheim.x86_64\\n or you didn't put this script in the same folder as valheim.x86_64"; exit; }
#
# test alterations to the %command% string
        cmd=$(echo "$@"|sed 's|/[^ ]*/SteamLinuxRuntime_soldier/_v2-entry-point --verb=waitforexitandrun -- ||; s|/[^ ]*/SteamLinuxRuntime/scout-on-soldier-entry-point-v2 -- ||')
# ^ works ^
#
#         cmd=$(echo "$@"|sed 's|/[^ ]*/SteamLinuxRuntime_soldier/_v2-entry-point --verb=waitforexitandrun -- ||')
# ^ fails ^
#
#         cmd=$(echo "$@"|sed 's|/[^ ]*/SteamLinuxRuntime/scout-on-soldier-entry-point-v2 -- ||')
# ^ fails ^
#
#
# log the original and modified launch options string
        # do this before bep exports to avoid spam interference
        echo --------------------------------
        stamp=$(date +%Y-%m-%d--%H-%M-%S)
        echo -ne "----------\\n$stamp\\n\\n\$@  :$@\\n\\n\$cmd:$cmd\\n"|tee -a "${0%.*}.log"
        echo --------------------------------
#
# enable native linux acceleration methods
        valConfig=$valheimBaseDir/valheim_Data/boot.config
        # NOTE: I ASSUME this is valid for both vulkan and opengl, probably ignored by windows
        # NOTE make sure to insert BEFORE first line (used it at end for a long time, but something i saw recently said START OF FILE)
        # NOTE: updates seem to remove this, and the framerate degradation is horrendous, so check/force them in at every start
        [[ -z $(grep -o "gfx-enable-gfx-jobs=1" "$valConfig") ]] && sed -i '1s/^/gfx-enable-gfx-jobs=1\n/' "$valConfig"
        [[ -z $(grep -o "gfx-enable-native-gfx-jobs=1" "$valConfig") ]] && sed -i '1s/^/gfx-enable-native-gfx-jobs=1\n/' "$valConfig"
#
# bepinex
        export DOORSTOP_ENABLE=TRUE
        export DOORSTOP_INVOKE_DLL_PATH="$valheimBaseDir/BepInEx/core/BepInEx.Preloader.dll"
        export DOORSTOP_CORLIB_OVERRIDE_PATH="$valheimBaseDir/unstripped_corlib"
        export LD_LIBRARY_PATH="$valheimBaseDir/doorstop_libs:$LD_LIBRARY_PATH"
        export LD_PRELOAD="libdoorstop_x64.so:$LD_PRELOAD"
#
# start valheim
        # -----------
        eval $cmd
#        $cmd
        # -----------