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55 lines
1.8 KiB
Bash
55 lines
1.8 KiB
Bash
#!/bin/bash
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# Steam "Pressure Vessel" runtime eliminator.
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#
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# Valve ships various pre-packaged runtime environments for games to use.
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# They are cool, in a way: Most games "just work" with them.
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# However, such convenience comes at the cost of performance and sometimes reliability.
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#
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# Normally, I disable any and all such runtimes and install all the required dependencies myself.
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# However, running Windows games using Proton enforces use of a runtime.
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# That runtime is shipped in a "Pressure Vessel" container, which is more isolated.
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# The worst part is, user-supplied LD_PRELOAD and LD_LIBRARY_PATH are ignored due to that.
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# That means no primusrun/pvkrun/whatever for Windows games, which sucks.
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#
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# This little script's purpose is to cut "Pressure Vessel" out of game's command line.
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# Be warned that that gives you the ability *and responsibility* to manage the dependencies.
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# Place pressure-vent.sh after all " -- " in game's launch options, if any.
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# Placing e.g. "xterm -e" at the start of launch options is an easy way to see logs.
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# Examples:
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# primusrun ~/pressure-vent.sh %command%
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# xterm -e /full/path/to/pressure-vent.sh pvkrun %command%
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# Functions
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cmdprn() {
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printf '%s:\n%q' "$1" "$2"
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printf ' %q' "${@:3}"
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printf '\n\n'
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}
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err() {
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printf '%s\nPress Enter to quit.\n' "$1"
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read
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exit 1
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}
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# Debug
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cmdprn "Original command line" "$@"
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printf "LD_PRELOAD:\n%q\n\n" "$LD_PRELOAD"
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printf "LD_LIBRARY_PATH:\n%q\n\n" "$LD_LIBRARY_PATH"
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# Find Pressure Vessel arguments (between two first "--")
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((left=1))
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while [[ left -le $# && "${!left}" != "--" ]]; do
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((left++))
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done
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((right=left+1))
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while [[ right -le $# && "${!right}" != "--" ]]; do
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((right++))
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done
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[[ right -gt $# ]] && err 'Error processing command line.'
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# Cut them out
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set -- "${@:1:left}" "${@:right+1}"
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cmdprn "Processed command line" "$@" # Debug
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exec "$@" || err "Game terminated with code $?."
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