steam-runtime launcher script for use outside of Steam

wrapper.sh

#!/bin/bash

# Path relative to the directory where the executable lives.
JPT_STEAM_RUNTIME_LOCATION='steam-runtime'

# Figure out where this script lives.
exedir="$(cd "$(dirname "$0")" && pwd)"
# If this script is named `foo.sh' or `foo', we execute `foo.bin'
exename="$(basename "$0" ".sh").bin"

if [ "$1" == "--check-program" ]; then
    exec "$exedir/$JPT_STEAM_RUNTIME_LOCATION/scripts/check-program.sh" "$exedir/$exename"
fi

# If the steam runtime is not already configured, re-exec ourself with
# the steam-runtime we expect to find in $JPT_STEAM_RUNTIME_LOCATION.
if [ -z "$STEAM_RUNTIME" ]; then
    if [ ! -z "$JPT_ATTEMPTED_REEXEC" ]; then
        echo "ERROR: Reexecuted in runtime, but STEAM_RUNTIME is unset!" >&2
        exit 1
    fi

    export JPT_ATTEMPTED_REEXEC=1
    exec "$exedir/$JPT_STEAM_RUNTIME_LOCATION/run.sh" "$0" "$@"
fi

# We support launching with --gdb to load the executable inside gdb,
# setting up the steam-runtime environment for the debugged process.
if [ "$1" == "--gdb" ]; then
    shift

    # Don't force GDB to load things from LD_LIBRARY_PATH, but instruct it to
    # tell the inferior process that it should.
    argsfile="$(mktemp $USER.$exename.gdb.XXXX)"
    echo set env LD_LIBRARY_PATH=$LD_LIBRARY_PATH >> "$argsfile"
    echo show env LD_LIBRARY_PATH >> "$argsfile"
    unset LD_LIBRARY_PATH

    gdb -x "$argsfile" --args "$exedir/$exename" "$@"
    exitcode=$?
    rm "$argsfile"
    exit $exitcode
else
    "$exedir/$exename" "$@"
fi