prompt: We are currently solving the following issue within our repository. Here is the issue text:
  --- BEGIN ISSUE ---
  Gamescope failure
  Spot the issue, I can't. Just enabled gamescope with latest version but it seems there is invalid syntax. 
  
  Started initial process 34578 from gamescope -f -- gamemoderun /home/theriddick/.local/share/lutris/runners/wine/lutris-ge-6.18-1-x86_64/bin/wine /mnt/GamesNVMe/Games/Encased A Sci-Fi Post-Apocalyptic RPG/Encased.exe
  Start monitoring process.
  gamescope: invalid option -- ' '
  See --help for a list of options.
  Monitored process exited.
  Initial process has exited (return code: 256)
  All processes have quit
  Exit with return code 256
  
  
  --- END ISSUE ---
  
  Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
  --- BEGIN FILES ---
  Path: `lutris/runner_interpreter.py`
  Content:
  ```
  1 """Transform runner parameters to data usable for runtime execution"""
  2 import os
  3 import shlex
  4 import stat
  5 
  6 from lutris.util import system
  7 from lutris.util.linux import LINUX_SYSTEM
  8 from lutris.util.log import logger
  9 
  10 
  11 def get_mangohud_conf(system_config):
  12     """Return correct launch arguments and environment variables for Mangohud."""
  13     env = {"MANGOHUD": "1"}
  14     mango_args = []
  15     mangohud = system_config.get("mangohud") or ""
  16     if mangohud and system.find_executable("mangohud"):
  17         if mangohud == "gl64":
  18             mango_args = ["mangohud"]
  19             env["MANGOHUD_DLSYM"] = "1"
  20         elif mangohud == "gl32":
  21             mango_args = ["mangohud.x86"]
  22             env["MANGOHUD_DLSYM"] = "1"
  23         else:
  24             mango_args = ["mangohud"]
  25     return mango_args, env
  26 
  27 
  28 def get_launch_parameters(runner, gameplay_info):
  29     system_config = runner.system_config
  30     launch_arguments = gameplay_info["command"]
  31     env = {
  32         "DISABLE_LAYER_AMD_SWITCHABLE_GRAPHICS_1": "1"
  33     }
  34 
  35     # Steam compatibility
  36     if os.environ.get("SteamAppId"):
  37         logger.info("Game launched from steam (AppId: %s)", os.environ["SteamAppId"])
  38         env["LC_ALL"] = ""
  39 
  40     # Optimus
  41     optimus = system_config.get("optimus")
  42     if optimus == "primusrun" and system.find_executable("primusrun"):
  43         launch_arguments.insert(0, "primusrun")
  44     elif optimus == "optirun" and system.find_executable("optirun"):
  45         launch_arguments.insert(0, "virtualgl")
  46         launch_arguments.insert(0, "-b")
  47         launch_arguments.insert(0, "optirun")
  48     elif optimus == "pvkrun" and system.find_executable("pvkrun"):
  49         launch_arguments.insert(0, "pvkrun")
  50 
  51     mango_args, mango_env = get_mangohud_conf(system_config)
  52     if mango_args:
  53         launch_arguments = mango_args + launch_arguments
  54         env.update(mango_env)
  55 
  56     # Libstrangle
  57     fps_limit = system_config.get("fps_limit") or ""
  58     if fps_limit:
  59         strangle_cmd = system.find_executable("strangle")
  60         if strangle_cmd:
  61             launch_arguments = [strangle_cmd, fps_limit] + launch_arguments
  62         else:
  63             logger.warning("libstrangle is not available on this system, FPS limiter disabled")
  64 
  65     prefix_command = system_config.get("prefix_command") or ""
  66     if prefix_command:
  67         launch_arguments = (shlex.split(os.path.expandvars(prefix_command)) + launch_arguments)
  68 
  69     single_cpu = system_config.get("single_cpu") or False
  70     if single_cpu:
  71         logger.info("The game will run on a single CPU core")
  72         launch_arguments.insert(0, "0")
  73         launch_arguments.insert(0, "-c")
  74         launch_arguments.insert(0, "taskset")
  75 
  76     env.update(runner.get_env())
  77 
  78     env.update(gameplay_info.get("env") or {})
  79 
  80     # Set environment variables dependent on gameplay info
  81 
  82     # LD_PRELOAD
  83     ld_preload = gameplay_info.get("ld_preload")
  84     if ld_preload:
  85         env["LD_PRELOAD"] = ld_preload
  86 
  87     # LD_LIBRARY_PATH
  88     game_ld_libary_path = gameplay_info.get("ld_library_path")
  89     if game_ld_libary_path:
  90         ld_library_path = env.get("LD_LIBRARY_PATH")
  91         if not ld_library_path:
  92             ld_library_path = "$LD_LIBRARY_PATH"
  93         env["LD_LIBRARY_PATH"] = ":".join([game_ld_libary_path, ld_library_path])
  94 
  95     # Feral gamemode
  96     gamemode = system_config.get("gamemode") and LINUX_SYSTEM.gamemode_available()
  97     if gamemode:
  98         launch_arguments.insert(0, "gamemoderun")
  99 
  100     # Gamescope
  101     gamescope = system_config.get("gamescope") and system.find_executable("gamescope")
  102     if gamescope:
  103         launch_arguments = get_gamescope_args(launch_arguments, system_config)
  104 
  105     return launch_arguments, env
  106 
  107 
  108 def get_gamescope_args(launch_arguments, system_config):
  109     """Insert gamescope at the start of the launch arguments"""
  110     launch_arguments.insert(0, "-f --")
  111     if system_config.get("gamescope_output_res"):
  112         output_width, output_height = system_config["gamescope_output_res"].lower().split("x")
  113         launch_arguments.insert(0, output_height)
  114         launch_arguments.insert(0, "-H")
  115         launch_arguments.insert(0, output_width)
  116         launch_arguments.insert(0, "-W")
  117     if system_config.get("gamescope_game_res"):
  118         game_width, game_height = system_config["gamescope_game_res"].lower().split("x")
  119         launch_arguments.insert(0, game_height)
  120         launch_arguments.insert(0, "-h")
  121         launch_arguments.insert(0, game_width)
  122         launch_arguments.insert(0, "-w")
  123     launch_arguments.insert(0, "gamescope")
  124     return launch_arguments
  125 
  126 
  127 def export_bash_script(runner, gameplay_info, script_path):
  128     """Convert runner configuration into a bash script"""
  129     command, env = get_launch_parameters(runner, gameplay_info)
  130     # Override TERM otherwise the script might not run
  131     env["TERM"] = "xterm"
  132     script_content = "#!/bin/bash\n\n\n"
  133     script_content += "# Environment variables\n"
  134     for env_var in env:
  135         script_content += "export %s=\"%s\"\n" % (env_var, env[env_var])
  136     script_content += "\n# Command\n"
  137     script_content += " ".join([shlex.quote(c) for c in command])
  138     with open(script_path, "w") as script_file:
  139         script_file.write(script_content)
  140 
  141     os.chmod(script_path, os.stat(script_path).st_mode | stat.S_IEXEC)
  142
  ```
  --- END FILES ---
  
  Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.
  
  Here is an example:
  
  ```diff
  diff --git a/examples/server_async.py b/examples/server_async.py
  --- a/examples/server_async.py
  +++ b/examples/server_async.py
  @@ -313,4 +313,4 @@
   
   
   if __name__ == "__main__":
  -    asyncio.run(run_async_server("."), debug=True)
  +    asyncio.run(run_async_server(), debug=True)
  diff --git a/examples/server_sync.py b/examples/server_sync.py
  --- a/examples/server_sync.py
  +++ b/examples/server_sync.py
  @@ -313,5 +313,5 @@
   
   
   if __name__ == "__main__":
  -    server = run_sync_server(".")
  +    server = run_sync_server()
       server.shutdown()
  
  ```
  
golden_diff: diff --git a/lutris/runner_interpreter.py b/lutris/runner_interpreter.py
  --- a/lutris/runner_interpreter.py
  +++ b/lutris/runner_interpreter.py
  @@ -107,7 +107,8 @@
   
   def get_gamescope_args(launch_arguments, system_config):
       """Insert gamescope at the start of the launch arguments"""
  -    launch_arguments.insert(0, "-f --")
  +    launch_arguments.insert(0, "--")
  +    launch_arguments.insert(0, "-f")
       if system_config.get("gamescope_output_res"):
           output_width, output_height = system_config["gamescope_output_res"].lower().split("x")
           launch_arguments.insert(0, output_height)
  
verification_info: {"golden_diff": "diff --git a/lutris/runner_interpreter.py b/lutris/runner_interpreter.py\n--- a/lutris/runner_interpreter.py\n+++ b/lutris/runner_interpreter.py\n@@ -107,7 +107,8 @@\n \n def get_gamescope_args(launch_arguments, system_config):\n     \"\"\"Insert gamescope at the start of the launch arguments\"\"\"\n-    launch_arguments.insert(0, \"-f --\")\n+    launch_arguments.insert(0, \"--\")\n+    launch_arguments.insert(0, \"-f\")\n     if system_config.get(\"gamescope_output_res\"):\n         output_width, output_height = system_config[\"gamescope_output_res\"].lower().split(\"x\")\n         launch_arguments.insert(0, output_height)\n", "issue": "Gamescope failure\nSpot the issue, I can't. Just enabled gamescope with latest version but it seems there is invalid syntax. \r\n\r\nStarted initial process 34578 from gamescope -f -- gamemoderun /home/theriddick/.local/share/lutris/runners/wine/lutris-ge-6.18-1-x86_64/bin/wine /mnt/GamesNVMe/Games/Encased A Sci-Fi Post-Apocalyptic RPG/Encased.exe\r\nStart monitoring process.\r\ngamescope: invalid option -- ' '\r\nSee --help for a list of options.\r\nMonitored process exited.\r\nInitial process has exited (return code: 256)\r\nAll processes have quit\r\nExit with return code 256\r\n\n", "before_files": [{"content": "\"\"\"Transform runner parameters to data usable for runtime execution\"\"\"\nimport os\nimport shlex\nimport stat\n\nfrom lutris.util import system\nfrom lutris.util.linux import LINUX_SYSTEM\nfrom lutris.util.log import logger\n\n\ndef get_mangohud_conf(system_config):\n    \"\"\"Return correct launch arguments and environment variables for Mangohud.\"\"\"\n    env = {\"MANGOHUD\": \"1\"}\n    mango_args = []\n    mangohud = system_config.get(\"mangohud\") or \"\"\n    if mangohud and system.find_executable(\"mangohud\"):\n        if mangohud == \"gl64\":\n            mango_args = [\"mangohud\"]\n            env[\"MANGOHUD_DLSYM\"] = \"1\"\n        elif mangohud == \"gl32\":\n            mango_args = [\"mangohud.x86\"]\n            env[\"MANGOHUD_DLSYM\"] = \"1\"\n        else:\n            mango_args = [\"mangohud\"]\n    return mango_args, env\n\n\ndef get_launch_parameters(runner, gameplay_info):\n    system_config = runner.system_config\n    launch_arguments = gameplay_info[\"command\"]\n    env = {\n        \"DISABLE_LAYER_AMD_SWITCHABLE_GRAPHICS_1\": \"1\"\n    }\n\n    # Steam compatibility\n    if os.environ.get(\"SteamAppId\"):\n        logger.info(\"Game launched from steam (AppId: %s)\", os.environ[\"SteamAppId\"])\n        env[\"LC_ALL\"] = \"\"\n\n    # Optimus\n    optimus = system_config.get(\"optimus\")\n    if optimus == \"primusrun\" and system.find_executable(\"primusrun\"):\n        launch_arguments.insert(0, \"primusrun\")\n    elif optimus == \"optirun\" and system.find_executable(\"optirun\"):\n        launch_arguments.insert(0, \"virtualgl\")\n        launch_arguments.insert(0, \"-b\")\n        launch_arguments.insert(0, \"optirun\")\n    elif optimus == \"pvkrun\" and system.find_executable(\"pvkrun\"):\n        launch_arguments.insert(0, \"pvkrun\")\n\n    mango_args, mango_env = get_mangohud_conf(system_config)\n    if mango_args:\n        launch_arguments = mango_args + launch_arguments\n        env.update(mango_env)\n\n    # Libstrangle\n    fps_limit = system_config.get(\"fps_limit\") or \"\"\n    if fps_limit:\n        strangle_cmd = system.find_executable(\"strangle\")\n        if strangle_cmd:\n            launch_arguments = [strangle_cmd, fps_limit] + launch_arguments\n        else:\n            logger.warning(\"libstrangle is not available on this system, FPS limiter disabled\")\n\n    prefix_command = system_config.get(\"prefix_command\") or \"\"\n    if prefix_command:\n        launch_arguments = (shlex.split(os.path.expandvars(prefix_command)) + launch_arguments)\n\n    single_cpu = system_config.get(\"single_cpu\") or False\n    if single_cpu:\n        logger.info(\"The game will run on a single CPU core\")\n        launch_arguments.insert(0, \"0\")\n        launch_arguments.insert(0, \"-c\")\n        launch_arguments.insert(0, \"taskset\")\n\n    env.update(runner.get_env())\n\n    env.update(gameplay_info.get(\"env\") or {})\n\n    # Set environment variables dependent on gameplay info\n\n    # LD_PRELOAD\n    ld_preload = gameplay_info.get(\"ld_preload\")\n    if ld_preload:\n        env[\"LD_PRELOAD\"] = ld_preload\n\n    # LD_LIBRARY_PATH\n    game_ld_libary_path = gameplay_info.get(\"ld_library_path\")\n    if game_ld_libary_path:\n        ld_library_path = env.get(\"LD_LIBRARY_PATH\")\n        if not ld_library_path:\n            ld_library_path = \"$LD_LIBRARY_PATH\"\n        env[\"LD_LIBRARY_PATH\"] = \":\".join([game_ld_libary_path, ld_library_path])\n\n    # Feral gamemode\n    gamemode = system_config.get(\"gamemode\") and LINUX_SYSTEM.gamemode_available()\n    if gamemode:\n        launch_arguments.insert(0, \"gamemoderun\")\n\n    # Gamescope\n    gamescope = system_config.get(\"gamescope\") and system.find_executable(\"gamescope\")\n    if gamescope:\n        launch_arguments = get_gamescope_args(launch_arguments, system_config)\n\n    return launch_arguments, env\n\n\ndef get_gamescope_args(launch_arguments, system_config):\n    \"\"\"Insert gamescope at the start of the launch arguments\"\"\"\n    launch_arguments.insert(0, \"-f --\")\n    if system_config.get(\"gamescope_output_res\"):\n        output_width, output_height = system_config[\"gamescope_output_res\"].lower().split(\"x\")\n        launch_arguments.insert(0, output_height)\n        launch_arguments.insert(0, \"-H\")\n        launch_arguments.insert(0, output_width)\n        launch_arguments.insert(0, \"-W\")\n    if system_config.get(\"gamescope_game_res\"):\n        game_width, game_height = system_config[\"gamescope_game_res\"].lower().split(\"x\")\n        launch_arguments.insert(0, game_height)\n        launch_arguments.insert(0, \"-h\")\n        launch_arguments.insert(0, game_width)\n        launch_arguments.insert(0, \"-w\")\n    launch_arguments.insert(0, \"gamescope\")\n    return launch_arguments\n\n\ndef export_bash_script(runner, gameplay_info, script_path):\n    \"\"\"Convert runner configuration into a bash script\"\"\"\n    command, env = get_launch_parameters(runner, gameplay_info)\n    # Override TERM otherwise the script might not run\n    env[\"TERM\"] = \"xterm\"\n    script_content = \"#!/bin/bash\\n\\n\\n\"\n    script_content += \"# Environment variables\\n\"\n    for env_var in env:\n        script_content += \"export %s=\\\"%s\\\"\\n\" % (env_var, env[env_var])\n    script_content += \"\\n# Command\\n\"\n    script_content += \" \".join([shlex.quote(c) for c in command])\n    with open(script_path, \"w\") as script_file:\n        script_file.write(script_content)\n\n    os.chmod(script_path, os.stat(script_path).st_mode | stat.S_IEXEC)\n", "path": "lutris/runner_interpreter.py"}], "after_files": [{"content": "\"\"\"Transform runner parameters to data usable for runtime execution\"\"\"\nimport os\nimport shlex\nimport stat\n\nfrom lutris.util import system\nfrom lutris.util.linux import LINUX_SYSTEM\nfrom lutris.util.log import logger\n\n\ndef get_mangohud_conf(system_config):\n    \"\"\"Return correct launch arguments and environment variables for Mangohud.\"\"\"\n    env = {\"MANGOHUD\": \"1\"}\n    mango_args = []\n    mangohud = system_config.get(\"mangohud\") or \"\"\n    if mangohud and system.find_executable(\"mangohud\"):\n        if mangohud == \"gl64\":\n            mango_args = [\"mangohud\"]\n            env[\"MANGOHUD_DLSYM\"] = \"1\"\n        elif mangohud == \"gl32\":\n            mango_args = [\"mangohud.x86\"]\n            env[\"MANGOHUD_DLSYM\"] = \"1\"\n        else:\n            mango_args = [\"mangohud\"]\n    return mango_args, env\n\n\ndef get_launch_parameters(runner, gameplay_info):\n    system_config = runner.system_config\n    launch_arguments = gameplay_info[\"command\"]\n    env = {\n        \"DISABLE_LAYER_AMD_SWITCHABLE_GRAPHICS_1\": \"1\"\n    }\n\n    # Steam compatibility\n    if os.environ.get(\"SteamAppId\"):\n        logger.info(\"Game launched from steam (AppId: %s)\", os.environ[\"SteamAppId\"])\n        env[\"LC_ALL\"] = \"\"\n\n    # Optimus\n    optimus = system_config.get(\"optimus\")\n    if optimus == \"primusrun\" and system.find_executable(\"primusrun\"):\n        launch_arguments.insert(0, \"primusrun\")\n    elif optimus == \"optirun\" and system.find_executable(\"optirun\"):\n        launch_arguments.insert(0, \"virtualgl\")\n        launch_arguments.insert(0, \"-b\")\n        launch_arguments.insert(0, \"optirun\")\n    elif optimus == \"pvkrun\" and system.find_executable(\"pvkrun\"):\n        launch_arguments.insert(0, \"pvkrun\")\n\n    mango_args, mango_env = get_mangohud_conf(system_config)\n    if mango_args:\n        launch_arguments = mango_args + launch_arguments\n        env.update(mango_env)\n\n    # Libstrangle\n    fps_limit = system_config.get(\"fps_limit\") or \"\"\n    if fps_limit:\n        strangle_cmd = system.find_executable(\"strangle\")\n        if strangle_cmd:\n            launch_arguments = [strangle_cmd, fps_limit] + launch_arguments\n        else:\n            logger.warning(\"libstrangle is not available on this system, FPS limiter disabled\")\n\n    prefix_command = system_config.get(\"prefix_command\") or \"\"\n    if prefix_command:\n        launch_arguments = (shlex.split(os.path.expandvars(prefix_command)) + launch_arguments)\n\n    single_cpu = system_config.get(\"single_cpu\") or False\n    if single_cpu:\n        logger.info(\"The game will run on a single CPU core\")\n        launch_arguments.insert(0, \"0\")\n        launch_arguments.insert(0, \"-c\")\n        launch_arguments.insert(0, \"taskset\")\n\n    env.update(runner.get_env())\n\n    env.update(gameplay_info.get(\"env\") or {})\n\n    # Set environment variables dependent on gameplay info\n\n    # LD_PRELOAD\n    ld_preload = gameplay_info.get(\"ld_preload\")\n    if ld_preload:\n        env[\"LD_PRELOAD\"] = ld_preload\n\n    # LD_LIBRARY_PATH\n    game_ld_libary_path = gameplay_info.get(\"ld_library_path\")\n    if game_ld_libary_path:\n        ld_library_path = env.get(\"LD_LIBRARY_PATH\")\n        if not ld_library_path:\n            ld_library_path = \"$LD_LIBRARY_PATH\"\n        env[\"LD_LIBRARY_PATH\"] = \":\".join([game_ld_libary_path, ld_library_path])\n\n    # Feral gamemode\n    gamemode = system_config.get(\"gamemode\") and LINUX_SYSTEM.gamemode_available()\n    if gamemode:\n        launch_arguments.insert(0, \"gamemoderun\")\n\n    # Gamescope\n    gamescope = system_config.get(\"gamescope\") and system.find_executable(\"gamescope\")\n    if gamescope:\n        launch_arguments = get_gamescope_args(launch_arguments, system_config)\n\n    return launch_arguments, env\n\n\ndef get_gamescope_args(launch_arguments, system_config):\n    \"\"\"Insert gamescope at the start of the launch arguments\"\"\"\n    launch_arguments.insert(0, \"--\")\n    launch_arguments.insert(0, \"-f\")\n    if system_config.get(\"gamescope_output_res\"):\n        output_width, output_height = system_config[\"gamescope_output_res\"].lower().split(\"x\")\n        launch_arguments.insert(0, output_height)\n        launch_arguments.insert(0, \"-H\")\n        launch_arguments.insert(0, output_width)\n        launch_arguments.insert(0, \"-W\")\n    if system_config.get(\"gamescope_game_res\"):\n        game_width, game_height = system_config[\"gamescope_game_res\"].lower().split(\"x\")\n        launch_arguments.insert(0, game_height)\n        launch_arguments.insert(0, \"-h\")\n        launch_arguments.insert(0, game_width)\n        launch_arguments.insert(0, \"-w\")\n    launch_arguments.insert(0, \"gamescope\")\n    return launch_arguments\n\n\ndef export_bash_script(runner, gameplay_info, script_path):\n    \"\"\"Convert runner configuration into a bash script\"\"\"\n    command, env = get_launch_parameters(runner, gameplay_info)\n    # Override TERM otherwise the script might not run\n    env[\"TERM\"] = \"xterm\"\n    script_content = \"#!/bin/bash\\n\\n\\n\"\n    script_content += \"# Environment variables\\n\"\n    for env_var in env:\n        script_content += \"export %s=\\\"%s\\\"\\n\" % (env_var, env[env_var])\n    script_content += \"\\n# Command\\n\"\n    script_content += \" \".join([shlex.quote(c) for c in command])\n    with open(script_path, \"w\") as script_file:\n        script_file.write(script_content)\n\n    os.chmod(script_path, os.stat(script_path).st_mode | stat.S_IEXEC)\n", "path": "lutris/runner_interpreter.py"}]}