Execute anything with .spawn() with shell plugin. | Tauri Apps | Page 1

hollow idol May 23, 2025, 3:51 PM

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I'm developing a game launcher and I need to execute every single version of the game with the shell plugin.

Some versions need a command like Game --dataPath="", or like /path/to/dotnet Game.dll or even like mono Game.dll + I want to allow custom wrappers for thinks like gamemoderun and so on.

What's the problem? Permissions. Tauri is great speaking about security but this may be an issue here.
Is there any allow-execute-all or something like that?
If don't, can I at least create a run.sh or whatever on each instance folder, edit the content to it execute the game with whatever I need and then run that file?

hollow idol May 23, 2025, 4:57 PM

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Execute anything with .spawn() with shell plugin.

hollow idol May 23, 2025, 7:15 PM

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After thinking about this fro some time, is there any restriction when running commands on the backend?

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I can make an IPC to run the game and return the PID to the front and then maybe, if there's a way to do so, conect to that process and get the stdin and stdout of that process?

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The problem si that I need to execute commands on the console of that process

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To execute server commands from a "console" I'll render on the front

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This can't be done using the .sh option neither...

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Ok I'm fucked I think

blissful niche May 23, 2025, 8:13 PM

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hollow idol After thinking about this fro some time, is there any restriction when running c...

No, on the backend you're working with plain rust.

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And what you're thinking about is in theory possible, this is exactly how tauri's shell plugin works. It's implemented in rust as well with a small js layer sending/receiving data from the command spawned on the rust side.

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p.s. you can extend the scope at runtime via https://docs.rs/tauri/latest/tauri/trait.Manager.html#method.add_capability. I'd like to extend the plugin to have something easier, similar to how the fs scope can be extended but never got to it so far.

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using bash / cmd.exe as the actual command with args: true is a common workaround, so you were right with that idea as well

hollow idol May 23, 2025, 8:50 PM

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blissful niche And what you're thinking about is in theory possible, this is exactly how tauri'...

Is there any guide or example on how to get and "connect" to a process using the PID?

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If you meant that. You said what I was thinking is possible but I don't know if you meant the get by PID or the create a file and use it xD

blissful niche May 24, 2025, 9:18 PM

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Neither, i meant more like the general ideas.

For the PID thing: Remember, your frontend is inside the browser's sandbox so you can't connect to any outside processes from js directly. What i meant is that you spawn the Command on the rust side and use tauri's event system to send/receive stdio to/from the frontend.
For the file thing: No need for a file if all you want is freedom from the permissions. Use sh or something as the Command so you end up with sh /c the-actual-command

#Execute anything with .spawn() with shell plugin.