hs.execute returns nil for output

[tonycassara]

Mac OS Ventura 13.2
Hammerspoon 0.9.97

I'm running the script found here: https://github.com/cmer/lg-tv-control-macos/blob/main/lgtv.lua

And it seems on line 16: https://github.com/cmer/lg-tv-control-macos/blob/main/lgtv.lua#L16

The exec_command wrapper for hs.execute is not returning any output. I've tried packing and unpacking the result as well as printing directly from hs.execute to no avail. Does anyone know what's going on? I basically get a blank whitespace (tab?) in my console

[asmagill]

Ok, meant to post this here instead of in the other thread:

hs.execute returns 4 results and without knowing what those other result values are, it's hard to say what the problem is... (see http://www.hammerspoon.org/docs/hs.html#execute)

as a debugging measure, you could change line 16 to something like this:

    -- local foreground_app_info = exec_command("getForegroundAppInfo")
    local foreground_app_info, status, typ, rc = exec_command("getForegroundAppInfo")
    print(foreground_app_info, status, typ, rc)

This would show what the other values are. Ideally, the three additional values should be true, "exit", and 0 which would indicate that the command executed and exited properly.

If the number at the end is 127, then it means that the command isn't being found in the path (or the path, if fully specified, is wrong) or that the file doesn't have it's execute bit set. Other numbers would depend... if the program itself uses return codes to indicate problems, you'd need to look at its documentation or man pages; if the program doesn't use return codes, then check the man pages for bash or zsh, depending upon what your default terminal shell is.

[tonycassara]

@asmagill it was 127!! okay thank you that's a great clue. ill try reinstalling the application bin.

[tonycassara]

That was it, I installed the app in my root directory, not my user directory. Wow thank you!