Is it possible to fix the 'empty line on terminal open' issue in this xontrib?

[StanSvec]

Starship prompt by default prints empty line when the terminal starts. This issue is reported here and here. Despite both issues are closed the problem hasn't been fixed yet. I'm wondering if that's something which can be additionally fixed in this xontrib? Thanks!

[anki-code]

Try to cut empty line here:

https://github.com/anki-code/xontrib-prompt-starship/blob/00e7c8bd1131b28aae94822c2b44d5f0a1e72a7c/xontrib/prompt_starship.py#L11-L16

i.e. "Using starship cross-shell prompt to rendering right sections" in xontrib-prompt-bar

[StanSvec]

Oh so simple, thanks! I came up with a naive solution:

_FIRST_PROMPT = True

def _starship_prompt(cfg=None):
    global _FIRST_PROMPT
    with __xonsh__.env.swap({'STARSHIP_CONFIG': cfg} if cfg else {}):
        prompt = __xonsh__.subproc_captured_stdout([
            'starship', 'prompt',
            '--status', str(int( __xonsh__.history[-1].rtn)) if len(__xonsh__.history) > 0 else '0',
            '--cmd-duration' , str(int((__xonsh__.history[-1].ts[1] - __xonsh__.history[-1].ts[0])*1000)) if len(__xonsh__.history) > 0 else '0',
            '--jobs', str(len(__xonsh__.all_jobs))
        ])
    if _FIRST_PROMPT:
        _FIRST_PROMPT = False
        return prompt.lstrip()
    return prompt

Works fine unless the screen is cleared (Ctrl + L). Is there a way how to detect execution of the clear command, so I could add one more condition for the left strip? Thanks!

[anki-code]

I think you're using prompt toolkit for $SHELL and the first way is to search there.

[StanSvec]

Hmm, I didn't even know that prompt toolkit provides shell functionality, because I don't have any experience with this library. Is it possible to access ptk's API somehow from the prompt_starship.py file please?