Re: precmd hook invoked later than usual on very first prompt

Re: precmd hook invoked later than usual on very first prompt

[Roman Perepelitsa]

On Fri, Feb 5, 2021 at 6:59 PM Christian Parpart
<christian@parpart.family> wrote:
>
> Was i writing preexec? Oh sorry. I meant precmd of course.

Oh, I think I know what this is about. This is almost certainly not a
bug in zsh.

[bcc:zsh-workers]
[cc:zsh-users]

Do you print something to the terminal in precmd? If you can post the
code of the precmd hook, it would help.

Roman.

Re: precmd hook invoked later than usual on very first prompt

[Christian Parpart]

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Hi,

Yes indeed.

You can find it here:
https://github.com/christianparpart/contour/blob/master/contour-integration.zsh#L36

However, these VT sequences definitely won't work in other terminals. But
the general case should be clear. Only VT sequences are written to the
terminal that do not generate any text.

Best regards,
Christian Parpart.

On Fri, Feb 5, 2021, 19:02 Roman Perepelitsa <roman.perepelitsa@gmail.com>
wrote:

> On Fri, Feb 5, 2021 at 6:59 PM Christian Parpart
> <christian@parpart.family> wrote:
> >
> > Was i writing preexec? Oh sorry. I meant precmd of course.
>
> Oh, I think I know what this is about. This is almost certainly not a
> bug in zsh.
>
> [bcc:zsh-workers]
> [cc:zsh-users]
>
> Do you print something to the terminal in precmd? If you can post the
> code of the precmd hook, it would help.
>
> Roman.
>

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Re: precmd hook invoked later than usual on very first prompt

[Roman Perepelitsa]

On Fri, Feb 5, 2021 at 8:05 PM Christian Parpart
<christian@parpart.family> wrote:
>
> Hi,
>
> Yes indeed.
>
> You can find it here:
> https://github.com/christianparpart/contour/blob/master/contour-integration.zsh#L36

Thanks, this does help.

The first prompt you see is not actually a prompt. It just looks like
it. See https://github.com/romkatv/powerlevel10k#instant-prompt. It's
the same trick that some mobile operating systems and web browsers use
when they show a picture of the app/website while it's still loading.

To solve your problem you can embed '\e[?2027l' and '\e[>M' in the
prompt (you can leave '\e]7;'$(pwd)'\e\\' in precmd although I would
recommend getting rid of the fork to speed up your prompt [1]). Here's
one way to do it:

    POWERLEVEL9K_DIR_PREFIX=$'%{\e[?2027l\e[>M%}'

Depending on your actual config this may or may not work. A proper
solution would be to open a feature request against powerlevle10k so
that your terminal gets first class support (it's not the only
terminal that uses marks of this sort).

Roman.

[1]: printf '\e]7;%s\e\\' $PWD >$TTY

Re: precmd hook invoked later than usual on very first prompt

[Christian Parpart]

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Thanks man,
I will try it out and also contact p10k devs about a supportive middle
ground.

Have a great weekend,
Christian Parpart.

On Fri, Feb 5, 2021, 20:33 Roman Perepelitsa <roman.perepelitsa@gmail.com>
wrote:

> On Fri, Feb 5, 2021 at 8:05 PM Christian Parpart
> <christian@parpart.family> wrote:
> >
> > Hi,
> >
> > Yes indeed.
> >
> > You can find it here:
> >
> https://github.com/christianparpart/contour/blob/master/contour-integration.zsh#L36
>
> Thanks, this does help.
>
> The first prompt you see is not actually a prompt. It just looks like
> it. See https://github.com/romkatv/powerlevel10k#instant-prompt. It's
> the same trick that some mobile operating systems and web browsers use
> when they show a picture of the app/website while it's still loading.
>
> To solve your problem you can embed '\e[?2027l' and '\e[>M' in the
> prompt (you can leave '\e]7;'$(pwd)'\e\\' in precmd although I would
> recommend getting rid of the fork to speed up your prompt [1]). Here's
> one way to do it:
>
>     POWERLEVEL9K_DIR_PREFIX=$'%{\e[?2027l\e[>M%}'
>
> Depending on your actual config this may or may not work. A proper
> solution would be to open a feature request against powerlevle10k so
> that your terminal gets first class support (it's not the only
> terminal that uses marks of this sort).
>
> Roman.
>
> [1]: printf '\e]7;%s\e\\' $PWD >$TTY
>

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