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From: Roman Perepelitsa <roman.perepelitsa@gmail.com>
To: Sebastian Gniazdowski <sgniazdowski@gmail.com>
Cc: Zsh hackers list <zsh-workers@zsh.org>
Subject: Re: -C -like option to change CWD on startup
Date: Thu, 2 Feb 2023 10:05:10 +0100	[thread overview]
Message-ID: <CAN=4vMpm=cHbt05rOQZLkRZctKc=t+jocZ4rWsgmziBs_sK5Bw@mail.gmail.com> (raw)
In-Reply-To: <CAKc7PVDN+HfQ=qFatNcWFiNRiTMtpAi6FXhXNqdQ1SRxHj1vcw@mail.gmail.com>

On Thu, Feb 2, 2023 at 9:57 AM Sebastian Gniazdowski
<sgniazdowski@gmail.com> wrote:
>
> Hi,
> make and git have the -C option which works like:
> (
>    builtin cd -q $COPT
>    git/make "$@"
> )
>
> I think that it is very useful, because no lengthy subshell is needed. Zsh doesn't have such option, could it be added? It's pitty that -C is already used by NO_CLOBBER, but maybe some other letter is free (I didn't found any)?

You can do this:

    zsh-in-dir() ( builtin cd -q -- "$1" && builtin exec zsh "${@:2}" )

This forks and execs once, the same as if there was a native `-C dir` option.

Note that your original code has the same performance thanks to an
optimization in zsh. The second fork is elided.

Roman.


  reply	other threads:[~2023-02-02  9:05 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-02-02  8:55 Sebastian Gniazdowski
2023-02-02  9:05 ` Roman Perepelitsa [this message]
2023-02-02  9:31   ` Sebastian Gniazdowski

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