[bug#62848] [PATCH v2] environment: Add --remote option and emacsclient-eshell backend.

[Liliana Marie Prikler <liliana.prikler@gmail.com>]

Am Dienstag, dem 07.11.2023 um 22:30 +0000 schrieb Antero Mejr:
> * guix/scripts/environment.scm (launch-environment/eshell): New
> procedure.
> (%remote-backends): New variable.
> (guix-environment*): Add logic for remote backend switching.
> (launch-envrionment)[white-list]: Change keyword argument name to
> 'allow-list'.
You have a typo here.  In general, should be (launch-environment):
Rename #:white-list to #:allow-list
> (launch-environment/fork)[white-list]: Change keyword argument name
> to
> 'allow-list'.
> (%options): Add --remote and --list-remote-backends options.
> (show-environment-options-help): Add help text for new options.
> * guix/profiles.scm (load-profile)[getenv-proc, setenv-proc,
> unsetenv-proc]:
> New optional keyword arguments.
> (load-profile)[white-list]: Change keyword argument name to 'allow-
> list'.
> (purify-environment)[white-list-regexps]: Change argument name to
> 'allow-list-regexps'.
> (purify-environment)[unsetenv-proc]: New argument.
> * guix/build/emacs-utils.scm (%emacsclient): New parameter.
> (emacsclient-batch-script): New procedure.
> * doc/guix.texi(Invoking guix shell): Document --remote and
> --list-remote-backends options.
> * tests/build-emacs-utils.scm(emacsclient-batch-script): New test.
> * tests/profiles.scm(load-profile): Change 'white-list' keyword
> argument to
> 'allow-list'.
> ---
> With requested changes from Maxim's review:
> Update white-list/allow-list terminology throughout.
> Always check for errors when invoking emacsclient.
> Simplify emacsclient invocation code by using the
> (guix build emacs-utils) module.
> Add new test to build-emacs-utils.scm for testing emacsclient.
You have merged two changes into one patch imho.  I think it'd be
better if you swapped the wording first and then added the emacsclient
code.

Interestingly, this still won't support emacs sans client IIUC as we
anyhow have to spawn a new process.  Can we (perhaps in cooperation
with guix-emacs) make it so that 'guix shell' spawned from eshell does
"the right thing"?

Cheers