From: Hongyi Zhao <hongyi.zhao@gmail.com>
To: Omar Polo <op@omarpolo.com>
Cc: help-gnu-emacs <help-gnu-emacs@gnu.org>
Subject: Re: Combine multiple (straight-)use-package commands into one.
Date: Sun, 13 Jun 2021 09:29:34 +0800 [thread overview]
Message-ID: <CAGP6POJuE8NsjcJJS3t9x96tfzVh2pgx35e-QiC72mK4zpTEeA@mail.gmail.com> (raw)
In-Reply-To: <87sg1nrrpz.fsf@omarpolo.com>
On Sun, Jun 13, 2021 at 12:08 AM Omar Polo <op@omarpolo.com> wrote:
>
>
> Hongyi Zhao <hongyi.zhao@gmail.com> writes:
>
> > On Sat, Jun 12, 2021 at 5:57 PM Hongyi Zhao <hongyi.zhao@gmail.com> wrote:
> >>
> >> On Ubuntu 20.04, according to the instruction
> >> [here](https://github.com/raxod502/straight.el/issues/786#issuecomment-859155336),
> >> I use the following settings in my Emacs init file:
> >>
> >> ```
> >> ;;Bootstrap straight
> >> (defvar bootstrap-version)
> >> (let ((bootstrap-file
> >> (expand-file-name "straight/repos/straight.el/bootstrap.el"
> >> user-emacs-directory))
> >> (bootstrap-version 5))
> >> (unless (file-exists-p bootstrap-file)
> >> (with-current-buffer
> >> (url-retrieve-synchronously
> >> "https://raw.githubusercontent.com/raxod502/straight.el/develop/install.el"
> >> 'silent 'inhibit-cookies)
> >> (goto-char (point-max))
> >> (eval-print-last-sexp)))
> >> (load bootstrap-file nil 'nomessage))
> >>
> >> ;; Install use-package via straight
> >> (straight-use-package 'use-package)
> >>
> >> ;; Setting this to `t' makes it so that you don't need to include the :straight
> >> ;; keyword in use-package declarations unless you want to add/extend the package
> >> ;; installation recipe.
> >>
> >> (setq straight-use-package-by-default t) ; straight's equivalent of
> >> `use-package-always-ensure'.
> >> ```
> >> Now, I want to install multiple package hosted in recipe repositories
> >> (such as MELPA) as shown below with only one (straight-)use-package
> >> command, is it possible?
> >> ```
> >> (use-package flycheck)
> >> (use-package lsp-mode)
> >> (use-package dash)
> >> (use-package posframe)
> >> (use-package s)
> >> (use-package ein)
> >> (use-package smartparens)
> >> (use-package valign)
> >> (use-package multi-term)
> >> ```
> >
> > Based on the code snippets at
> > <https://github.com/flakyhermit/emacs.d/blob/6b488895071e980433facf648f482974526d6a13/init.el#L22>,
> > I figured out the following solution with `straight-use-package'
> > command:
> >
> > (defvar package-list)
> > (setq package-list '(
> > flycheck lsp-mode dash posframe
> > s ein smartparens valign
> > multi-term
> > ))
> >
> > (mapc (lambda(package-name)
> > (straight-use-package package-name)) package-list)
> >
> > But I still don't know the corresponding implementation with
> > `use-package' command.
>
> C-h f use-package RET says that
>
> > use-package is a Lisp macro in ‘use-package-core.el’.
>
> being a macro and not a function[0], it means that it follows different
> rule for the evaluation. (use-package foo ...) is something that gets
> *expanded* at *compile time* in some other lisp code, it's not something
> you can pass to mapc. You need to expand the loop *at compile* time to
> load multiple packages, something like the following (untested)
>
> --------8<--------
> (defmacro use-multiple-packages (&rest packages)
> `(progn
> ,@(mapcar (lambda (p) `(use-package ,p))
> packages)))
>
> (use-multiple-pacakges foo
There is typo:
(use-multiple-packages foo
> bar
> baz
> ...)
> -------->8--------
Thank you. It works like a charm.
>
> but it becomes not useful, since the main point of use-package is IMHO
> the syntax sugar for adding hooks, bindings etc. If you don't care
> about that stuff, a simple loop over package-install/package-installed-p
> is probably enough.
>
> > Regards
>
> [0]: see (info "(elisp)macros") for more information about how elisp
> macros works.
--
Assoc. Prof. Hongyi Zhao <hongyi.zhao@gmail.com>
Theory and Simulation of Materials
Hebei Vocational University of Technology and Engineering
NO. 552 North Gangtie Road, Xingtai, China
next prev parent reply other threads:[~2021-06-13 1:29 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-12 9:57 Combine multiple (straight-)use-package commands into one Hongyi Zhao
2021-06-12 14:57 ` Hongyi Zhao
2021-06-12 16:08 ` Omar Polo
2021-06-13 1:29 ` Hongyi Zhao [this message]
2021-06-13 10:22 ` Thibaut Verron
2021-06-13 12:53 ` Hongyi Zhao
2021-06-13 13:29 ` Hongyi Zhao
2021-06-13 14:54 ` Thibaut Verron
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