Re: Combine multiple (straight-)use-package commands into one.

[Hongyi Zhao <hongyi.zhao@gmail.com>]

On Sun, Jun 13, 2021 at 6:22 PM Thibaut Verron <thibaut.verron@gmail.com> wrote:
>
> On 12/06/2021 16:57, Hongyi Zhao wrote:
> > 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.
>
> I don't understand what you don't like about this code: as far as I know
> (straight-use-package 'foo) is strictly equivalent to (use-package foo
> :straight t), and with straight-use-package-by-default you don't need
> the :straight t.
>
> Why is it such a problem to have straight-use-package in this loop
> instead of use-package?

Just out of curiosity to learn Lisp's ability: understanding and grasp
different methods for the same job.

>
> One confusion which took me quite a long time to clear, is that despite
> the similar names, straight-use-package and use-package have very
> different purposes: straight-use-package is for installing the package
> (similar to package-install) while use-package is for grouping together
> everything related to a package (this includes installation, either by
> straight or package.el,

AFAIK, straight is not compatible with package.el, see
<https://github.com/raxod502/straight.el/issues/786#issuecomment-859155336>
for more detailed info.

> but also initialization, configuration,
> bindings...). Could it be your problem as well?
>
> Best wishes,
>
> Thibaut
>


-- 
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