bug#52807: Guix home executables are not executable

[Aleksandr Vityazev]

Hi,

On 2021-12-26, 12:03 -0500, "Nick Zalutskiy" <nick@const.fun> wrote:

>      I'd like to use `guix home` to symlink an executable into my home 
> directory. 
>
>      Following simple configuration stored at 
> `~/.dotfiles/home-configuration.scm`
>
>          (use-modules
>            (gnu home)
>            (gnu packages)
>            (gnu home services)
>            (gnu services)
>            (guix gexp)
>            (gnu home services shells))
>
>          (home-environment
>            (services
>              (list (service
>                      home-bash-service-type
>                      (home-bash-configuration
>                    (guix-defaults? #t)))
>                (simple-service 'my-files
>                        home-files-service-type
>                        `(("run" ,(local-file "run")))))))
>
>      `~/.dotfiles/run` is an executable file, after home reconfigure a 
> `~/.run` symlink is created,
>      however the file it is pointing to does _not_ have the execute bit set.
>
>      As a result, when I try to execute `~/.run` file I get a "Permission 
> denied" error.
>
>      Thank you,
>
>      -Nick
>
In the Guix manual you can find the following information about
local-file:

--8<---------------cut here---------------start------------->8---
-- Scheme Procedure: local-file FILE [NAME] [#:recursive? #f]
          [#:select? (const #t)]
          
When RECURSIVE? is true, the contents of FILE are added
     recursively; if FILE designates a flat file and RECURSIVE? is true,
     its contents are added, and its permission bits are kept.
--8<---------------cut here---------------end--------------->8---

So you can just do this:

#+begin_src scheme
(simple-service 'my-files
                home-files-service-type
                `(("run" ,(local-file "run" #:recursive? #t))))
#+end_src

-- 
Best regards,
Aleksandr Vityazev