[bug#61363] [PATCH v3] self: Apply grafts to the outputs of the guix derivation.

[Christopher Baines]

Simon Tournier <zimon.toutoune@gmail.com> writes:

> Hi Chris,
>
> I am late to the party and probably do not well understand all that
> part.  Just a quick comment in the same direction as Ludo.
>
> On Mon, 17 Apr 2023 at 15:59, Christopher Baines <mail@cbaines.net> wrote:
>
>> diff --git a/guix/self.scm b/guix/self.scm
>> index 74c953bd50..bbc0beaca8 100644
>> --- a/guix/self.scm
>> +++ b/guix/self.scm
>
> [...]
>
>> +           (if graft?
>> +               (explicit-grafting obj
>> +                                  (map (compose force cdr) %packages))
>> +               obj)))
>
> [...]
>
>> +           (if graft?
>> +               (explicit-grafting obj
>> +                                  (map (compose force cdr) %packages))
>> +               obj)))
>
> It means that the grafts are only applied to %packages, right?
>
> Other said, defined by:
>
> (define %packages
>   (let ((ref (lambda (module variable)
>                (delay
>                  (module-ref (resolve-interface
>                               `(gnu packages ,module))
>                              variable)))))
>     `(("guile"              . ,(ref 'guile 'guile-3.0-latest))
>       ("guile-avahi"        . ,(ref 'guile-xyz 'guile-avahi))
>       ("guile-json"         . ,(ref 'guile 'guile-json-4))
>       ("guile-ssh"          . ,(ref 'ssh   'guile-ssh))
>       ("guile-git"          . ,(ref 'guile 'guile-git))
>       ("guile-semver"       . ,(ref 'guile-xyz 'guile-semver))
>       ("guile-lib"          . ,(ref 'guile-xyz 'guile-lib))
>       ("guile-sqlite3"      . ,(ref 'guile 'guile-sqlite3))
>       ("guile-zlib"         . ,(ref 'guile 'guile-zlib))
>       ("guile-lzlib"        . ,(ref 'guile 'guile-lzlib))
>       ("guile-zstd"         . ,(ref 'guile 'guile-zstd))
>       ("guile-gcrypt"       . ,(ref 'gnupg 'guile-gcrypt))
>       ("guile-gnutls"       . ,(ref 'tls 'guile-gnutls))
>       ("guix-daemon"        . ,(ref 'package-management 'guix-daemon))
>       ("disarchive"         . ,(ref 'backup 'disarchive))
>       ("guile-lzma"         . ,(ref 'guile 'guile-lzma))
>       ("gzip"               . ,(ref 'compression 'gzip))
>       ("bzip2"              . ,(ref 'compression 'bzip2))
>       ("xz"                 . ,(ref 'compression 'xz))
>       ("po4a"               . ,(ref 'gettext 'po4a))
>       ("gettext-minimal"    . ,(ref 'gettext 'gettext-minimal))
>       ("gcc-toolchain"      . ,(ref 'commencement 'gcc-toolchain))
>       ("glibc-utf8-locales" . ,(ref 'base 'glibc-utf8-locales))
>       ("graphviz"           . ,(ref 'graphviz 'graphviz))
>       ("texinfo"            . ,(ref 'texinfo 'texinfo)))))
>
> tweaked by e5c33837cbee98d460d9ae09b463501de6f15d97.  And there is a
> slippery slope: the manual addition.  These had been added with
> e5c33837cbee98d460d9ae09b463501de6f15d97:
>
>     + ("glibc-utf8-locales" . ,(ref 'base               'glibc-utf8-locales))
>     + ("graphviz"           . ,(ref 'graphviz           'graphviz))
>     + ("guix-daemon"        . ,(ref 'package-management 'guix-daemon))
>     + ("texinfo"            . ,(ref 'texinfo            'texinfo)))))
>
> Other said, what does it happen if we forget to manually update this
> list?

Well, specification->package in (guix self) won't work for the missing
packages.

It's possible to use packages outside of this list, but that doesn't
happen currently.

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