bug#68394: [PATCH python-team] gnu: python: Make the build reproducible.

[Maxim Cournoyer <maxim.cournoyer@gmail.com>]

Hi Tomas,

Tomas Volf <~@wolfsden.cz> writes:

> While python build was reproducible on a single machine, once multiple
> file systems entered the picture, it was no longer true.  My local builds on
> BTRFS differed from build on ext4 done in a virtual machine.
>
> The solution adopted by the upstream (and debian) was cherry-picked.  With
> this patch, build on my machine (BTRFS) and in a guix system vm (ext4) produce
> the same store item.
>
> More info: https://github.com/python/cpython/pull/8226
>
> * gnu/packages/python.scm (python-3.10)[source]: Apply reproducibility patch.
>
> Change-Id: I0273dc0f8511a7acdcc2b462a26cc29a9756c801

I've pushed a variant of this on to core-updates in commit e84519a949
("gnu: python: Make the build reproducible."), thank you!

> ---
> Use patch directly from the upstream.
>
>  gnu/packages/python.scm | 21 +++++++++++++++------
>  1 file changed, 15 insertions(+), 6 deletions(-)
>
> diff --git a/gnu/packages/python.scm b/gnu/packages/python.scm
> index 51d5f598d7..c92ac720a5 100644
> --- a/gnu/packages/python.scm
> +++ b/gnu/packages/python.scm
> @@ -428,12 +428,21 @@ (define-public python-3.10
>                (method url-fetch)
>                (uri (string-append "https://www.python.org/ftp/python/"
>                                    version "/Python-" version ".tar.xz"))
> -              (patches (search-patches
> -                        "python-3-arm-alignment.patch"
> -                        "python-3-deterministic-build-info.patch"
> -                        "python-3-fix-tests.patch"
> -                        "python-3-hurd-configure.patch"
> -                        "python-3-search-paths.patch"))
> +              (patches
> +               (cons*
> +                ;; https://github.com/python/cpython/pull/8226
> +                (origin
> +                  (method url-fetch)
> +                  (uri "https://github.com/python/cpython/commit/6c8ea7c1dacd42f3ba00440231ec0e6b1a38300d.patch")
> +                  (sha256
> +                   (base32
> +                    "13llngsyskp4c9j8lwqqpwp7h07mxai734zk1i387z8g261jk46v")))

I've opted to keep the patch local, which has been discussed as
preferred in the past (I think for reliability -- they don't disappear).

-- 
Thanks,
Maxim