bug#44625: [PATCH] gnu: Add b4.

[Christopher Baines <mail@cbaines.net>]

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Kyle Meyer <kyle@kyleam.com> writes:

> * gnu/packages/version-control.scm (b4): New variable.
> ---
>
>   b4 is focused on lore.kernel.org public-inbox archives, but it's useful for
>   any public-inbox [1] instance, including yhetil.org/guix-patches :).  Here's
>   an example with a recent multi-patch thread that involves multiple versions.
>
>     $ # in the guix repo
>     $ git config b4.attestation-policy off
>     $ git config b4.midmask https://yhetil.org/guix-patches/%s
>     $ b4 am 20201028165112.28575-1-zimon.toutoune@gmail.com
>
>   The end result is a filtered mbox with the v2 patches.  Also, because the
>   sender helpfully included the base commit, `b4 am' will use that information
>   in the instructions that it outputs.
>
>   If the above sounds useful to you but you'd prefer to work in Emacs, you
>   might be interested in piem (<https://git.kyleam.com/piem/about/>), which
>   includes a transient (i.e magit-popup's successor) interface to b4.
>
>   [1] https://public-inbox.org/
n>
>  gnu/packages/version-control.scm | 41 ++++++++++++++++++++++++++++++++
>  1 file changed, 41 insertions(+)
>
> diff --git a/gnu/packages/version-control.scm b/gnu/packages/version-control.scm
> index 16c70bd1a7..de7c961cea 100644
> --- a/gnu/packages/version-control.scm
> +++ b/gnu/packages/version-control.scm
> @@ -2301,6 +2301,47 @@ (define-public grokmirror
>  based on a manifest file published by servers.")
>      (license license:gpl3+)))
>  
> +(define-public b4
> +  (package
> +    (name "b4")
> +    (version "0.5.2")
> +    (source
> +     (origin
> +       (method git-fetch)
> +       (uri (git-reference
> +             (url "https://git.kernel.org/pub/scm/utils/b4/b4.git")
> +             (commit (string-append "v" version))))
> +       (file-name (string-append name "-" version "-checkout"))
> +       (sha256
> +        (base32 "1w11fiyspyncz2m7njrjfylgzch4azi7560ngd8i733wvjjhg3mj"))))
> +    (build-system python-build-system)
> +    (arguments
> +     `(#:tests? #f                      ; No tests.
> +       #:phases
> +       (modify-phases %standard-phases
> +         (add-after 'install 'install-manpages
> +           (lambda* (#:key outputs #:allow-other-keys)
> +             (let ((man (string-append (assoc-ref outputs "out")
> +                                       "/man/man5/")))
> +               (mkdir-p man)
> +               (for-each (lambda (file) (install-file file man))
> +                         (find-files "man" "\\.[1-8]$")))
> +             #t)))))
> +    (inputs
> +     `(("python-requests" ,python-requests)))
> +    (home-page "https://git.kernel.org/pub/scm/utils/b4/b4.git")
> +    (synopsis "Tool for working with patches in public-inbox archives")
> +    (description "The @code{b4} command is designed to make it easier to
> +participate in patch-based workflows for projects that have public-inbox
> +archives.  Features include
> +@itemize
> +@item downloading a thread's mbox given a message ID
> +@item processing an mbox so that is ready to be fed to @code{git-am}
> +@item creating templated replies for processed patches and pull requests
> +@item submitting cryptographic attestation for patches.
> +@end itemize")
> +    (license license:gpl2+)))
> +
>  (define-public git-annex-remote-rclone
>    (package
>      (name "git-annex-remote-rclone")
>
> base-commit: 4e9b2e8ba26dd601df67f112852237d5df2f3341

Thanks Kyle, I tweaked the formatting of the description, just adding a
newline as I thought it looked better, and pushed this to master as
3b77ba78684e201382b1c28f2618252205891568.

Thanks again,

Chris

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