bug#74656: [wip-zig-bootstrap] zig cache is not updated for dependencies of dependencies

["Noé Lopez via Bug reports for GNU Guix" <bug-guix@gnu.org>]

Hi,

Its working well with your changes, do you plan on keeping the snippet
syntax for every package?  It seems like a lot of boilerplate.

Personally I like the #:zig-inputs syntax better, why not keep it and do
the snippet in zig-build-system ?

Thanks,
Noé

Hilton Chain <hako@ultrarare.space> writes:

> Hi Noé,
>
> On Tue, 03 Dec 2024 05:15:44 +0800,
> Noé Lopez wrote:
>>
>> [1  <text/plain; utf-8 (quoted-printable)>]
>> Hi,
>>
>> I got my hands on packaging liskvork, a gomoku server.  The build fails
>> because dependencies of dependencies are not added to the zig cache, and so
>> can’t be found correctly by the zig build system.
>>
>> I attached a patch that reproduces this, a workaround when reproducing the
>> steps in a local checkout is to call “zig fetch” on the missing dependencies:
>>
>> $ zig fetch /gnu/store/j0x1vl6w2vgr3fz60l4jgyx5gx53af61-zig-httpz-0-0.7d2ddae/src/zig-httpz-0-0.7d2ddae --save=httpz
>> warning: overwriting existing dependency named 'httpz'
>> $ zig build --summary all
>> /home/noe/.cache/zig/p/1220476906a8f57d6cbaaaeb05d44a41311a5bb6ca74bb86bc3aa1467506c241b29b/build.zig.zon:7:20: error: invalid URI: UnexpectedCharacter
>> $ zig fetch /gnu/store/59w4s1g1y4vy4gw3mwn9fjsfcqc5454i-zig-metrics-0-0.fcf9e94/src/zig-metrics-0-0.fcf9e94 --save=metrics
>> $ zig fetch /gnu/store/izxqkxplp7alrh0n3c8j8cv277nqa04a-zig-websocket-0-0.cf89cb8/src/zig-websocket-0-0.cf89cb8 --save=websocket
>> $ zig build --summary all
>> Build Summary: 5/5 steps succeeded
>> install success
>> +- install liskvork success
>>    +- zig build-exe liskvork Debug native-native success 3s MaxRSS:276M
>>       +- options cached
>>       +- options cached
>>
>> This has the issue of adding the packages to build.zig.zon, so a better
>> solution is required.
>>
>> I’m attaching the patch with the liskvork package and dependencies. The error
>> can be reproduced with “./pre-inst-env guix build liskvork”.
>>
>> Have a nice day,
>> Noé
>
> Good example, that's the current limitation of #:zig-inputs, and I'm planning to
> remove it.
>
> Please apply the attached patch onto your change.
>
> Thanks
> diff --git a/gnu/packages/zig-xyz.scm b/gnu/packages/zig-xyz.scm
> index 027377fa1b..b98a160e27 100644
> --- a/gnu/packages/zig-xyz.scm
> +++ b/gnu/packages/zig-xyz.scm
> @@ -186,11 +186,20 @@ (define-public zig-logz
>                  (file-name (git-file-name name version))
>                  (sha256
>                   (base32
> -                  "01xihyvyx3rpv0kvjh6mg1b99d6agq683q4iyn39nwqb6ma0i0sz"))))
> +                  "01xihyvyx3rpv0kvjh6mg1b99d6agq683q4iyn39nwqb6ma0i0sz"))
> +                (modules '((guix build utils)))
> +                (snippet
> +                 #~(for-each
> +                    (lambda (dep)
> +                      (substitute* "build.zig"
> +                        (((string-append "(b\\.dependency.\")" (car dep)) _ prefix)
> +                         (string-append prefix (cdr dep))))
> +                      (substitute* "build.zig.zon"
> +                        (((string-append "\\." (car dep)))
> +                         (format #f ".@\"~a\"" (cdr dep)))))
> +                    '(("metrics" . "zig-metrics"))))))
>        (build-system zig-build-system)
> -      (arguments
> -       (list
> -        #:zig-inputs `(("metrics" ,zig-metrics))))
> +      (propagated-inputs (list zig-metrics))
>        (home-page "https://github.com/karlseguin/log.zig")
>        (synopsis "Structured Logging for Zig")
>        (description "logz is an opinionated structured logger that outputs to stdout,
> @@ -265,12 +274,21 @@ (define-public zig-httpz
>                (file-name (git-file-name name version))
>                (sha256
>                 (base32
> -                "02hixvyx1r04lg0nzvhkyrqwcwm8m8rs8hm01n2nzw6jv935frh8"))))
> +                "02hixvyx1r04lg0nzvhkyrqwcwm8m8rs8hm01n2nzw6jv935frh8"))
> +              (modules '((guix build utils)))
> +              (snippet
> +               #~(for-each
> +                  (lambda (dep)
> +                    (substitute* "build.zig"
> +                      (((string-append "(b\\.dependency.\")" (car dep)) _ prefix)
> +                       (string-append prefix (cdr dep))))
> +                    (substitute* "build.zig.zon"
> +                      (((string-append "\\." (car dep)))
> +                       (format #f ".@\"~a\"" (cdr dep)))))
> +                  '(("metrics" . "zig-metrics")
> +                    ("websocket" . "zig-websocket"))))))
>      (build-system zig-build-system)
> -    (arguments
> -     (list #:zig-inputs
> -           `(("metrics" ,zig-metrics)
> -             ("websocket" ,zig-websocket))))
> +    (propagated-inputs (list zig-metrics zig-websocket))
>      (home-page "https://github.com/karlseguin/http.zig")
>      (synopsis "HTTP/1.1 server for Zig")
>      (description "")
> @@ -288,16 +306,26 @@ (define-public liskvork
>                (file-name (git-file-name name version))
>                (sha256
>                 (base32
> -                "1x7cif9wpaq7mk1pqmixq3flymrradb6zpx5qnmiihw699zr2xhw"))))
> +                "1x7cif9wpaq7mk1pqmixq3flymrradb6zpx5qnmiihw699zr2xhw"))
> +              (modules '((guix build utils)))
> +              (snippet
> +               #~(for-each
> +                  (lambda (dep)
> +                    (substitute* "build.zig"
> +                      (((string-append "(b\\.dependency.\")" (car dep)) _ prefix)
> +                       (string-append prefix (cdr dep))))
> +                    (substitute* "build.zig.zon"
> +                      (((string-append "\\." (car dep)))
> +                       (format #f ".@\"~a\"" (cdr dep)))))
> +                  '(("ini" . "zig-ini")
> +                    ("logz" . "zig-logz")
> +                    ("zul" . "zig-zul")
> +                    ("httpz" . "zig-httpz"))))))
>      (build-system zig-build-system)
>      (arguments
>       (list #:install-source? #f
> -           #:zig-release-type "safe"
> -           #:zig-inputs
> -           `(("ini" ,zig-ini)
> -             ("logz" ,zig-logz)
> -             ("zul" ,zig-zul)
> -             ("httpz" ,zig-httpz))))
> +           #:zig-release-type "safe"))
> +    (inputs (list zig-httpz zig-ini zig-logz zig-zul))
>      (home-page "https://liskvork.org")
>      (synopsis "Modern multi-platform gomoku game server.")
>      (description "liskvork is a modern Gomoku game server that is purpose-built for