GNU bug report logs - #28602
Unpack fails with no error message when using a .zip source

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From: zimoun <zimon.toutoune <at> gmail.com>
To: nee <nee <at> cock.li>
Cc: 28602 <at> debbugs.gnu.org
Subject: bug#28602: [core-updates] Unpack fails with no error message when using a .zip source
Date: Fri, 26 Nov 2021 02:49:04 +0100

Hi,

This patch [1] had been submitted in 2017 and fallen in the cracks.  The
code below requires improvement and I am not convinced by the feature.
Therefore closing?

<http://issues.guix.gnu.org/issue/28602


On Mon, 05 Jul 2021 at 13:46, zimoun <zimon.toutoune <at> gmail.com> wrote:
> On Mon, 09 Oct 2017 at 23:00, nee <nee <at> cock.li> wrote:

>> Hello here is a patch to fix this bug. It changes the gnu-build-system,
>> so the hashes of almost all packages will also change. I guess
>> core-updates is the right branch for this.
>>
>>>>From 089b9741a734f0682a671df6c0c36dfefcbd407c Mon Sep 17 00:00:00 2001
>> From: nee <nee.git <at> cock.li>
>> Date: Mon, 9 Oct 2017 22:49:12 +0200
>> Subject: [PATCH] guix: gnu-build-system: warn about missing unzip input during
>>  unpack.
>>
>> ---
>>  guix/build/gnu-build-system.scm | 17 ++++++++++++++++-
>>  1 file changed, 16 insertions(+), 1 deletion(-)
>>
>> diff --git a/guix/build/gnu-build-system.scm b/guix/build/gnu-build-system.scm
>> index e37b75140..c16d15964 100644
>> --- a/guix/build/gnu-build-system.scm
>> +++ b/guix/build/gnu-build-system.scm
>> @@ -67,6 +67,21 @@ See https://reproducible-builds.org/specs/source-date-epoch/."
>>                      #f
>>                      dir))
>>
>> +(define (unzip filepath)
>> +  "Unzip archive file.
>> +Warn the user when unzip fails and the executable is not present."
>> +  (define exit-code (system* "unzip" filepath))
>> +  (define program-not-found-code 32512)
>> +  (cond ((zero? exit-code) #t)
>> +        ((eqv? exit-code program-not-found-code)
>> +         (format (current-error-port)
>> +                 "warning: Archive with .zip suffix failed to unpack.
>> +Please add unzip as native-input to the package,
>> +e.g. (native-inputs `((\"unzip\" ,unzip)))")
>> +         (newline (current-error-port))
>> +         #f)
>> +        (else #f)))
>
> Give a look at 'invoke' from (guix build utils).
>
>>  (define* (set-paths #:key target inputs native-inputs
>>                      (search-paths '()) (native-search-paths '())
>>                      #:allow-other-keys)
>> @@ -154,7 +169,7 @@ working directory."
>>                            #:keep-mtime? #t)
>>          #t)
>>        (and (if (string-suffix? ".zip" source)
>> -               (zero? (system* "unzip" source))
>> +               (unzip source)
>>                 (zero? (system* "tar" "xvf" source)))
>>             (chdir (first-subdirectory ".")))))
>
> After 9a87649c863e1ff8b073b356875eb05eecedbcf7, this part uses 'invoke'.
> Instead of your 'unzip', the exception raised by 'invoke' should be
> catched and then should trigger the hint message.  WDYT?

Cheers,
simon

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