bug#26625: [PATCH] gnu : Add unshield.

[Marius Bakke <mbakke@fastmail.com>]

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manolis837@gmail.com writes:

> * gnu/packages/compression.scm (unshield): New variable.

[...]

> @@ -40,6 +41,7 @@
>    #:use-module (guix build-system gnu)
>    #:use-module (guix build-system perl)
>    #:use-module (guix build-system python)
> +  #:use-module (guix build-system cmake)
>    #:use-module (gnu packages)
>    #:use-module (gnu packages assembly)
>    #:use-module (gnu packages autotools)
> @@ -50,6 +52,7 @@
>    #:use-module (gnu packages pkg-config)
>    #:use-module (gnu packages python)
>    #:use-module (gnu packages valgrind)
> +  #:use-module (gnu packages tls)

Please try to keep module imports, inputs, etc alphabetically sorted,
when they are so from before.
  
> +(define-public unshield
> +  (package
> +    (name "unshield")
> +    (version "1.4.2")
> +    (source
> +     (origin (method url-fetch)
> +             (uri (string-append "http://github.com/twogood/unshield/archive/"
> +                                 version ".tar.gz"))
> +             (sha256
> +              (base32
> +               "0x7ps644yp5dka2zhb8w0ifqmw3d255jafpzfwv8xbcpgq6fmm2x"))))
> +    (build-system cmake-build-system)
> +    (inputs
> +     `(("zlib" ,zlib)
> +       ("openssl" ,openssl)))
> +    (arguments
> +     `(#:tests? #f)) ; no test target

There is a test script shipped with the source, can you try replacing
the "check" phase with code that executes "./run_tests"?

> +    (home-page "https://github.com/twogood/unshield")
> +    (synopsis "Tool to extract CAB files.")
> +    (description "Extracts CAB files from InstallShield installers")

So synopses should not end with punctuations, but descriptions do. `guix
lint` should warn about this. It would be good to have a little more
information here as well.

Maybe something like this (minimal variant):

(synopsis "Extract CAB files from InstallShield installers")
(description
 "@command{unshield} is a tool and library for extracting @file{.cab}
 archives from InstallShield installers.")

If this software works with the "normal" .cab files commonly found in MS
Windows systems, it would be good to encapsulate that information too.
Otherwise LGTM.

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