[bug#29536] [PATCH] gnu: Add cava.

[Oleg Pykhalov <go.wigust@gmail.com>]

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Hello Ludovic,

Thank you for review!

ludo@gnu.org (Ludovic Courtès) writes:

>>>>From af48537fc5c6af11993db03004a937251d8d60e9 Mon Sep 17 00:00:00 2001
>> From: Oleg Pykhalov <go.wigust@gmail.com>
>> Date: Sat, 2 Dec 2017 22:36:36 +0300
>> Subject: [PATCH] gnu: Add cava.
>>
>> * gnu/packages/audio.scm (cava): New variable.
>
> [...]
>
>> +       (modify-phases %standard-phases
>> +         (add-after 'unpack 'bootstrap
>> +           (lambda _
>> +             (setenv "HOME" (getcwd))
>> +             (zero? (system* "sh" "autogen.sh"))))
>
> Please use ‘invoke’ instead of ‘system*’.

This is new.  OK, will use.  Thank you for notice!

>> +         (add-before 'build 'make-cava-ldflags
>> +           (lambda _ (mkdir-p (string-append (assoc-ref %outputs "out") "/lib"))))
>
> Please use:
>
>   (lambda* (#:key outputs #:allow-other-keys)
>     … outputs …)

Should be this?

    (lambda* (#:key outputs #:allow-other-keys)
      … (assoc-ref outputs "out") …)

>> +         (add-after 'install 'data
>> +           (lambda _ (for-each (lambda (file)
>> +                            (install-file file (string-append
>> +                                                (assoc-ref %outputs "out")
>> +                                                "/share/doc/examples")))
>> +                          (find-files "example_files")))))))
> Likewise.

OK.

>> +    (home-page "https://karlstav.github.io/cava/")
>> +    (synopsis "CLI audio visualizer for Alsa, MPD and Pulseaudio")
>
> Rather: “Console audio visualizer for ALSA, MPD, and PulseAudio”.

OK.

>> +    (description "@code{cava} provides a command line audio visualizer for
>> +MPD, Alsa and Pulseaudio.")
>
> Based on their README:
>
>   C.A.V.A. is a bar audio spectrum visualizer for the terminal using
>   ALSA, MPD, PulseAudio, or a FIFO buffer as its input.

OK.

> OK with these changes, thank you!

Pushed as c2c0d66162152b05fc42fdd1be5f07b9eca3bc66

Oleg.

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