Lilypond version

Lilypond version

[Mason Hock]

I notice that Guix has Lilypond 2.19.58, which is the current unstable
version. Is it possible to access the current stable version, Lilypond
2.18.2, via Guix?

Thank you.

Lilypond version

[Martin Castillo]

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I currently have no access to a system with guix installed, but did you try
$ guix package install lilypond@2.18.2
?

Martin

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Re: Lilypond version

[Ricardo Wurmus]

Mason Hock <masonhock@gmail.com> writes:

> I notice that Guix has Lilypond 2.19.58, which is the current unstable
> version. Is it possible to access the current stable version, Lilypond
> 2.18.2, via Guix?

It has not been packaged, but it should not be difficult to add a
variant for the stable version by inheriting from the “lilypond” package
definition and overriding the version and source fields.  You can add a
module defining such a package to your GUIX_PACKAGE_PATH (see the manual
for more information about how to use this feature).

Something like this might work (untested):

--8<---------------cut here---------------start------------->8---
;;; This file is not part of GNU Guix but is distributed under the same
;;; license as GNU Guix.

(define-module (custom packages variants)
  #:use-module (guix utils)
  #:use-module (guix packages)
  #:use-module (guix download)
  #:use-module (gnu packages)
  #:use-module (gnu packages music))

(define lilypond-stable
  (package (inherit lilypond)
    (version "2.18.2")
    (source (origin
              (method url-fetch)
              (uri (string-append
                    "http://download.linuxaudio.org/lilypond/sources/v"
                    (version-major+minor version) "/"
                    name "-" version ".tar.gz"))
              (sha256
               (base32
                "01xs9x2wjj7w9appaaqdhk15r1xvvdbz9qwahzhppfmhclvp779j"))))))
--8<---------------cut here---------------end--------------->8---

After putting this in $GUIX_PACKAGE_PATH/custom/packages/variants.scm
and setting GUIX_PACKAGE_PATH you should be able to install it with

    guix package -i lilypond@2.18

Hope this helps!

--
Ricardo

GPG: BCA6 89B6 3655 3801 C3C6  2150 197A 5888 235F ACAC
https://elephly.net

Re: Lilypond version

[Ricardo Wurmus]

Martin Castillo <castilma@uni-bremen.de> writes:

> I currently have no access to a system with guix installed, but did you try
> $ guix package install lilypond@2.18.2
> ?

This would require a package definition for that version of lilypond and
we don’t have that.  My instructions for GUIX_PACKAGE_PATH would add
such a package definition locally.

PS: the command would be “guix package --install lilypond@2.18.2”

-- 
Ricardo
 
GPG: BCA6 89B6 3655 3801 C3C6  2150 197A 5888 235F ACAC
https://elephly.net

Re: Lilypond version

[Ricardo Wurmus]

Mason Hock <masonhock@gmail.com> writes:

> Thanks for your response. GUIX_PACKAGE_PATH is currently my home folder.
> Am I supposed to create custom/packages/variants.scm or should I set
> GUIX_PACKAGE_PATH to something else?

I suggest not to set GUIX_PACKAGE_PATH to HOME.  Better create an empty
directory “$HOME/custom-guix-things” and create the directory structure
there, so you’d have

    $HOME/custom-guix-things/custom/packages/variants.scm

and GUIX_PACKAGE_PATH pointing to “$HOME/custom-guix-things”.

The file “variants.scm” would define the module “(custom packages
variants)”.

--
Ricardo

GPG: BCA6 89B6 3655 3801 C3C6  2150 197A 5888 235F ACAC
https://elephly.net

Re: Lilypond version

[Ricardo Wurmus]

Mason Hock <masonhock@gmail.com> writes:

> Thank you. How do I set GUIX_PACKAGE_PATH?

By exporting it as an environment variable:

    export GUIX_PACKAGE_PATH=/path/to/somewhere

-- 
Ricardo

GPG: BCA6 89B6 3655 3801 C3C6  2150 197A 5888 235F ACAC
https://elephly.net

Re: Lilypond version

[Ricardo Wurmus]

Hi,

please keep help-guix in Cc.

> Thanks. After following your steps I get
>
> guix package: warning: failed to load '(custom packages variants)':
> ERROR: Unbound variable: name
> guix package: error: lilypond: package not found for version 2.18

Okay, this means that we need to add the name field, because it is
referenced in source -> origin -> uri.

--8<---------------cut here---------------start------------->8---
(define lilypond-stable
  (package (inherit lilypond)
    (name "lilypond")
    (version "2.18.2")
    (source (origin
              (method url-fetch)
              (uri (string-append
                    "http://download.linuxaudio.org/lilypond/sources/v"
                    (version-major+minor version) "/"
                    name "-" version ".tar.gz"))
              (sha256
               (base32
                "01xs9x2wjj7w9appaaqdhk15r1xvvdbz9qwahzhppfmhclvp779j"))))))
--8<---------------cut here---------------end--------------->8---

-- 
Ricardo

GPG: BCA6 89B6 3655 3801 C3C6  2150 197A 5888 235F ACAC
https://elephly.net

Re: Lilypond version

[Mason Hock]

Thank you. The first error is gone, but I still get

guix package: error: lilypond: package not found for version 2.18

Any ideas?

On Sun, 2017-08-20 at 08:22 +0200, Ricardo Wurmus wrote:
> Hi,
> 
> please keep help-guix in Cc.
> 
> > Thanks. After following your steps I get
> >
> > guix package: warning: failed to load '(custom packages variants)':
> > ERROR: Unbound variable: name
> > guix package: error: lilypond: package not found for version 2.18
> 
> Okay, this means that we need to add the name field, because it is
> referenced in source -> origin -> uri.
> 
> --8<---------------cut here---------------start------------->8---
> (define lilypond-stable
>   (package (inherit lilypond)
>     (name "lilypond")
>     (version "2.18.2")
>     (source (origin
>               (method url-fetch)
>               (uri (string-append
>                     "http://download.linuxaudio.org/lilypond/sources/v"
>                     (version-major+minor version) "/"
>                     name "-" version ".tar.gz"))
>               (sha256
>                (base32
>                 "01xs9x2wjj7w9appaaqdhk15r1xvvdbz9qwahzhppfmhclvp779j"))))))
> --8<---------------cut here---------------end--------------->8---
> 

Re: Lilypond version

[Ricardo Wurmus]

Mason Hock <masonhock@gmail.com> writes:

> Thank you. The first error is gone, but I still get
>
> guix package: error: lilypond: package not found for version 2.18

Are there any other error messages?  It does work for me, so there are
probably other error messages that lead to a failure to evaluate the
custom module, or GUIX_PACKAGE_PATH is incorrect.

--
Ricardo

GPG: BCA6 89B6 3655 3801 C3C6  2150 197A 5888 235F ACAC
https://elephly.net

Re: Lilypond version

[Mason Hock]

Running
$ export GUIX_PACKAGE_PATH=~/Guix
$ echo $GUIX_PACKAGE_PATH
produces "/home/<user>/Guix". The file is saved as
"/home/<user>/Guix/custom/packages/variants.scm".

Then running
$ guix package --install lilypond@2.18
or 
$ guix package --verbose --install lilypond@2.18
produces only that one error: "guix package: error: lilypond: package
not found for version 2.18"

Here's what I have in variants.scm, in case I did something wrong there:

------------------------------------------------------------------------
;;; This file is not part of GNU Guix but is distributed under the same
;;; license as GNU Guix.

(define-module (custom packages variants)
  #:use-module (guix utils)
  #:use-module (guix packages)
  #:use-module (guix download)
  #:use-module (gnu packages)
  #:use-module (gnu packages music))

(define lilypond-stable
  (package (inherit lilypond)
    (name "lilypond")
    (version "2.18.2")
    (source (origin
              (method url-fetch)
              (uri (string-append
                    "http://download.linuxaudio.org/lilypond/sources/v"
                    (version-major+minor version) "/"
                    name "-" version ".tar.gz"))
              (sha256
               (base32

"01xs9x2wjj7w9appaaqdhk15r1xvvdbz9qwahzhppfmhclvp779j"))))))
------------------------------------------------------------------------

On Mon, 2017-09-04 at 14:43 +0200, Ricardo Wurmus wrote:
> Mason Hock <masonhock@gmail.com> writes:
> 
> > Thank you. The first error is gone, but I still get
> >
> > guix package: error: lilypond: package not found for version 2.18
> 
> Are there any other error messages?  It does work for me, so there are
> probably other error messages that lead to a failure to evaluate the
> custom module, or GUIX_PACKAGE_PATH is incorrect.
> 
> --
> Ricardo
> 
> GPG: BCA6 89B6 3655 3801 C3C6  2150 197A 5888 235F ACAC
> https://elephly.net
> 

Re: Lilypond version

[Ricardo Wurmus]

Hi,

> Here's what I have in variants.scm, in case I did something wrong there:
[…]
> (define lilypond-stable

This must be “define-public” instead of “define”; alternatively, you can
add “lilypond-stable” to the list of exports in the module definition.

Without this the variable is only defined locally and won’t be visible
to Guix.

-- 
Ricardo

GPG: BCA6 89B6 3655 3801 C3C6  2150 197A 5888 235F ACAC
https://elephly.net

Re: Lilypond version

[Mason Hock]

That worked. Thanks!

On Tue, 2017-09-05 at 09:33 +0200, Ricardo Wurmus wrote:
> Hi,
> 
> > Here's what I have in variants.scm, in case I did something wrong there:
> […]
> > (define lilypond-stable
> 
> This must be “define-public” instead of “define”; alternatively, you can
> add “lilypond-stable” to the list of exports in the module definition.
> 
> Without this the variable is only defined locally and won’t be visible
> to Guix.
>