libjpeg-8 not installable

libjpeg-8 not installable

[Andreas Enge]

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Hello,

libjpeg-8 is listed by "guix-package --list-available", and built without 
problem by "guix-build libjpeg-8". However:

$ guix-package -i libjpeg-8
libjpeg-8: package not found

Could this be related to the definition with inheritance?
(define-public libjpeg-8
  (package (inherit libjpeg)
   (name "libjpeg-8")
...
Or is it a bug in guix-package?

Andreas

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Re: libjpeg-8 not installable

[Ludovic Courtès]

Hi!

Andreas Enge <andreas@enge.fr> skribis:

> libjpeg-8 is listed by "guix-package --list-available", and built without 
> problem by "guix-build libjpeg-8". However:
>
> $ guix-package -i libjpeg-8
> libjpeg-8: package not found

(Note that you could do: guix-package -i `guix-build libjpeg-8`.)

> Could this be related to the definition with inheritance?
> (define-public libjpeg-8
>   (package (inherit libjpeg)
>    (name "libjpeg-8")
> ...

This has to do with how guix-package interprets package names.

As noted in the manual, users can write either “guix-package -i guile”
or “guix-package -i guile-2.0.7”.  In the latter case, guix-package
assumes that “2.0.7” is a version number, and then searches all packages
whose name is “guile” and whose version is “2.0.7”.

In your case, it searches for packages named “libjpeg” and whose version
number is “8”–which fails.

The fix it to not introduce the version number in the ‘name’ field, and
instead leave it in the ‘version’ field.

HTH,
Ludo’.

Re: libjpeg-8 not installable

[Andreas Enge]

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Am Samstag, 19. Januar 2013 schrieb Ludovic Courtès:
> This has to do with how guix-package interprets package names.
> 
> As noted in the manual, users can write either “guix-package -i guile”
> or “guix-package -i guile-2.0.7”.  In the latter case, guix-package
> assumes that “2.0.7” is a version number, and then searches all packages
> whose name is “guile” and whose version is “2.0.7”.
> 
> In your case, it searches for packages named “libjpeg” and whose version
> number is “8”–which fails.
> 
> The fix it to not introduce the version number in the ‘name’ field, and
> instead leave it in the ‘version’ field.

Thanks for the explanation. I was confusing scheme variable names and 
package names, which are the same most of the time. With
(define-public libjpeg-8
  (package (inherit libjpeg)
   (name "libjpeg")
   (version "8d")

$ guix-package -i libjpeg-8d
indeed works as expected.

However, now
$ guix-build libjpeg-8d
returns
libjpeg-8d: unknown package
Using the scheme variable name does not help:
$ guix-build libjpeg-8
libjpeg-8: unknown package

Could the behaviour of guix-build be made the same as that of guix-package?

Andreas

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Re: libjpeg-8 not installable

[Ludovic Courtès]

Andreas Enge <andreas@enge.fr> skribis:

> However, now
> $ guix-build libjpeg-8d
> returns
> libjpeg-8d: unknown package
> Using the scheme variable name does not help:
> $ guix-build libjpeg-8
> libjpeg-8: unknown package
>
> Could the behaviour of guix-build be made the same as that of guix-package?

Commit 5401dd7 does that.

There’s one difference compared to guix-package: guix-build doesn’t try
to parse “sub-derivation names” like guix-package does (after a
colon–see the manual), because that doesn’t make sense here since
guix-build builds all the outputs of a derivation.

BTW, you could have used:

  guix-build -e '(@ (gnu packages libjpeg) libjpeg-8)'

Less convenient, but more efficient.

Thanks!

Ludo’.

Re: libjpeg-8 not installable

[Andreas Enge]

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Am Dienstag, 22. Januar 2013 schrieb Ludovic Courtès:
> Commit 5401dd7 does that.

It almost works now, thanks! I can do

$ guix-build libjpeg-8d
and
$ guix-build libjpeg-9
but
$ guix-build libjpeg
fails:

Backtrace:
In ice-9/boot-9.scm:
 149: 12 [catch #t #<catch-closure 1e3e9c0> ...]
 157: 11 [#<procedure 1dda0f0 ()>]
In unknown file:
   ?: 10 [catch-closure]
In ice-9/boot-9.scm:
  63: 9 [call-with-prompt prompt0 ...]
In ice-9/eval.scm:
 407: 8 [eval # #]
In unknown file:
   ?: 7 [call-with-input-string "(apply (module-ref (resolve-interface 
'(guix-build)) 'guix-build) (cdr (command-line)))" ...]
In ice-9/command-line.scm:
 174: 6 [#<procedure 1d592e0 at ice-9/command-line.scm:169:3 (port)> 
#<input: string 1c02410>]
In unknown file:
   ?: 5 [eval (apply (module-ref # #) (cdr #)) #<directory (guile-user) 
1e40d80>]
In ice-9/boot-9.scm:
 149: 4 [catch srfi-34 #<procedure 22ce560 at guix/ui.scm:71:2 ()> ...]
 157: 3 [#<procedure 22d2f00 ()>]
In /usr/local/bin/guix-build:
 231: 2 [#<procedure 22c9420 at /usr/local/bin/guix-build:228:2 ()>]
In srfi/srfi-1.scm:
 664: 1 [filter-map #<procedure 22c9120 at /usr/local/bin/guix-build:233:33 
(expr)> ...]
In /usr/local/bin/guix-build:
 210: 0 [#<procedure 22c9120 at /usr/local/bin/guix-build:233:33 (expr)> #]

/usr/local/bin/guix-build:210:17: In procedure #<procedure 22c9120 at 
/usr/local/bin/guix-build:233:33 (expr)>:
/usr/local/bin/guix-build:210:17: Wrong type to apply: (#<package 
libjpeg-8d gnu/packages/libjpeg.scm:27 20fd0b0>)


Concerning guix-package,
$ guix-package -i libjpeg
installs version 8d, not the newer 9.

Even by exchanging the order of the variables, the older one gets 
installed. It looks to me as if the first found in alphabetical order is 
taken, while it should rather be the last one (not in alphabetical order, 
but lexicographically on the version number).

Andreas

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Re: libjpeg-8 not installable

[Ludovic Courtès]

Andreas Enge <andreas@enge.fr> skribis:

> $ guix-build libjpeg
> fails:
>
> Backtrace:
> In ice-9/boot-9.scm:
>  149: 12 [catch #t #<catch-closure 1e3e9c0> ...]
>  157: 11 [#<procedure 1dda0f0 ()>]
> In unknown file:
>    ?: 10 [catch-closure]
> In ice-9/boot-9.scm:
>   63: 9 [call-with-prompt prompt0 ...]
> In ice-9/eval.scm:
>  407: 8 [eval # #]
> In unknown file:
>    ?: 7 [call-with-input-string "(apply (module-ref (resolve-interface 
> '(guix-build)) 'guix-build) (cdr (command-line)))" ...]
> In ice-9/command-line.scm:
>  174: 6 [#<procedure 1d592e0 at ice-9/command-line.scm:169:3 (port)> 
> #<input: string 1c02410>]
> In unknown file:
>    ?: 5 [eval (apply (module-ref # #) (cdr #)) #<directory (guile-user) 
> 1e40d80>]
> In ice-9/boot-9.scm:
>  149: 4 [catch srfi-34 #<procedure 22ce560 at guix/ui.scm:71:2 ()> ...]
>  157: 3 [#<procedure 22d2f00 ()>]
> In /usr/local/bin/guix-build:
>  231: 2 [#<procedure 22c9420 at /usr/local/bin/guix-build:228:2 ()>]
> In srfi/srfi-1.scm:
>  664: 1 [filter-map #<procedure 22c9120 at /usr/local/bin/guix-build:233:33 
> (expr)> ...]
> In /usr/local/bin/guix-build:
>  210: 0 [#<procedure 22c9120 at /usr/local/bin/guix-build:233:33 (expr)> #]
>
> /usr/local/bin/guix-build:210:17: In procedure #<procedure 22c9120 at 
> /usr/local/bin/guix-build:233:33 (expr)>:
> /usr/local/bin/guix-build:210:17: Wrong type to apply: (#<package 
> libjpeg-8d gnu/packages/libjpeg.scm:27 20fd0b0>)

This is fixed by commit 9c9da07.

Thanks for testing!

Ludo’.