Which package installed which dependency?

Which package installed which dependency?

[Christopher Lemmer Webber]

I'm pretty sure I remembered such a feature existing but now I can't
find it.

I have a system configuration, and alarmingly I see it building PHP.
PHP???  What on earth in this system configuration needs PHP?

I'd love to see some sort of tree, or blame feature, that would allow me
to see "oh yeah, that's how the php got in there".

Does such a feature exist?

Re: Which package installed which dependency?

[Christopher Lemmer Webber]

Christopher Lemmer Webber writes:

> I'm pretty sure I remembered such a feature existing but now I can't
> find it.
>
> I have a system configuration, and alarmingly I see it building PHP.
> PHP???  What on earth in this system configuration needs PHP?
>
> I'd love to see some sort of tree, or blame feature, that would allow me
> to see "oh yeah, that's how the php got in there".
>
> Does such a feature exist?

FWIW, I figured out what it was, I think.... libsoup wanted php for its
unit tests.  Ok, less disturbing!

Still would be neat to know what this feature is, but not urgent.

Re: Which package installed which dependency?

[Pierre Neidhardt]

[-- Attachment #1: Type: text/plain, Size: 111 bytes --]

Maybe `guix gc --referrers PATH' is what you are looking for.

-- 
Pierre Neidhardt
https://ambrevar.xyz/

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 487 bytes --]

Re: Which package installed which dependency?

[zimoun]

Dear,

On Sat, 11 Jul 2020 at 20:06, Christopher Lemmer Webber <cwebber@dustycloud.org> wrote:
> I'm pretty sure I remembered such a feature existing but now I can't
> find it.
>
> I have a system configuration, and alarmingly I see it building PHP.
> PHP???  What on earth in this system configuration needs PHP?
>
> I'd love to see some sort of tree, or blame feature, that would allow me
> to see "oh yeah, that's how the php got in there".
>
> Does such a feature exist?

You could be interested by "guix graph --path" which returns the
shortest path (graph meaning) from package A to package PHP.

Hope that helps,
simon

Re: Which package installed which dependency?

[Tobias Geerinckx-Rice]

[-- Attachment #1: Type: text/plain, Size: 342 bytes --]

zimoun 写道：
> You could be interested by "guix graph --path" which returns the
> shortest path (graph meaning) from package A to package PHP.

I love this feature but it only works between high-level packages.

Is there an equivalent (say):

  λ guix graph --path /run/current-system/profile php

?

Kind regards,

T G-R

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 227 bytes --]

Re: Which package installed which dependency?

[Julien Lepiller]

Le 12 juillet 2020 07:10:06 GMT-04:00, Tobias Geerinckx-Rice <me@tobias.gr> a écrit :
>zimoun 写道：
>> You could be interested by "guix graph --path" which returns the
>> shortest path (graph meaning) from package A to package PHP.
>
>I love this feature but it only works between high-level packages.
>
>Is there an equivalent (say):
>
>  λ guix graph --path /run/current-system/profile php
>
>?
>
>Kind regards,
>
>T G-R

Try

guix graph --path -t references `readlink -f /run/current-system` php

Re: Which package installed which dependency?

[Tobias Geerinckx-Rice]

[-- Attachment #1: Type: text/plain, Size: 703 bytes --]

Julien Lepiller 写道：
> Try
>
> guix graph --path -t references `readlink -f 
> /run/current-system` php

Thanks!  I tried all ‘guix graph’ permutations I could think of, 
including that one, but:

  λ guix graph --path -t references `readlink -f 
  /run/current-system` bash
  guix graph: error: no path from '/gnu/store/cca…-system' to
  '/gnu/store/vk4…-bash-5.0.16-doc'

The guix command above is the same version of Guix that built 
current-system, and current-system's closure does contain that 
bash's :out.

I'm sure I simply don't understand exactly how ‘guix graph’ works. 
In fact I'm certain of it.  That's something I can fix.

Kind regards,

T G-R

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 227 bytes --]

Re: Which package installed which dependency?

[zimoun]

Hi Tobias,

On Sun, 12 Jul 2020 at 15:06, Tobias Geerinckx-Rice <me@tobias.gr> wrote:

>   λ guix graph --path -t references `readlink -f 
>   /run/current-system` bash
>   guix graph: error: no path from '/gnu/store/cca…-system' to
>   '/gnu/store/vk4…-bash-5.0.16-doc'
>
> The guix command above is the same version of Guix that built 
> current-system, and current-system's closure does contain that 
> bash's :out.
>
> I'm sure I simply don't understand exactly how ‘guix graph’ works. 
> In fact I'm certain of it.  That's something I can fix.

I think you identified one of the improvement already discussed when
introducing [1] the command. :-)

1: http://issues.guix.gnu.org/issue/41164#12


Basically, "guix graph --path" does not manage correctly the packages
with several outputs.

Maybe you could open a bug report for remembering to fix. :-)


All the best,
simon