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Re: how define why qtwebkit compiles every time i ru update?

From: znavko
Subject: Re: how define why qtwebkit compiles every time i ru update?
Date: Thu, 28 Feb 2019 05:06:02 +0100 (CET)

Thank you. how to look version of installed dependency, like qtwebkit? it does not appear in `guix package -I`.

I see qtwebkit is necessary for openshot, ok I let it here.

I have guix 0.16, but I installed it from 0.14 and updated every time. Please, how to check really that is using? When I run `guix package -u` it download from, but I think there is more efficient way to check if guix-daemon is using substitute server?

Feb 27, 2019, 7:09 PM by address@hidden:
On Wed, Feb 27, 2019 at 06:49:52PM +0100, address@hidden wrote:
1. How to see info about installed package?
I think `guix package -s regexp` shows everything it find in repository. Also `guix package --show=element` does the same but for exact element name. So these show info from repository. Which command let me know info about installed package? I did not found it in guix reference card and manual.

You can use `guix package --list-installed`.
2. How to determine why qtwebkit compiles every time I run `guix pull && guix package --substitute-urls= <> -u` ?
I think I have some problems in my system (may be for that I've installed blender 2.80 from my own declaration file?)

Basically, because one of your installed packages depends on qtwebkit
but qtwebkit has not been built on the build farm.

Blender does not depend on qtwebkit.

You can see what packages depend on qtwebkit like this:

$ guix graph --type=reverse-package qtwebkit | dot -Tsvg > ~/tmp/out.svg

`dot` is from graphviz.

Then view ~/tmp/out.svg however you like, for example with Inkscape.
3. And the last: is substitution server by default or I need to type it in --substitute-urls option?
By the way no any speed advantages when I type it. My last 4 updates was continuing for 2 days. And I need your help.

The default substitute server for new installations is
<>. If you installed 0.16.0 or later, it is the

If you installed before 0.16.0, you can choose to add it based on these

Attachment: out.svg
Description: image/svg

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