Re: Help-Guix Digest, Vol 88, Issue 4

[Gottfried <gottfried@posteo.de>]

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Hi,

thanks very much for your help.

I have got now 3 profiles: EmacsManifest, Musescore, Musik
in:  home/gfp/Projekte/

Now I want them to be activated at login time.

I still am not sure how to do that.

You  wrote:
I should place this code (?) in my /bash profile.

1.
How to do that?
underneath is the profile: EmacsManifest

> GUIX_PROFILE="~/guix-profiles/emacs/emacs"
>> . "$GUIX_PROFILE"/etc/profile
>> export MANPATH="$GUIX_PROFILE/share/man${MANPATH:+:}$MANPATH"
>> export INFOPATH="$GUIX_PROFILE/share/info${INFOPATH:+:}$INFOPATH"
>> ```
>> 
>> For ease of use, you should place this code in your ~/.bash_profile. In
>> this way, the profile will be activated at login time (for example,
>> through GDM) and will then be available in all of your shells as well as
>> any other programs that respect the environment variables you set (e.g.,
>> emacs).

2.
after that, could I uninstall the package emacs in my main profile?
Will my Emacs-manifest profile still be usable/is it independent,
or it will suffer through uninstalling emacs in my main profile?

My aim was to uninstall packages in my main profile and put them in 
separate profiles, so in updating my main profile with less packages
it doesn’t take so much time.

Kind regards

Gottfried



Am 06.03.23 um 02:35 schrieb Gary Johnson:
> Gottfried <gottfried@posteo.de> writes:
> 
>> thank you very much for sharing your Emacs manifest.
>>
>> I tried to do what you said.
>>
>> I created a manifest for Emacs only.
>>
>> After doing it, Guix asked me to set the PATH.
>>
>> I did it and after that this Emacs Manifest changed my general profile.
>> It became my general profile.
>> I couldn’t use my other programmes any more.
>> So I had to do a rollback.
>>
>> 1. I don’t know what I did wrong.
> 
> You didn't do anything wrong. The command I provided will create the
> next generation of your profile from the manifest file. Any packages not
> included in the manifest will be missing from that generation. It sounds
> like that's what happened in this case. If you want other packages
> installed into your profile as well, you could add them to your manifest
> file.
> 
>> 2. AFAIK to create a manifest is not yet a profile.
>> I have to create a manifest and then to create a profile with it.
>> Am I right?
> 
> Correct. A manifest is a file of Scheme code that lists the packages
> which you would like to install into a profile (or environment).
> 
> (Well, technically the manifest is the Scheme object produced by that
> code, but in practice we can think of the file as the manifest with
> little loss of information.)
> 
> You can create a temporary environment which contains the packages in a
> manifest with this command:
> 
> ```
> guix shell -m manifest.scm
> ```
> 
> To make this environment persistent, you have to create a profile like
> so:
> 
> ```
> guix package -m manifest.scm
> ```
> 
>> 2. If so, after creating a manifest, which commands do I have to use to
>> make it a separate profile?
>>
>> Probably to generate a manifest and make it a separate profile goes
>> together, but I don’t know how to do it.
> 
> Note that `guix package` will create a new profile generation in your
> user profile by default. To override this, you can specify a different
> profile that you want the generation added to instead:
> 
> ```
> guix package -m manifest.scm -p $YOUR_NEW_PROFILE_DIR
> ```
> 
> One of the perhaps slightly odd things to remember with this command is
> that $YOUR_NEW_PROFILE_DIR should repeat its final directory name twice.
> 
> Here's an example for creating a new emacs profile. In this setup, we
> assume that you have the following directory structure in your home
> directory:
> 
> ~/
> ├── guix-manifests/
> │   ├── emacs.scm
> ├── guix-profiles/
> │   ├── emacs/
> 
> You would issue the following command to install a new profile
> generation under the ~/guix-profiles/emacs/ directory, containing all
> the packages defined in ~/guix-manifests/emacs.scm:
> 
> ```
> guix package -m ~/guix-manifests/emacs.scm -p ~/guix-profiles/emacs/emacs
> ```
> 
> To activate this profile (thereby making its contents available in your
> shell environment), you would issue these commands:
> 
> ```
> GUIX_PROFILE="~/guix-profiles/emacs/emacs"
> . "$GUIX_PROFILE"/etc/profile
> export MANPATH="$GUIX_PROFILE/share/man${MANPATH:+:}$MANPATH"
> export INFOPATH="$GUIX_PROFILE/share/info${INFOPATH:+:}$INFOPATH"
> ```
> 
> For ease of use, you should place this code in your ~/.bash_profile. In
> this way, the profile will be activated at login time (for example,
> through GDM) and will then be available in all of your shells as well as
> any other programs that respect the environment variables you set (e.g.,
> emacs).
> 
> Have fun and happy hacking!
>    ~Gary
> 

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